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goldfiish [28.3K]
3 years ago
13

Someone pls answer this question

Mathematics
1 answer:
Alex3 years ago
7 0

Answer:

9^2-x^2 and x(9-x)+9(9-x)

Step-by-step explanation:

The area of the larger square is 9*9=9^2. The area of the smaller square inside of it is x*x=x^2. The area of the light shaded gray is therefore 9^2-x^2, which is also equivalent to x(9-x)+9(9-x). Hope this helps!

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I don't get this can anyone help me
kotykmax [81]
Cannot see the picture cleary
3 0
3 years ago
A 2.5​ ft wide circular track for a camera dolly is set up for a movie scene. The two rails of the track form concentric circles
Deffense [45]

Answer:

15.71 ft

Step-by-step explanation:

Given that:

width of the circular track = 2.5ft

Suppose the radius of the inner circle is 57 ft since it is not given

Then the radius of the outer circle = (2.5 + 57) ft = 59.5 ft

The circumference of a circle = 2πr

For inner circle now, the circumference = 2 × π × 57 ft

For inner circle now, the circumference = 358.14 ft

For the outer circle, the circumference = 2 × π × 59.5 ft

For the outer circle, the circumference = 373.85 ft

The difference between the circumference of the outer wheel from the inner wheel shows how farther does a wheel on the outer rail travel than a wheel on the inner rail of the track in one​ turn

∴

= ( 373.85 - 358.14 ) ft

= 15.71 ft

6 0
3 years ago
Dimitri is helping to plan the school talent show. Each performer for the talent show has 7 minutes for his or her performance,
Kaylis [27]

15 performances can be accommodated

<em><u>Solution:</u></em>

Given that,

Each performer for the talent show has 7 minutes for his or her performance

The introduction for the talent show is 25 minutes long

The entire show including the introduction, will last 130 minutes

Thus the remaining time for performances is:

Performance time = 130 minutes - 25 minutes

Performance time = 105 minutes

To find, the number of performances, divide the 105 by 7 minutes

Number\ of\ performances = \frac{105}{7} = 15

Thus 15 performances can be accommodated

5 0
4 years ago
Erica and tim each use their cell phones to send texts and make phone calls. Erica sent 18 texts and made 6 calls today. Tim sen
Karolina [17]

Answer:

Erica has 6 more text then Tim and 2 more calls then Tim.

Step-by-step explanation:

What i did was 18-12 because those are both text and that was 6 so Erica has 6 more

Then i did 6-4 =2 and those where both of the calls so Erica has 2 more calls then Tim.

3 0
3 years ago
Which is bigger 1.75 yards or 42 inches
igor_vitrenko [27]
The answer is 1.75 yards, which equals to 63 inches compared to 42.
7 0
4 years ago
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