All categories

3 years ago

Find the volume of the pyramid.

Mathematics

1 answer:

zlopas [31]3 years ago

8 0

Answer:

Step-by-step explanation:

Formula=area of base x height / 3

A= ( 3 x 1 ) x 7 / 3

A= 3 x 7 / 3

A= 21 / 3

A= 7

You might be interested in

Ava opens an account with $400. She deposits $200/month for 20 years. The interest rate is 2.15%. How much interest will she hav

artcher [175]

Answer:

d. None of the above

Step-by-step explanation:

We assume the sequence of deposits is ...

month 0: $400

month 1: $200

month 2: $200

...

month 240: $200 . . . . accumulated interest is determined at this point

That is, no interest is earned on the last deposit.

_____

The value of the initial $400 deposit after 20 years at 2.15% interest compounded monthly is ...

$400×(1 +.0215/12)^(12×20) = $400×1.536666 ≈ $614.67

The value of the $200 annuity at the same interest rate is ...

$200((1 +.0215/12)^(12×20) -1)/(.0215/12) = $200×299.534612 ≈ $59,906.92

So, the total account value is ...

$614.67 +59,906.92 = $60521.59

The total amount deposited was ...

$400 +$200×240 = $48,400

The interest earned is the difference between the account value and the total of deposits:

$60,521.59 -48,400 = $12,121.59 . . . . interest earned

This value does not match any numerical answer choice, so we conclude the appropriate answer is ...

None of the above

3 0

3 years ago

david, another student in the classdecides to sell hot chocolate for $0.75 per cup. He began to record his earnings below. the t

Fed [463]

Answer: $787

Step-by-step explanation:

4 0

3 years ago

The times for running a 5K for a local charity event are Normally distributed, with a mean time of 28 minutes and

liq [111]

Answer:19.12

I’m not sure if this is the answer but I need the points so here.

7 0

2 years ago

Read 2 more answers

PLEASE HELP

EastWind [94]

1 at runner can run 6mph you n 3 minutes

2nd runner can 6mph in 2*3=6

1st runner can run 9 mph in 9*3=27

2nd runner can run 9mph in 9*6=54

5 0

3 years ago

5. What is the y-intercept of the line of best fit?

Verizon [17]

6. The y-intercept is 8

7. the slope is -1/2

8. Equation of line is: $y = -\frac{1}{2}x+8$

Step-by-step explanation:

Let us define y-intercept first

The y-intercept of the line is where the line intersects the y-axis.

5. What is the y-intercept of the line of best fit?

The given line on graph intersects the y-axis on 8 so the y intercept of the line of best fit is 8

6. What is the slope of the line of best fit for this scatter plot?

The slope can be calculated by locating two points on line.

In the given line, we can easily observe two points

(2,7) and (4,6)

The slope is calculated by the formula

$m=\frac{y_2-y_1}{x_2-x_1}$

Here (x1, y1) are the coordinates of first point on line and (x2,y2) are the coordinated of second point on line

So, putting the values

$m=\frac{6-7}{4-2}\\=\frac{-1}{2}\\=-\frac{1}{2}$

7. What is the equation of the line of best fit?

The slope intercept form of any line is given by:

$y=mx+b$

where m is slope and b is y-intercept of the line

As we already know

m = -1/2 and y-intercept is 8

Putting the values in the equation

$y = -\frac{1}{2}x+8$

Keywords: Equation of line, Slope

Learn more about equation of line at:

#LearnwithBrainly

7 0

3 years ago