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3 years ago

What are the solutions of x^2+5x=2? Check all that apply

Mathematics

2 answers:

Rudik [331]3 years ago

6 0

See the attachment..

astraxan [27]3 years ago

3 0

X^2+5x=2
you then solve by completing the square using the formula (b/2)^2 in order to create the new term. Solve for x by using this term to complete the square.
Your answer is then
x=-5/2+-√33/2

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S_A_V [24]

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3 years ago

Read 2 more answers

Find the interest earned and the future value of an annuity with weekly payments of $400 for three years into an account that pa

qaws [65]

Answer:

the interest earned= 93.401

and the future value of an annuity= 493.401

Step-by-step explanation:

Given Data:

Interest rate= 7%

time,t = 3 years

weekly payment, P= 400

At the end of 3 years, final investment A= ?

n= 52 as it is weekly

As per the interest formula

A= P(1+r/n)^nt

Putting value in above equation

= $400\left(1+\frac{0.07}{52}\right)^{156}$

= 493.401

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= 493.401-400

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7 0

3 years ago

How do I solve this problem?

cluponka [151]

$\text {Area of a triangle = } \dfrac{1}{2} \times \text{base} \times \text{height}$

$\text {Area of a triangle = }$

$\dfrac{1}{2} \times \dfrac{2x^2 - x - 1}{x-3} \times \dfrac{2x^2 +2x - 24}{2x + 1}$

$= \dfrac{1}{2} \times \dfrac{(x-1)(2x+1)}{x-3} \times \dfrac{2(x+4)(x-3)}{2x + 1}$

$= (x -1 )(x +4)$

5 0

4 years ago

Which of the following is a solution to the equation y=-1/4x +8 O (10,8) 0 (48) O (49) O (-8.-10)

Lyrx [107]

Answer:

Step-by-step explanation:

The last one -- D -- is the closest correct answer. None of them, however, is right.

y = -1/4 x + 8 Let x = - 8

y = -1/4 * - 8 + 8 The standard rule is starting from the left, do the multiplication first then do the addition

- 1/4 * - 8 will first of all give you a positive result. When 2 minuses are multiplied they give a positive answer.

-1/4 * - 8 = 1/4 * 8

1/4 * 8 = 2

y = 2 + 8

y = 10

So the ordered pair (-8 , 10) is the answer.

6 0

3 years ago