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2 years ago

HELPPP pleaseee ! This is almost all my grade .

Mathematics

2 answers:

maria [59]2 years ago

8 0

Answer:

Yeah I need a picture

Step-by-step explanation:

There no picture sorry can't answer this question

dexar [7]2 years ago

5 0

What is it? I can’t see if there’s a picture

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PLEASE HELP!!!!Choose the equation below that is equivalent to 4(x - 7) - 2(x + 1) = -10

Ipatiy [6.2K]

Answer:

$-2(x-7)+(x+1)=5$

Step-by-step explanation:

We can divide both sides by -2 to obtain

$-2(x-7)+(x+1)=5$

8 0

1 year ago

Which of the following is a solution of x^2 + 2x + 4?

Kaylis [27]

Answer:

$\displaystyle x_1=-1+\sqrt{3}i$

$\displaystyle x_2=-1-\sqrt{3}i$

Step-by-step explanation:

<u>Second-Degree Equation</u>

The second-degree equation or quadratic equation has the general form

$ax^2+bx+c=0$

where a is non-zero.

There are many methods to solve the equation, one of the most-used is by using the solver formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

The equation of the question has the values: a=1, b=2, c=4, thus the values of x are

$\displaystyle x=\frac{-2\pm \sqrt{2^2-4\cdot 1\cdot 4}}{2\cdot 1}$

$\displaystyle x=\frac{-2\pm \sqrt{-12}}{2}$

Since the square root has a negative argument, both solutions for x are imaginary or complex. Simplifying the radical

$\displaystyle x=\frac{-2\pm 2\sqrt{-3}}{2}=-1\pm\sqrt{3}i$

The solutions are

$\displaystyle x_1=-1+\sqrt{3}i$

$\displaystyle x_2=-1-\sqrt{3}i$

7 0

2 years ago

12dollers for 3 staeks 28 for 7staeks

Lyrx [107]

The unit rate would be:
4 dollars for 1 steak

8 0

2 years ago

Select all that apply. Several pennies are tossed in the air. Twelve land heads up and fifteen land tails up. Which of the follo

jeka94

Answer:

12 heads to 15 tails

Step-by-step explanation:

Heads : Tails

12 : 15

4 : 5

4 0

3 years ago

Read 2 more answers

An overdraft is a check that cannot be covered by funds in the account.

Degger [83]

Answer:

True

Step-by-step explanation:

7 0

3 years ago