Answer:
C
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, 3) and (x₂, y₂ ) = (3, 9) ← 2 points on the line
m = [tex]\frac{9-3}{3-1}[/tex] = [tex]\frac{6}{2}[/tex] = 3 → C
Answer:
the answer is C
Step-by-step explanation:
you take 3,9 over 1,3... 3,9 so 9+ 3 over 3+ 1 it will look like a fraction 12/4 then
1, 3 you simply to get positive 3
billy buys a fridge vat at the rate of 20% is applied to the price of the fridge billy pays a total price of £480 for the fridge work out the price of the fridge before the vat is added
Answer:
$400
Step-by-step explanation:
Seeing as VAT adds to the original price we needed to go DOWN in value to find the original price. So all I did was go through trial and error and I went and saw what 20% of number like 450 and 420 were and then I added them to the price to see if it would get to £480. So when I checked 20 percent of 400 I got 80 which added to 400 gives the market price of £480.
What is the inequality of -3x-3<6
Answer:
x > -3
Step-by-step explanation:
-3x - 3 < 6
Add 3 to each side
-3x - 3+3 < 6+3
-3x < 9
Divide by -3 remembering to flip the inequality
-3x/-3 > 9/-3
x > -3
The value of (-7) 2 is negative. True or false? Please help me!!!! :'(
Answer:false
Step-by-step explanation:
(-7)^2
(-7)*(-7)
49
49 is a positive number
Answer:
It is false
Step-by-step explanation:
It is false because if you have two groups of negatives, it is positive. (-7)^2 is the same as -7x-7. Two negatives equal a positive, so the answer should be 49. 49 is positive so it is false.
Name the angle pairs that are vertical angles. Use paper and pencil. Describe an instance where you see vertical angles every day.
Answer:
Step-by-step explanation:
angle pair for vertical angles is called straight angle....
the joining between two pages of a book is a vertical angle....
the road itself is a vertical angle
Which statement illustrates the distributive property? A.3 (4 + 5) = 3 (4) + 5 B. 3 (4 + 5) = 3 (4) + 3 (5) C.3 [(4) (5)] = 3 (4) + 3 (5) D.3 [(4) (5)] = [ 3 (4)] + [ 3 (5)]
Answer:
B. 3(4+5) = 3(4) + 3(5)
Step-by-step explanation:
with distributive property, you multiply the number outside the parentheses to all of the numbers inside.
Answer:
it is B
Step-by-step explanation:
i did the test
Divide using long division.
(3x3 + 2x2 + 10) = (x - 3)
Answer:
do we have opitions
Step-by-step explanation:
The result of dividing (3x³ + 2x² + 10) by (x - 3) is 3x² + 11x + 33 with a remainder of 109.
dividing (3x³ + 2x² + 10) by (x - 3) using long division
3x² + 11x + 33
_______________________
x - 3 | 3x³ + 2x² + 0x + 10
-(3x³ - 9x²)
_______________________
11x² + 0x + 10
-(11x² - 33x)
_______________________
33x + 10
-(33x - 99)
_______________________
109
The result of dividing (3x³ + 2x² + 10) by (x - 3) is 3x² + 11x + 33 with a remainder of 109.
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Common household electric current is called alternating current because the current alternates direction within the wires. The voltage V in a typical 115-volt outlet can be expressed by the function V(t)=163 sin wt Upper V left parenthesis t right parenthesis equals 163 sine omega t
,
where omega=w
is the angular speed (in radians per second) of the rotating generator at the electrical plant and t is the time measured in seconds. It is essential for electric generators to rotate at precisely 60 cycles per sec.
