2 years ago

The expression -2(x-4) is the same as?

Mathematics

1 answer:

Tomtit [17]2 years ago

5 0

Answer:

-2x + 8

Step-by-step explanation:

I applied the distribution technique to the original question.

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In the diagram, the radius of the outer circle is

JulijaS [17]

the value of x is 8 cm.

<u>Step-by-step explanation:</u>

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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3 years ago

My friends last question pls answer ASAP

Dafna11 [192]

Answer:

Step-by-step explanation:

just count the blocks!

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3 years ago

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Carmen's city took a telephone poll about a plan to build a new hotel downtown. 6,000 people took the poll. 25% of them were in

Nimfa-mama [501]

People were in favor of the new hotel=25% of 6000 people.
25% of 6000 people=(25/100)*6000=(25*6000)/100=1500 pople.

1500 people were in favor of the new hotel.

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3 years ago

Determine which consecutive integers do not have a real zero of f(x)=x^3+9x^2+8x-5 between them.

Bess [88]

I think the answer is -2,-1

7 0

3 years ago

Triangle PQR has vertices P(–2, 6), Q(–8, 4), and R(1, –2). It is translated according to the rule (x, y) → (x – 2, y – 16).

Luden [163]

The y-value is the one on the right. Therefore, the y-value of P is 6. Following the rule, the y-value of P' is 6-16= -10.

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3 years ago