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3 years ago

What is the solution?

Mathematics

1 answer:

BaLLatris [955]3 years ago

4 0

Answer:

What's the question?

Step-by-step explanation:

I hope you have a good night btw!!!

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The equation y=7.6x represents a proportional relationship what is the constant of proportionality?

prisoha [69]

Answer:

Option B. 7.6

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

where

k is the constant of proportionality

The slope of the linear equation is the same that the constant of proportionality

In this problem we have

$y=7.6x$

the slope is $m=7.6$

therefore

The constant of proportionality k is $k=7.6$

5 0

3 years ago

QUESTION 8. An unknown number is added to 8. The sum is

Rudik [331]

Answer:

Step-by-step explanation:

Let the unknown number be x

If an unknown number is added to 8, this is expressed as;

8 + x

If The sum is then divided by 9 to give the answer 10, then;

(8+x)/9 = 10

Cross multiply

8 + x = 9 * 10

8 + x = 90

x = 90 - 8

x = 82

Hence the unknown number is 82

3 0

3 years ago

Ninety percent of recent car buyers say safety was an important factor in their purchase. Yet of these car buyers, only half con

Tresset [83]

Answer:(E) Anyone to whom safety is an important factor in purchasing a car will consult an objective source of vehicle safety information before buying.

Step-by-step explanation: Safety is a term which means the various steps and Activities and processes taken or put in place in order to prevent hazard or damages to an individual,a group of persons,the environment or properties.

FOR SAFETY OBJECTIVE INFORMATION IS A KEY FACTOR WHICH IS NEEDED TO EFFECTIVELY TAKE THE APPROPRIATE STEPS TO PREVENT OR MITIGATE ANY RISKY OR HAZARDOUS SITUATION OR MATERIALS.

6 0

4 years ago

Yea I can do tomorrow it would take me to get the money back to you

Tems11 [23]

Given, the equation that represents the height of an object:

$y(t)=100t-16t^2$

First, we will find the velocity of the object which is the first derivative of the height using the method of the limits

$\frac{dy}{dt}=\lim_{h\to a}\frac{y(3+h)-y(3)}{(3+h)-(3)}$

We will find the value of the function y(t) when t = 3, and when t = 3+h

$\begin{gathered} y(3+h)=100(3+h)-16(3+h)^2 \\ y(3+h)=300+300h-16(9+6h+h^2) \\ y(3+h)=300+300h-144-96h-16h^2 \\ y(3+h)=156+4h-16h^2 \\ y(3)=100(3)-16(3)^2=156 \end{gathered}$

Substitute y(3+h) and y(3) into the expression of the limit

$\begin{gathered} \frac{dy}{dt}|_{t=3}=\lim_{h\to a}\frac{156+4h-16h^2-156}{3+h-3}=\lim_{h\to a}\frac{4h-16h^2}{h} \\ \\ \frac{dy}{dt}|_{t=3}=\lim_{h\to a}(4-16h) \end{gathered}$

Where a = 0

d) compute the instantaneous velocity at t = 3