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3 years ago

2 + 6x = 1 − x what is it

Mathematics

2 answers:

Naily [24]3 years ago

8 0

Answer: X= -7

Step-by-step explanation:

shusha [124]3 years ago

7 0

Answer:

x=-1/7

use inverse operations to get 7x=-1 and then divide both sides by 7

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Define the domain and range of each function. GRAPH IS BELOW :)

ch4aika [34]

Answer:

Domain: ( Positive infinity, Negative Infinity)

Range: (-3, Positive Infinity )

Step-by-step explanation:

3 0

2 years ago

Of the 190 students in an elementary school, 57 students had perfect attendance during the second semester. What percent attenda

romanna [79]

Answer:

The percent attendance for that semester was 30%.

Step-by-step explanation:

In this problem, out of 190 students, only 57 students had perfect attendance. When a question says something like this, then it means that you are going to use division. You are going to divide 57 by 190.

57 ÷ 190 = 0.3

Now, multiply 0.3 by 100 to get the percentage.

0.3 * 100 = 30

So, the percentage of the perfect attendance is 30%.

6 0

3 years ago

Alexey is baking 2 batches of cookies. Since he tends to be quite forgetful, there's a good chance he might burn

bonufazy [111]

Answer:

Funny story actually, i actually was making cookies at my house once and i put the cookie dough in the microwave for two minutes which resulted in the plate exploding: that was my mothers plate that she cared about alot. I threw the shattered plate in a garbage bag and i was originally planning on burying it but if i did that then my dog would have found it and ate it but unfortunately enough i disposed of it and my found out about like a month later.

Step-by-step explanation:

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2 years ago

What is the value of x? 120 - units 113 units 2/3 units 32 units

rewona [7]

Answer:

candice

Step-by-step explanation: dic fit in yo mouth

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3 years ago

I need help!! please, you don’t even have to do it all just explain to me how to do the first one I’ll catch on

lisov135 [29]

Hi there!

What we need to know:

The three main trigonometric ratios are sine, cosine and tangent:

$\displaystyle sin\theta=\frac{opposite}{hypotenuse}$ $\displaystyle cos\theta=\frac{adjacent}{hypotenuse}$ $\displaystyle tan\theta=\frac{opposite}{adjacent}$

"Opposite" refers to the side opposite the angle that is not the hypotenuse.

"Hypotenuse" refers to the side opposite the right angle of a right triangle.

"Adjacent" refers to the side next to the angle that is not the hypotenuse.

"θ" is read as "theta". It just represents the angle.

Keep in mind that these three ratios only apply to right triangles.

You can use the mnemonic "soh-cah-toa" to help you remember these ratios.

First question

For the first question, we're given the angle with a measure of 56 degrees and the length of the hypotenuse. We must calculate a, which represents the side adjacent to the given angle.

Given the hypotenuse and the adjacent side, we know that we must use the cosine ratio:

$\displaystyle cos\theta=\frac{adjacent}{hypotenuse}$

Plug in the given information:

$\displaystyle cos56=\frac{a}{13}$