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chubhunter [2.5K]
3 years ago
12

Determine if the work for each problem below is correct.Correct any errors and explain your thinking

Mathematics
1 answer:
hjlf3 years ago
8 0

Answer:

this is correct

Step-by-step explanation:

9.5*13=123.5

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Umm is this right or wrong and if it's wrong can you tell me the right answer?
MA_775_DIABLO [31]

Answer:

30

Step-by-step explanation:

d=√(24²+18²)=6√(4²+3²)=6√(16+9)=6√(25)=6×5=30

3 0
3 years ago
What is 31 billion in scientific notation?
zepelin [54]

Answer:

(3.10 x 10^10)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can someone please answer all of these questions for me I have an F and I need to bring it up because my mom is getting on my la
svetoff [14.1K]

Answer:

See below

Step-by-step explanation:

Q7

  • g(s) = 2s + 3,
  • g(-2) = 2(-2) + 3 = -4 + 3 = -1

Q8

  • h(x) = x² - x + 7
  • h(4) = 4² - 4 + 7 = 16 + 3 = 19

Q9

Basic channels = $32.50, each premium channel = $4.95

a) <u>Equation:</u>

  • c = 4.95p + 32.50

b) <u>Table:</u>

  • p = 0 ⇒ c = 32.50
  • p = 1 ⇒ c = 4.95 + 32.50 = 37.45
  • p = 2 ⇒ c = 2*4.95 + 32.50 = 42.40
  • p = 3 ⇒ c = 3*4.95 + 32.50 = 47.35
  • p = 4 ⇒ c = 4*4.95 + 32.50 = 52.30

<em>The graph is attached</em>

6 0
3 years ago
What is an equation of the line that passes through the points (4,-6) and has a slope of -3
lions [1.4K]

Answer:

Step-by-step explanation:

point slope form

y + 6 = -3(x - 4)

point slope to y-intercept

y + 6 = -3x + 12

y = -3x + 6

3 0
3 years ago
HELP ME PLEASE!
Delicious77 [7]
Sounds as tho' you have an isosceles triangle (a triangle with 2 equal sides).  If this triangle is also a right triangle (with one 90-degree angle), then the side lengths MUST satisfy the Pythagorean Theorem.

Let's see whether they do.

8^2 + 8^2 = 11^2  ???
 64    + 64 = 121?  NO.  This is not a right triangle.

If you really do have 2 sides that are both of length 8, and you really do have a right triangle, then:

8^2 + 8^2 = d^2, where d=hypotenuse.  Then 64+64 = d^2, and 

d = sqrt(128) = sqrt(8*16) = 4sqrt(8) = 4*2*sqrt(2) = 8sqrt(2) = 11.3.

11 is close to 11.3, but still, this triangle cannot really have 2 sides of length 8 and one side of length 11.
7 0
3 years ago
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