Answer:
Options (1), (3), and (5)
Step-by-step explanation:
In the figure attached,
An inequality has been graphed and the shaded region shows its solutions.
Inequality : y < 0.5x + 2
If the given points in the options lie in the shaded region, point will satisfy the inequality.
For (3, -2)
-2 < 0.5(3) + 2
-2 < 3.5 [True]
Therefore, (3, -2) point is the solution.
For (-2, 1)
1 < 0.5(-2) + 2
1 < -1 + 2
1 < 1 [Not true]
Therefore, (-2, 1) is not the solution.
For (-1, -2)
-2 < 0.5(-1) + 2
-2 < 1.5 [True]
Therefore, (-1, -2) is the solution.
For (-1, 2)
2 < 0.5(-1) +2
2 < 1.5 [Not True]
Therefore, (-1, 2) is not the solution.
For (1, -2)
-2 < 0.5(1) + 2
-2 < 2.5 [True]
Therefore, (1, -2) is the solution.
Options (1), (3) and (5) will be the answer.
Answer:
A, C, and E
Step-by-step explanation: Rate it 5 stars and give it a thanks. I took the test you can comment a question i will answer back.
OKAY HELP so Raegan has a rectangular breadspread that is 238 cm by 435 cm. She wants to sew a fringe around the bread spread. what is the perimiter of the bed spread??? figured that out its 1346 but then it says raegan gets a new breadspread that is 27 cm longer. whats the perimiter now?
Answer:
The new perimeter is 1400 cm
Step-by-step explanation:
The perimeter of the bedspread is the perimeter of a rectangle, whose formula is:
Perimeter = 2 * width + 2 * length
Then the perimeter of the initial bed spread is:
Perimeter = 2 * (238 cm) + 2 * (435 cm) = 1346 cm
as you calculated.
Now, she gets a new bedspread that is 27 cm longer. So the new dimensions are 238 cm width, and (435 + 27) cm length, then the perimeter becomes:
Perimeter = 2 * (238 cm) + 2 * (462cm) = 1400 cm
Work out m and c for the line: y = x + 4
Answer:
Step-by-step explanation:
PLEASE SHOW WORK A coffee distributor needs to mix a(n) Gualtemala Antigua coffee blend that normally sells for $10.30 per pound with a Tanzanian coffee blend that normally sells for $13.80 per pound to create 60 pounds of a coffee that can sell for $12.46 per pound. How many pounds of each kind of coffee should they mix? Answer: They must mix ________ pounds of the Gualtemala Antigua Blend ________pounds of the Tanzanian Blend. (Round your answers to the nearest whole number of pounds.)
Answer:
23 pounds of the Gualtemala Antigua Blend and 37 pounds of the Tanzanian Blend
Step-by-step explanation:
you need to make a system of equations to solve this.
First lets make x be the pounds of Gualtemala Antigua coffee blend and y the pounds of Tanzanian coffee blend
we know we need 60 pounds total so first equation is
x+y=60
Next we will make an equation based on the money information
10.30x + 13.80y = 12.46(60)
10.30x + 13.80y = 747.60
So our system of equations is
x + y = 60
10.30x + 13.80y = 747.60
I will solve this by using substitution. first rewrite x+y=60 to y=60-x
now i can substitute that into the other equation for y and solve for x
10.30x + 13.80(60-x) = 747.60
10.30x + 828 -13.80x = 747.60
-3.5x + 828 = 747.60
-3.5x = -80.4
x = 23 (rounded from 22.9714 since they requested that)
now I can use this solution to solve for y by plugging into one of the original equations
x + y =60
23 + y =60
y = 37
Finally we can say that they must mix 23 pounds of the Gualtemala Antigua Blend and 37 pounds of the Tanzanian Blend.
