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Dafna11 [192]
3 years ago
12

–7 – 4p - (-5) Hurry plzzz

Mathematics
1 answer:
posledela3 years ago
4 0

Answer:

-2 - 4p

Step-by-step explanation:

combine like terms

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Send help , 20 points !!<br> what is 1 and 2/9 minus 3 and 1/3
astraxan [27]

Answer:

-1 and 8/9

Step-by-step explanation:

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What is the total of the interior angles of a nonagon?
Naddik [55]

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the answer is 1260 degrees

pleases mark me the brainliest!

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In ΔTUV, t = 410 cm, ∠U=27° and ∠V=78°. Find the length of v, to the nearest 10th of a centimeter.
telo118 [61]

Answer:

v \approx 415.2\,cm

Step-by-step explanation:

The angle T is:

\angle T = 180^{\circ} - 27^{\circ} - 78^{\circ}

\angle T = 75^{\circ}

Now, the length of v is determine by the Law of Sines:

\frac{410\,cm}{\sin 75^{\circ}} = \frac{v}{\sin 78^{\circ}}

v = (410\,cm)\cdot \left(\frac{\sin 78^{\circ}}{\sin 75^{\circ}} \right)

v \approx 415.2\,cm

6 0
3 years ago
Agent Hunt transferred classified files from the CIA mainframe onto his flash drive. The drive had some files on it before the t
andreyandreev [35.5K]

Part a.

The drive had some files before the transfer. We don't know the number of megabytes already on the drive, so we call it x. x is the number of megabytes on the flash drive before Agent Hunt started the transfer.

He transferred files at a rate of 4.4 megabytes per second for 32 seconds. That gives a total of 4.4 Mb/sec * 32 sec = 140.8 transferred megabytes.

He ended up with 384 megabytes.

x + 140.8 = 384

Now we can solve for x, the number of megabytes originally on the flash drive.

x = 384 - 140.8

x = 243.2

The flash drive has 243.2 megabytes when the transfer began.

Part a. Answer: 243.2 megabytes

Part b.

The total capacity if the flash drive is 1000 megabytes. He already had 243.2 megabytes on it before this transfer. 1000 Mb - 243.2 Mb = 756.8 megabytes

The flash drive has capacity for an additional 756.8 megabytes when he started the transfer. The rate of transfer is 4.4 megabytes/second.

756.8/4.4 = 172

Part b. Answer: 172 seconds

6 0
3 years ago
Solve the equation x^2+6x= -11/4
xxTIMURxx [149]

Answer:

Step-by-step explanation:

First, move the -11/4 to the other side, so the expression can equal 0.

x^2+6x+11/4=0

To make the equation easier to work with, multiply both sides by 4, cancelling out the fraction.

4x^2+24x+11=0

There are many ways to solve a quadratic equation (factoring, quadratic formula, completing the square).

Solving this equation by factoring is the easiest. Factoring with a leading coefficient greater than one can be difficult and there are many ways to accomplish it. The way I'm going to do it is to first find the factors of 4x^2 and then the factors of 11. And then multiply across, add the middle terms (derived from multiplying) and try to make it equal 24x.

4x^2:      24x         11:

2x         22x          11

2x           2x            1

           24x (works)

I'll then take the factors diagonal. (2x+1)(2x+11)=0

So x=-\frac{1}{2}, -\frac{11}{2}

8 0
2 years ago
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