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3 years ago

11+4 (x+7) 2nd power when x=2

2 answers:

monitta3 years ago

6 0

11+4 (x+7)^2
Substitue 2 for x
11+4 (2+7)^2
Multiply the numbers inside of the parenthesis by the exponent
11+4 (4+49)
Add 4 to 59
11+4 (54)
Add 4 to 11
15(54)
Multiply
Final Answer: 810

Svetllana [295]3 years ago

5 0

First you follow PEMDAS, doing the parentheses first. Inside the parenthesis, there is 9. 9^2 is 81. Then you multiply 15 by 81, and you get 1215. Final answer 1215

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Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

irina1246 [14]

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2 years ago

Can someone help with these 2 problems?

AysviL [449]

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3 years ago

In the diagram, the radius of the outer circle is

JulijaS [17]

the value of x is 8 cm.

Step-by-step explanation:

Correct Question : In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 220π cm2. What is the value of x? Enter your answer in the box.

We have ,

the area of a circle = πr²

the outer circle area = $\pi(2x)^2 =4\pi x^2$

the inside circle area = $\pi (6)^2= 36\pi$

According to Question,

the outer circle area - the inside circle area = he shaded region

⇒ $\pi (4x^2)-36\pi =220\pi$

⇒ $x^2-9 =55$

⇒ $x^2=64$

⇒ $x =\sqrt{64}=8$

Therefore , the value of x is 8 cm.

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2 years ago

I need help asap!!! pleaseee

givi [52]

Answer: 625ft sq.

Explanation
Answer using A=bh (area=base x height)
Plug in information:
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2 years ago

THE amusement park won't allow kids to ride roller-coasters until they are a minimum of 48 inches tall. Michael is now 42 inches

saveliy_v [14]

Answer: It will one year (or 12 months) before Michael is able to ride the roller coaster.

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2 years ago

Read 2 more answers