1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
devlian [24]
3 years ago
5

Use completing the square to solve the equation x2+16x=−44 . First determine the number you must add to both sides of the equati

on. What is the correct answer? 64;−8±25⎯⎯√ 44;−8±45⎯⎯√ 256;−8±25⎯⎯√ 64;8±20⎯⎯⎯⎯√
Mathematics
1 answer:
lilavasa [31]3 years ago
4 0

Answer:

We will add 64 to both sides.

x=8±√20

Step-by-step explanation:

Here we are given the equation:

x^{2}+16x=-44

Now we take half of the coefficient of x and add it to x.

Coefficient of x is 16, half of 16 is 8.

Also we add square of 8 to both sides.

So new equation becomes:

x^{2}+16x+64=-44+64

Completing the square:

(x+8)^{2}=20

NOw let us  simplify it to get the value of x.

Taking square root on both sides:

x+8=+/-\sqrt{20}

Bringing 8 to the right side:

x=8±√20

You might be interested in
Juanita begins to factor an expression as shown.
WARRIOR [948]

Answer:

(x + 6)(x - 3)

Step-by-step explanation:

6 0
3 years ago
What is the 3rd term in the sequence?​
makvit [3.9K]

Answer:

6

Step-by-step explanation:

To find the third term substitute n = 3 into the n th term formula

a(3) = \frac{3}{2}(-2)^{3-1}

      = \frac{3}{2}(-2)^{2}

      = \frac{3}{2} × 4 = 6

4 0
3 years ago
1 -3,45<br> Rational or irrational
Naddik [55]

Answer: rational

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction. Hence 1-3.45 = - 2.45 which is - 49/20 as a fraction

6 0
3 years ago
Read 2 more answers
The principal of a large high school wants to learn about student opinion regarding remote learning versus in person learning. E
jasenka [17]

Answer:

Step-by-step explanation:

the students that are in the survey are in it because they like the subject, rather than picking students from both types of groups, the ones that aren't doing remote learning and the ones that are doing remote learning.

6 0
3 years ago
Slope of the line (15,20),(-1,11)
masya89 [10]

Answer:

Slope, Angle, & Distance:

Slope: 0.5625

The slope of the line connecting (15, 20) and (-1, 11) is 0.5625

Slope (m): 0.5625

Angle (θ): 29.3578°

Distance: 18.3576

Δx: 16

Δy: 9

Slope Intercept Form:

(y = mx + b)

y = 0.5625x + 11.5625

Step-by-step explanation:

Steps to Find Slope

Start with the slope formula

m=

(y2 - y1)

(x2 - x1)

Substitute point values in the formula

m=

(11 - 20)

(-1 - 15)

Simplify each side of the equation

m=

(11 - 20)

(-1 - 15)

=

-9

-16

Solve for slope (m)

m=0.5625

<h2><em><u>Brainliest?</u></em></h2>
7 0
2 years ago
Other questions:
  • If Y is directly proportional to X² and y=21 when x=2, find the value of y when X=4.
    15·2 answers
  • Derrick will need $39,500 in 10 years for college tuition. How much should his parents invest now at 9.5% annual interest, compo
    6·1 answer
  • The circumference of a circle is 60π cm. What is the radius of the circle
    10·1 answer
  • What is 4 over 2 as a fraction
    13·2 answers
  • anonymous anonymous 3 years ago On October 2,1991 the Japanese yen was worth .0075 united states dollars. at that time, how much
    9·1 answer
  • What is the equation in point slope form of the line that passes through the point (−1, −3) and has a slope of 4?
    7·1 answer
  • 10(g+5)=2(g+9). <br> please help
    9·1 answer
  • What fraction is equal to the decimal 0.137? Brainliest to the right answer
    7·2 answers
  • Which transformations will map octagon PQRSTVWZ onto itself?
    5·1 answer
  • The chart below lists the original and sale prices of items at a clothing store.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!