2 years ago

Solve the equation 2x^2 + 4x - 39 to the nearest tenth.

Mathematics

1 answer:

Virty [35]2 years ago

8 0

Answer:

cant be solved, when you try to you get

-1+78 = 77

which is

77 = 77

1=1

So cannot be factored

Step-by-step explanation:

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5M + 10 = 3M - 4

andrezito [222]

Answer:

The answer is D

Step-by-step explanation:

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3 years ago

What is the circumference and the area of this circle

alexira [117]

<h2>circumference = 50.24cm</h2><h2>area = 200.96cm²</h2>

Step-by-step explanation:

radius (r) = 8cm

circumference = 2π×r

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= 50.24cm

area = π × r²

= 3.14 × 8 × 8

= 200.96cm²

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2 years ago

The square of the sum of 7 times x and 3 divided by 4 times the difference of x and 1

4vir4ik [10]

I believe the 3rd answer down if the information you provided is correct

Squaring the sum on the top, rules out 1 and 2 (not squaring the 7 only)
then 4 times the difference. so I believe 4 (x-1) on the bottom.

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3 years ago

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BigorU [14]

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7 0

3 years ago

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Which represents the solution(s) of the graphed system of equations, y = x2 – 2x and y = –2x – 1? (1, –1) (0, 0) and (0, –1) (0,

olganol [36]

ANSWER

No solution

EXPLANATION

The first equation is

$y = {x}^{2} - 2x$

and the second equation is

$y = - 2x - 1$

We equate the two equations to obtain;

${x}^{2} - 2x = - 2x - 1$

This implies that

${x}^{2} = - 2x + 2x - 1$

${x}^{2} = - 1$

There is no real number whose square is -1.

Therefore, the equation has no solution.

6 0

3 years ago

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