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Angelina_Jolie [31]
3 years ago
8

4. Rephrase the following statements in standard "if.. then" form:

Mathematics
1 answer:
Firdavs [7]3 years ago
8 0

Answer:

See step-by-step explanation.

Step-by-step explanation:

a) If the old TV breaks down then we are buying a new TV.

b) If you have a good credit score in the United States, then you obtain a loan.

c) If you don't make me a better offer then I will keep my current job.

d) If we observe faster than light travel then we would question relativity theory.

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Simplify the complex fraction.<br> 50-<br> 4<br> 25
Blizzard [7]

Answer:

50-4/25 is 49 21/25

Step-by-step explanation:

7 0
2 years ago
Solve: 3(2x -5) = 6x -15
Debora [2.8K]

Answer:

x = all real values

Step-by-step explanation:

3(2x -5) = 6x -15

Distribute

3*2x - 3*5 = 6x-15

6x -15 = 6x -15

Subtract 6x from each side

6x-15-6x = 6x-15-6x

-15 = -15

This is always true so there are infinite solutions

x = all real values

3 0
3 years ago
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Find the slope and y intercept of 2y +8 = 6x + 4
cricket20 [7]
Slope (3) y intercept (0,-2)
8 0
3 years ago
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For the function w, w(3) = -2 and w(-2) = 8. If y = w(x), what is the value of y when<br> x = -2?
sasho [114]

Answer:

6

Step-by-step explanation:

i took the test on edge

3 0
3 years ago
The altitude of a triangle is 1cm shorter than the base. If the area of the triangle is 15cm2, calculate the altitude.
WITCHER [35]

Answer:

5 cm

Step-by-step explanation:

We khow that the altitude of this triangle is 1cm shorter than the base

  • Let H be our altitude and B our base and A the area of the triangle
  • A= (B*H)/2 ⇒ 15=(B*H)/2
  • H is 1cm shorter than B ⇒ B=H+1
  • H*(H+1)/2=15 ⇒ H*(H+1)=30⇒ H²+H=30⇒H²+H-30+0

that's a quadratic equation . Let's calculate the dicriminant .

Let Δ be the dicriminant

  • a=1
  • b=1
  • c= -30
  • Δ=b²-4*a*c = 1²-4*1*(-30)=1+4*30=121≥0
  • Δ≥0⇔ that we have two solutions x and y
  • x= (-1-\sqrt{121})/2= (-1-11)/2= -6
  • y= (-1+\sqrt{121})/2= 10/2 = 5

We have a negative value and a positive one

The altitude is a distance so it can't be negative

H= 5cm

6 0
3 years ago
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