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frozen [14]
2 years ago
8

Help me out here guys

Mathematics
1 answer:
kvasek [131]2 years ago
3 0
D.

f(x) can be written as (x+2)(x-2)(x-1)
by using difference of two squares to expand x^2 - 4 whch yields 3 x intercepts

similarly, k(x) can be written as
x(x+5)(x-5) which also yields 3
x intercepts (0,-5, and 5)
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Hitman42 [59]

Answer:

9

Step-by-step explanation:

sum of the terms

mean=------------------------------

number of the terms

6 0
3 years ago
Tanx cosx = 0
shtirl [24]
You're almost finished.

(sin/cos) times cos = 0

Look at the left side.  You could write it as (sin x cos) / cos = 0
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Then what do you have left ? . . .  <u>sin(x) = 0</u>       Do I need to finish this for you ?
5 0
4 years ago
Trigonometry pile up. Anyone mind helping me out with this one?
S_A_V [24]
cos34^o=\frac{8}{a};\ cos34^o\approx0.829\\\\\frac{8}{a}=0.829\to a\approx9.65\\\\9.65-2.5+3.6=10.75\\\\cos11^o=\frac{b}{10.75};\ cos11^o\approx0.981\\\\\frac{b}{10.75}=0.981\to b\approx10.55\\\\10.55-2.1+2.9=11.35\\\\c^2+3.8^2=11.35^2\\\\c^2=11.35^2-3.8^2\\\\c\approx10.69

10.69-3.2=7.49\\\\tan42^o=\frac{d}{7.49};\ tan42^o\approx0.9\\\\\frac{d}{7.49}=0.9\to d\approx6.74\\\\sin37^o=\frac{6.74}{e};\ sin37^o\approx0.602\\\\\frac{6.74}{e}=0.602\to e\approx11.2\\\\11.2+4.3=15.5\\\\sin53^o=\frac{f}{15.5};\ sin53^o\approx0.8\\\\\frac{f}{15.5}=0.8\to f\approx12.4

12.4-2.2=10.2\\\\g^2=10.2^2+1.7^2\to g\approx10.34\\\\cos21^o=\frac{10.34}{h};\ cos21^o\approx0.934\\\\\frac{10.34}{h}=0.934\to h=11.07\\\\11.07+1.7=12.77\\\\sin71^o=\frac{x}{12.77};\ sin71^o\approx0.946\\\\\frac{x}{12.77}=0.946\to x\approx12.1\ (cm)\leftarrow Answer

4 0
3 years ago
NEED HELP ASAP! WILL MARK BRAINLIEST!
kenny6666 [7]

Answer:

y=2x-20

Step-by-step explanation:

For perpendicular lines, find the opposite reciprocal of the original slope.  The opposite reciprocal of the slope of this line (-1/2) is positive 2

7 0
3 years ago
Please help its urgent! 30 points!
Savatey [412]

Step-by-step explanation:

I think the answer is A.

5 0
4 years ago
Read 2 more answers
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