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3 years ago

Is (-1,1) a solution to y=3x+4 and 4y-3x=-7

1 answer:

7 0

(-1,1) is a solution to y=3x+4 but is not a solution to 4y-3x=-7

4y-3x=-7
Plug in the points
4(1)-(3(-1)) =-7
4+3 does not equal -7

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Which number could be a root of f(x)=0 with a multiplicity of 4?<br><br> 3<br> -2<br> -3<br> 2

meriva

The best and the most correct answer among the choices provided by the question is the second choice. The number that <span>could be a root of f(x)=0 with a multiplicity of 4 is -2. </span>I hope my answer has come to your help. God bless and have a nice day ahead!

4 0

3 years ago

How many seconds will it take an echo to reach your ears if you yell toward a mountain

DiKsa [7]

It will take 0.556 seconds for an echo to reach one's ears

<h3>Calculating the time to hear an echo</h3>

From the question, we are to determine how long it would take an echo to reach one's ears

From the formula,

$Speed = \frac{2 \times distance \ travelled\ by \ sound}{Time}$

NOTE: To hear an echo, the sound will travel to and fro, hence, it will cover twice the distance

From the given information,

Distance = 92.0 m

NOTE: Speed of sound in air at 0 °C ≅ 331 m/s

Putting the parameters into the formula, we get

$331 = \frac{2 \times 92.0}{Time}$

$Time = \frac{2 \times 92.0}{331}$

Time = 0.556 secs

Hence, it will take 0.556 seconds for an echo to reach one's ears.

Learn more on Calculating the time to hear an echo here: brainly.com/question/16676723

#SPJ1

6 0

2 years ago

If (-3, y) lies on the graph of y = , then y =

ser-zykov [4K]

Answer:

The value of y is 64.

Step-by-step explanation:

The given equation is

$y=(\frac{1}{4})^x$

It is given that (-3, y) lies on the graph of y. It means the equation of the function must be satisfy by the point (-3,y).

Substitute x=-3 in the given equation to find the value of y,

$y=(\frac{1}{4})^{-3}$

$y=4^{3}$ $(\frac{a}{b})^{-n}=(\frac{b}{a})^n$

$y=64$

Therefore the value of y is 64.

5 0

4 years ago

Please help me understand how to solve thus problem and answer the questions

Ratling [72]

Answer:

y = |x-2|

Step-by-step explanation:

the basic function is |x|, (I'm going to assume that you should have learned this in class by now, and you need to know that to continue

anyways, y = |x| is what you would normally see, with the center on (0,0)

however, this has been translated 2 units to the right, and based on translation rules, right-left shifts are unit shifts within the x parentheses so, y = |x-2|

if you dont believe me plug it into an online graphing calculator

hope this helps

4 0

2 years ago

Read 2 more answers

What’s the difference of 1/4 and 1/5?

vfiekz [6]

1/4 is 25% or 0.25

1/5 is 20% or 0.20

So the difference between the two is 5%, 0.05, or 1/20.

7 0

3 years ago