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creativ13 [48]
3 years ago
6

During tax-free weekend, Amy bought pencils for $1.25 each. After using a coupon which saved her $3, she spent a total of $2. Ho

w many pencils, x, did Amy purchase?
Mathematics
1 answer:
galina1969 [7]3 years ago
8 0

Answer:

4

Step-by-step explanation:

1.25* 4=5

5-3=2

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The diagram above shows a rectangle inscribed in a circle AB=10 and AC =12 caculate the total surface area of the shaded part
erastova [34]

Answer:

71.63 \: \: \mathrm{cm^2 }

Step-by-step explanation:

Once we know the diameter of the circle, we can figure out the problem.

The diameter of the circle = The diagonal of the rectangle inscribed in the circle

To find the diagonal of the rectangle, we can use a formula.

d=\sqrt{w^2 + l^2}

The width is 10 cm and the length is 12 cm.

d=\sqrt{10^2 + 12^2}

d \approx 15.62

The diagonal of the rectangle inscribed in the circle is 15.62 cm.

The diameter of the circle is 15.62 cm.

Find the area of the whole circle.

A=\pi r^2

The r is the radius of the circle, to find radius from diameter we can divide the value by 2.

r = \frac{d}{2}

r=\frac{15.62}{2}

r=7.81

Let’s find the area now.

A=\pi (7.81)^2

A \approx 191.625

Find the area of rectangle.

A=lw

Length × Width.

A = 12 \times 10

A=120

Subtract the area of the whole circle with the area of rectangle to find area of shaded part.

191.625-120

71.625 \approx 71.63

5 0
2 years ago
Find the value of x that makes this equation true, just write a number for your answer. Use / for writing fractions
Tcecarenko [31]

Answer:

1/15

Step-by-step explanation:

The first thing to do is to change both denominators so that they're the same. In this case, that would be 15.

Then, whatever you do to the denominator, you must also do to the numerator.

\frac{9}{15} + x = \frac{10}{15}

X = 1/15

6 0
3 years ago
Read 2 more answers
8. What are the advantages of switching a quadratic function from standard form into vertex form?
Airida [17]

Answer:

vertex form automatically gives you your vertex and your y intercept so all you need to do is graph. Hope this helps

Step-by-step explanation:

3 0
3 years ago
Readin
docker41 [41]

Answer:

10 11 12 13 14 15 16 17 18 19

10 10 11 12 13 14 15 16 17 18 19  

 

Step-by-step explanation:

3 0
2 years ago
9/11 = ?/22<br> a. 12<br> b. 9<br> c. 4<br> d. 18
svlad2 [7]
18/22 = 2*9/2*11 = 9/11

Therefore, your answer is 18
7 0
3 years ago
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