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Jobisdone [24]
3 years ago
11

subtracting 2x^2+4x-5 from 7x^2+x+9 results in a polynomial. after substracting 4x^2 - 3x from this polynomial, the difference i

s ________?​

Mathematics
1 answer:
Alecsey [184]3 years ago
3 0

Answer:

The difference is 14.

Step-by-step explanation:

We are to subtract 3x² + 4x - 5 from 7x² + x + 9.

⇒ 7x² + x + 9 - (3x² + 4x - 5)

= 7x² + x + 9 - 3x² - 4x + 5

= (7 - 3)x² + (1 - 4)x + 9 + 5

= 4x² - 3x + 14

Now we subract 4x² - 3x from the above polynomial.

⇒ 4x² - 3x + 14 - (4x² - 3x)

= 4x² - 3x + 14 - 4x² + 3x

= (4 - 4)x² + (3 - 3)x + 14

= 14 which is the required difference.

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Anna11 [10]

Answer: 9516793/9765625

Step-by-step explanation:

We can subtract the probability none of them have been vaccinated from 1.

If 52% of people are vaccinated, then 48% of people are not vaccinated.

Thus, the probability is 1-(0.48)^{5} =\frac{9516793}{9765625}

7 0
2 years ago
PLEASE HELP ASAP!!!
Sonbull [250]
2x^2 - 7x - 6 = 0

x1 = \frac{- b  +  \sqrt{ {b}^{2} - 4ac }}{2a}
x2 = \frac{- b   -   \sqrt{ {b}^{2} - 4ac }}{2a}
where a=2
where b=-7
where c=-6

solve for x1 and x2

x1=4.21
x2=-0.71
6 0
3 years ago
The perimeter of this isosceles triangle is 22 cm. If one side is 6 cm, what are the possible lengths of the other two sides? Pa
3241004551 [841]
We know that

<span>the isosceles triangle has two equal sides
</span>
<span>let's analyze two cases
</span>
first case
perimeter=22 cm
<span>let's suppose that the known side of 6 cm is one of the two equal sides
</span>perimeter=6+6+x
22=6+6+x-----> x=22-12----> x=10 cm

answer first case
<span>the possible lengths of the other two sides are
</span>6 cm 
10 cm

second case
let's suppose that the known side of 6 cm is the side that is not equal
perimeter=22 cm
perimeter=6+x+x
22=6+x+x----> 2x=22-6----> 2x=16-----> x=8 cm


answer second case
the possible lengths of the other two sides are
8 cm 
8 cm

4 0
3 years ago
Ermining the Measure of an Interior Angle
CaHeK987 [17]
I think it’s 70 degrees
8 0
3 years ago
Read 2 more answers
the area of a trapezoid is 780 cm squared. the shorter base is 48 cm and the height is 15 cm. Find the length of the other base
Anna35 [415]
If you multiply 48cm times 15cm,you get 720cm.Which would leave you with 60 left because 780 minus 720 equals 60.The height of the other base is 60cm.
6 0
3 years ago
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