What is the value of x in the equation, 70 = 12 + 9x – 2(x + 6)

Answer:

I think its c 28 cm tell me if it helped

Answer:

[tex]6321 + 4.5\% = 6605.445[/tex]

Answer:

The answer is 14 inches

Step-by-step explanation:

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Answer:

x=5

Step-by-step explanation:

[tex]4x^2-11=89[/tex]

add 11 to both sides

[tex]4x^2=100[/tex]

Divide 4 on both sides

[tex]x^2=25[/tex]

Take the square root of both sides to eliminate the power of two from x

[tex]\sqrt{x^2} =\sqrt{25}[/tex]

Simplify

[tex]x=5[/tex]

Answer:

it is b because if you count the points it 11 of them

Step-by-step explanation:

Answer:

to find the total number of miles traveled, you have to add the total distance from point L to point M together. 929+ 595 = 1,524 total miles traveled

to find the average miles per hour, you divide the total miles traveled, by the amount of time it took. 1,524 / 3 = 508 miles per hour

Step-by-step explanation:

Answer:

Step-by-step explanation:

LV to Colorado Springs = 595 miles

Colorado Springs to Mil=  929 miles

Total distance =                1524  miles

Average Speed = 1524 miles / 3 hours

Average Speed =  508  miles / hour

Answer:

8 car's for 88$ the same thing for the 6 car's for 66$

Answer:

Laura washed 8 cars to earn $ 88

Step-by-step explanation:

Number of cars : earnings = 6 : 66

6 : 66 :: x : 88

Product of mean  = Product of extremes

 66 * x = 6 *88

        x = [tex]\frac{6*88}{66} = \frac{1*88}{11}[/tex]

       x = 8

Answer:

looking at the image it forms

the equation it'll make B: y= -2x -4

each dot will equal -2 and the dot is maybe one 2 but thats due to the problem of 4-2x1 so it's marked on 2 instead of four incase it throw you off of thy answer of B

Step-by-step explanation:

1. First calculate for the gradient m

2. Calculate for the constant C by using any point (0,3) or (3,9)

3. Lastly, put the values found in the equation y = mx + c

1. m = Y2-Y1/X2-X1

=9-3/3-0=2

2. input one point together with m into the equation y=mx+c

3=2(0)+C

C=3

3. Therefore equation of linear relationship is

y = 2x + 3

Answer:

I think it is C

Step-by-step explanation:

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Answer:

Step-by-step explanation:

It is b

Answer:

-90%

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

Given

6x - 5y = 14 ← substitute y = 2 into the equation

6x - 5(2) = 14

6x - 10 = 14 ( add 10 to both sides )

6x = 24 ( divide both sides by 6 )

x = 4

Answer:

[tex]\huge\boxed{\sf x = 4}[/tex]

Step-by-step explanation:

[tex]\sf 6x-5y = 14\\\\Put \ y = 2\\\\6x - 5(2) = 14\\\\6x - 10 = 14\\\\ Adding \ 10 \ to \ both \ sides\\\\6x = 14+10\\\\6x = 24\\\\Dividing \ both \ sides \ by \ 6\\\\x = 24 / 6\\\\x = 4\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

What do you need help with

Step-by-step explanation:

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Answer:

C. 4/3

Step-by-step explanation:

The value of tan(2x) is -4/3

Let, 'm' be an angle then the double angle formula of tan is,

[tex]tan(2m)=\frac{2~tan(m)}{1-tan^{2}m }[/tex]

For given example,

We have cos(x) = 1/√5 and sin(x) > 0

We know, sin^2(x) + cos^(x) = 1

⇒ sin^2(x) = 1 - (1/√5)^2

⇒ sin^2(x) = 1 - (1/5)

⇒ sin^2(x) = 4/5

⇒ sin(x) = ± 2/√5

But sin(X) > 0

⇒ sin(x) = 2/√5

We know, for any angle Ф,

tan(Ф) = sin(Ф) / cos(Ф)

Hence, tan(x) = sin(x)/cos(x)

tan(x) = (2/√5) / (1/√5)

⇒ tan(x) = 2/1

⇒ tan(x) = 2

Now, using the double angle formula for tan,

[tex]\Rightarrow tan(2x)=\frac{2~tan(x)}{1-tan^{2}x }\\\\\Rightarrow tan(2x)=\frac{2\times 2}{1-(2)^{2}}\\\\ \Rightarrow tan(2x)=\frac{4}{1-4}\\\\ \Rightarrow \bold{tan(2x)=-\frac{4}{3}}[/tex]

Therefore, the value of tan(2x) is -4/3

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Answer:

The section of a parabola that shows a falling curve with decrease in the y values of the graph is known as the decreasing interval of the quadratic function

Step-by-step explanation:

Answer:

C = 25 + 50h

Step-by-step explanation:

cost for zero hours is $25, so that is the y-intercept of the graph.

each hours adds a cost of $50, so that is the gradient of the graph. These two values give us our equation in slope-intercept form.

