I need some help. Could someone explain it to me?​

Answer:

MARK AS BRAINLIST

w = 4

L = 7

Step-by-step explanation:

L = length of rectangle

w = width of rectangle

L = 3 + w

A = 28

A = L*w

=(3+w) * w

28 = 3w + w^2

w^2 + 3w - 28 = 0

w^2 + 7w - 4w - 28 = 0

w ( w + 7 ) - 4 ( w + 7 ) =0

( w - 4 ) ( w + 7 ) = 0

w = 4. and w = -7

take the postive value, w = 4

therefore L= 3+4 = 7

Answer:

  -9.5

Step-by-step explanation:

The slope (m) is the ratio of the change in y to the change in x:

  m = (y2 -y1)/(x2 -x1)

  m = (10-(-9))/(-3-(-1)) = 19/-2

  m = -9.5

The slope of that line is -9.5.

__

The graph shows the line through those points, written in point-slope form.

information about the age of the respondents is missing, so i have attached it.

Answer:

Option A: We are 95% confident that the interval 29.7215 to 30.5029 includes the population mean age of all respondents.

Step-by-step explanation:

From the attached information given, we see that under the 95% Confidence interval column, that the corresponding mean age of all respondents is the interval 29.7215 to 30.5029.

Now, the mean is population mean because it's the mean of all the respondents in the population.

Thus, the correct answer is;

We are 95% confident that the interval 29.7215 to 30.5029 includes the population mean age of all respondents.

Answer:

multiply Three-fourths by 8.

Step-by-step explanation:

Answer: B multiply Three-fourths by 8.

Step-by-step explanation:

Answer:

It's 9 3/8! :)

Step-by-step explanation:

Answer:

A) If a quadrilateral has 4 equal sides and 4 equal angles, then each of its angles must measure 90 degrees.

Step-by-step explanation:

just did the unit review on edgenutiy 2020

hope this helps :)

Answer:

A) If a quadrilateral has 4 equal sides and 4 equal angles, then each of its angles must measure 90 degrees.

Hope it helps!! :)

Answer:

Plug g(x) into all the x values in your f(x) and the answer is 3 because it makes the denominator 1-1 which makes it 0 and is thus discontinuous

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) 0

2) 19

3) -6

4) -27

5) -35

6) 20

7) -75

8) -8

9) 183

10) 0

please give award!

Answer:

Step-by-step explanation:

Identify the number of decimal places in each factor.

    0.47

  × 3.2

The number of decimal places in 0.47 is

✔ 2

.

The number of decimal places in 3.2 is

✔ 1

.

The number of decimal places in the product will be the sum of the factors’ decimal places. So the product will have

✔ 3

decimal places.

Answer:-7

Step-by-step explanation:

Answer:

$-8

Step-by-step explanation:

Subtract 3 from 7 for the first day. She has $4 left

Subtract 3 from 4 for the second day. She has $1 left

Subtract 3 from 1 for the third day. She has $-2 left

Subtract 3 from -2 for the fourth day. She has $-5 left

Subtract 3 from -5 for the fifth day. She has $-8 left in her lunch account

Answer:

Step-by-step explanation:

Since you know both triangles are congruent, you can say that the corresponding sides are equal. For example, you can say:

17x+3 = 57

because they are corresponding sides of both triangles. To further solve the equation:

17x = 54 --> x = 54/17 --> 3 3/17

Same thing for Y. lines PX and FD are congruent, so, you can say:

4y-3 = 54

4y=57

y= 14.25

Answer:

2,500

Step-by-step explanation:

Answer:

A number increased by one multiplied by two.

Two distributed into a number and one.

Step-by-step explanation:

First one is way more likely.

Answer:I have this same problem but if you’re asking for the independent and other questions here’s the answer. Independent variable is the radio since that’s the only change happening to the 10 other pots. Dependent variable is the height of the plant since that’s what Ramona wants to see change as the output. Control group is the 5 pots without the radio i’m pretty sure. The constants are the amount of seeds, pots, soil, and water.

Step-by-step explanation:

Step-by-step explanation:

((2^2)^2)*2

=(4^2)*2=16*2=32

Answer:

9( x-3) (x-1)

Step-by-step explanation:

(5x − 6)^2 − (4x − 3)^2

This is the difference of squares   a^2 - b^2 = ( a-b) (a+b)

(5x − 6)^2 − (4x − 3)^2   where a = 5x-6  and b = 4x-3

( 5x-6 - (4x-3))  ( 5x-6 +(4x-3)

Distribute

( 5x-6 -4x+3)  ( 5x-6 +4x-3)

Combine like terms

(x-3) ( 9x-9)

Factor out the 9

9( x-3) (x-1)

Answer:

[tex](4,2 )[/tex]

Step-by-step explanation:

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )[/tex]

Simply plug in your 2 coordinates into the midpoint formula to find midpoint:

[tex](\frac{5+3}{2},\frac{7-3}{2} )[/tex]

[tex](\frac{8}{2},\frac{4}{2} )[/tex]

[tex](4,2 )[/tex]

Answer:

Hope this helps! <3

( Pic Below )

Answer:

800+90+4

Step-by-step explanation:

800+90=890 and 890+4=894

HOPE THIS HELPS

9514 1404 393

Answer:

  2y -x = -6

Step-by-step explanation:

You can use the same x- and y-coefficients. You just have to change the constant on the right. Put the point values into the left expression to see the new constant.

