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Vera_Pavlovna [14]
3 years ago
7

PLEASE HELP WITH THIS MATH QUESTION!!..

Mathematics
1 answer:
JulijaS [17]3 years ago
8 0

Answer:

907

Step-by-step explanation:

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Solve the system of equations by subsitution.<br> b = 4a +2<br> 12a - 3b = -6
Vladimir [108]

Answer:

infinite solution

Step-by-step explanation:

hello

we substitute b = 4a + 2 in the second expression

12a -3*(4a+2) = -6

<=> 12a -12a -6 = -6

<=> -6 = -6

which is always true

so there is infinite solution

hope this helps

5 0
3 years ago
The measure of the smaller angle betwwn the hands of a clock at 5:00
GREYUIT [131]

Answer:

The angle between the hands of a clock at 5:00 is 150

Step-by-step explanation:

hope this helped

5 0
3 years ago
Help plz...............
Charra [1.4K]

Step-by-step explanation:

2πr

2x 3.14 x 8.1 = 50.22in

3 0
3 years ago
Isaiah and his children went into a grocery store and where they sell apples for $0.50 each and peaches for $1.50 each. Isaiah h
pychu [463]

Answer:

8x0.50=4

15-4=9

9/1.50= 6

6 peaches

8 0
3 years ago
Read 2 more answers
Can somebody help me with this?
icang [17]

We are given polynomial: 5x^3+8x^2-7x-6.

We need to explain why the binomial (x + 2) IS a factor of this polynomial expression and  why the binomial (x + 1) IS NOT a factor of this polynomial expression.

Let us set first factor equal to 0 and solve for x.

x+2=0

x=-2.

Plugging x=-2 in given polynomial, we get

5(-2)^3+8(-2)^2-7(-2)-6 = 5(-8) +8(4)+14-6

= -40 +32+14-6

=0

<em>Because x=-2 gives 0 on plugging in given polynomial, so it's factor of given polynomial expression.</em>

Now, let us check second factor x+1=0

x=-1.

Plugging x=-1 in given polynomial, we get

5(-1)^3+8(-1)^2-7(-1)-6 = 5(-1) +8(1)+7-6

=-5+8+7-6.

= -4.

<em>Because x=-1 doesn't gives 0 on plugging in given polynomial, so it's not a factor of given polynomial expression.</em>

7 0
2 years ago
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