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3 years ago

8

a student finished 8 of her homework problems in class If the ratio of problems she finished two problems she still have left wa

s 4 to 1 how many homework problems did she have total

1 answer:

Eddi Din [679]3 years ago

8 0

Answer:

10 total

Step-by-step explanation:

4:1 = 8:x. You should see immediately that she has 2 left to do, but if you don't see x, cross multiply and solve.

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I want a tutor can I have some one help me

jekas [21]

Answer:

If you want add me on discord >>> fun54658#0871

7 0

3 years ago

Read 2 more answers

Which of the following is a valid comparison between the possible minimum and maximum values of the function y = -x2 + 4x - 8 an

Arturiano [62]

Answer:

The maximum value of the equation is 1 less than the maximum value of the graph

Step-by-step explanation:

We have the equation $y=-x^2+4x-8$ .

We can know that this graph will have a maximum value as this is a negative parabola.

In order to find the maximum value, we can use the equation $x=\frac{-b}{2a}$

In our given equation:

a=-1

b=4

c=-8

Now we can plug in these values to the equation

$x=\frac{-4}{-2} \\\\x=2$

Now we can plug the x value where the maximum occurs to find the max value of the equation

$y=-(2)^2+4(2)-8\\\\y=-4+8-8\\\\y=-4$

This means that the maximum of this equation is -4.

The maximum of the graph is shown to be -3

This means that the maximum value of the equation is 1 less than the maximum value of the graph

6 0

3 years ago

How would i create a real life example that can be modeled by the expression -2×4

solong [7]

Bob is diving
he is at a depth of 2 meters below sea level
sam goes down 4 times as deep
how deep is sam

depth is a negative thing because you are 2 below 0 or -2
then we mutiply -2 by 4 to get 4 times to get -8 meters below sea level

8 0

2 years ago

Read 2 more answers

Plz ANWSER questions 10,11, and 12, plz <br>Plz no one will amwser

k0ka [10]

Answer:

19,8

105,7

144,84

304

Step-by-step explanation:

At first, 9) is not correct.

Formula for surface of parallelogram is

A=a*H

DONt divide with 2.

So the 9) is 19.8

10) A=15.1*7=105.7

11) A=14.2*10.2=144.84

12) A=20*15.2=304

6 0

3 years ago

Simplify the expression. Write your answer as a power. <br><br> (-3)^4/(-3)^1

ELEN [110]

Step-by-step explanation:

Simplify the following:

(((-3)/4)^5)^2

Multiply exponents. (((-3)/4)^5)^2 = ((-3)/4)^(5×2):

((-3)/4)^(5×2)

5×2 = 10:

((-3)/4)^10

((-3)/4)^10 = (-3)^10/4^10:

(-3)^10/4^10

(-3)^10 = (-1)^10×3^10 = 1×3^10:

3^10/4^10

4^10 = (4^5)^2 = (4×4^4)^2 = (4 (4^2)^2)^2:

3^10/(4 (4^2)^2)^2

4^2 = 16:

3^10/(4×16^2)^2

3^10/(4×256)^2

4×256 = 1024:

3^10/1024^2

3^10/1048576

Answer=3^10 / 2^20

5 0

3 years ago