Divide £506 in the ratio 2:4:5
Answer:
£92 , £184 and £230
Step-by-step explanation:
Total = £506
Ratio = 2:4:5
Total Parts: 2+4+5 = 11
Part 1:
=> [tex]\frac{2}{11}* 506[/tex]
=> 2 * 46
=> £92
Part 2:
=> [tex]\frac{4}{11}* 506[/tex]
=> 4 * 46
=> £184
Part 3:
=> [tex]\frac{5}{11}* 506[/tex]
=> 5 * 46
=> £230
Answer:
Step-by-step explanation:
£506
2+4+5=11
506/11=46
2x46=£92
4x46=£184
5x46=£230
92+184+230=£506
Jerry uses an exercise program to help him eventually do 100 push-ups. He started with 17 push-ups in Week 1 and planned to increase the number of push-ups by 2 each week. Show your work. a) In which week does Jerry expect to reach his goal? b) What is the total number of push-ups he will have done when he reaches his goal?
Answer:
(a) Jerry expect to reach his goal by week 43rd.
(b) The total number of push-ups Jerry will have done when he reaches his goal is 2,537.
Step-by-step explanation:
It is provided that Jerry wants to do 100 push-ups. He started with 17 push-ups in Week 1 and planned to increase the number of push-ups by 2 each week.
the number of push-ups done each week by Jerry follows a arithmetic progression with the first terms as, a = 17, common difference as, d = 2 and the last terms as, l = 100.
(a)
Compute the number of week it takes Jerry to reach his goal as follows:
The nth term of an AP is:
[tex]t_{n}=a+(n-1)d[/tex]
Compute the value of n as follows:
[tex]t_{n}=a+(n-1)d[/tex]
[tex]100=17+(n-1)\cdot 2\\\\100-17=(n-1)\cdot 2\\\\83=2n-2\\\\2n=85\\\\n=42.5\\\\n\approx 43[/tex]
Thus, Jerry expect to reach his goal by week 43rd.
(b)
Compute the total number of push-ups he will have done when he reaches his goal as follows:
The sum of n terms of an AP is:
[tex]S_{n}=\frac{n}{2}\cdot [2a+(n-1)d][/tex]
Compute the sum as follows:
[tex]S_{n}=\frac{n}{2}\cdot [2a+(n-1)d][/tex]
[tex]=\frac{43}{2}\cdot [2\cdot 17+(43-1)\cdot 2]\\\\=43\cdot [17+42]\\\\=2537[/tex]
Thus, the total number of push-ups Jerry will have done when he reaches his goal is 2,537.
please help i’ll give u brainlest
Answer:
y=6cos 45° +4
=6(1/√2)+4
=6/√2+4
Step-by-step explanation:
y=acosx+b
find a and b
y=b=4 when x=90 degrees because cos 90=0
find a : when x=60 degrees, y=7
7=acos60°+4
7=a(1/2)+4
a/2=3
a=6
y=6cos 45° +4
=6(1/√2)+4
=6/√2+4
30 POINTS! and brainliest if you have the best answer
1. How can you set up a spinner so that an event is likely?
2. How can you set up a spinner so that an event is unlikely?
3. How can you set up a spinner so that an event is impossible?
4. How can you set up a spinner so that an event is certain?
Answer:
hey guys whats up!
i think your answer is
1. you can spin the spinner a certain way and it is more likely to land on the answer you want or if it has anything to do with colors then make the color you want to take up more space.
2.you can as the other question above states do the opposite.
3.to make an event impossible you can do this:if it is a color leave it out,this means that it will not land on it so it is impossible.
4.to make an event certain you can do the opposite of answer 3
Step-by-step explanation:
hope this helps
thx
pls put brainliest
Which undefined geometric term can be described as a one-dimensional set of points that has no beginning or end?
Using the quadratic formula, which of the following are the zeros of the quadratic equation below
Answer:
the answer for this question is D
Answer:
Correct answer is actually B
Step-by-step explanation:
I used someone’s answer with their work shown for my test
Find the value of each expression -7+12+15
Answer:
20
Step-by-step explanation:
What is the length, in units, of segment CD?
Answer:
The answet is C.
