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4 years ago

Including the bottom, how many faces are there.

Mathematics

1 answer:

Artist 52 [7]4 years ago

8 0

The answer is 5 I’m sure of it 100%

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What is the length of DE (2 points) What is the length of AE (2 points)

Rudiy27

Answer:

DE=21 AE=57

Step-by-step explanation:

the ratio between sides is the same for DE so 17/34=DE/42

solving you get 21. For AE the radio between is 51/34 times 38= 1.5*38=57

3 0

3 years ago

Jenny invests $650 at a 5% interest rate that is compounded annually for 7 years. She does not deposit or withdraw any money. Ho

Viktor [21]

Answer:

$877.50

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year.

Solving our equation:

A = 650(1 + (0.05 × 7)) = 877.5

A = $877.50

7 0

3 years ago

What is the volume of the composite figure? 12in 4 in 3 in. 7 in.

Minchanka [31]

Answer:

Step-by-step explanation:

$V_p = b \cdot h \cdot w$ , where b, h, w are base, height and width respectively.

$V_{sp} = \frac{1}{3} \cdot {A_b} \cdot h$ , where h is the height, and A_b is the area of the base.

First let's calculate the volume of the paralelipiped by the first formula.

$V_p = 7 \cdot 4 \cdot 3 = 84 in^2$

Then let's find out the height of the pyramid, which is 12 - 4 = 8 in.(See drawing)

Then the area of the base of the square pyramid is simply.

$A_r = 3 \cdot 7 = 21 in^2$

Now we can find the volume of the pyramid.

$V_{sp} = \frac{1}{3} \cdot 21 \cdot 8 = 56 in^3$

To find the total volume, let's add both volumes.

$V_T = 84 + 56 = 140 in^3$

5 0

3 years ago

a bakery used 3 cups of flour to make a full size cake if they wanted to make a cake that was 1/2 the size how many cups of flou

Anastasy [175]

1 cup 4oz. 1 cup = 8oz

4 0

4 years ago

Simplify the expression so there is only one positive power for each base.

katen-ka-za [31]

Answer:

Option (A)

Step-by-step explanation:

The given expression is,

$(5^{-2}\times 4^{-4})^{-2}$

Since $x^{-1}=\frac{1}{x}$ and $\frac{1}{x^{-1}}=x$

$5^{2}=\frac{1}{5^{-2}}$

$4^{2}=\frac{1}{4^{-2}}$

Therefore, $(5^{-2}\times 4^{-4})^{-2}=\frac{1}{(5^{-2}\times 4^{-4})^{2}}$

$=\frac{1}{(5^{-2})^2\times (4^{-4})^2}$

$=\frac{1}{5^{-4}\times 4^{-8}}$

$=\frac{1}{5^{-4}}\times \frac{1}{4^{-8}}$

$=5^{4}\times 4^{8}$

Option (A) will be the answer.

8 0

3 years ago