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anygoal [31]
3 years ago
15

Find the y-intercept of f(x) = 3x^2 + 6x

Mathematics
2 answers:
Step2247 [10]3 years ago
4 0

Answ3r:

81x^2

Step-by-step explanation

I think

balandron [24]3 years ago
4 0

Answer:

x=0

Hope this helped!!!! :)

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At an Italian store the price for T-shirt is 55 euros what is the price in US dollars
Zinaida [17]

Answer:

the current converson rate for euros to dollars is $1 (USD) = 0.91 Euros

so 55 euros would equal about 60.60 USD...

in other words, that better be one nice shirt

Step-by-step explanation:

8 0
3 years ago
Rafael can run 5 laps around the track in 16 minutes. If he runs at the same rate, which of the following proportions can be use
kari74 [83]
The best answer is D) 5/16=20/m
3 0
3 years ago
If θ is an angle in standard position whose terminal side passes through (3, 4), evaluate tan(1/2)θ.
aleksandr82 [10.1K]

The tangent half angle formula, one of several, is

\tan \dfrac a 2 = \dfrac{1 - \cos a}{\sin a}

We have θ is opposite 4 in the 3/4/5 right triangle so

\cos \theta = \dfrac{3}{5}

\sin \theta = \dfrac{4}{5}

\tan \dfrac{\theta}{2} = \dfrac{1 - 3/5}{4/5} = \dfrac{5-3}{4}=\dfrac{1}{2}

Answer: 1/2

This is actually pretty deep.  It says half the big acute angle in the 3/4/5 triangle is the small diagonal angle of the 1x2 rectangle.   Similarly, the small acute angle in 3/4/5 triangle is twice the small diagonal angle of the 1x3 rectangle.

7 0
3 years ago
Solve the inequality<br> 3/10 ≥ k - 3/5
balandron [24]

Answer:

The answer to your question is    k \leq  \frac{9}{10}   or    (-∞ , 9/10]                                      

Step-by-step explanation:

To solve inequality is similar to solve and equation, we just need to find the values of "k" in order than the inequality be true.

                                         k - \frac{3}{5} \leq  \frac{3}{10}

Solve for "k"

                                        k \leq  \frac{3}{10} + \frac{3}{5}

                                        k \leq  \frac{3}{10} + \frac{6}{10}

                                        k \leq  \frac{9}{10}

Then the answer is

                               k \leq  \frac{9}{10}   or    (-∞ , 9/10]                                      

8 0
3 years ago
An ant looks up to the top of a tree at an angle of elevation of 40 degrees. If the ant is 30 feet away from the base of the tre
hodyreva [135]
Tangent (40) = tree height / 30 feet
tree height  =  tangent (40) * 30 feet
tree height  =  0.8391 * 30
tree height  =  25.173 feet


3 0
3 years ago
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