How many times does the current oscillate in 0.30
sec?__times
Answer:
n = 18 cycles
Step-by-step explanation:
To know how many times does the current oscillates in the given time, you take into account that the number of oscillation can be calculated by using the following expression:
[tex]n=ft[/tex] (1)
f: frequency of the oscillation of the current
t: time = 0.30s
The frequency is the number of cycles per second, that is, f = 60 cycles/s
You replace the values of f and t in the equation (1):
[tex]n=(60\frac{cycles}{s})(0.30s)=18\ cycles[/tex]
In 0.30s the current oscillates 18 times
can you please help me its too hard
Answer:
12
Step-by-step explanation:
The area of a rectangle is l × w.
x × 11/3 = 44
x = 44 × 3/11
x = 12
Question is the ScreenShot C:
A. 12
B. 13
C. 16
D. 18
Answer:
B. 13
Step-by-step explanation:
[tex]10+(\frac{1}{2}) ^{4} *48=\\\\10+\frac{1}{2}*\frac{1}{2}*\frac{1}{2}*\frac{1}{2}*48=\\\\10+\frac{1}{16}*48=\\\\10+\frac{48}{16}=\\\\10+3=\\\\13[/tex]
Answer:
B. 13 is the answerStep-by-step explanation:
First, use PEMDAS
Parenthesis, Exponents, multiplication, division, addition, subtraction
1/2 * 1/2 * 1/2 * 1/2 = 1/16 = Parenthesis and Exponents
1/16*48 = 48/16 = 3 = Multiplication and Division
3+10 = 13 = Addition
This can conclude that 13 is the answer.
8. A goldsmith has 130 grams of a gold alloy (a mixture of gold and one or more other metals) containing 85% pure gold. How
much pure gold must be added to this alloy to obtain an alloy that is 90% pure gold?
The amount of pure gold that should be added is
(Type an integer or a decimal.)
grams.
Answer: 65 grams
Step-by-step explanation:
If 130 grams of a gold alloy (a mixture of gold and one or more other metals) containing 85% pure gold, that means the percentage of other metals will be;
100 - 85 = 15 %
You should first calculate the amount of gold that makes up this percentage.
That is, 85% of 130 grams.
85/100 × 130 = 110.5
Then, let X be what will be added to the above value to make 90%. So,
(110.5 + X) / ( 130 + X ) × 100 = 90
Divide both sides by 100
(110.5 + X) / ( 130 + X ) = 90/100
(110.5 + X) / ( 130 + X ) = 0.9
Cross multiply and open the bracket
110.5 + X = 117 + 0.9X
Collect the like terms
X - 0.9X = 117 - 110.5
0.1X = 6.5
Divide both sides by 0.1
X = 6.5/0.1
X = 65 grams
Therefore, the amount of pure gold that should be added is 65 grams
Square Root of 40,75,90,245,450,640,675 values to nearest hundredth show work.
Answer:
√40 ≈ 6.32
√75 ≈ 8.66
√90 ≈ 9.49
√245 ≈ 15.65
√450 ≈ 21.21
√640 ≈ 25.30
√675 ≈ 25.98
Step-by-step explanation:
You can use your calc or estimate your answer by simplifying (like √640 is 8√10, and estimate the square root of 10). However, getting decimals will require you to use a calc.
if 8 people can pick the apples from the trees in 6 days, how long will it take 12 people
Answer:
4 days
Step-by-step explanation:
8 people can do the job in 6 days, job is this case is picking apples.
The amount of the job (apples) is same and the only variable is number of people which changes the time accordingly.1 person can do same job for 6*8= 48 days
12 people can do same for 48/12= 4 days
Determine the value of w. options: A) 90° B) 155° C) 89° D) 25°
Answer:
Please mark me brainliest and I hope this helped!
w = 89°
Step-by-step explanation:
For this triangle, we have to get the supplementary angle of 122°. 180° - 122° is 58°. We then take 58° and add it to 33°. That is 91°. To find w, we subtract 91° from 180°. That gives us 89°.
Answer:
89
Step-by-step explanation: I took the test
Please help!!
Complete each table
Y=1/2x+3
What is the solution to the system of equations?
Answer:
Solution of the system of equations will be (6, 6).
