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Stels [109]
3 years ago
15

Does this mean multiplication? 4(-9)

Mathematics
2 answers:
larisa86 [58]3 years ago
3 0

Answer:

Yes, it does mean multiplication.

Blababa [14]3 years ago
3 0
Yes. the answer will be -36. hope it helps you!
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Ms. Scarborough solved x^2+6x-7 by completing the square in the table below. Identify the missing steps.
dybincka [34]
Answer 1: Move the -7 over to the right side of the problem.
Answer 2: x^2 + 6x + 9 = 7+9
Answer 3: (x+3)^2 = 16
Answer 4: Use the square root for both sides of the equation.
Answer 5: x = -3 <span>± 4 = 1, -7 --> x = 1, -7</span>
8 0
3 years ago
Alan is 5 years older than Bob. Bob is twice as old as Cindy. All their ages add up to 20. What are their ages?
Llana [10]
We can use a variable equation to solve this. Let A represent alan's age, B represent bob's age, and C represent Cindy's age. So Bob's age would be Alan's age - 5, or a -5 = B. Then Bob's age would be double Cindy's age, so that means 2 multiplied by Cindy's age = Bob's age, or 2C = B. Your two equations are: 

A - 5 = B
2C = B

Also a third equation that helps is A + B + C = 20.

Finally, here are the ages. 
Alan = 11 years old
Bob = 6 years old
Cindy = 3 years old.

PS: Sorry, I'm not that good at explaining things, but here are the answers
6 0
3 years ago
A fundraiser lottery draws two winners each month from 50 tickets numbered
Alina [70]

Answer:

1/49 of a chance

Step-by-step explanation:

7 0
3 years ago
Contains the point (-1, 2) and is parallel to<br> x – 2y = -3
ivanzaharov [21]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange x - 2y = - 3 into this form

Subtract x from both sides

- 2y = - x - 3 ( divide all terms by - 2 )

y = \frac{1}{2} x + \frac{3}{2} ← in slope- intercept form

with m = \frac{1}{2}

• Parallel lines have equal slopes, thus

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute (- 1, 2) into the partial equation

2 = - \frac{1}{2} + c ⇒ c = 2 + \frac{1}{2} = \frac{5}{2}

y = \frac{1}{2} x + \frac{5}{2} ← in slope- intercept form

Multiply through by 2

2y = x + 5 ( subtract 2y from both sides )

0 = x - 2y + 5 ( subtract 5 from both sides )

- 5 = x - 2y, thus

x - 2y = - 5 ← in standard form

4 0
3 years ago
Can anyone help me figure out the 2 square 3 is? and show step by step. Thank you
taurus [48]

like 3 squared? or 2 cubed?

8 0
3 years ago
Read 2 more answers
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