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
Trava [24]
3 years ago
14

Is 6 a solution to the quotation 2x squared + 8 equals 80​

Mathematics
2 answers:
Nonamiya [84]3 years ago
8 0

Answer:

Step-by-step explanation:

2x²+8=80

2x²=80-8=72

x²=72/2=36

x=±√36

x=±6

so x=6 is one solution other is x=-6

Umnica [9.8K]3 years ago
3 0
No because 2(6) is 12 and that squared is 144
You might be interested in
A rectangle has an square meters. The width is 1\5 meter. What is the length of the rectangle?
Alecsey [184]

Answer:

The length would be 5 meters

Step-by-step explanation:

To get this value, start with the area formula.

A = LW

Next input the known values for area and width

1 = L1/5

Now multiply each side by 5

5 = L

6 0
3 years ago
Find the complementary angles of the following.
vovikov84 [41]

Answer:

1. 87

A77

B24

C93

D47

E 31

F 48

2. 160

A10

B20

C30

D40

E 50

F 60

3. 68

A851

B295

C302

D574

E 112

F 638

4. 174

A3

B4

C5

D 6

E 7

F 8

5. a

A180-a

B180/2

C 179*a

D 179+a

E 60

F pi

Find the complementary angles of the following.

6. 53

A90

B32

C 25

D 45

E 18

F 37

7. 12

A46

B78

C98

D31

E 52

F 64

8. 73.5

A16.5

B34.2

C29.4

D17.7

E 57.9

F 11.3

9. 23.7

A66.3

B70.1

C42.5

D83.9

E 54.8

F 36.2

10. a

A90/a

Ba-90

Ca/2

D90-a

E 90-2

F a^2

Two of the angles are listed. Find the measure of the third angle in each triangle. Similar to example 6

11. 16,42

A256

B421

C107

D510

E 122

F 329

12. 90, 30

A23

B42

C47

D60

E 71

F 89

13. 43, 118

A12

B34

C19

D57

E 11

F 27

14. 60, 60

A15

B90

C29

D60

E 30

F 45

15. 14, 123

A73

B25

C38

D19

E 43

F 13

16. 68, 86

A45

B56

C26

D19

E 32

F 82

17. 55, 77

A18

B37

C62

D57

E 20

F 48

18. a, (a + 80)

A100 - 2a

B112 - 7a

C182 - 2a

D254 - 5a

E 311 - 3a

F 302 - 1a

19. x, (x + 20)

A189 - 7x

B167 - 1x

C114 - 5x

D160 - 2x

E 124 - 2x

F 142 - 1x

20. m, 2m

A172 - 2m

B187 - 7m

C124 - 4m

D143 - 1m

E 164 - 9m

F 180 - 3m

1. C

2. B

3. E

4. D

5. D

6. F

7. B

8. A

9. A

10. B

11. D

12. A

13. D

14. B

15. A

16. C

17. F

18. A

19. D

20. F

Step-by-step explanation:

6 0
3 years ago
Will give brainliest if correct.
Paul [167]

Answer:

Slope -1/3

Y-Intersept (0,11)

Step-by-step explanation:

The slope can be found next to the x

and for the Y-intersept it is 11 in the y position of the cordinates and 0 is always on the x position. (x,y)

3 0
3 years ago
If two fair dice are rolled, what is the probability that the total showing is either even or less than five?
vampirchik [111]

Answer:

50/50

Step-by-step explanation:

6 0
3 years ago
(BRAINLIST!!!)70 POINTS!!! ASAP Write two different expressions equivalent to 8d - 4) Use factoring for one way​
lisov135 [29]

Answer:

one is using commutative property 4d - 8

another is 2 to power of 4 - 2 to the power of 2

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • The perimeter of a rectangular park is 2.6 miles. the length of the park is 0.8 miles. what is the width of the park
    8·1 answer
  • A study finds a correlation coefficient of r = .32. This number gives you information about which of the following? Group of ans
    15·1 answer
  • I’m confused on this one
    12·1 answer
  • Is 31.669 an integer?
    15·2 answers
  • Is this graph increasing or decreasing
    12·1 answer
  • 4.
    15·2 answers
  • The sales function for a Super Mario Kart Video Game, d(x), after x years is represented by d(x)=30000\left(0.92)^{x}. To the ne
    11·1 answer
  • A rectangular prism has a base area of 2 square feet and a height of 5 feet. What
    12·1 answer
  • 2x - 5 = 23(19) - 56 4x2 + 2(14) = 102/2
    8·1 answer
  • Can someone help me with my geometry
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!