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PolarNik [594]
3 years ago
5

If c, m, and n are integers, which of the following are NOT possible values of m and n for the equation below? (Equation in pic)

Mathematics
1 answer:
kakasveta [241]3 years ago
6 0

Answer: C. m = -2; n = -2

have:

x² + 4x + c = (x + m)(x + n)

⇔ x² + 4x + c = x² + (m + n)x + mn

⇒ m + n = 4

    mn = c

=>  M=-2, n=-2 arent possible

Step-by-step explanation:

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Please help me asap!!
luda_lava [24]

Answer:

1 square unit

Step-by-step explanation:

its easy

1 * 1 = 1

4 0
3 years ago
Simplify <br> 7.2x10^3/1.8x10^7
spayn [35]

To simplify and solve this equation we must follow PEMDAS.

P=Parentheses

E=Exponents

M=Multiplication (from left to right)

D=Division (from left to right)

A=Addition

S=Substraction

We begin the process.

10^3=1000

10^7=10000000

New equation looks like this:

7.2*1000/1.8*10000000

We then multiply

7.2*1000= 7200

7200/1.8=4000

4000*10000000= 40000000000

<em>So our final answer is 40000000000.</em>

Hope this helps!

P.S. I forgot this was scientific notation and I solved it a different way. But both ways give the same answer. Let me know if you want the other method.


3 0
3 years ago
Parker rolled a number cube 50 times the three appeared 12 times what is the experimental probability of rolling a 3
horsena [70]
12/50 is the probability of rolling a 3
12/50= He has a 24% chance of rolling a three
3 0
3 years ago
the concrete slab under a garage measures 38 feet by 37 feet and is 6 inches thick. if concrete costs 150$ for a cubic yard, how
Natalka [10]
STEP 1
find cubic feet; multiply the three dimensions together; be sure to use the same unit of measure for all three dimensions: 6 inches is equal to 1/2'.

= 38' * 37' * 1/2'
multiply

= 703 cubic feet


STEP 2
divide cubic feet in step 1 by number of cubic feet in a cubic yard

27 cubic feet= 1 cubic yard

= 703 ÷ 27
= 26.037 cubic yards


STEP 3
multiply cubic yards in step 2 by cost per cubic yard

= 26.037 * $150
= $3,905.555
= $3,906 rounded to nearest dollar


ANSWER: It will cost $3,906 (rounded to nearest dollar).

Hope this helps! :)
3 0
3 years ago
Read 2 more answers
If the door to the library is at (2, 4), the door to the
grin007 [14]

Answer:

Step-by-step explanation:

6 0
3 years ago
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