3 years ago

What is the domain of f(x) = 5^x - 7?

Mathematics

1 answer:

oee [108]3 years ago

5 0

X belongs to all real numbers

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What’s.the perimeter of a square with an area of 49 cm2

Free_Kalibri [48]

Answer:

Step-by-step explanation:

Area of a square =

$s^2$

Perimeter =

$4\times s$

Where s = side

Solve for s using the area

$A =49\\\\49 = s^2\\\\Square\:root \:both\:sides\:of\:the\:equation\\\\\sqrt{49} = \sqrt{s^2} \\\\7 =s\\\\s =7$

Find the perimeter

$4\times s\\\\= 4 \times 7\\\\= 28$

8 0

3 years ago

Solve: 5a + 6a = -11<br> What does A equal?<br> A =

pochemuha

Answer:

a = -1

Step-by-step explanation:

Combine like terms 6a + 5a = 11a

11a = -11

Divide -11 by 11

-11/11 = -1

8 0

2 years ago

Korey is planning to open a comic book store. When the store opens, he plans to be the only employee. As the business grows, he

tekilochka [14]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The solution to 4p + 2 < 2p + 5)

Georgia [21]

After solving $4p + 2 < 2p + 5$ we get $p$

Step-by-step explanation:

We need to solve

$4p + 2 < 2p + 5$

Solving

$4p + 2 < 2p + 5$

Subtract 2 from both sides:

$4p + 2-2 < 2p + 5-2\\4p$

Subtract 2p from both sides

$4p$

Divide both sides by 2p

$\frac{2p}{2}$

So, after solving $4p + 2 < 2p + 5$ we get $p$

Keywords: Inequality

Learn more about inequality at:

#learnwithBrainly

7 0

3 years ago

There are 32 pupils in a class. 20 of them are girls. What is the ratio of boys to girls in it’s simplest form

Ray Of Light [21]

Hello!

If there are 32 people in total in the class, and 20 of them are girls, that means there are 12 boys in the class

so the ratio of boys to girls is 12:20

to get simplest form, divide by the greatest common factor. which in this case, is 4.

12 / 4 = 3

20 / 4 = 5

your final answer is: boys:girls, 3:5

I hope this helps, and have a nice day!

7 0

2 years ago