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1 year ago

Factor the given polynomial completely. a²-4a-32

Mathematics

2 answers:

MrRa [10]1 year ago

8 0

Step-by-step explanation:

a²-8a+4a-32

a(a-8)+4(a-8)

(a+4)(a-8)

zhuklara [117]1 year ago

7 0

Answer:

(x + 4)(x - 8).

Step-by-step explanation:

a²-4a-32

We need 2 numbers whose product is -32 and whose sum is -4.

They are +4 and -8, so the factors are:

(x + 4)(x - 8).

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Anna35 [415]

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3 years ago

Mel is 3 years older than Rahfat and Aurelio is twice as old as Mel. The sum of their ages is 57. How old is Mel.

julia-pushkina [17]

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3 years ago

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write the formula of the parabola that has x-intercepts (1.3,0) and (-1.3,0), and y-intercept (0,169)

snow_lady [41]

Answer:

y= 169 − $100^{2}$

Step-by-step explanation:

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3 years ago

What are the minimum, first quartile, median, third quartile, and maximum of the data set? 2, 13, 17, 14, 9, 3, 16, 12

Alex777 [14]

So before anything, rearrange the data so that it's in ascending order: {2,3,9,12,13,14,16,17}

Next, the minimum and maximum are as they seem: the smallest and largest numbers in the data. Looking at our data, 2 is our minimum and 17 is our maximum.

Next, to find the median, find the number that is in the middle of the data set. If there isn't one number in the middle, find the average of the two middle numbers to get your median:

$\{2,3,9,\overbrace{\boxed{12,13,}}^{\textsf{middle numbers}}14,16,17\}\\\\\frac{12+13}{2}\\\\\frac{25}{2}\\\\12.5$

The median is 12.5.

Next, to find the first quartile, or the lower quartile, find the "median" of the numbers to the left of the median.

$\overbrace{\{2,\boxed{3,9,}12,}^{\textsf{left of median}}13,14,16,17\}\\\\\frac{3+9}{2}\\\\\frac{12}{2}\\\\6$

The first quartile is 6.

Next, to find the third quartile, or the upper quartile, find the "median" of the numbers to the right of the median.

$\{2,3,9,12,\overbrace{13,\boxed{14,16,}17\}}^{\textsf{right of median}}\\\\\frac{14+16}{2}\\\\\frac{30}{2}\\\\15$

The third quartile is 15.

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3 years ago

The ratio of the number of inches a tomato plant grows to the number of weeks is 18 to 8 which rate of growth is equivalent?

Novay_Z [31]

Answer:

Pretty sure this it

It grows 2 1/4 inches per week.

Step-by-step explanation:

18:8= 18/8= 2 1/4

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3 years ago

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