Step-by-step explanation:
First, you have to find the angle of ACB using Sine Rule, sinθ = opposite/hypotenuse :
[tex] \sin(θ ) = \frac{oppo.}{hypo.} [/tex]
[tex]let \: oppo. = 4 \\ let \: hypo. = 5[/tex]
[tex] \sin(θ) = \frac{4}{5} [/tex]
[tex]θ = {\sin( \frac{4}{5} ) }^{ - 1} [/tex]
[tex]θ = 53.1 \: (1d.p)[/tex]
Given that line AB is parallel to line CD so ∠C = 90°. Next, you have to find the angle of ACD :
[tex]ACD = 90 - 53.1 = 36.9[/tex]
Lastly, you can find the length of CD using Cosine rule, cosθ = adjacent/hypotenuse :
[tex] \cos(θ) = \frac{adj.}{hypo.} [/tex]
[tex]let \: θ = 36.9 \\ let \: adj. = 5 \\ let \: hypo. = CD[/tex]
[tex] \cos(36.9 ) = \frac{5}{CD} [/tex]
[tex]CD \cos(36.9) = 5[/tex]
[tex]CD = \frac{5}{ \cos(36.9) } [/tex]
[tex]CD = 6.25 units\: (3s.f)[/tex]
how do you write the number five million four thousand three hundred in standard form
Answer:
5,004,300
Step-by-step explanation: Its just how you do it
12x+7< -11 AND 5x−8≥40 need help asap
Answer:
B
Step-by-step explanation:
Let's solve 12x + 7 < -11.
12x < -18
x < -3/2
Solving 5x − 8 ≥ 40 we get:
5x ≥ 48
x ≥ 48 / 5
Since it says AND, the answer is no solution.
Describe the graph of y > mx, where m > 0. Plz wright it in your own words I do not want a "Sample Response" if it is I will not thank you and I will report you
Answer:
that graph will feature an area delimited by a line of slope m passing through the origin (0,0). Since m>0 the slope is positive, meaning the line goes up. Since the equation is y > mx, the inequality sign being >, that means the area represented will be ABOVE the line drawn.
A wedding ring costs £13000. Work out the price after a 11% price increase.
Answer:
£ 14430
Step-by-step explanation:
Costing price = £13000
Increase = 11% of 13000
=> 11/100 × 13000
=> 11 × 130
=> £ 1430
Increased Price = 13,000+1430
=> £ 14430
Suponha que uma variável assume os valores: 11 – 8 – 7 – a – 16 – 10 Determine a de modo que a média aritmética seja igual 11.
Answer:
a = 14
Step-by-step explanation:
The mean is the sum of the values divided by the number of values.
[tex]\begin{array}{rcl}\text{Mean}&= &\dfrac{11 + 8 + 7 + a + 16 + 10}{6}\\\\\dfrac{52 + a}{6}& = & 11\\52 + a & = & 66\\a & = & 66 - 52\\& = & \mathbf{14}\\\end{array}[/tex]
Match each whole number with a rational, exponential expression. please help
The answer to your question is below
Step-by-step explanation:
1.- ∛27² = ∛729 = ∛ 3⁶ = 3⁶/³ = 3² = 9
Find the prime factors
729 3
243 3
81 3
27 3
9 3
3 3
1
2.- 64²/³ = ∛64² = ∛4096 = ∛ 2¹² = 2¹²/³ = 2⁴ = 16
3.- (∛3375)² = ∛3⁶5⁶ = 3⁶/³ 5⁶/³ = 3² 5² = 9 x 25 = 225
4.- (2744)² ¹/³ = ∛2744² = ∛7529536 = ∛2⁶7⁶ = 2⁶/³ 7⁶/³ = 2² 7² = 4 x 49 = 196
5.- 125²/³ = ∛ 15625 = 5⁶/³ = 5² = 25
6.- ∛4096² = ∛16777216 = 2²⁴/³ = 2⁸ = 256
Charge q is one unit of distance away from the source charge s. Charge p is two times further away. The force exerted between S and q is ? The force exerted between S and p.
