Answer:
Step-by-step explanation:
f(x)=-5x+5
f(-5)=-5(-5)+5
f(-5)=25+5=30
Answer:
30Step-by-step explanation:
X = -5 ( Given)
Now,
[tex]f(x) = - 5x + 5[/tex]
plugging the value of X
[tex] = - 5 \times ( - 5) + 5[/tex]
Calculate the product
[tex] = 25 + 5[/tex]
Calculate the sum
[tex] = 30[/tex]
Hope this helps...
Good luck on your assignment ....
Can someone help me with this question please.
which of the following expressions is equivalent to 3a-2ax4a+6a? (a) 4a^2+6a (b)3a-20a^2 (c) 9a-8a^2 (d) a^2
Answer:
[tex] \boxed{\sf (c) \ 9a - 8 {a}^{2}} [/tex]
Step-by-step explanation:
[tex] \sf Simplify \: the \: following: \\ \sf \implies 3a - 2a \times 4a + 6a \\ \\ \sf - 2a \times 4a = - 2 {a}^{2} \times 4 : \\ \sf \implies \boxed{ \sf - 2 {a}^{2} \times 4} + 3a + 6a \\ \\ \sf - 2 \times 4 = - 8 : \\ \sf \implies \boxed{ \sf- 8} {a}^{2} + 3a + 6a \\ \\ \sf 3a + 6a = 9a : \\ \sf \implies 9a - 8 {a}^{2} [/tex]
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The final expression of the expression 3a - (2a x 4a) + 6a is
9a - 8a².
Option C is the correct answer.
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example:
2 + 3x + 4y = 7 is an expression.
3x + 5 + 3 is an expression.
4x = 6 is an expression.
We have,
3a - (2a x 4a) + 6a
3a - 8a² + 6a
Combine like terms.
9a - 8a²
We can also write,
-8a² + 9a
There is no common factor or like terms to simplify further.
So,
9a - 8a²
Thus,
The final expression of the expression 3a - (2a x 4a) + 6a is
9a - 8a².
Option C is the correct answer.
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Nicole is trying to determine an algebraic expression to represent the amount of dog biscuits she needs to purchase for a dog show. She does not know how many dogs will attend the event but wants to have 2 biscuits per dog plus an additional 35 dog biscuits. If d represents the number of dogs, which expression represents the number of dog biscuits Nicole will need for the event? d + 5 2 d + 35 2 d 2 d minus 35
Answer:
2d + 35
Step-by-step explanation:
2 per dog (d) plus an additional 35 treats = 2d + 35
Answer:
b
Step-by-step explanation:
Jay says that this graph represents a proportional
relationship. Is he correct? Explain.
Answer:
Sample Response:
No, he is not correct. Jay drew a line through the origin, but the line did not connect all three points. Not all the points lie on the line, which is necessary for a proportional relationship.
alternative response:
No. He is not correct, this graph does not represent a proportional relationship. The graph of a proportional relationship must be a straight line connecting all points and passing through the origin.. as well as not even connecting all three points on the graph.
In a directly proportional relationship, increasing one variable will increase another. It is not a proportional relationship graph.
What is a directly proportional and inversely proportional relationship?Let there are two variables p and q
Then, p and q are said to be directly proportional to each other if
p = kq
where k is some constant number called the constant of proportionality.
This directly proportional relationship between p and q is written as
p∝q where that middle sign is the sign of proportionality.
In a directly proportional relationship, increasing one variable will increase another.
Now let m and n be two variables.
Then m and n are said to be inversely proportional to each other if
[tex]m = \dfrac{c}{n} \\\\ \text{or} \\\\ n = \dfrac{c}{m}[/tex]
(both are equal)
where c is a constant number called the constant of proportionality.
This inversely proportional relationship is denoted by
[tex]m \propto \dfrac{1}{n} \\\\ \text{or} \\\\n \propto \dfrac{1}{m}[/tex]
As visible, increasing one variable will decrease the other variable if both are inversely proportional.
A proportional relationship is a relationship in which the value of one variable changes with the change in another variable. This change is always in a fixed ratio. Thus, when the relationship is plotted on the graph it creates a straight line and all the data points lie on this line.
Since in the graph made by Jay the line is not able to connect all the data points, it is not a proportional relationship graph.
