a poster measures 38 cm across. if a photocopy machine is used to make a copy that is 3/5 of the original size,what is the width of the copy ?

Answers

Answer 1

Answer: 38 divided by 5 is 7.6. So you have to multiply 7.6 by 3. The width is 22.8. The question is a tad bit confusing though.
Hope this helps!

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A right triangle is shown below.Which of the following equals sin A?
A
tan A
B. Ocos A
C.
cos B
D
tan B

Answers

I really think it’s C

Final answer:

In a right triangle, sin A equals cos B because A and B are complementary angles. Sin A cannot equal tan A, tan B, or cos A.

Explanation:

In a right triangle, the sine of an angle is defined as the length of the opposite side over the length of the hypotenuse. Therefore, sin A cannot be equivalent to tan A or tan B because tangent of an angle is the ratio of the opposite side to the adjacent side. The sine of angle A is not related to cos A because cosine of an angle is the length of the adjacent side over the length of the hypotenuse.

However, it's relevant to note that in a right triangle, the sine of an angle is equal to the cosine of its complementary angle. Since A and B are complementary angles in a right triangle (sum up to 90 degrees), it means that sin A equals cos B. So, the correct answer is C: cos B.

Learn more about Trigonometry here:

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Larry and Willa are each reading the same book. Larry has read 2/3 of the book. Willa said that she has read 4/6 of the book, so she read more. Is Willa correct? Explain.

Answers

Willa isn't correct because 2/3 is the same amount as 4/6. You now this because you multiply 2 to both den and num (bottom +Top of a fraction).

A car is traveling at 50 mph. How long does it take the car to travel 250 miles?

Answers

Divide total distance traveled by speed to find the total time.

250 miles / 50 miles per hour = 5 hours

A car is traveling at 50 mph. How long does it take the car to travel 250 miles?
It will take 5 hours to travel 250 miles.
250 divided by 50 = 5

Subtract: 6lb 4oz
- 2lb 10oz

Answers

6 lb = 96 oz
2 lb = 32 oz

96 + 4 = 100
32 + 10 = 42

100 - 42 = 58
58 oz

58 / 16 = 3 10/16
3 lb 10 oz

Answer: 3 lb 10 oz

(6 pound 4 oz) - (2 pounds 10 oz) =3.62500 pounds

A picture frame consists of two rectangular strips of wood, each having a width of 1 inch on all sides. If the area of the inner light gray strip is 100 in^2, then compute the area of the outer dark gray strip in square inches.

Answers

Step-by-step explanation:

To compute the area of the outer dark gray strip, you'll need to know the dimensions of the inner light gray strip. Since the inner strip has a width of 1 inch on all sides, you can subtract 2 inches from both the length and width of the outer frame to find the dimensions of the inner strip.

Let's denote the length of the inner strip as L inches and the width as W inches. Then, the dimensions of the outer frame would be (L + 2) inches for the length and (W + 2) inches for the width.

Since the area of the inner light gray strip is 100 square inches, you can set up an equation:

L * W = 100

Now, you can find the area of the outer dark gray strip:

Outer strip area = (L + 2) * (W + 2) - L * W

Substitute the value of L * W from the equation above:

Outer strip area = (L + 2) * (W + 2) - 100

You'll need the specific values of L and W to calculate the exact area of the outer dark gray strip.

Answer:

121

Step-by-step explanation:

the square root of 100 is 10

width is 1 inch