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2 years ago

(can someone help??) −12x+8=6x−12−13/2x

Mathematics

1 answer:

worty [1.4K]2 years ago

4 0

Answer:

Step-by-step explanation:

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If Millie invests $35,000 in a savings account that earns 3.5% interest, how much interest will she earn after 3 years?

deff fn [24]

Answer:

$3,675

Step-by-step explanation:

Simple Interest = principal x rate x time

so, simple interest = $35,000 x 3.5/100 x 3

Therefore, the answer is $3,675

Hooe this helped :)

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2 years ago

harmaine spent a total of $20 at the grocery store. Of this amount, $9 she spent on fruit. What percentage of the total did she

zheka24 [161]

Answer:

45%

Step-by-step explanation:

First, let's set up a fraction of how much money she spent for fruit out of the total amount of money she spent.

$\frac{9}{20}$

For a percentage, we need a fraction out of 100. To do this, we can multiply the fraction by 5/5 (5*20=100). Notice we can only do this since 5/5 is equivalent to 1, so you are technically multiplying the fraction by 1.

$\frac{9}{20}*\frac{5}{5}=\frac{45}{100}$

A percentage is just the numerator of a number over 100 therefore it is equal to...

45%

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2 years ago

The probability of guessing on four true and false questions and getting all four questions correct

gulaghasi [49]

Answer:

50-50

Step-by-step explanation:

If yoiu have 4 and divide it b

3 0

2 years ago

If sin(x) = 5/13, and x is in quadrant 1, then tan(x/2) equals what?

Rufina [12.5K]

$x$ is in quadrant I, so $0$ , which means $0$ , so $\dfrac x2$ belongs to the same quadrant.

Now,

$\tan^2\dfrac x2=\dfrac{\sin^2\frac x2}{\cos^2\frac x2}=\dfrac{\frac{1-\cos x}2}{\frac{1+\cos x}2}=\dfrac{1-\cos x}{1+\cos x}$

Since $\sin x=\dfrac5{13}$ , it follows that

$\cos^2x=1-\sin^2x\implies \cos x=\pm\sqrt{1-\left(\dfrac5{13}\right)^2}=\pm\dfrac{12}{13}$

Since $x$ belongs to the first quadrant, you take the positive root ( $\cos x>0$ for $x$ in quadrant I). Then

$\tan\dfrac x2=\pm\sqrt{\dfrac{1-\frac{12}{13}}{1+\frac{12}{13}}}$

$\tan x$ is also positive for $x$ in quadrant I, so you take the positive root again. You're left with

$\tan\dfrac x2=\dfrac15$

4 0

3 years ago

Is 4, 6, 7 a pythagorean triple

madam [21]

Answer:

Yes

Step-by-step explanation:

Hope this helps!

Good Luck!

7 0

2 years ago

Read 2 more answers