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Keith_Richards [23]
2 years ago
7

I really need help on this question.!

Mathematics
1 answer:
IrinaVladis [17]2 years ago
4 0

Answer:

b = 135 \\ a + c = 45(ie \: 180 - 135)  \\ a =  \frac{45}{2}  \\ a = 22.5

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3 years ago
No one is answering i posted this question 2 times, this is my 3rd time please answer.
Dahasolnce [82]

Answer:

13

Step-by-step explanation:

First, fill in 3 boxes of the table using the given information (blue numbers on the attached table)

"Of the 32 students that have a cell phone, 19 students do not have a tablet."

The top row of the table is students who have a cell phone.  Therefore, place 19 in the box in this row that is in the "no tablet" column.

"Of the 70 students that have a tablet, 57 students do not have a cell phone."

The first column of the table is students who have a tablet.  Therefore, place 57 in the box in the 2nd row of this column.

"11 students do not have a cell phone or a tablet."

Find the "no cell phone" row and the "no tablet" column and place 11 in the box that coincides.

We can calculate the blank totals using addition (shown by green numbers on the attached table)

  • Total students with no cell phone = 57 + 11 = 68
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To calculate the number of students who have a cell phone AND a tablet:

⇒ Total students with a cell phone <em>minus</em> students with a cell phone but no tablet

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4 0
2 years ago
What is the value of x in 16 to the 2nd power = x
Zepler [3.9K]
16^2 is 16•16 so x would equal 256
4 0
3 years ago
Read 2 more answers
What is the domain of the function y=in(x+2) x&lt;-2 x&gt;-2 x&lt;2 x&gt; x&lt;-2 x&gt;-2 x&lt;2 x&gt;2
aev [14]

For this case we must find the domain of the following function:

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In this case, the argument of the expression must be greater than 0 to be defined.

x + 2> 0\\x> -2

Thus, the domain of the function is given by all the values of x greater than -2.

Answer:

Domain: x> -2

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prisoha [69]

we start by opening the brackets so it will be -25 plus 15 v is equals to 115. negative times a negative is a positive so -5 times -3 we we have gotten positive 15v there I hope you understood so our new equation is -25 + 15v is equals to 115 collect the like terms 15v is equals to 115 + 25 15 v is equals to 140 divide both sides by 15 so v is equals to 9 and 1/3

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3 years ago
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