Multiply the numerator together and the denominators together.

1 x 5 / 6 . 7 = 5/42

42 is not a multiple of 5 so the answer is already in the lowest term.

The answer is 5/42

Answer:

15%?

Step-by-step explanation:

sorry if im wrong

Answer:

ask your teacher

Step-by-step explanation:

ask your teacher

Answer:

x = 42.4 ft.

Step-by-step explanation:

[tex]sin\ 45=\frac{x}{60}\\\\x=60*sin45\\x=42.4\ ft[/tex]

Answer:

See below.

Step-by-step explanation:

A(3, 4)→ A′ (-4, -3)

B(3, 2)→ B′ (-2, -3)

C(−1, 2)→ C′ (-2, 1)

The coordinates of the vertices of the image of △ABC after a reflection in the line y=−x are A'(-4,-3), B'(-2,-3), and C'(-2,1) and this can be determined by using the rules of transformation.

Given :

The triangle ABC is reflected about the line (y = -x).

The following steps can be used in order to determine the coordinates of the vertices of the image of △ABC after a reflection in the line (y = −x):

Step 1 - Let the coordinate be (x,y) so after the reflection about (y = -x) the coordinate becomes (-y,-x).

Step 2 - The coordinate A(3,4) after the reflection about (y = -x) becomes A'(-4,-3).

Step 3 - The coordinate B(3,2) after the reflection about (y = -x) becomes B'(-2,-3).

Step 4 - The coordinate C(-1,2) after the reflection about (y = -x) becomes C'(-2,1).

For more information, refer to the link given below:

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Answer:

X = 5

Step-by-step explanation:

To find the solution to a problem like this remember the order of PEMDAS.

According to pemdas parenthesis comes first, do you would solve for this part of the equation by multiplying the outer number by each side inside the parenthesis

Aka 3 × X and 3 × 1

This would make your new equation

3x + 3 = 18

Then, you would try to shorten the equation by removing or adding something to both sides.

In the given equation that would be subtracting 3 by either side, leaving over

3x = 15

Lastly, to find X you would divide 3x and 15

3 ÷ 15 = 5

Therefore X = 5

Answer:

x = 5

Step-by-step explanation:

1. First we need to simplify both sides of the equation.

( 3 )( x ) + ( 3 )( 1 ) = 18 Distribute the equation.

= 3x + 3 = 18

2. Now subtract 3 from both sides.

3x + 3 − 3 = 18 − 3

3x = 15

3.  Now divide both sides by 3.

3x/3 = 15/3

x = 5

Answer:

yes np

Step-by-step explanation:

Answer:163 bpm

Step-by-step explanation:

The running heart rate of a girl as per linear equation will be 178.7 bpm.

Linear equation is an equation where the highest power of a variable is 1.

As per given data,

The average walking heart rate of eight girls is = (66 + 72 + 74 + 78 + 80 + 84 + 86 + 88)/ 8 = 78.5 bpm.

The average running heart rate of eight girls is = (128 + 136 + 134 + 138 + 142 + 144 + 14 8 + 152)/8 = 1122/8 = 140.25 bpm.

Therefore, for walking heart rate of x, the running heart rate will be (140.25/78.5)x = 1.787x.

Hence, the linear equation between walking heart rate and running heart rate is y = 1.787x.

Now, for walking heart rate of 100 bpm of a girl, the running heart rate will be = 1.787 × 100 bpm = 1787.7 bpm.

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Answer:

d > -3/16

Step-by-step explanation:

Answer:

the answer is 32

Step-by-step explanation:

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Answer:

240 miles

Step-by-step explanation:

Given that:

Charges offered by Prestige car rentals for renting a midsize vehicle:

Fixed charges = $47

Per mile charges for renting a midsize vehicle = $0.07

Charges offered by Gateway Auto for renting a midsize vehicle:

Fixed charges = $35

Per mile charges for renting a midsize vehicle = $0.12

To find:

Number of miles for which both the companies charge the same price?

Solution:

Let the number of miles for which both the companies will charge the same price = [tex]x[/tex] miles

Charges for one mile by Prestige car rentals = $0.07

Charges for [tex]x[/tex] miles by Prestige car rentals = $0.07[tex]x[/tex]

Total charges by Prestige Car rentals = $47 + $0.07[tex]x[/tex]

Charges for one mile by Gateway Auto = $0.12

Charges for [tex]x[/tex] miles by Gateway Auto = $0.12[tex]x[/tex]

Total charges by Gateway Auto = $35 + $0.12[tex]x[/tex]

As per question statement, the charges are same:

[tex]\$47 + \$0.07x = \$35 + \$0.12x\\\Rightarrow 12=0.05x\\\Rightarrow x=\dfrac{1200}{5}\\\Rightarrow \bold{x=240\ miles}[/tex]