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vova2212 [387]
3 years ago
15

Find the solutions to the equation below . Check all that apply . X^2-4=0

Mathematics
2 answers:
KatRina [158]3 years ago
5 0

Answer:

there are 2 solutions in total

Step-by-step explanation:

x^2-4=0

x^2=4

x= ±2<em>i</em>

KatRina [158]3 years ago
4 0

Answer:

x=±2

Step-by-step explanation:

x²-4=0

x²-2²=0

(x+2)(x-2)=0

either x+2=0,x=-2

or x-2=0,x=2

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balu736 [363]

Answer:

it is 6

Step-by-step explanation:

3 0
3 years ago
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What is the answer for 6r^2-10r-24
FrozenT [24]
6r^2-10r-24 =0\\ \\a=6, \ b= -10, \ c= -24 \\ \\ \Delta =b^2-4ac =  (-10)^2 -4\cdot6\cdot  (-24) =  100+576 = 676 \\ \\ r_{1}=\frac{-b-\sqrt{\Delta }}{2a}=\frac{10-\sqrt{676}}{2\cdot 6 }=\frac{ 10-26}{12}= \frac{-16}{12}=- \frac{4}{3} \\ \\r_{2}=\frac{-b+\sqrt{\Delta }}{2a}= \frac{10+\sqrt{676}}{2\cdot 6 }=\frac{ 10+26}{12}= \frac{36}{12}=3\\ \\   6r^2-10r-24  = 6(r+\frac{4}{3})(r-3)=(6r+8)(r-3)\\ \\ \\ Answer : \ 6r^2-10r-24 =(6r-8)(r-3)
8 0
4 years ago
A minor league baseball pitcher threw 18 strikes in his first 40 pitches for a strike percentage of 45%. He wants to raise this
Bezzdna [24]

Answer:

The total number of strikes the pitcher will throw throughout the game.

Step-by-step explanation:

A.The number of consecutive strikes the pitcher must throw to raise his percentage to 60%.

B. The total number of strikes the pitcher will throw throughout the game.

C.The total number of balls the pitcher will throw throughout the game.

D. The number of balls that the pitcher has already thrown.

Given expression:

x+18x+40

In the expression, x represent the total number of strikes the pitcher will throw throughout the game.

The correct answer is A. The total number of strikes the pitcher will throw throughout the game.

4 0
4 years ago
Sammies room is 20 feet long and 12 feet wide her parents want to cover the floor with tiles. If they choose to use tiles with w
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Find the area of the room by multiplying the length by the width:

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Find the area of the tile: 2x 2 = 4 square feet.

To find the number of tiles divide the area of the room by the area of a tile:

240/4 = 60

They will need 60 tiles.

5 0
3 years ago
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Faith bought 16 chicken wings for $4. What was the cost of the wings in dollars per<br> wing?
Dmitry [639]

.25 for wing
.25x16=4
6 0
3 years ago
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