All categories

3 years ago

What number must you add to complete the square? x2 + 14x = -5

2 answers:

7 0

44 is your answer

<span>x2 + 14x = -5
</span><span>
must add 44 </span><span>to complete the square

</span>x2 + 14x +5 + 44
=x2 + 14x +49
=(x+7)^2

denis-greek [22]3 years ago

6 0

U take half of the x term and square it....then add to both sides

14/2 = 7.......7^2 = 49...so u add 49 to both sides

You might be interested in

A tv costs £800 plus VAT at 20% what is the total cost of the tv?

slamgirl [31]

hello friend ☺

Given :

TV cost = 800 £

VAT = 20 %

Amount of VAT

= 20% of 800

= 800 × 20 /100

= 160 £

So Total cost of TV

= original price + VAT

= 800 + 160

= 960 £

Thanks ❤

5 0

3 years ago

Solve the equation, keeping the value for x as an improper fraction. 23x = − 12x + 5 1.Isolate the variable by adding 12x to bot

kogti [31]

Answer:

$x=\frac{30}{7}$

Step-by-step explanation:

We have been given an equation $\frac{2}{3}x=-\frac{1}{2}x+5$ . We are asked to solve our given equation.

First of all, we will add $\frac{1}{2}x$ on both sides of equation to separate x variable on one side of equation.

$\frac{2}{3}x+\frac{1}{2}x=-\frac{1}{2}x+\frac{1}{2}x+5$

$\frac{2}{3}x+\frac{1}{2}x=5$

Now, we will make a common denominator.

$\frac{2*2}{3*2}x+\frac{1*3}{2*3}x=5$

$\frac{4}{6}x+\frac{3}{6}x=5$

Add numerators:

$\frac{4+3}{6}x=5$

$\frac{7}{6}x=5$

Upon multiply both sides of our equation by $\frac{6}{7}$ , we will get:

$\frac{6}{7}*\frac{7}{6}x=5*\frac{6}{7}$

$x=\frac{5*6}{7}$

$x=\frac{30}{7}$

Therefore, the solution for our given equation is $x=\frac{30}{7}$ .

5 0

3 years ago

Read 2 more answers

Tyra’s father is two years more than three times as old as she is. If Tyra is nine years old, how old is her father?

Marianna [84]

Answer:

A - 29

Step-by-step explanation:

she is Nine so

her dad will be

2+9×3

2+27

5 0

3 years ago

Read 2 more answers

Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea

hjlf

Answer:

120 into a third and divide and the answer

Step-by-step explanation:

160

7 0

3 years ago

If you toss two pennies what are the chances of getting two heads?

Norma-Jean [14]

Answer:

50/50 chance i guessing

If theres 2 pennies

<h2>Hope this helps :)</h2>

4 0

3 years ago