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3 years ago

Whats the answer to 9 (-2)??

Mathematics

2 answers:

IgorC [24]3 years ago

7 0

7 is the correct answer ( I believe )

My name is Ann [436]3 years ago

3 0

9 x (-2) = -18

Since there's an even number of negatives in the equation, the answer would also be negative. You solve the rest of it by just doing 2×9. Since 2×9 = 18, and there's one negative in the equation, the answer would be -18

You might be interested in

Calculating cos-1 ( help is gladly appreciated :) )

Alekssandra [29.7K]

Answer:

$\frac{3\pi}{4}$

(Assuming you want your answer in radians)

If you want the answer in degrees just multiply your answer in radians by $\frac{180^\circ}{\pi}$ giving you:

$\frac{3\pi}{4} \cdot \frac{180^\circ}{\pi}=\frac{3(180)}{4}=135^{\circ}$ .

We can do this since $\pi \text{ rad }=180^\circ$ (half the circumference of the unit circle is equivalent to 180 degree rotation).

Step-by-step explanation:

$\cos^{-1}(x)$ is going to output an angle measurement in $[0,\pi]$ .

So we are looking to solve the following equation in that interval:

$\cos(x)=-\frac{\sqrt{2}}{2}$ .

This happens in the second quadrant on the given interval.

The solution to the equation is $\frac{3\pi}{4}$ .

So we are saying that $\cos(\frac{3\pi}{4})=\frac{-\sqrt{2}}{2}$ implies $\cos^{-1}(\frac{-\sqrt{2}}{2})=\frac{3\pi}{4}$ since $\frac{3\pi}{4} \in [0,\pi]$ .

Answer is $\frac{3\pi}{4}$ .

4 0

2 years ago

What kind of triangle is 8,14 and 12 and 25,16,20

dlinn [17]

Answer: A not a triangle

Step-by-step explanation:

3 0

2 years ago

Pls help, u dont have to explain that much

Anettt [7]

Answer:

it will be equal to

$12x {}^{3}$

okay....

Step-by-step explanation:

volume of a cuboid = l × b × h

( where l = length, b = width , h = height )

so volume of given cuboid = ( 3x × 2x × 2x )

hence volume =

${12x}^{3}$

5 0

3 years ago

PLEASEEE HELP ITS FOR A GOOD CAUSE !!

Andrews [41]

Answer:

And what cuase might that be...? Jkjk ofc ill help

Step-by-step explanation:

Amswer is C. im 99 percent sure i did the math and to double check i put it into a site ans it said it was C! Hope this helps! :)

7 0

3 years ago

find the total amount and total interest after eight months if the interest is compounded every four months

Volgvan

The total amount is $ 6050, and the total interest after 8 months is $1050.

What is interest?

Interest is the financial charge for the honor of adopting a plutocrat, generally expressed as a periodic chance rate( APR).
Interest is the quantum of plutocrat a lender or fiscal institution receives for advancing out money. However, you do it in order to achieve that result or maintain that situation, If you do commodity in the interests of a particular result or situation.
There are basically three(3) main types of interest rates the nominal interest rate, the effective rate, and the real interest rate.
The nominal interest of a (one) investment or loan is simply the stated rate on which interest payments are calculated.

Here,

Period per year = 124 = 3

Total amount = amount (1 + periodic rate)period

= $6,050

Total interest = Total amount - amount

= 6050 - 5000

= $1,050

Thus,

The total amount is $ 6050, and the total interest after 8 months is $1050.

Learn more about interest here:

brainly.com/question/25793394

#SPJ4

6 0

1 year ago