Charge q is 1 unit of distance away from the source charge S. Charge p is two times further away. The force exerted between S and q is _____ the force exerted between S and p
a. 1/2
b. 2 times
c. 1/4
d. 4 times
Answer:
4 times
Step-by-step explanation:
Given the following :
Distance between q and S (r) = 1 unit
Distance between P and S (r) = 2 × 1 unit = 2
According to coliumbs law:
F = Ke(q1q2) /r^2
Where F = electrostatic force, Ke = coloumbs constant
q1,q2 = charges, r = distance between two charges
For q and S :
Fsq = Ke(q1q2) / 1^2
Fsq = Ke(q1q2) - - - - - equation 1
For P and S :
Fsp = Ke(q1q2) / 2^2
Fsp = Ke(q1q2) / 4 - - - - - equation 2
Dibiding equation 1 by equation 2
Fsq/Fsp = Ke(q1q2) / Ke(q1q2)/4
Fsq / Fsp = Ke(q1q2) × 4 / Ke(q1q2)
Fsq / Fsp = 4 / 1
Using cross multiplication
Therefore, Fsq = 4 × Fsp
Find the area and perimeter of rectangle x=4.2cm. Width is x+5.8. The length is x.
Answer:
Area: 42 cm²
Perimeter: 28.4 cm
Step-by-step explanation:
Simply plug in 4.2 cm for x into x + 5.8 to find the width. You width should be 10.
Area: Multiply 10 by 4.2 and you should get 42
Perimeter: Add up all the sides together (4.2 x 2 + 10 x 2) and you should get 28.4
Answer:
The area of a rectangle is length times width.
First recall the answer gives you x=4.2 for the eqaution x+5.8 and for the length.
Input that into the rectangle´s area formula.
(4.2)(4.2+5.8)
(4.2)(10)
=42 units^2.
Now to find the perimeter you need to add all the sides. We have two lengths and two widths.
4.2+4.2+10+10
= 28.4
Step-by-step explanation:
If you want more explanations then Khan academy is a great source.
Hi. Can somebody help me with this problem
Answer:
draw a table and calculate the x axis and find the x intercept
Step-by-step explanation:
Answer:
The correct answer is ..
(-1,-2)
Step-by-step explanation:
First, you reflect over the x-axis and get (1,-2) then reflect over the y- axis and the point will be on (-1,-2)
Hope this helps!
- Quinn <3
What value of x is in the solution set of 8x - 6 > 12 + 2x?
-1
e Of
3
5
Answer:
x > 3
Step-by-step explanation:
Step 1: Isolate x
6x -6 > 12
6x > 18
Step 2: Divide
x > 3
What is the nth term of the following sequence……… 8, 3, -2, -7………..explain clearly aswell
8, 3, -2, -7
basically
you have to figure how to get from one term to the other. so in this case, to get from 8 to 3, you have to minus 5. and same again to get from 3 to -2, you again have to -5.
so the first past of the answer is -5n.
then after that, you have to figure out how to get from -5, to the first term of your sequence. so you have to add 13, in this case.
your answer would then be
-5n + 13Answer:
-5x + 13
Step-by-step explanation:
to find the nth term, you must find the difference between each consecutive given terms.
So,
8 and 3 = -5
3 and -2 = -5
-2 and -7 = -5
This is the m in the equation mn+c
c is the value you must add to -5n when n is 1
Hope this helps
Help a chick out only if u know what u doing
Answer:
for 12:00 1 for 1:00 2
Step-by-step explanation:
this is a pattern where each number multiplies itself by 2 making 12:00 and 1:00 pm 1 and 2
edit: is it right? if it is, may I have brainliest?
The following table shows the salary of 7 people in an office last year. Name Income Andy £9500 Bevan £25000 Cheryl £11250 Deva £72000 Elliott £12750 Frankie £29500 Grace £11000 a) Work out the mean income to 2 DP. b) Deva was given a large bonus for 30 years service. Excluding Deva's income, what was the mean income for the remaining 6 workers to 2 DP?
Answer:
Step-by-step explanation:
a. Andy = £9500
Bevan = £25000
Cheryl = £11250
Deva = £72000
Elliott = £12750
Frankie = £29500
Grace = £11000
Total Income = £171,000
To get the mean Income, we divide the total income gotten by 6 which is the number of people. This will be:
= £171,000/7
= £24428.57
b. If Deva's income is excluded, there'll be 6 people left.