Step-by-step explanation:
Table for the first equation,
[tex]y=\frac{1}{2}x+3[/tex]
x 0 2 4 6 8
y 3 4 5 6 7
(x, y) (0, 3) (2, 4) (4, 5) (6, 6) (8, 7)
We have got the values of y by substituting the values of x in the given equation for the table.
Similarly, for the other equation,
y = 2x - 6
x 0 2 4 6 8
y -6 -2 2 6 10
(x, y) (0, -6) (2, -2) (4, 2) (6, 6) (8, 10)
By analyzing both the tables we find (6, 6) is a common point in both the tables.
That represents the points of intersection of both the lines.
Therefore, solution of the system of equations will be (6, 6)
What is the solution to the equation 9(w – 4) – 7w = 5(3w – 2)?
w = –StartFraction 34 Over 13 EndFraction
w = –2
w = StartFraction 6 Over 13 EndFraction
w = 26
Answer:
W=2.615
Step-by-step explanation:
9w-36-7w=15w-2
2w-36=15w-2
15w-2w=-36+2
13w=34
w=34/13
W=2.615
Help please URGENT
50 POINTS!
Answer:
2y° + x° + y° + 2x° + (180-33)° = 360°
3x + 3y + 147 = 360
3(x+y) = 360 - 147
3(x+y) = 213
x+y = 71
2y + 2x + K = 180
2(x+y) + K = 180
2 *71 + K = 180
142 + K = 180
K = 38°
the last one
Answer a on edge
Step-by-step explanation:
Determine the length of AB .Write your answer in simplest form.
Answer:
Multiply to find your answer
Step-by-step explanation:
Answer:
AB= 4
Step-by-step explanation:
Big ideas :)
Brainliest for whoever gets this right
Please help ASAP!!!
Answer :
x = 2
y = -1
I hope it helps
A fruitshake costs R2,00 more than a chocolate milkshake. If 3 fruitshakes and 5 chocolate milkshakes cost R78,00, determine the individual prices.
Step-by-step explanation:
Let F represent fruitshake and C chocolate milkshake
one fruitshake cost more 2R more than chocolate shake and
3F + 5C = R78,00
Then (78 - 6) ÷ 8 = 9
a fruitshake costs R11,00 and chocolate milkshake costs 9R,00
What is the slope of the line described by the equation below?
y- 9 = -2(x-8)
O A. 2
B. -2
C. -9
ОО
D. 9
SUBMIT
Answer:
B. -2
Step-by-step explanation:
If you distribute the -2, you can see that you have -2x. Your slope-intercept form y = mx + b tells you that mx is always your slope. Therefore, your answer is B.
Karli's age now is twice what it was ten years ago. How old is Karli now? Use K for
Karli's age and write the equation
and find her age
Answer:
20
Step-by-step explanation:
K=?
K= x*2= 2x
K= 10*2 = 20
A ten year ago she was 10 and after ten years she is 20, so 20 is twice 10
Jason went shopping he bought a watch and a pair of trainers for a total price of £53.55 this price includes a 15% loyalty discount. before the discount, the trainers were priced at £38 work out the price of the watch before the discount
please help me
I'm struggling
Answer:
£25
Step-by-step explanation:
Total price- £53.55
Pair of trainers cost- £38 before discount
Discount= 15%
Cost of pair of trainers after discount:
£38 - 15%= £38*0.85= £32.3Price of the watch after discount:
£53.55 - £32.3= £21.25Price of the watch before discount:
£21.25/0.85= £25A student spends 17/35 of his pocket money on transport and fruits. He spends 5/6 of the remainder on sweets. What fraction of his pocket money does he spend on sweets?
Answer:
1/3
Step-by-step explanation:
HELP ME PLEASE THIS IS REALLY IMPORTANT
Answer:
4
Step-by-step explanation:
COUNT ALL (16) DIVIDE BY 4
Answer: 4
Step-by-step explanation:
Each baseball team has a quantity of baseballs.
To find the mean, add all quantities and divide by how many teams there are.