  2y -x = 2(-1)-(4) = -6

The parallel line is ...

  2y -x = -6

Answer:

14 (insert less than or equal symbol)8x+6

Hope this helps! i hope the symbol is right!

Answer:

It is 60%

Step-by-step explanation:

84.50 x 0.60% = 50.7 (also 50.70)

I hope my answer helps even though I am in middle school :)

The required percent decrease in the price of the skateboard is 40%.

The original price for its Extreme Skate Board was $84.50. The sale price for the skateboard is $50.70. What is the percent decrease in the price of the skateboard is to be determined.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
Original price = $84.50
sale price = $50.70
Percent decrese = 84.50-50.70/84.50 × 100 = 40%

Thus, the required percent decrease in the price of the skateboard is 40%.

Learn more about percentages here:

brainly.com/question/13450942

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Hi! I'd be happy to help you. However, there is not enough information here for us to help, as there is no way to tell which graph is correct without the equations of f(x) and g(x). They'd look something like:

"f(x) = x-2," or "g(x) = 7x+3."

Are you able to provide the equations of of f(x) and g(x)? I would be more than happy to help.

----------------------------------------------------------------------------------------------------------------

UPDATE: I did not realize that you could solve this problem without the original equations. Please refer to the other user's response for an amazing and detailed explanation of this problem! :)

Answer:

The first graph.

Step-by-step explanation:

We want to find the graph that shows:

[tex]h(x)=f(x)g(x)[/tex]

Notice that g(x) is a line and f(x) is a quadratic.

So, their product must be a cubic.

Also, g(x) and f(x) is the same across all four graphs. The only difference is h(x).

Notice that our quadratic f(x) is curving upwards. Therefore, the leading coefficient of f(x) is positive.

Notice that the line g(x) is sloping downwards. Therefore, the leading coefficient of g(x) is negative.

So, this means that the leading coefficient of our cubic h(x) must be negative since a positive times a negative yields a negative.

Remember that the parent cubic function has a positive leading coefficient and it rises from left to right.

So, if our leading coefficient is negative, the cubic will fall from left to right.

Therefore, we can eliminate the 2nd and 3rd graphs since in those two, h(x) has a positive leading coefficient.

Now, we can just pick a test point and determine whether our graph is the first or the fourth.

Let's let x = -2. So, we have the equation:

[tex]h(x)=f(x)g(x)[/tex]

Substitute all Xs for -2s:

[tex]h(-2)=f(-2)g(-2)[/tex]

Looking at the graphs, we can see that f(-2) is 8. g(-2) is 0.5. Substituting this back, we get:

[tex]h(-2)=8(.5)=4[/tex]

So, h(-2) should be 4.

For the first graph, h(-2) is indeed 4.

For the second graph, h(-2) is 6.

So, the correct graph that represents f(x)g(x) is the first graph.

And we're done!

Answer

5x + 10y = 25    x=1  y=2

2x + 12y = 18    x=3  y=1

plz mark brainliest

also plz try to answer this question

I believe it is 50 degrees

Explanation:

180-115 = 65 degrees

Since the base angles of of an isosceles triangle are equal,

Angle C =angle A= 65 degrees

65 times 2 = 130

180-130=50

50 degrees=measure of angle B

Hope this helps

Answer:

She would get $1647.2 biweekly.

Step-by-step explanation:

There are 52 weeks in a year.

52 ÷ 2 = 26

Money divided biweekly.

42, 670 ÷ 26 = 1, 641.3

Answer:

Yasuko buys 2.25 pound of cheeses and 6 pound of meats at the deli

Step-by-step explanation:

3 x 3/4 = 2.25 pound cheese

4 x 1.5 = 6 pound of meat

Answer:

4  1/4

Step-by-step explanation:

I did the test

Answer:

29,205

Step-by-step explanation:

100% - 17.5% = 82.5%

82.5% * 35,400 = answer

make percent a decimal

.825 * 35,400 = 29,205

29,205 is answer

The required current value of the ambulance is given as $29,205.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,

The value of an ambulance depreciated by 17.5% from the purchase price of $35,400 a year ago.

Current price = 35400[1 - 0.175]
Current price =  $29,205

Thus, the required current value of the ambulance is given as $29,205.

Learn more about percentages here:

brainly.com/question/13450942

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