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2 years ago

What are the solutions to (x + 7)2 = 81?

Mathematics

1 answer:

koban [17]2 years ago

4 0

Answer:

the solutions are c because, when we say x +7=81 that will give us 74 which is there on c

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Maurinko [17]

Answer:

616 square centimeters

Step-by-step explanation:

Area of a circle is equal to pi × r^2. In this case, they have asked that you substitute 3.14 or 22/7 for pi, so I will be using 22/7, instead.

Diameter is equal to 2r; to find the radius, simply divide 28 by two. This gives us a radius of 14.

Multiply 14 squared by 22/7:

(22/7)(14^2)

This gives us (22/7)(196); (4312/7); 616.

Therefore, the area of the circle is approximately 616 square centimeters.

8 0

2 years ago

Find the missing term (x^12)^5 x (x^-2)^9 x what =(x^40)^5

Annette [7]

Answer:

$x^{158}$

Step-by-step explanation:

We are given,

$(x^{12} )^{5} \times (x^{-2} )^{9} \times y = (x^{40} )^{5}$ .

It is required to find the value of y.

Now, on simplifying above equation, we get,

$x^{60} \times x^{-18} \times y = x^{200}$

i.e. $x^{42} \times y = x^{200}$

i.e. $y = x^{200} \times x^{-42}$

i.e. $y = x^{158}$

Hence, the missing term is $x^{158}$ .

3 0

2 years ago

Read 2 more answers

Henry had $24.12. His friend Greg had one-

Daniel [21]

Answer: $42.21

Step-by-step explanation:

Henry; $24.12

Gregg; $24.12 / 2= $12.06

Kasey; $ 24.12 / 4= $6.03

$24.12 + $12.06 + $6.03

6 0

2 years ago

Sam painted 3 pictures.ellie painted twice as many pictures as Sam how many pictures did they paint altogether

zepelin [54]

Sam painted 3
ellie painted 2x3, so she painted 6
6+3=9
together they painted 9 pictures

3 0

2 years ago

Read 2 more answers

Pls po pahelpp ..... Kahit po paturo lng pra po matapos ko po

evablogger [386]

Answer:

ngee hirap Naman niyan sayang

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2 years ago