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
Misha Larkins [42]
3 years ago
15

What is the value of x, when x2 + 5 = 21? A) 2 or -2 B) 4 or -4 C) 5.5 or -5.5 D) 8 or -8

Mathematics
2 answers:
lord [1]3 years ago
4 0
X would be equal to 8.
notka56 [123]3 years ago
4 0

Answer:

I'm positive that the

answer is B 8

You might be interested in
What is <br><img src="https://tex.z-dn.net/?f=%20%20%20cot%280.349%20%29" id="TexFormula1" title=" cot(0.349 )" alt=" cot(0.
AnnZ [28]
Cot(0.349)= 2.74804 is your answer
8 0
3 years ago
a line is perpendicular to y - 5 = -1/4(x + 8) and goes through the point (-1,2). What is the lines y-intercept?
lisabon 2012 [21]

Answer:

y = 4x + 6

Step-by-step explanation:

Turn the equation we are given into slope-intercept form.

y - 5 = -1/4(x + 8)

y - 5 = -1/4x - 2

y = -1/4x + 3

The slope of a perpendicular line is the opposite reciprocal of the original line.

-1/4 -> 4/1 -> 4

Find the new y-intercept using the point given.

y = 4x + b

2 = 4(-1) + b

2 = -4 + b

6 = b

Fill in everything we solved for.

y = 4x + 6

Best of Luck!

8 0
3 years ago
Will Mark Brainliest
GaryK [48]

The correct answer is D

5 0
3 years ago
Read 2 more answers
Please need HELP with A, B, and C!!
Simora [160]

Answer:

as in pic below

Step-by-step explanation:

7 0
2 years ago
Any kind of clue please need help on this
Nikolay [14]

Similar polygons are made through scaling either by stretching or squeezing the sides all by a common ratio. Here, the size changes. Congruent polygons are made by shifting or reflecting their position. Here, the size does not change.

Choice A has a dilution (or squeezing) and a translation (shifting). That makes similar polygons.

Choice B has a rotation. Nope.

Choice C has a shifting and a reflection. Nope.

Choice D has a rotation and shifting. Nope.


Thus choice A is best.

7 0
3 years ago
Other questions:
  • A book is in the shape of a right rectangular prism.
    14·1 answer
  • Please help me find the answer ASAP. Thanks
    10·1 answer
  • Find the highest common factor of 32 and 80
    13·2 answers
  • If two polygons are similar then the corresponding sides must be?
    15·2 answers
  • 20 points! HELP AND ILL MARK BRAINLIEST!
    8·1 answer
  • Sasha wants to join a local gym. Stay Fit charges $30 each month and $140 initiation fee. Beat The Bulge charges $50 each month
    12·1 answer
  • If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5),
    13·2 answers
  • Which table represents a quadratic function?
    8·1 answer
  • Pleaseee helpp don’t understand!!
    7·1 answer
  • Help pleasseeee<br> If f(x)=3x^2-7x find f(-2)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!