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Sloan [31]
3 years ago
15

Plssssssssssssss helppppppppppp

Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
7 0

Answer:

the direct variation is the first one.

a

yarga [219]3 years ago
5 0

Answer:

y=0.5x

Step-by-step explanation:

duhhh

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1. Solve the system by substitution.
zubka84 [21]

Answer:

The required solution is (0.128,13.82)

Step-by-step explanation:

Consider the provided system of equation.

-2.5x+y=13.5......(1)

12.25x - y=-12.25......(2)

We need to solve the system of equation by substitution method.

Consider the equation 1.

-2.5x+y=13.5

y=13.5+2.5x ......(3)

Substitute the value of y in equation 2.

12.25x - (13.5+2.5x)=-12.25

12.25x-13.5-2.5x=-12.25

9.75x-13.5=-12.25

9.75x=-12.25+13.5

9.75x=1.25

x\approx 0.128

Now substitute the value of x in equation 3.

y=13.5+2.5(0.128)

y\approx 13.82

Hence, the required solution is (0.128, 13.82)

5 0
3 years ago
Which of the following describes the graph of y = StartRoot negative 4 x minus 36 EndRoot compared to the parent square root fun
RoseWind [281]

Answer:

stretched by a factor of 2, reflected over the y-axis, and translated 9 units left

Step-by-step explanation:

The given function is y=\sqrt{-4x-36}

We can rewrite this function by factoring -4 in the radicand to get:

y=\sqrt{-4(x+9)}

We further simplify the square root of 4 to get:

y=2\sqrt{-(x+9)

The parent function is y=\sqrt{x}

When we compare to the parent function, there is a stretch by a factor of 2, reflection over the y-axis, and translation 9 units left

The last option is correct

3 0
3 years ago
Read 2 more answers
Zab is x years old now. What is his age 7 years from now ?​
kakasveta [241]

Answer:

x + 7

Step-by-step explanation:

N/A

3 0
4 years ago
Read 2 more answers
Please help me asap will appreciate it a lot
attashe74 [19]

Answer:

1

Step-by-step explanation:

So for this type of problem we use the formula m= \frac{y_{2}-y_{1}  }{x_{2}-x_{1} } with each variable (besides m which is slope) representing a different coordinate. (e.g. -3 could be y_{2} in this case.) First, let's define which is which:

(3,2): x_{1}, y_{1}

(-2,-3): x_{2}, y_{2}

Now we need to replace the variables with their known values: m=\frac{-3-2}{-2-3}

Next, let's do the subtraction to simplify: m=\frac{-5}{-5}

And we can complete the division (all fractions are division!) to simplify even further: m = 1

Therefore, the slope of the line passing through the points (3,2) and (-2,-3) is 1.

6 0
3 years ago
The scatter plot below shows the number of pizzas sold during weeks when different numbers of coupons were issued. The equation
levacccp [35]

Answer:

94 pizzas will be sold

Step-by-step explanation:

We have to use the equation and replace 15 with x.

x=15

y=3.4x + 43

y=3.4(15) + 43

y=51 + 43

y=94

(15,94)

There will be 94 pizzas sold nightly if 15 coupons were issued.

6 0
3 years ago
Read 2 more answers
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