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KATRIN_1 [288]
3 years ago
13

Alan drew several three-dimensional figures. Which of the following figures has exactly 5 faces and 5 vertices?

Mathematics
1 answer:
Marat540 [252]3 years ago
5 0

Answer:

Rectangular Pyramid

Step-by-step explanation:

we know that

A <u><em>rectangular pyramid</em></u> is a three-dimensional figure that has a rectangular base and four lateral triangular faces

so

The total number of faces is 5 (one rectangular face plus four triangular faces)

The total number of vertices is 5 (four at the base and one at the apex)

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You have towels of 3 sizes. The length of one of them is equal to 3/4m, which makes up 3/5 of the length of the second. The leng
Charra [1.4K]

\frac{3}{2} part of length of the third towel is the length of the second towel

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

Given that You have towels of 3 sizes

Length of the first towel = \frac{3}{4} meter

The length of one of them is equal to 3/4m, which makes up 3/5 of the length of the second.

Length of the first towel = \frac{3}{5} \times \text{ length of second towel }

\frac{3}{4} = \frac{3}{5} \times \text{ length of second towel }\\\\\text{length of second towel }= \frac{5}{4}

The length of the third towel makes up 5/12 of the lengths of the first 2.

\text{ length of the third towel }= \frac{5}{12} \times (\text{ length of first towel + length of second towel)}

\text{ length of the third towel }= \frac{5}{12} \times (\frac{3}{4} + \frac{5}{4}) = \frac{5}{12} \times 2 = \frac{5}{6}

To find: What part of the length of the third towel is the length of the second towel ?

Ratio of second to third towel length = \frac{\frac{5}{4}}{\frac{5}{6}}=\frac{5}{4} \times \frac{6}{5}=\frac{3}{2}

Thus 3/2 part of length of the third towel is the length of the second towel

5 0
3 years ago
2.In quadratic equation ax2 + bx + c = 0, if discriminant is D= b2 - 4ac, then roots of the quadratic equation are
tino4ka555 [31]

Answer:

(2) Real and equal (i.e., repeated roots), if D = 0.

Step-by-step explanation:

.In a quadratic equation ax2 + bx + c = 0, if discriminant is D= b2 - 4ac, then roots of the quadratic equation are

Real and equal (i.e., repeated roots), if D = 0.

If the D > b² - 4ac then it's real and distinct.

3 0
3 years ago
17/9 15 divided 6 divided 30 divided and 3^3 from least to greatest
qaws [65]

I assume you mean: Order the following from least to greatest:

17/9, 15 divided by 6, 30, and 3^3

17/9 = 1 8/9

15/6 = 2 1/2

3^3 = 9

So it would be: 17/9, 15 divided by 6, 3^3, and 30

Make necessary adjustments if it was actually 6/30; the wording was confusing.


8 0
3 years ago
Help me please! I need to find the answer for the angle indicated in bold!
bagirrra123 [75]

(x+ 63) + (x + 133) = 180 \\ 2x + 196 = 180 \\ 2x =  - 16 \\ x =  - 8 \\ so... \\ x + 133 = ( - 8 ) + 133  \\  = 125
8 0
3 years ago
Which way shows how to make a ten to solve 13 - 7?
Paha777 [63]
13=10+3 so
13-7=3+10-7=3+3=6
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3 years ago
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