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Gemiola [76]
3 years ago
7

Which equations are true for x = –2 and x = 2? Check all that apply.

Mathematics
1 answer:
4vir4ik [10]3 years ago
4 0
А. х²-4=0; х²=4; х=±2, true. B. x²=-4; there is no solution. C. 3x²+12=0; 3x²=-12; x²=-4; there is no solution. D. 4x²=16; x²=4; x=±2, true. E. 2(x-2)²=0; 2(x²-4x+4)=0; 2x²-8x+8=0; x²-4x+4=0; x1=2; x2=2. False. The answer: A, D.
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Four tickets to the baseball game and 4 meal tickets cost $144.
Doss [256]

Answer: $108

Step-by-step explanation:

what is 144 / 4 ? 36 = one meal ticket

what is 36 x 3 ? 108

each game ticket costs 108 dollars

6 0
2 years ago
Integers that are not whole numbers
zubka84 [21]
Integers that are not whole numbers are like -5 -8 -7 and etc...
8 0
3 years ago
How much is f(10) if f=x^2-2
dangina [55]

To find this value, simply substitute the number 10 in for x in your equation:

f(x) = x^2 - 2

f(10) = 10^2 - 2 = \boxed{98}

The answer is 98.

8 0
3 years ago
Mr. Mole's burrow lies 5 meters below the ground. He started digging his way deeper into the ground, descending 3 meters each mi
Sedbober [7]

Answer:

The slope of the equation is -3.          

Step-by-step explanation:

Given : Mr. Mole's burrow lies 5 meters below the ground. He started digging his way deeper into the ground, descending 3 meters each minute.

To find : What is the slope ?

Solution :

Let x be the number of minutes taken to dig the ground.

He started digging his way deeper into the ground, descending 3 meters each minute i.e. '-3x'

Let y is the total distance travel to dig the ground.

Mr. Mole's burrow lies 5 meters below the ground.

The equation form is y=-3x-5

Comparing with general slope form i.e. y=mx+c where m is the slope.

The slope of the equation is -3.

5 0
3 years ago
Read 2 more answers
Calculate the fraction:<br> 5x6/7<br><br> Plssss help solve...
Elena-2011 [213]

Answer:

4 2/ 7

Step-by-step explanation:

using a = a/1, convert the expression into fraction

5/1 x 6/7 to multiply the fractions, multiply the numerators and denominators separately

5x6/1x7 = 30/7 alternative form 4 2/7, 4.285714

6 0
3 years ago
Read 2 more answers
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