Andy = £9500
Bevan = £25000
Cheryl = £11250
Elliott = £12750
Frankie = £29500
Grace = £11000
Total income = £99000
Mean income = £99,000/6
= £16,500
What is the hire purchase of a stove purchased through 24 monthly
payments of J$2,000 and a deposit of J $950?*
9514 1404 393
Answer:
J$48,950
Step-by-step explanation:
The entire purchase price is ...
24×J$2000 +J$950 = J$48,950
When [(a2bc4)(ab3c2)]2(b2c5)3 is simplified, the exponent of b is Answer
all the numbers are roots and powers
Answer:
14
Step-by-step explanation:
We want to simplify [tex][(a^2bc^4)(ab^3c^2)]^2 (b^2c^5)^3[/tex] so as to find the exponent of b.
Let us expand all brackets:
[tex][(a^2bc^4)(ab^3c^2)]^2 (b^2c^5)^3\\\\= [a^3b^4c^6]^2 (b^{2*3}c^{5*3})\\\\= [a^6b^8c^{12}] (b^{6}c^{15})\\\\= a^6b^{8+6}c^{12 + 15}\\\\= a^6b^{14}c^{27}[/tex]
The exponent of b is 14.
(10.05 LC)
If sin(x) =½
what is cos(x) and tan(x)? Explain your steps in complete sentences. (10 points)
Answer:
Cos x = [tex]\frac{base}{hypotenuse}=\frac{\sqrt{3} }{2}[/tex]
Tan x = [tex]\frac{perpendicular}{base} = \frac{1}{\sqrt{3} }[/tex]
Step-by-step explanation:
Sin x = [tex]\frac{perpendicular}{hypotenuse} = \frac{1}{2}[/tex]
So, Perp = 1 and hyp = 2
Putting this in Pythagorean theorem to get the base
[tex]c^2 = a^2+b^2[/tex]
[tex]a^2 = c^2-b^2[/tex]
base ² = 4-1
base² = 3
Taking square root on both sides
Base = [tex]\sqrt{3}[/tex]
Now
Cos x = [tex]\frac{base}{hypotenuse}=\frac{\sqrt{3} }{2}[/tex]
Tan x = [tex]\frac{perpendicular}{base} = \frac{1}{\sqrt{3} }[/tex]
You walk 2 miles in 1 half hour at the rate how long will it take you to walk 3 miles ?
Answer:
3/4 of a hour
Step-by-step explanation:
2 miles = 0.5 hours
Divide by 2
1 mile = 0.25 hours
Multiply by 3
3 mile = 0.75 hours
Answer:
45 minutes or .75 of an hour or 3/4 of an hour
Step-by-step explanation:
if you walk 2 miles in a half-hour (30 minutes) , how long will it take to walk 3 miles. Well the answer is simple, we need to use proportions to solve it though. For example:
[tex]\frac{miles}{hours}[/tex] = [tex]\frac{2}{.5}[/tex]
therefore, half of .5 is .25
so for someone to complete 1 mile, it takes .25 of an hour. .25 of an hour is 15 minutes. Therefore, the correct simplified proportion is : [tex]\frac{1}{.25}[/tex]
Now we need to find out what the denominator (bottom number/time) would be when the numerator (top number of the fraction) is =3.
Since we have the simplified version as a 1, we can just multiply .25 by 3 which is .75, and .75 of an hour is 45 minutes. Therefore the answer is 45 minutes.
Let f ( x ) = 5 x and g(x)=2x^2. (Need answer in less than 2 hours!)
Answer: (b) (g o g)(5)
Step-by-step explanation:
[tex]f(x)=\dfrac{5}{x}}\qquad g(x)=2x^2\\\\\\g(f(5)):\ f(5)=\dfrac{5}{5}=1\qquad g(1)=2(1)^2=2\\\\\\g(g(5)):\ g(5)=2(5)^2=50\qquad g(50)=2(50)^2=\large\boxed{5000}\\\\\\f(f(5)):\ f(5)=\dfrac{5}{5}=1\qquad f(1)=\dfrac{5}{1}=1\\\\\\f(g(5)):\ g(5)=2(5)^2=50\qquad f(50)=\dfrac{5}{50}=\dfrac{1}{10}[/tex]
Hey u! I need help simplify this expression