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3 years ago

Could you guys help me ? I'll give brainliest

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

4 0

When you raise a number to a negative exponent, change the exponent to a positive and make the complete number a fraction with 1 as the numerator.

5 ^-2 = 1/5^2

The answer is C.

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Help me ill mark u brainliest xd

AlexFokin [52]

20 x 42= 840
So the area would be 840 mm^2.

6 0

3 years ago

Read 2 more answers

Kylie is in the business of manufacturing phones. She must pay a daily fixed cost to rent the building and equipment, and also p

Paladinen [302]

Answer:

Step-by-step explanation:

In this problem, we are to model the equation for the total cost of producing a phone

Given that the fixed cost is $600

Also, the total cost of producing 4 phones in a day is $1600

hence the cost of producing 1 phone would be 1600/4= $400

the equation for producing p phones would be

C= 400P+ 600

This equation is the same as the equation of a straight line Y=mx+c

with C=y

400= m= gradient

P=x, the dependent variable

600= c the constant term.

6 0

3 years ago

Compute the total cost per year of the following pair of expenses. Then complete the sentence: On an annual basis, the first s

Mamont248 [21]

Answer: The first set of expenses is 69.47% of second set of expenses.

Step-by-step explanation:

Since we have given that

Amount spend by Maria on lottery tickets every week = $21

Amount spend by Maria on food every month = $131

so, Amount spend by Maria on lottery in a year would be

$21\times 52=\$1092$

Amount spend by Maria on food in a year would be

$131\times 12=\$1572$

So, the first set of expenses is what % of the second set of expenses.

So, the required percentage would be

$\dfrac{1092}{1572}\times 100\\\\=69.47\%$

Hence, the first set of expenses is 69.47% of second set of expenses.

6 0

4 years ago

If h(x) = 6 – x, what is the value of (h circle h) (10)?<br> –4<br> –2<br> 10<br> 16

Ganezh [65]

Answer:

Step-by-step explanation:

Here, we want to find the value of ;

h circle h(10)

This mean we are to put h in h, the find the function of 10

we have this as;

6-(6-x)

= 6-6 + x = x

Now, replace the x by 10; so we have h circle h(10)

5 0

3 years ago

Read 2 more answers

Mrs Stewart's draw a rectangle with an area of 32 square inches the width of a rectangle is 4 in what is the length of mrs. Smit

vova2212 [387]

Answer:

8 inches

Step-by-step explanation:

Use formula

$\text{Area of the rectangle}=\text{Width}\times \text{Length}$

for the area of the rectangle.

Given

$\text{Area of the rectangle}=32\ in^2\\ \\\text{Width}=4\ in,$

then

$32\ in^2 =4\ in\times \text{Length}\\ \\\text{Length}=\dfrac{32\ in^2}{4\ in}=8\ in$

4 0

3 years ago