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4 years ago

6

Trevor is reading a book for a book report. Last week, he read 35 pages of his book. This week he read 2.5 times as many pages a

s he read last week. How many pages did he read this week

1 answer:

Svet_ta [14]4 years ago

3 0

Answer:85.5

Step-by-step explanation:

Use calculator

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Tom simplified an expression in three steps, as shown: x to the power of negative 2 multiplied by y to the power of 4, over y mu

ss7ja [257]

Answer:

Step 1, all the exponents are increased by 4

Step-by-step explanation:

<u>The three steps are</u>

(x⁻² × y⁴ /y × x⁴ × x⁴ × y⁻²)⁴ =
x²×y⁸/y⁴×x⁸×x⁸×y² =
x²×y⁸/y⁶×x¹⁶

<u>Correct solution should be:</u>

(x⁻² × y⁴ /y × x⁴ × x⁴ × y⁻²)⁴ = all powers inside the parenthesis should be multiplied by 4 as per power of the power (xᵃ)ᵇ = xᵃᵇ

<u>This would give next steps:</u>

x⁻⁸×y¹⁶/y⁴×x⁸×x⁸×y⁻⁸ =
x⁻⁸×y¹⁶/x¹⁶×y⁻⁴ =
y²⁰/x²⁴

<u>Answer options:</u>

Step 1, all the exponents are increased by 4

There should be multiplication of powers. (It is close option but is not fully correct as not all the exponents increased by 4, for example y became y⁴)

Step 2, the exponents of the same base are added during multiplication

It was done correctly

Step 3 wasn't performed yet, there was step 1 and 2.

So answers about step 3 are irrelevant

5 0

3 years ago

Must m in the equation y=mx+b always be a positive number?

Effectus [21]

If the slope of the number is positive (the graph goes upward from left to right), then m will be positive, but if the slope is negative (the graph goes downward from left to right), then m is negative. So, no. M does not have to be a positive number, it may also be negative.

4 0

3 years ago

Read 2 more answers

Water around 9 miles in 2 1/2 hours at a constant rate how far did Walter run in an hour

Anettt [7]

Answer:

3.6?

Step-by-step explanation:

I didn't understand stand but I just divided 9 and 2.5 and got 3.6

8 0

3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!

snow_lady [41]

Answer:

A. The area is $78.54m^2$

B. She needs to cover 1661.9 square feet of tiles for the base of the swimming pool

Step-by-step explanation:

Question A:

Let us assume that the leash is pegged to the ground using a stake. as a result, the dog can move around the stake. The path that the motion of the dog would trace is a circle, and the radius of the circle will be the length of the leash.

Since we know this, we can easily find the area of the circle using $\pi r^2$

Area of the circle = $\pi \times 5 \times 5 = 78.54m^2$

Question B

Dulce wants to cover the whole surface area of the floor of the circular swimming pool with tiles.

We already know that the swimming pool is circular, hence, the surface area of the base of the swimming pool will be the same as the area of a circle, with the same radius.

The area of the circle can be calculated using $\pi r^2$

Area of circle = $\pi \times 23 \times 23 = 1661.9ft^2$

8 0

3 years ago

Jen wants to fill six Valentine bags with candy she has 14 pounds of candy to distribute how many pounds of candy will be in eac

professor190 [17]

Six goes into 14 twice so 2 pounds

5 0

3 years ago