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melomori [17]
3 years ago
14

A landscaper charges you to $102 to plant 8 bushes in front of your office building. If you decide to put 12 more of the same bu

shes around the building, how much should the landscaper charge you to plant those bushes?
A. $130.50
B. $153.00
C. $170.00
D. $255.00
Mathematics
2 answers:
alukav5142 [94]3 years ago
6 0

Answer:

D. $255

Step-by-step explanation:

We have been given that a landscaper charges you to $102 to plant 8 bushes in front of your office building.

First of all, we will find cost of planting one bush by dividing 102 by 8 as:

\text{Cost to plant 1 bush}=\frac{\$102}{8}

\text{Cost to plant 1 bush}=\$12.75

Since you want to plant 12 more bushes, so number of total bushes would be 20 (8+12).

To find cost of planting 20 bushes, we will multiply $12.75 by 20.

\text{Cost of planting 20 bushes}=\$12.75\times 20

\text{Cost of planting 20 bushes}=\$255

Therefore, the landscaper will charge you $255 to plant all bushes and option D is the correct choice.

horrorfan [7]3 years ago
5 0
The answer is 153.00.
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A scale model of a tower is 24 inches tall and 18 inches wide. If the height of the actual tower is 60 feet, what is its width?
meriva

Answer:

The actual tower would be 45 ft wide.

Step-by-step explanation:

In order to find the width, we need to determine the scale factor. We can do that by dividing the actual height by the model height.

60ft:24in = 15ft:6in = 2.5ft:1in

Now we use that scale factor to determine the width. Multiply the scale factor by the width of the model.

18 inches * 2.5ft/in = 45 feet

6 0
3 years ago
What are 3 factor pairs of 52
nikdorinn [45]
(1,52)(-1,-52) (2,26)(-2,-26)(4,13)(-4,-13)(1/2,104), etc etc etc
3 0
3 years ago
If α and β are the zeros of the quadratic polynomial f(x) = 3x2–4x + 5, find a polynomialwhose zeros are 2α + 3β and 3α + 2β.
Lelechka [254]

Answer:

\boxed{\sf \ \ \ 3x^2-20x+37\ \ \ }

Step-by-step explanation:

Hello,

a and b are the zeros, we can say that

f(x)=3(x^2-\dfrac{4}{3}x+\dfrac{5}{3}) = 3(x-a)(x-b)=3(x-(a+b)x+ab)

So we can say that

a+b=\dfrac{4}{3}\\ab=\dfrac{5}{3}

Now, we are looking for a polynomial where zeros are 2a+3b and 3a+2b

for instance we can write

(x-2a-3b)(x-3a-2b)=x^2-(2a+3b+3a+2b)x+(2a+3b)(3a+2b)\\= x^2-5(a+b)x+6a^2+6b^2+9ab+4ab

and we can notice that

a^2+b^2=(a+b)^2-2ab so

(x-2a-3b)(x-3a-2b)=x^2-5(a+b)x+6[(a+b)2-2ab]+13ab\\= x^2-5(a+b)x+6(a+b)^2+ab

it comes

x^2-5*\dfrac{4}{3}x+6(\dfrac{4}{3})^2+\dfrac{5}{3}

multiply by 3

3x^2-20x+2*16+5=3x^2-20x+37

4 0
3 years ago
You are testing the claim that the mean GPA of night students is different from the mea GPA of day students. You sample 20 night
svetlana [45]

Answer:

As the calculated value of z does not lie in the critical region the null hypothesis is accepted that the GPA mean of the night students is the same as the GPA mean of the day students.

Step-by-step explanation:

Here n= 20

Sample mean GPA = x`= 2.84

Standard mean GPA = u= 2.55

Standard deviation = s=  0.45.

Level of Significance.= ∝ = 0.01

The hypothesis are formulated as

H0: u1=u2   i.e the GPA of night students is same as the mean GPA of day students

against the claim

Ha: u1≠u2

i.e the GPA of night students is different from the mea GPA of day students

For two tailed test  the critical value is  z ≥ z∝/2= ± 2.58

The test statistic

Z= x`-u/s/√n

z= 2.84-2.55/0.45/√20

z= 0.1441

As the calculated value of z does not lie in the critical region the null hypothesis is accepted that the GPA mean of the night students is the same as the GPA mean of the day students.

8 0
3 years ago
Can anyone say how is Brainly app I'm new here​
mars1129 [50]

Answer:

u can ask question and answer question when u answer q u get point and leve up

3 0
3 years ago
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