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which of the following is 2-dimesional and infinitely large
Answer:
Hey there!
Are there any options? If not, my answer would be a plane. A plane is 2 dimensional and infinitely large.
Hope this helps :)
Janet has six candy bars she will split it into 2/3 size pieces. How many 2/3 size pieces will she get?
━━━━━━━☆☆━━━━━━━
▹ Answer
9 pieces
▹ Step-by-Step Explanation
6 ÷ 2/3 → 6 x 3/2
18/2 = 9
9 pieces
Hope this helps!
- CloutAnswers ❁
Brainliest is greatly appreciated!
━━━━━━━☆☆━━━━━━━
Answer: 9 2/3 size pieces
Step-by-step explanation:
Simply divide 6 by 2/3 to get 9.
The hypotenuse and a leg of a particular right triangle are $\sqrt{97}$ inches and 4 inches, respectively. The area of this triangle is what common fraction of a square foot?
Answer: 1/8
Step-by-step explanation:
Hypotenuse = √97
One leg = 4
By Pythagoras theorem, second leg² = (√97)² - 4²
= 97 - 16 = 81
So second leg = 9
Area of triangle = 4 x 9 / 2 = 18 sq inch
One sq foot = 144 sq inch
So required fraction = 18/144 = 1/8
Answer:
1/8
Step-by-step explanation:
If you were to take a typical payday loan for $150, with an interest rate of 24.5% due in full after two weeks, what is the total amount you would have to repay?
Answer:
$186.75
Step-by-step explanation:
In order to solve this, we first need to convert the percentage into a decimal which can be done by dividing it by 100 like so
24.5 % 100 = 0.245
Now that we have the decimal form of the percentage we add a 1 to it and multiply that by $150 in order to get the total amount that is owed after two weeks .... without the 1 added it would only give us the amount of interest that needs to be paid.
$150 * 1.245 = $186.75
Therefore after two weeks you would need to pay a total of $186.75
Natalie is shopping for new clothes and does not want to spend more than $65. She buys one dress for $26 and wants to buy a few shirts that cost $13 each. Which inequality represents the number of shirts she can buy? A. x≥7 B. x≤7 C. x≥3 D. x≤3
Answer:
D. x ≤ 3
Step-by-step explanation:
26 + 13x ≤ 65
13x ≤ 65-26
13x ≤ 39
13x ≤ 39 ÷13
x ≤ 3
I need help answering this so please help
Answer:
(2, f(2))
Step-by-step explanation:
f(x) = -3x^2
For point B, the y-coordinate is f(2).
Point B is (2, f(2))
3. The pie chart illustrates the values of various goods sold by a certain shop.
If the total value of the sales was $24000, find the sales value of:
a) toys
b) grass
seed
Food
4
c) records
d) food.
45 790
Toys/60° Records
Grass
seed
It’s q 3 please
Answer:
Records: $6000
Grass Seed: $4000
Toys: $3000
Food: $11000
Step-by-step explanation:
We have to use the number of degrees in each category in comparison to the total number of degrees in a circle, 360 degrees. Records is 90 degrees, so 90:360 = 1:4 = 1/4. So 1/4 of the total pie is $6000. For food, we add the other sub-category's costs, and subtract that from $24000.
Answer:
Toys = 3000Grass seed = 4000Records = 6000Foods = 11000Step-by-step explanation:
1. Toys = [tex] \frac{45}{360} \times 24000 = 3000[/tex]
2. Grass seed[tex] = \frac{60}{360 } \times 24000 = 4000[/tex]
3. Records = [tex] \frac{90}{360} \times 24000 = 6000[/tex]
4. Food = 24000 - ( 3000+4000+6000)
= 24000 - 13000
= 11000
Hope this helps...
Best regards!!
Can someone help me please?
Answer:
336km^2
Step-by-step explanation:
There are 2 triangles and 3 squares in this 3D shape.
To find the surface area of this shape, you need to find the area add all the 5 shapes (height ✖️length) and add them.
area of the triangle: 8✖️9/2=36 +36<-- 2nd triangle=72km^2
area of a square: 11✖️8=88✖️3=264km^2
264+72=336km^2
It takes an hour to mow a lawn using a mower with blades 14 inches wide. How long would it take using a mower with blades 12 inches wide?
