What is the volume of the square pyramid with base edges 10 in. and height 9 in.?

Answers

Answer 1

Answer: The answer is 300.

Hope this helps!

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This is all about matrices, I don't really get them. Any help is great.
Describe how a statistical question yields an answer with variability. Give a example.
What is 52/7 written as a mixed number?
Ellie is going to a carnival that has games and rides. Each game costs $2.50 and each ride costs $3.50. How much would Ellie have to pay if she wanted to play 5 games and go on 7 rides? How much would Ellie have to pay if she wanted to play xx games and go on yy rides?5 games and 7 rides:
Five times a number is 40. What is the number? equation: n =

Solve the inequality. –8 ≤ 2x – 4 < 4A. –2 ≤ x < 0

B. –6 ≤ x < –2

C. –2 ≤ x < 4

D. 0 ≤ x < 6

Answers

First;
-8≤2x-4
-4≤2x
-2≤x

Then;
2x-4<4
2x<8
x<4

-2≤x<4
C is the correct answer.

The product of two rational numbers is

rational
irrational

Answers

Answer:

Rational.

Step-by-step explanation:

The product of two rational numbers is always rational. This means that if you multiply two numbers that can be made into a fraction, their product can also become a fraction.

What is the greatest number of acute angles that a triangle can contain?

Answers

Answer:

The greatest number of acute angle a triangle can contain are:

Step-by-step explanation:

We know that a acute angle is a angle whose measure is less than 90°.

Now we know that the sum of all the angles of a triangle is 180°.

Now we have to find such 3 angles which are less than 90° and add up to 180°.

Let we consider a equilateral triangle.

In a equilateral triangle each angle measures 60°<90°.

and also:

60+60+60=180°.

Hence, the greatest number of acute angles a triangle can contain are:

3 because you can have a 60 60 60 triangle

True or False?-If two rectangles have equal areas, then they are congruent.
-If two squares have equal perimeters, then they have equal areas.

Answers

#1

That is false..one could have side lengths of 9 and 1, and the other could have side lengths of 3. Both the areas would be 9, but the figures would not be congruent.

#2

That is true, they must both have the same side length to have the same perimeter, therefore they will also have the same area.

Answer the question in the picture

Answers

This answer depends on how well you know your graph. There are four quadrants. When the x and y coordinates are both negative then we know that he is in quadrant III. The robot makes a right 90° turn so he's now heading into quadrant IV. Quadrant IV has a positive x and negative y.

So, a straight path from (-10, -5) would be to (10, -5). Hope this helped!

There are 2,100 bacteria in a circular petri dish. The dish has a radius of 40 millimeters. What is the approximate population density? (Use 3.14 for π)

Answers

A petri dish is simply a circle; thus, we use the formula of the area of the circle which is πr^2.
Given r = 40 mm
A = π(40)^2 = 5026.55 sq. mm

Population density = bacteria count / area
PD = 2,100 / 5026.55
PD = 0.417782 bacteria / mm sq.

Therefore, the answer is approximately 0.418 bacteria per square millimeter.

Determine the area of the circular petri dish through the equation, A = πr^2. Substituting the radius to the equation and solving for area gives, 5024 mm^2. The population density is obtained by dividing the population with the calculated area. Thus, the population density is approximately 0.418 bacteria per mm^2.

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Help asap. question screenshot attached

Find the midpoint, M, of AB A = (1,0) B = (5,2)