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2 years ago

In the set of scores: 14, 17, 10, 22, 19, 24, 8, 12, and 19, the Q2 is?

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

8 0

Answer:

Step 1: rerrange the data

8 , 10, 12, 14, 17, 19, 19, 22, 24

Q2 is the median
see that the middle number is 17

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Please help me with algebra part B and C. attachment below. Will mark as brainslist. 25 points.

miv72 [106K]

Answer:

C. $(-7x+60)(x+4)$

Step-by-step explanation:

Consider the expression $-7x^2+32x+240.$

First, note that

$a=-7\\ \\b=32\\ \\c=240$

Find the discriminant

$D=b^2-4ac=32^2-4\cdot (-7)\cdot 240=1,024+6,720=7,744\\ \\\sqrt{D}=\sqrt{7,744}=88$

Now,

$x_1=\dfrac{-b+\sqrt{D}}{2a}=\dfrac{-32+88}{2\cdot (-7)}=-4\\ \\x_2=\dfrac{-b-\sqrt{D}}{2a}=\dfrac{-32-88}{2\cdot (-7)}=\dfrac{60}{7}$

Write the factored form:

$-7x^2+32x+240=-7(x-(-4))\left(x-\dfrac{60}{7}\right)=(x+4)(-7x+60)$

8 0

3 years ago

Is (3,2) a solution of -8x-2y<6

BartSMP [9]

Answer:

yes

Step-by-step explanation:

-8x-2y<6

put in x and y and see if it is less than 6

-8(3) -2(2) <6

-24 -4 <6

-28 <6

yes

it is a solution

8 0

3 years ago

Solve usuing synthetic divison and list the steps/explain answer.<br> (7m^(3)+16m^(2)-7m+27)-:(m+3)

zloy xaker [14]

Answer:

7m² - 5m + 8 + 3/(m+3)

Step-by-step explanation:

7m³+16m²-7m+27

(7m³+21m²-5m²-15m+8m+24+3)/(m+3)

[7m²(m+3) - 5m(m+3) + 8(m+3) + 3]/(m+3)

7m² - 5m + 8 + 3/(m+3)

6 0

3 years ago

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7x + 2y = 24<br>8x + 2y = 30

bagirrra123 [75]

(8x + 2y) - (7x + 2y) = 30 - 24

X = 6

5 0

3 years ago

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Emma bought three cans of tennis balls for $4 each. Sales tax for all three cans was $0.95. Wh

LiRa [457]

Answer:

4(3)+0.95=X

Step-by-step explanation:

6 0

2 years ago

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