Answer: It would take 40 minutes to mow a lawn with a mower containing 12-inch wide blades.
Step-by-step explanation:
If the time taken by 14 inches wide is one hour then the blade of 12 inches wide will take 1 hour 17 minutes to mow a lawn.
What is width?The width of something is the measurement of one side of a body. It is generally less than length of that body or shape.
How to calculate time?We have been given time of 1 hour if blade is 14 inches wide and we have to calculate time taken by 12 inches wide blade:
It will be as 14/12* 1 hour
=14/12
=1.167
=1.17 hour
Hence the time taken by the blade of 12 inches wide will be 1 hour and 17 minutes.
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Factor this trinomial.
x² + 2x-3
A. (x + 3)(x + 1)
B. (x + 3)(x - 1)
C. (x-3)(x - 1)
D. (x-3)(x + 1)
Answer:
the answer is (x+3)(x-1).
hope u get it....
Answer:
B
Step-by-step explanation:
x^2 +3x -x -3 = x(x+3) -(x+3)=(x-1)(x+3)
Here's a graph of a linear function. Write the
equation that describes that function.
Express it in slope-intercept form.
Answer:
Step-by-step explanation:
(0,5), (1,0)
(0-5)/(1-0)= -5/1= -5
y - 0 = -5(x - 1)
y = -5x + 5
find the time taken for rupees 12502 on an interest of rupees 1020 at the rate of 4% compounded annually
Answer:
t = 63.897 years
Step-by-step explanation:
Simple interest rate formula: A = P(1 + r)^t
Simply plug in what we know and solve:
12502 = 1020(1 + 0.04)^t
6251/510 = 1.04^t
log base 1.04 of (6251.510) = 63.897
In a causal-comparative study, what is the difference between independent variables and dependent variables? independent variables cause the effect measured in the dependent variables dependent variables cause the effect measured in the independent variables dependent variables are those that affect each other; independent variables do not independent variables exist before the study; dependent variables do not
Answer: independent variables cause the effect measured in the dependent variables
Step-by-step explanation: In a causal - comparative study, the dependent variables refers to the variable whose changes is being measured or observed. The changes or alteration of the dependent variable is induced by the different values of the independent variable. In causal - comparative study, the different independent variables is assumed to have a direct impact on the output or values of the dependent variable which is measured by the experimenter. Therefore, the independent variable does not change, but causes the observed changes noticed in the dependent variable.
A can in the shape of a cylinder has a diameter of 6 centimeters and a height of 10 centimeters. Which measurement is closest to the total surface area of the can in square centimeters? 245.04 cm2 203.19 cm2 376.99 cm2 188.50 cm2
Answer:
245.04 cm²
Step-by-step explanation:
Use the formula for the surface area of a cylinder: 2[tex]\pi[/tex]r² + 2[tex]\pi[/tex]rh
Now, we can plug in the values:
2[tex]\pi[/tex](3)² + 2[tex]\pi[/tex](3)(10)
18[tex]\pi[/tex] + 60[tex]\pi[/tex] = 245.04
The total surface area of the can is 244.92 square centimeters which is closest to 245.04 square centimeters.
We have a can in the shape of a cylinder has a diameter of 6 centimeters and a height of 10 centimeters.
We have to determine total surface area of the can in square centimeters.
What is the formula to calculate the total surface area of a cylinder with radius 'r' and height 'h'.The total surface area of a cylinder with radius 'r' and height 'h' is given by -
A = 2πr(h + r)
According to the question, we have -
diameter of can = 6 cm
Then, the radius will be (r) = 6/2 = 3 cm
Height of can (h) = 10 cm
Substituting the values, we get -
A = 2 x 3.14 x 3 (10 + 3)
A = 2 x 3.14 x 3 x 13
A = 6 x 13 x 3.14
A = 78 x 3.14
A = 244.92 square centimeters.
Hence, the total surface area of the can is 244.92 square centimeters which is closest to 245.04 square centimeters.
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Which equation describes a parabola that opens left or right and whose
vertex is at the point (h, v)?
