I need help ASAP thank you

Answer:

Step-by-step explanation: x^2-10x+21=0

(x-7)(x-3)

x = 3,7

Awnser-H=5/2

Explantion- Absolute value equalitiy entered

     7|-3h+8| = 21h-49  Clear the absolute-value bars by splitting the equation into its two cases, one for the Positive case and the other for the Negative case.

The Absolute Value term is 7|-3h+8|

For the Negative case we'll use -7(-3h+8)  

For the Positive case we'll use 7(-3h+8)  

-7(-3h+8) = 21h-49  

    Multiply

     21h-56 = 21h-49  

    Rearrange and Add up

     0h = 7  

    False, No solution for the Negative Case 7(-3h+8) = 21h-49  

    Multiply

     -21h+56 = 21h-49  

    Rearrange and Add up

     -42h = -105  

    Divide both sides by 42

     -h = -(5/2)  

    Multiply both sides by (-1)

     h = (5/2)  

    Which is the solution for the Positive Case When an absolute value equation has just one solution, that solution has to be checked:

The equality is  7|-3h+8| = 21h-49  

The solution is  h = 5/2  

We check the solution by plugging it for h

7|-3(5/2)+8| = 21(5/2)-49  

The left hand side is equal to   (7/2)  

The right hand side is equal to   (7/2)  

The two sides are equal!

Solution checks!

h=5/2

Answer:

9+-13+7 so the answer is the last one

Step-by-step explanation:

Answer:

B. input

Step-by-step explanation:

Answer:

C) 6

Step-by-step explanation:

I converted the equation into slope-intercept form and then identified the y-intercept.

[tex]4x+2y=12\\\\4x-4x+2y=12-4x\\\\2y=12-4x\\\\\frac{2y=12-4x}{2}\\\\ y=6-2x\\\\y=-2x+6\\\\y=-2x+\boxed{6}[/tex]

C should be the correct answer.

Hope this helps.

Answer: 6

Step-by-step explanation: The y-intercept is a point where a line

crosses the y-axis and all y-intercepts have an x-coordinate of zero.

So to find the y-intercept of this line, we can plug a 0 in for x.

So we have 4(0) + 2y = 12.

So 2y = 12 which means that y = 6.

So the y-intercept of this line is 6.

Answer:

answer is C because it is

Answer:

x = 0 & y = 2. Hope this helped <3

The value of x and y from the equation is 1/6 and 5/6 respectively

x = 1/6

y = 5/6

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the first equation be A

11x - 7y = -4   be equation (1)

Let the second equation be B

-14x - 2y = -4   be equation (2)

On simplifying , we get

Multiply equation (2) by 7 , we get

-98x - 14y = -28   be equation (3)

Multiply equation (1) by 2 , we get

22x - 14y = -8   be equation (4)

Subtract equation (4) from equation (3) , we get

-120x = -20

Divide by 120 on both sides , we get

x = 1/6

Now , substituting the value of x in equation (1) , we get

11x - 7y = -4  

11 ( 1/6 ) - 7y = -4

Adding 7y on both sides , we get

7y - 4 = 11/6

Adding 4 on both sides , we get

7y = 11/6 + 4

7y = 35/6

Multiply by 7 on both sides , we get

y = 5/6

Hence , the value of x is 1/6 and value of y is 5/6

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Answer:

1/7

Step-by-step explanation:

I got it right

Answer:

A would be 35

Step-by-step explanation:

if that area is at a 90 digre angle then do 90- 55 then you get your anwser.

Answer:

n = 80

Step-by-step explanation:

20= n/4

Multiply each side by 4

4 * 20 = n/4*4

80 = n

Answer:

n = 80

Step-by-step explanation:

I hope this helps!

Answer:8

Step-by-step explanation:take off the negative symbol

Answer:

D

Step-by-step explanation:

Answer:

1/ ( 5*5*5*5*5*5)

Step-by-step explanation:

(5^3)^-2

We know that a^b^c = a^ ( b*c)

5^(3*-2)

5^ -6

We know that a^ -b = 1/ a^b

1/5 ^6

1/ ( 5*5*5*5*5*5)

Answer:

f(5) = 124

Step-by-step explanation:

Step 1: Define

f(x) = 22x + 14

f(5) = x = 5

Step 2: Substitute and evaluate

f(5) = 22(5) + 14

f(5) = 110 + 14

f(5) = 124

Answer:

3

Step-by-step explanation:

If the speech comma are suppose to represent 3 Squared then here are the steps:

3×3=9

27÷9=3

Hope this helps you :))

Answer:

(0,-10)

Step-by-step explanation:

Answer:

 your answer Is 3

Step-by-step explanation:

You do y2-y1 and x2-x1

that gives you -2-22/-4-4 which leaves you with

-24/-8

and that’s 3

Having 1 as an exponent does nothing to the original number.

