Twenty two quarts is equivalent to how many gallons? 4.5 5.5 C 6.5 7.5

PLEASEEEEEEEE HELP!!! I DO NOT UNDERSTAND!

Novosadov [1.4K]

Answer:

81

Step-by-step explanation:

If a = 4, the exponent will be $3^{4}$ .

$3^{4}$ represents 3 being multiplied by itself 4 times.

$3^{4}$ = 3·3·3·3

$3^{4}$ =9·3·3

$3^{4}$ =27·3

$3^{4}$ =81

Your product is 81.

6 0

2 years ago

Write an equation (in slope-intercept form) that is parallel to 4x + 5y = 10 and has the same y-intercept as -3x - 4y = 24.

mart [117]

Answer:

y = -4/5 x - 6

Step-by-step explanation:

First turn both standard form equations to slope-intercept form.

4x + 5y = 10 -3x - 4y = 24

-4x -4x +3x +3x

5y = -4x + 10 -4y = 3x + 24

5 5 -4 -4

y = -4/5 x + 2. y = -3/4 x - 6

Now that you have each in slope-intercept form, we can begin the magic.

So we know that this line's y-intercept will be -6.

Not to mention since it's parallel, that means it will share the same slope as y = -4/5 x + 2, which the slope is -4/5. All together it will be

y = -4/5 x - 6. Now we can graph the line's to see if we we're right. (Look at graphs, attached above⤴⤴⤴) As you can see they are parallel.

Hope this helped :)

7 0

3 years ago

The US Department of Energy reported that 49% of homes were heated by natural gas. A random sample of 338 homes in Oregon found

Furkat [3]

Answer:

$z=\frac{0.438 -0.49}{\sqrt{\frac{0.49(1-0.49)}{338}}}=-1.912$

The p value for this case would be given by:

$p_v =2*P(z$

For this case the p value is higher than the significance level so then we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not significantly different from 0.49 or 49%

Step-by-step explanation:

Information given

n=338 represent the random sample taken

X=148 represent the homes in Oregon were heated by natural gas

$\hat p=\frac{148}{338}=0.438$ estimated proportion of homes in Oregon were heated by natural gas

$p_o=0.49$ is the value that we want to test

represent the significance level

z would represent the statistic

$p_v$ represent the p value

Hypothesis to test

We want to check if the true proportion of interest is 0.49, then the system of hypothesis are.:

Null hypothesis: $p=0.49$

Alternative hypothesis: $p \neq 0.49$

The statitic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.438 -0.49}{\sqrt{\frac{0.49(1-0.49)}{338}}}=-1.912$

The p value for this case would be given by:

$p_v =2*P(z$

For this case the p value is higher than the significance level so then we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not significantly different from 0.49 or 49%

8 0

4 years ago

Anybody wanna help?Asap?

artcher [175]

Answer:

58

Step-by-step explanation:

its simple

Hope this help you

Red

4 0

3 years ago

Solve the system of equations X=11+y 2x+y=19

raketka [301]

Answer:

Step-by-step explanation:

To solve this system of equations, let's first find the value y. We can replace the x in the second equation with 11 + y, since we are told in the first equation that x is equal to 11 + y. So, let's replace x:

2(11 + y) + y = 19

22 + 2y + y = 19

22 + 3y = 19

3y = -3

y = -1

And look at that - we've found our y-value! Now, we can replace the y in the first equation with -1 to find the value of x.

x = 11 + (-1)

x = 10

So, the solution to this system of equations is (10, -1). Hopefully that's helpful!

6 0

3 years ago

Read 2 more answers