A. y = a(x - 1)2 + 1
B. x = aly - y)2 + h
C. x = aly - h)2 + V
O D. y = a(x - h)2 + V
Answer:
B. x = a(y - v)^2 + h
Step-by-step explanation:
The basic equation is ...
x = f(y)
x = y^2
To translate the vertex from (0, 0) to (h, v), we replace x with (x-h) and y with (y-v). Now, we have ...
x -h = (y -v)^2
To scale the graph horizontally by a factor of "a", we multiply the right side by "a":
x -h = a(y -v)^2
Adding h gives the form you want to compare to the answer list:
x = a(y -v)^2 +h
_____
The attachment shows an example for (h, v) = (4, 3).
Answer:
B
Step-by-step explanation:
Hopefully this helps :)
∠ADB and ∠BDC represent a linear pair because points A, D, and C lie on a straight line. Calculate the sum of m∠ADB and m∠BDC. Then move point B around and see how the angles change. What happens to the sum of m∠ADB and m∠BDC as you move point B around?
Answer:
Hello There. ☆°~-----__▪●▪__-----~°☆
If points A, D and C lie on a straight line, then angles ∠ADB and ∠BDC are supplementary angles and
m\angle ADB+m\angle BDC=180^{\circ}.
1. If you move point B right from the initial position, then m∠ADB increases and m∠BDC decreases, but m\angle ADB+m\angle BDC=180^{\circ}.
2. If you move point B left from the initial position, then m∠ADB decreases and m∠BDC increases, but m\angle ADB+m\angle BDC=180^{\circ}.
3. When point B lie on the line ADC, then:
a. Point B lies on the right hand from point D: m\angle ADB=180^{\circ} \\m\angle BDC=0^{\circ} ;
b. Point B lies on the left hand from point D: m\angle ADB=0^{\circ} \\m\angle BDC=180^{\circ} .
4. When point B is reflected about the line ADC situation is the same as in parts 1 and 2.
Hope It Helps!~ ♡
ItsNobody~ ☆
Answer:
The sum of m∠ADB and m∠BDC remains the same: m∠ADB + m∠BDC = 180°.
Step-by-step explanation:
PLATO answer.
A pack of 6 red pens costs £2.76. What is the price per pen?
Answer:
0.46 each
Step-by-step explanation:
Answer:
£0.46 per pen
Step-by-step explanation:
We need to find the unit rate, or price per pen.
Therefore, we can divide the price by the number of pens.
price / number of pens
It costs £2.76 for 6 pens.
price= £2.76
number of pens = 6 pens
£2.76 / 6 pens
Divide 2.76 by 6
£0.46 / pen
The price per pen is £ 0.46
plz help me plz I'm very desperate
Answer:
3/50
Step-by-step explanation:
for one its 3/10
for the other one is 3/10 too bc u replaced it
so u multiply 3/10 by 3/10 which is 6/100 which is simplify to 3/50
hope this helps
Renzo leyo 20% de un libro de cuentos el lunes y 1/4 de las paginas restantes el martes le quedan 180 paginas por leer ¿ cuantas paginas tiene el libro
Answer:
El libro que Renzo está leyendo tiene 300 páginas.
Step-by-step explanation:
Dado que Renzo ha leído el 20 por ciento del libro de cuentos, en principio le queda leer el 80 por ciento de éste. Ahora bien, de las páginas restantes (es decir, de ese 80 por ciento) ha leído 1/4 parte. Por ende, ha leído un 20 por ciento adicional de dicho libro (80 /4 x 1 = 20). En conclusión, Renzo lleva leído un 40 por ciento del libro, con lo cual le resta leer un 60 por ciento, que está formado por 180 páginas. Para determinar cuántas páginas tiene el libro, entonces, hay que realizar el siguiente cálculo:
180 / 60 = 3 (valor del 1 por ciento del libro)
3 x 100 = 300 (valor del 100 por ciento del libro)
Por lo tanto, el libro que Renzo está leyendo posee 300 páginas.
Which expression is equivalent to 2√98 x √2?
1) 14√2
2) 784
3) 4√98
4) 28
Answer: 28
Step-by-step explanation: √98 x √2 = √196
√196 = 14
2×14= 28
Answer:
4) 28. I don't know how to explain it...
