Please help quickly this is like the last answer for a test so please help quickly

Mathematics

1 answer:

Ganezh [65]3 years ago

3 0

Answer: b

its a 3.5 degree angle it is b

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At the beginning of the year, Zachary had $40 in savings and saved an additional $20 each week thereafter. Isaac started the yea

guajiro [1.7K]

Zachary function:

Z(t) = 40 + 20t

Isaac function:

I(t) = 85 + 11t

Graph each function to see the interval of time when one person has more money than the other.

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3 years ago

Calculus: Help ASAP

wariber [46]

$\bf \displaystyle \int~\cfrac{sec^2(x)}{\sqrt{1+tan(x)}}\cdot dx\\\\
-------------------------------\\\\
u=1+tan(x)\implies \cfrac{du}{dx}=sec^2(x)\implies \cfrac{du}{sec^2(x)}=dx\\\\
-------------------------------\\\\
\displaystyle \int~\cfrac{\underline{sec^2(x)}}{\sqrt{u}}\cdot\cfrac{du}{\underline{sec^2(x)}}\implies \int~\cfrac{1}{\sqrt{u}}\cdot du\implies \int~u^{-\frac{1}{2}}\cdot du
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3 years ago

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Charra [1.4K]

Answer=7/20

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Radical 18 times radical -2

melisa1 [442]

Answer:

Step-by-step explanation:

First, I think you mean square root 18 and square root 2. (Let me know if thats right.)

Thus we have square root -36, which is simplified to 6i (we have to use imaginary numbers)

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3 years ago

William wants to invest $30,000 in a mutual fund.

Natali [406]

Answer:

He will have $39,750 at the end of five years.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

$T = E + P$