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3 years ago

13

What is the answer from "x=2" and graph each line and name two point on the line

1 answer:

Elena L [17]3 years ago

4 0

i dont know srry

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slava [35]

For a system of equations such as this, add both of the equations together. The d values will cancel each other out, making 2e=-4. This means that e=-2. If you plug this into one of the equations, you will have d + (-2) = 1. Isolate the variable by adding -2 to both sides: d=3. Written in the format described above (d,e), your answer is (3, -2).

6 0

2 years ago

Simplify r2 –2r3 + 3r2

kiruha [24]

Final answer: -4r × 12

7 0

3 years ago

The sum of 18 and a number

Kryger [21]

Answer:

The expression you are looking for is: 18+x

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Benjamin threw a rock straight up from a cliff that was 48 ft above the water. If the height of the rock h, in feet, after t s

fomenos

Answer: It will take 4 seconds for the rock to hit the water.

Step-by-step explanation:

Given : Benjamin threw a rock straight up from a cliff that was 48 ft above the water.

If the height of the rock h, in feet, after t seconds is given by the equation

$h = -16 t^2+ 52 t + 48$

To find : Time taken for the rock to hit the water.

When rock hit the water height becomes zero , i.e. put h = 0 , we get

$-16 t^2+ 52 t + 48 =0$

Divide equation by 2 , we get

$-8t^2+26t+24=0$

The Laue of x for ax²+bx+c =0 is $x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

So , $t=\frac{-26\pm\sqrt{(26^{2}-4(-8)(24))}}{2(-8)}$

$t=\dfrac{-26\pm 38}{-16}\\\\ t=-\dfrac{-26+38}{-16}=-0.75\ \ t=\dfrac{-26-38}{-16}=4$

Since t cannot be negative , so t= 4

Hence, it will take 4 seconds for the rock to hit the water.

5 0

2 years ago

BELL RINGER - 12/16/2020

user100 [1]

Answer:

6% chance

Step-by-step explanation:

12+19+14+15 = 60 60 divided by 100 = 0.6 = 6%

4 0

2 years ago

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