Is (4, 2) is the solution to the system below?
Explain how you know by recording an audio response or by showing your work.
y=2x-6
x+y=8

Answer:

the answer would be A because the x's are 1's

Answer:

I'm so sorry I don't know how to do this

Step-by-step explanation:

Answer:

no, h=7

Step-by-step explanation:

9+9h = 10h+2

9=h+2

7=h

Answer:

30 feet tall

Step-by-step explanation:

Set up a proportion where x is the height of the tree

[tex]\frac{5}{3\frac{1}{3} }[/tex] = [tex]\frac{x}{20}[/tex]

Cross multiply and solve for x:

100 = 3[tex]\frac{1}{3}[/tex]x

30 = x

So, the tree is 30 feet tall

Answer for 7: C

Answer for 9: A

Step-by-step explanation for 7:

Because the variable is an exponent, we know there are no real numbers which cannot be placed in the exponent. Therefore, the domain is all real numbers.

Step-by-step explanation for 9:

Test a few values for x. Notice as the x value gets higher, the y value gets exponentially higher. Notice as the x value gets lower, the y value approaches 0, but no value of x will have y equal to or less than 0. Therefor, the asymptote, or line that cannot be crossed is 0 - making A the correct solution.

Answer:

$8.08

Step-by-step explanation:

First subtract 9.50 from 35.75 to get

24.25

Then divide 24.25 by 3 to get

Approx $8.08

Answer:

y=1/2x+7

Step-by-step explanation:

y-5=1/2(x-(-4))

y-5=1/2x+2

y=1/2x+7

Answer: $276.25

Step-by-step explanation:

250 times .07 = 17.5

17.5 times 1.5 = 26.25

250 + 26.25 = 276.25

Answer:

2.25π square inches

Step-by-step explanation:

Area = π[tex]r^{2}[/tex]

Diameter = 2r

So in this case, radius = 1.5 inches

Plugging that into the area formula produces the answer

Answer:

4/5

Step-by-step explanation:

Just divide both parts of the fraction by 7

28/7=4

35/7=5

Answer:

4/5

Step-by-step explanation:

Divide both the numerator and denominate by 7

28/7=4

35/7=5

Answer:

D

Step-by-step explanation:

y_2 - y_1 / x_2 - x _1

4 - 2 / 3 - (-1) = 2/4 = 1/2

y +4 = 1/2 (x + 3) distributive property

y + 4 = 1/2x + 1.5

y= 1/2x - 5/2 subtraction (you subtract 4 from both sides) (-5/2 = -2.5)

therefore your equation is y = 1/2x - 5/2

hope this helps :)

Answer:

a = -0.57

rounded to the nearest tenth: a = -0.6

Step-by-step explanation:

(25 - a) ÷ 7 = 3

25 - a ÷ 7 = 3

25 ÷ 7 - a = 3

3.6 - a = 3

3.57 - 3.57 - a = 3 - 3.57

a = -0.57

The value of "a" in the equation (25 - a) ÷ 7 = 3 is 4.

To find the value of "a" in the equation (25 - a) ÷ 7 = 3.

we can solve for "a" by isolating it on one side of the equation.

(25 - a)/7 = 3.

Multiply both sides of the equation by 7 to get rid of the division:

7(25 - a)/7 = 3 × 7.

25 - a = 21.

To isolate "a," subtract 25 from both sides of the equation:

25 - a - 25 = 21 - 25.

Simplifying further, we get:

-a = -4.

Multiply both sides of the equation by -1 to solve for "a":

-1 × (-a) = -1× (-4).

a = 4.

Therefore, the value of "a" in the equation (25 - a) ÷ 7 = 3 is 4.

To learn more on Equation:

https://brainly.com/question/10413253

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218 is the answer i think

Answer:

x=3, y= - 2

Step-by-step explanation:

4x + 3y = 6

x-3y= 9

x=9+3y

4.(9+3y)+3y=6

36+12y+3y=6

15y = - 30

y = - 2

=> x= 9+3y

x= 9+ 3.(- 2)

x= 3

Answer:

-5/2÷5/7

change to multiplication

-5/2×7/5

reduce the numbers of the greatest common factor of 5

-1/2×7

calculate the product

-1/2×7

the answer is -7/2

if I'm wrong sorry I used a math app to find the answer

Answer:

144°

Step-by-step explanation:

m<1 =3x

m< 2= 12x

1&2 are supplementary angles, so

3x+12x= 180

15x=180

x= 12°

measure of angle 4 equals the measure of angle 2

because they're head opposite angles

m<4= 144°

Answer:

the answer is one

Step-by-step explanation:

1.......

Answer:

A fraction like 4/4 is called an "improper fraction". An improper fraction is one in which the numerator (the top number) is greater than or equal to the denominator (the bottom number). Another example of an improper fraction is 8/7 in which the numerator, 8, is greater than the denominator, 7.

Step-by-step explanation:

Answer:

angle: 71

x = -3

Step-by-step explanation:

step 1: 180-(55+54) = 71

step 2: x+74=71 (subtract 74 from both sides)

step 3: x=-3

step 4: -3+74=71

Answer:45%

Step-by-step explanation:

Answer:

g+11=60

Sum=11

Sum= +

Height is =60

Answer:

$10.50

Step-by-step explanation:

15 times 30 = 4.5

15-4.5=10.50

Answer:

Step-by-step explanation:

Use the second kinematic formula

[tex]x_f-x_i=V_it+\frac{1}{2}at^2\\20=8t+\frac{1}{2}(9.8)t^2\\4.9t^2+8t-20=0[/tex]

Apply the quadratic formula to solve for time. The negative value does not matter because time cannot be negative, its impossible.

I got a value of t = 1.363 seconds

Answer:

i dont see a number line, attach a pic pls

Step-by-step explanation:

Answer:

the answer is associative

Step-by-step explanation:

Answer:

D. 22x^2-18x-15

Step-by-step explanation:

12x²-19x+4 + 10x²+x-19

22x²-18x-15

Answer:

300

Step-by-step explanation:

180÷3=60

60x5=300

Answer: 300 words in 5 minutes

Step-by-step explanation:

divide 180 by 3 (equals 60)

multiply 60 by 5 to get your answer (300)

Answer:

Y=-1

Step-by-step explanation:

The slope of line is zero

Answer:

The correct answer should be 3÷8

Answer:

3÷8

Step-by-step explanation:

Answer:

slope = - 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 8,6) and (x₂, y₂ ) = (0, - 2) ← 2 points on the line

m = [tex]\frac{-2-6}{0+8}[/tex] = [tex]\frac{-8}{8}[/tex] = - 1