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3 years ago

Help. Math Got Me Super Stumped

Mathematics

2 answers:

Alex3 years ago

7 0

Answer:

x=-1

Step-by-step explanation:

I'm weird and love these types of problems.

Ok first off we need to get x alone. To do that we need to first get rid of the 7.

We can do that by adding it because you have to use the opposite operation to get rid of it.

5x - 7 (+7) = -12 (+7)

See if you add -7 + 7 you get 0 which is why you have to use the opposite.

5x = -5

To get x alone you have to divide 5 because 5 is being multiplied by x.

5x(/5) = -5(/5)

x= -1

So x= -1

If you ever need more help, don't be afraid to reach out. I hope that helps!

Elodia [21]3 years ago

5 0

Answer:

I think it is -1

Step-by-step explanation:

Because -1 x 5 equals -5 and -5 - 7 equals - 12

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Evaluate the following. (iii) sin 30° + tan 40° - cosec 60° / cot 45° + cos 60° - sec 30°

bearhunter [10]

Sin 30 = 1/2

tan 45 = 1

Cosec 60 = 2 / √3 = 2√3 / 3

cot 45 = 1

Cos 60 = 1/2

sec 30 = 2 / √3 = 2√3 / 3

_______________________________

[ 1/2 + 1 - 2√3/3 ] ÷ [ 1 + 1/2 - 2√3/3 ] = 1

The face and denominator of the fraction are exactly the same thus the answer is 1 .

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3 years ago

I need help plz help me

irinina [24]

The answer is A
i think so but i might be wrong
sorry if i am.

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3 years ago

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Which of the following rational expressions has the domain restrictions X = -6 and x = 1?

Tcecarenko [31]

The domain of the function is possible values of independant varaible such that function is defined or have real values.

So the expression

$\frac{(x+2)(x-3)}{(x-1)(x+6)}$

is not defined for x = -6 and for x = 1, as expression becomes undefined for this values of x (Denominator becomes 0).

So answer is,

$\frac{(x+2)(x-3)}{(x-1)(x+6)}$

Option B is correct.

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1 year ago

Suppose that farmer's grew an unexpectedly large number of tomatoes this year. How would this increase in production affect the

MArishka [77]

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Charlotte recorded the number of minutes she spent exercising in the past ten days: 9, 13, 5, 2, 9, 1, 14, 3, 5, 7. Find the med

Nuetrik [128]

Answer:

The median is 7.

Step-by-step explanation:

In order to find the median, you need to ut the numbers in either least to greatest form, or greatest to least (FIRST).

I'm gonna do both as an example.

Greatest to least:

14, 13, 9, 9, 7, 5, 3, 2, 1

Least to greatest:

1, 2, 3, 5, 7, 9, 9, 13, 14

It is REALLY important that you use ALL of the numbers you are given, even if there are two or more of the same number.

The next thing you need to do is find the number that is in the middle.

It will be the same for both least to greatest AND greatest to least.

You can either count one from either side, going in a pattern, OR you can count how many there is, divide it by 2, and whatever answer you get, count that many times over from one side.

In this case, your answer goes like this:

since there are 9 numbers, and 9 is not an even number, you will have only one median. Having 2 medians IS normal and it IS ok.

In this case, you want to go down one number (from 9) and divide that. So you do 8 divided by 2, which is 4. Count that many times over and you have your answer, 7.

I hope this helped you!

Have a great dayyyy

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3 years ago