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3 years ago

Find the volume of a square pyramid with base edges of 30 cm and a slant height of 39 cm

Mathematics

1 answer:

belka [17]3 years ago

5 0

Answer:

390cm

Step-by-step explanation:

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zepelin [54]

Answer:

The required equation is: $\mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}$

Step-by-step explanation:

We need to find equation from the table given

x f(x)

3 -5

7 -2

11 1

15 4

We can write equation in the form of $y=mx+b$

where m is slope and b is y-intercept.

Finding Slope

We can used the slope formula to find slope: $Slope=\frac{y_2-y_1}{x_2-x_1}$

From the table we have: $x_1=3, y_1=-5, x_2=7, y_2=-2$

Putting values and finding slope

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-2-(-5)}{7-3} \\Slope=\frac{-2+5}{7-3}\\Slope=\frac{3}{4}$

So, we get slope $m=\frac{3}{4}$

Now, finding y-intercept

Using the slope $m=\frac{3}{4}$ and point (3,-5) we can find y-intercept

$y=mx+b\\-5=\frac{3}{4}(3)+b\\-5=\frac{9}{4}+b\\b=-5-\frac{9}{4}\\b=\frac{-5*4-9}{4}\\b=\frac{-20-9}{4}\\b=\frac{-29}{4}$

The y-intercept is $b=\frac{-29}{4}$

So, the equation having slope $m=\frac{3}{4}$ and y-intercept $b=\frac{-29}{4}$ will be:

$y=mx+b\\y=\frac{3}{4}x-\frac{29}{4}$

The required equation is: $\mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}$

6 0

3 years ago

Type the expression that results from the following series of steps:

d1i1m1o1n [39]

The expression would be (X-6)/7

5 0

3 years ago

What is the slope and rate of change brainliest 40 points

Maru [420]

Answer:

slope: 3 for N and 1/2 for O

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Does a set of rational numbers include the set of integers

NeX [460]

Yes, a set of rational numbers include the set of integers

3 0

4 years ago

32 point question<br> follow the instructions on the image

Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

First one is 19. The work is 7+7+5=19

Second one is 22. The work is 12+5+5=22

Third one is 15. The work is 3+3+3+3+3=15

4 0

3 years ago