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
SCORPION-xisa [38]
3 years ago
13

If x2 - 4 = 45, then x could be equal to

Mathematics
2 answers:
Andreyy893 years ago
8 0
X could be equal to 24.5
vovangra [49]3 years ago
7 0
Hi there!

To find x, we need to simplify. 

x^2 -4 = 45
x^2 = 49
sqrt(49) = 7

So, x = 7. 

Hope this helps!
You might be interested in
Can one of y’all help me with this pls
Dafna11 [192]

Answer:

d. 42

Step-by-step explanation:

PEDMAS

We do brackets first, so:

4 + 4 = 8

Then multiplication,

5 x 8 = 40

Then addition

40 + 2 = 42

6 0
3 years ago
Read 2 more answers
The value of 46,395 in 4
Cerrena [4.2K]
The value of 4 is in the 10,000 place. :)
3 0
3 years ago
Read 2 more answers
Don’t undersatnd please help
Ludmilka [50]
The inequality of this question would be 4

3 0
3 years ago
Please help me, will mark brainliest for correct answers.....
Alexandra [31]

Answer:

1. B) 5.7

2. A) 12

3. A) 11.4

4. A) 5.7

5. A) 16.2

6. A) 11.2

7. No, they do not form a right triangle

8. Yes, they do form a right triangle

Step-by-step explanation:

Extra tip: The hypotenuse has to be less than both sides added together, but cannot be more than either of the sides alone.

1.

16² + b² = 17²

256 + b² = 289

256 - 256 + b² = 289 - 256

b² = 33

√b² = √33

b = 5.74 or 5.7

2.

16² + b² = 20²

256 + b² = 400

256 - 256 + b² = 400 - 256

b² = 144

√b² = √144

b = 12

3.

7² + 9² = c²

49 + 81 = c²

130 = c²

√130 = √c²

11.40 or 11.4 = c

4.

7² + b² = 9²

49 + b² = 81

49 - 49 + b² = 81 - 49

b² = 32

√b² = √32

b = 5.65 or 5.7

5.

a² + 5² = 17²

a² + 25 = 289

a² + 25 - 25 = 289 - 25

a² = 264

√a² = √264

a = 16.24 or 16.2

6.

10² + b² = 15²

100 + b² = 225

100 - 100 + b² = 225 - 100

b² = 125

√b² = √125

b = 11.18 or 11.2

7.

15² + 8² = 16²

225 + 64 = 256

289 ≠ 256

8.

5² + 12² = 13²

25 + 144 = 169

169 = 169

8 0
3 years ago
There are 12 chocolate chip cookies in an assortment of 48 cookies. What percent of the cookies are chocolate chip?
Annette [7]

Answer: 20 Chocolate Chips

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • There are 76 boys in a sophomore class of 165 find the ratio
    5·1 answer
  • A ship is sailing on the sea. It travels 50 miles at 60° to the horizontal. Then the ship travels 90 miles at 30° to the horizon
    10·1 answer
  • Find the product.<br> (-2x^2)^3 * 3x
    9·2 answers
  • Each of the digits 7, 5, 8, 9 and 4 is used only one to form a three digit integer and a two digit integer. If the sum of the in
    7·1 answer
  • A truck can be rented from Company A for ​$150 a day plus ​$0.30 per mile. Company B charges ​$70 a day plus ​$0.50 per mile to
    6·1 answer
  • What's 4x+2y=10<br><br> X-y=13
    10·1 answer
  • An equation and the first step in its solution are shown.
    15·2 answers
  • What is the solution to the equation 4+ 5 = 3-1t+5
    12·1 answer
  • Values of 1/64 check all that apply
    12·1 answer
  • Simplify b^10/b^2<br><br> A. b^5<br><br> B. b^-5<br><br> C. b^8<br><br> D. b^-8
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!