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3 years ago

The points where a graph crosses the x-and y- axis are called the

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

The points where a graph crosses the x-and y- axis are called the Origin.

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Drag the tiles to the correct boxes to complete the pairs.

lbvjy [14]

Answer:

(a) -22

(b) 22

(d) -2.20

Step-by-step explanation:

(a)

We need to find the average rate of elevation change in feet per second, if a submarine dives 440 feet in 20 seconds.

Change in position = -440

Change in time = 20

Rate of elevation change is the ratio of change in position and change in time.

Rate of elevation change $=\frac{-440}{20}=-22$

Therefore, the average rate of elevation change is -22 feet per second.

(b)

We need to find the number of boys if the total height of the boys is 26.4 meters and their average height is 1.2 meters.

Let n be the number of students.

$\text{Average height}=\frac{\text{Total height}}{\text{No. of students}}$

$1.2=\frac{26.4}{n}$

$n=\frac{26.4}{1.2}$

$n=22$

Therefore, the number of boys is 22.

(c)

We need to find the average distance in miles traveled in 1 hour if 660 miles can be covered in 1.5 hours.

1.5 hours = 660 miles

Divide both sides by 1.5 to find the average distance in miles traveled in 1 hour.

1 hours = $\frac{660}{1.5}$ miles

1 hours = 440 miles

Therefore, the average distance in miles traveled in 1 hour is 440.

(d)

We need to find the average temperature change in degrees Fahrenheit per hour if the temperature fell 22 degrees Fahrenheit in 10 hours.

Average temperature change is the ratio of change in temperature and change in time.

$\text{Average temperature}=\frac{\text{Change in temperature}}{\text{Change in time}}$

$\text{Average temperature}=\frac{-22}{10}=-2.20$

Therefore, the average temperature change is -2.20 degrees Fahrenheit per hour.

3 0

3 years ago

Read 2 more answers

A realtor sold a house for $75,000 and earned a commission of $4500. Which proportion could be used to find the amount of commis

vovikov84 [41]

I think the answer you choose is correct

6 0

3 years ago

What is the explicit formula for the sequence below? 4, -12, 36, -108 ...

Temka [501]

Answer:

This is a geometry sequence (I.e each term is found by multiplying the same value to the previous term).

T1 = 4

T2 = -12 = T1 X (-3) = 4 X (-3)

T3 = 36 = T2 X (-3) = 4 X (-3)^2

T4 = 108 = T3 X (-3) = 4 X (-3)^3

The general (explicit) formula for the n-th term of this sequence is:

S(n) = 4 X (-3)^(n-1)

4 0

4 years ago

Help me please and thank you

aleksklad [387]

Answer:

b/-4+8=5
Multiply each side by 4
-b+32=20
Move the constant to the right
-b=20-32
-b=-12
Change the signs
b=12

3 0

3 years ago

#1. Use substitution to solve the system of equations

Bond [772]

Answer:

y= −2/3x+−20/3

heart if it helped you brain if im cool

3 0

3 years ago