2/3^1 = 2/3

Best of Luck!

Answer:

[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Anything to the power of 1 is itself.

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

If a number is to the power of 2, it multiplies itself and there are two 8 terms.

[tex]8^2=8*8[/tex]

Thus, if a number is to the power of 1, it is just by itself.

[tex]8^1=8[/tex]

Answer:

60 seconds/1 minute

Step-by-step explanation:

We are trying to convert 20.1 meters/second to per minute. Since we know there's 60 seconds in a minute, we would use the conversion factor 60 seconds/1 minute in order to find greyhounds speed per minute

Answer:

b

Step-by-step explanation:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Answer:

-3.5

Step-by-step explanation: 33/6= 5.5 5.5-9= -3.5

Answer:

y = 3

Step-by-step explanation:

1. Subtract 33 by 15 (9+6)

2. You get the answer 18

3. 6 times y = 18

4. y = 3 ; therefore y equals 3.

5. Y = 3

The minimum number of $0.10 stamps he needs to use is 1 stamp.

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

Given:

let x represents the number of $0.44 cent stamps

and, y represents the number of $0.10 cent stamps

Ori uses all 3 of the $0.44 cent

=0.44x3

= 1.32

Then, 1.47-1.32= 0.15

We have at least 2 dimes for the equation

=0.44(3)+0.10(2)≥1.47

= 1.32+0.20≥1.47

= 1.52≥1.47

Then,  number of $0.10 stamps he needs to use

= 0.15/ 0.10

= 1.5

= 2 or 1 stamps

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Answer:

2.

Step-by-step explanation:

Answer:

It depends on how long the measurement is for each amount of money for example every 5 miles pay $12 so it would be which would be 11$.5 and the equation would be $12/5mi and if he had to pay $138 then it shows that he went 11.5 mi

Step-by-step explanation:

Answer:

No.

If two rectangles are congruent, it means they are the exact same shape and size.

I have uploaded an image with this answer. In the image, you can see two rectangles with the same perimeter. However, they are not congruent because they are not of the same size (even though they are of the same shape - a rectangle).

Hence, two rectangles may not be congruent if they have the same perimeter.

Answer:

its the distance it has from 0 on the number line.

Step-by-step explanation:

Answer:

UT=17 because both UT and RU are the same length, same with QU and US

Step-by-step explanation:

Answer:

275 km

Step-by-step explanation:

5.5 x 1   cm: 5.5 x 50 km

5.5 km : 275 km

Answer:

$3 for every pound....

Answer:it would be b $3.00 for every pound

explanation:A unit price is something for each not multiple

Answer:

rvg g rtb rg  gt ggw

Step-by-step explanation:

g wgrgr wrgf  r

Answer:

Step-by-step explanation:

1 oz = 0.0625 lb

Ratio of the hiker an backpack in the first row = 152.25 lb : 14.5 lb

                                                                            = 21 : 2

Hiker's weight       Backpack weight                  Total weight (in lb)

1). 152 lb 4 oz                14 lb 8 oz                (152+14) lb (4+8) oz = 164lb 12oz

                                                                                                  = 16.75 lb

2). 107 lb 10 oz               10 lb 4 oz                (107+10) lb (10+4) oz = 117 lb 14 oz

                                                                                                        = 117.875 lb

3). 129 lb 15 oz           [tex]\frac{129.9375}{x}=\frac{21}{2}[/tex]                 (129+12) lb (15+6)oz = 141 lb 21 oz

                              x = 12.375 lb                                                      = 142.3125lb

                              x = 12 lb 6 oz

4). [tex]\frac{x}{8.75}=\frac{21}{2}[/tex]                   8 lb 12 oz                 (8 + 91) lb (14+12) oz = 99 lb 26 lb

   x = 91.875 lb                                                                                = 100.625 lb

  x = 91 lb 14 oz

5). [tex]\frac{x}{10}=\frac{21}{2}[/tex]                     10 lb                           (105 + 10) lb = 115 lb

    x = 105 lb                    

Answer:

7 degrees Fahrenheit

Step-by-step explanation:

-3 + 11 = 7

It's the same as

11-3= 7

Answer:

5t-5

Step-by-step explanation: