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Semmy [17]
3 years ago
15

Help please. thank you

Mathematics
2 answers:
DedPeter [7]3 years ago
7 0

Answer:

im in high school what u need

Step-by-step explanation:

tatyana61 [14]3 years ago
6 0
I think it D cause 30(cos(30x)+14=-16
Your dividing by 30
your 180 (which is degrees) is
radians. As the cosine function is periodic with period 2 we get

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What are the factors of 4x^2+13x+3?
Katyanochek1 [597]
<span>4x</span>² <span>+ 13x + 3=
4x</span>² + 12x + x + 3 =
4x(x+3) + (x+3) = 
(4x+1)(x+3)
4 0
3 years ago
Round 146,273,011 to the nearest hundred thousand.<br><br> i need help
loris [4]

Answer:

146,300,000

Step-by-step explanation:

146,273,011

<u>The hundred thousand place is 100,000</u>

<u />

<u>Step 1:  Round</u>

146,273,011

<em>146,300,000</em>

<em />

Answer:  146,300,000

6 0
3 years ago
Is there negative correlation, or no correlation between the day and the sales amount?
FrozenT [24]

Answer:

A: no correlation

Step-by-step explanation:

Hopefully this helps!

3 0
3 years ago
How can complex fractions be used to solve problems involving ratios
strojnjashka [21]
When you have ratios, and some unknowns, you can create complex fractions from them. Bring them to the same denominator, and solve for x.

Example - we have this proportion:
2-x
5-45
And we can change it into fraction:
\frac{2}{5}=\frac{x}{45}

\frac{2*9}{5*9}=\frac{x}{45}

\frac{18}{45}=\frac{x}{45}
18=x

In case of more complex fractions it may come in handy.
5 0
3 years ago
Element X is a radioactive isotope such that every 20 years, its mass
faust18 [17]

Answer:

12.1

Step-by-step explanation:

y=a(1/2)^t/h

270=410(1/2)^t/20

Divide both sides by 410

0.6585365854 = (1/2)^t/20

Log Both sides

Log(0.6585365854) / Log(1/2)

.6026645024= t/20

20 x .6026645024 = t

12.05329005 to the nearest tenth is 12.1 = t

3 0
3 years ago
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