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3 years ago

What the answer please?

Mathematics

2 answers:

NISA [10]3 years ago

8 0

A ) 40° because an acute angle is less than a 90° angle.. so on a protractor it should be more than 0° but less than 90°.

Rus_ich [418]3 years ago

4 0

The definition of an acute angle is one where the angle measurement, obtained by looking at the measure between 2 legs or terminals in a quadrant would be one where the angle measure is less than 90 degrees, anywhere from 0 - 90 not including 90 would be an acute angle.

In this case, it would be A. 40 degrees.

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A pyramid has a square base that measures 20 inches on each side and 30 inches high. Find the volume of the pyramid.

irinina [24]

The volume of pyramid is 4000 inch³.

<h3>What is Volume?</h3>

Volume is a mathematical term that describes how much three-dimensional space an object or closed surface occupies. Volume is measured in cubic units like m³, cm³, in³, etc. Volume is sometimes referred to as capacity.

The capacity of an object is measured by its volume. For instance, a cup's capacity is stated to be 100 ml if it can hold 100 ml of water in its brim. The quantity of space occupied by a three-dimensional object can also be used to describe volume.

Given:

base = 20 inches

height = 30 inches

Now, volume of pyramid

Volume = a²h/3

Volume = 20 x 20 x 30 /3

Volume = 400 x 10

Volume = 4000 inch³

Hence, the volume of pyramid is 4000 inch³.

Learn more about volume of pyramid here:

brainly.com/question/1578538

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7 0

1 year ago

How fast are you going if you run 12 kilometers in 2 hours

vfiekz [6]

Answer:

3.73 miles per hour

Step-by-step explanation:

12 Kilometers is 7.46 miles.

7.46/2 = 3.73 Miles per hour

6 0

3 years ago

I need the answer to the problem

Leya [2.2K]

Only a guess but 69.5 7
9

3 0

3 years ago

Read 2 more answers

If f(x) = (3+x)/(x-3), what is f(a+2)

sergey [27]

Answer:

Step-by-step explanation:

To evaluate f(a + 2), substitute x = a + 2 into f(x), that is

f(a + 2) = $\frac{3+a+2}{a+2-3}$ = $\frac{5+a}{a-1}$

5 0

3 years ago

Find the sum of the first 8 terms in the geometric sequence: 1, 3, 9, 27,

Butoxors [25]

The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

Step-by-step explanation:

The given is,

sequence: 1,3,9,21,.. etc

Step:1

The given is based on multiplication of 3 to previous number,

( x - previous number, next number = 3 × $x$ )

First term : 1

Second term : 1 × 3 = 3

Third term : 3 × 3 = 9

Fourth term : 9 × 3 =27

Fifth term : 27 × 3 = 81

Sixth term : 81 × 3 = 243

Seventh term : 243 × 3 = 729

Eighth term : 729 × 3 = 2187

Step:2

Sum of first 8 terms $= 1 + 3 + 9 + 27 + 81 + 243 + 729 + 2187$

= 3280

Sum of first 8 terms = 3280

Result:

The sum of the first 8 items in the geometric sequence:1, 3, 9, 27, ...etc is 3280.

7 0

3 years ago