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
WARRIOR [948]
3 years ago
12

Evaluate 8x-6 when x=7

Mathematics
2 answers:
V125BC [204]3 years ago
7 0

Answer:

50

Step-by-step explanation:

Wittaler [7]3 years ago
3 0

Answer:

50

Step-by-step explanation:

Substitute 7 for x into the expression 8x−6 and then simplify using order of operations.

8(7)−6

56−6

50

You might be interested in
Find area round to nearest tength I’ll mark brainest
Vadim26 [7]

Answer:

12.5 sq. units

Step-by-step explanation:

Divide the blue triangle into two smaller triangles.

The length of their common base = 5 units

The height of the <u>yellow</u> triangle = 2 units

The height of the <u>red</u> triangle = 3 units

The area of the yellow triangle

= (5×2)÷2

= 5 sq. units

The area of the red triangle

= (5×3)÷2

= 7.5 sq. units

The total area

= 5+7.5

= 12.5 sq. units

6 0
3 years ago
Which of the following sets of data will have the smallest Standard Deviation?
uranmaximum [27]

Answer: D

Step-by-step explanation:

Standard Deviation σ2 =

Σ(xi - μ)2/N

=(1 - 5.3)2 + ... + (9 - 5.3)2/10

=68.1/10

= 6.81

σ = √6.81

= 2.60959767014

B) σ2 =

Σ(xi - μ)2/N

=(3 - 61.7)2 + ... + (99 - 61.7)2/10

=58414.1/10

= 5841.41

σ = √5841.41

= 76.429117488036

C) (1 - 11.4)2 + ... + (1 - 11.4)2/10

=8758.4/10

= 875.84

σ = √875.84

= 29.59459410095

D) (79 - 79)2 + ... + (79 - 79)2/10

=0/10

= 0

σ = √0

= 0

I hope this helps, mark as Brainliest please.

6 0
3 years ago
1.Eric earned a 12 correct points out of 15 total points on his math quiz.
Sholpan [36]

Answer:

Jamie, because 9 out of 10 is a 90 and 12 out of 15 is an 80

4 0
3 years ago
Which expressions is equivalent ?
agasfer [191]
<h3>3 Answers: Choice C, Choice D, Choice F</h3>

What these expressions have in common is that their exponents multiply to 16

  • (-4)*(-4) = 16 for choice C
  • (-2)*(-8) = 16 for choice D
  • 8*2 = 16 for choice F

The rule used here is (a^b)^c = a^(b*c). We multiply the exponents and keep the base the same.

7 0
3 years ago
ABC is a right-angled triangle.
Amiraneli [1.4K]

Answer:

14.5

Step-by-step explanation:

The pythagoreom theorum shows a^2 + b^2 = c^2. Therefore, c^2 - a^2 = b^2

256 - 44.89 = 211.11

The square root of 211.11 rounded to the first decimal place is 14.5

8 0
3 years ago
Other questions:
  • Which expressions show repeated multiplication? Check all that apply.
    9·2 answers
  • I confuses some one help me​
    11·2 answers
  • How to verify frac(sec theta/ csc theta- cot theta -frac(sectheta/csc theta +cot theta = 2csc theta
    7·1 answer
  • The function f(x) = 4x + 30 represents the length of a rectangle. The function g(x) = x − 1 represents the width of the rectangl
    11·2 answers
  • If Sophia's score was 76 points, what was her percentile rank in the class?
    5·1 answer
  • Ike plans to save the same amount in the 12th month as in each of the other months.
    12·1 answer
  • PLEASE HELPP!!! (look at picture)
    10·1 answer
  • Given that a = -2 and b = 7 ,evaluate the following algebraic expression <br><br> (1) a(b2 -a)
    9·2 answers
  • The outdoor temperature is 4 degrees below 0, or
    11·1 answer
  • What happens when you reflect an object over intersecting line( combination of reflection)?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!