7 + 2 + 4 + 3 = 16
16 / 4 = 4
andrea spent $40 at a shoe store. she bought a pair of shoes for $25 and 5 identical pairs of socks. how much was each pair of socks? write an equation to represent this situation. use x to represent the price of each pair of socks.
The equation representing this situation is 25 + 5x = 40, where x represents the price of each pair of socks.
To determine the price of each pair of socks, we can set up an equation based on the given information.
Let's assume that the price of each pair of socks is represented by x.
Andrea bought 5 identical pairs of socks, so the total cost of the socks is 5x.
Additionally, she bought a pair of shoes for $25.
Considering the total amount spent at the shoe store is $40, we can write the equation as follows:
25 + 5x = 40.
This equation represents the total cost of the shoes and socks equaling the amount Andrea spent.
To find the price of each pair of socks, we solve the equation for x.
First, subtract 25 from both sides:
5x = 40 - 25,
5x = 15.
Then, divide both sides by 5 to isolate x:
x = 15 / 5,
x = 3.
Therefore, each pair of socks costs $3.
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A battalion of 880 people is made up of four companies. Each company is made up of five platoons. Each platoon contains four squads. If each company has the same number of people, as do each platoon and each squad, how many people are in each squad?
Answer:
11 people are in each squad.
Step-by-step explanation:
A battalion of 880 people is made up 4 companies.
880/4 = 220 people
which means 1 company is made up of 220 people.
Each company is made up of 5 platoons.
220/5 = 44
which means each platoon is made up of 44 people
Each platoon contains 4 squads
44/4=11
which means each squad contains 11 people.
therefore each squad contains 11 people.
The amount of energy it takes to lift a box might be a function of which of
the following?
O A. The time of day that you are lifting ít
B. The weight of the objects inside the box
C. The shape of the box
Answer:
The amount of energy it takes to lift a box might be a function of the weight of the objects inside the box. Work is proportional to force and distance. The force of the box is the weight itself of the box. Hence the answer to this problem is B.
Step-by-step explanation:
15. Solve for x in the diagram.
Х
9
12
A. 15
B. 25
C. 14
O D. 37
Answer:
15Solution,
Hypotenuse(h)=X
Perpendicular (p)=9
Base(b)=12
Now,
Using Pythagoras theorem,
[tex] {h}^{2} = {p}^{2} + {b}^{2} \\ or \: {x}^{2} = {(9)}^{2} + {(12)}^{2} \\ or \: {x}^{2} = 81 + 144 \\ or \: {x}^{2} = 225 \\ or \: x = \sqrt{225} \\ or \: x = \sqrt{ {(15)}^{2} } \\ x = 15[/tex]
hope this helps...
Good luck on your assignment...
The length of the hypotenuse in the given triangle is A. 15 units.
This type of question makes a right-angled triangle that can be solved by Pythagoras's theorem.
What is Pythagoras's theorem?In a right-angled triangle, the sum of the squares of the smaller two sides of a right-angle triangle is equal to the square of the largest side.
Given, the base of the triangle is 12 units and the height is 9 units.
∴ x² = 9² + 12².
x² = 144 + 81.
x² = 225.
x = + 15 units.
So, the length of the hypotenuse is 15 units.
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Simplify 6(3+4) -5(1+2) need answer
Answer:
27
Step-by-step explanation:
[tex]6(3+4)-5(1+2)= \\\\6(7)-5(3)= \\\\42-15= \\\\27[/tex]
Hope this helps!
Answer:
27
Step-by-step explanation:
6(3+4)-5(1+2)=
6(7)-5(3)=
42-15=
27
What type of triangle center is shown as point H in the figure? ANSWERS: A) Orthocenter B) Circumcenter C) Incenter D) Centroid
Answer:
D) Centroid
Step-by-step explanation:
DB,AG and CE are medians of the triangle and when they intersect at one point, their point of concurrency is called centroid.
Answer: D (Centeriod)
Step-by-step explanation:
Because point H is in the center of the triangle, and the centeroid is located in the center of the triangle