HELP plz!!! first person to answer will get brainiest!!! Angela’s average for six math tests is 87. On her first four tests she had scores of 93, 87, 82, and 86. On her last test, she scored 4 points lower than she did on her fifth test. What scores did Angela receive on her fifth and sixth tests? a.fifth test = 90; sixth test = 86 b.fifth test = 89; sixth test = 85 c.fifth test = 85; sixth test = 89 d.fifth test = 85; sixth test = 81
Answer:
A. fifth test = 90; sixth test = 86
WILL GIVE BRAINLIEST Jorge solves the equation 4x - (x + 20) + 6 = 2(3x + 8) using the steps below. Step 1: 4x - x + 2 + 6 = 6x + 16 Step 2: 3x + 8 = 6x + 16 Step 3: 8 - 16 = 6x - 3x Step 4: -8 = 3x Step 5: -8/3 = x Jorge verifies his solution by substituting -8/3 into the original equation for x. He determines that his solution is incorrect. Which best describes Jorge’s error? A. Jorge distributed incorrectly. B. Jorge incorrectly combined like terms. C. Jorge incorrectly applied the addition and subtraction properties of equality. D. Jorge incorrectly applied the multiplication and division properties of equality.
Answer:
A. Jorge distributed incorrectly.
Step-by-step explanation:
4x - (x + 20) + 6 = 2(3x + 8)
4x - x - 20 + 6 = 6x + 16
3x - 14 = 6x + 16
3x - 6x = 16 + 14
-3x = 30
x = -10
For Step 1 of Jorge's work, he writes "4x - x + 2 + 6 = 6x + 16", instead of "4x - x - 20 + 6 = 6x + 16". That is the error that messes up the rest of his calculations.
What he did wrong does not apply to addition, subtraction, multiplication, or division, so we can eliminate choices C and D. Jorge isn't combining like terms, either, so we can eliminate choice B. What Jorge did wrong was that he distributed incorrectly, so that is your answer: A. Jorge distributed incorrectly.
Hope this helps!
Answer:
A is correct and thank you to the other person who answered i didn’t fail
Step-by-step explanation:
just took the quiz on edge
The temperature outside is -5°F, and the wind chill is -12°F. What is the difference between the temperature and wind chill?
Answer:
-7
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
The cost of six hens and one duck at the university poultry farm is GH₵40. While four hens and three ducks cost GH₵36. What is the cost of each type of bird?
Answer:
Step-by-step explanation:
Let's call hens h and ducks d. The first algebraic equation says that 6 hens (6h) plus (+) 1 duck (1d) cost (=) 40.
The second algebraic equations says that 4 hens (4h) plus (+) 3 ducks (3d) cost (=) 36.
The system is
6h + 1d = 40
4h + 3d = 36
The best way to go about this is to solve it by substitution since we have a 1d in the first equation. We will solve that equation for d since that makes the most sense algebraically. Doing that,
1d = 40 - 6h.
Now that we know what d equals, we can sub it into the second equation where we see a d. In order,
4h + 3d = 36 becomes
4h + 3(40 - 6h) = 36 and then simplify. By substituting into the second equation we eliminated one of the variables. You can only have 1 unknown in a single equation, and now we do!
4h + 120 - 18h = 36 and
-14h = -84 so
h = 6.
That means that each hen costs $6. Since the cost of a duck is found in the bold print equation above, we will sub in a 6 for h to solve for d:
1d = 40 - 6(6) and
d = 40 - 36 so
d = 4.
That means that each duck costs $4.
6th grade RATIOS
I don’t know how this is supposed to work do I start as
3:9 or 3:4 or 4:9 or 4:3 or 9:4? How do I start?
Answer:
i would say b
Step-by-step explanation: if they all slept 4 hours a night then all 9 would have a total of 36 and a night would be 1 so 36 to 1
Drag each tile to the table to multiply each row heading by
each column heading.
Answer:
Hey there!
4t(5t)=20t^2
4t(-4)=-16t
5(5t)=20t
5(-4)=-20
Hope this helps :)
Step-by-step explanation:
This is just a matter of multiplication. 4t x 5t = [tex]20t^{2}[/tex], so that will be in your first box. 4t x -4 = -16t, so that'll be in your second box. 5 x 5t = 25t, so that will be in your bottom-first box, and 5 x -4 = -20, so that will be in your last one.