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QveST [7]
3 years ago
11

A shelf is built on a wall, as shown below. What is the value of x?

Mathematics
1 answer:
sp2606 [1]3 years ago
8 0

Answer:

Step-by-step explanation:

Given:

A shelf is built on a wall. The angles of the triangle are given as (x + 3)°, (2x - 18)° and 90°

We need to determine the value of x.

Value of x:

By triangle sum property, the angles in a triangle always add up to 180°

Thus, we have;

Simplifying, we get;

Subtracting both sides by 75, we get;

Dividing both sides of the equation by 3, we get;

Thus, the value of x is 35.

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Find the value of k
steposvetlana [31]

Answer:

k=3

Step-by-step explanation:

The general form of the line is y=mx+b. So, the value of the slope must be 12. In this case:

4k = 12\\\frac{4k}{4} =\frac{12}{4} \\k=3

6 0
3 years ago
Easy Bucks... <br>For what values of y does the binomial 3y−5 belong to the interval (−1; 1)?
kati45 [8]

3y-5 = -1

3y=4

y = 4/3


3y-5 = 1

3y = 6

y = 2


y must be between 4/3  and 2

y must be between 1  1/3 and 2

3 0
4 years ago
Read 2 more answers
4. 6t -5+5t = 105 (t = 4; t = 7;t = 10)
prohojiy [21]

Answer:

t = 10.

Step-by-step explanation:

We can combine like terms, getting 11t - 5 = 105.

Add both sides by 5, getting 11t = 105 + 5 = 110.

We can then divide both sides by 11, getting t = 10.

4 0
3 years ago
If you multiply 2/3 * 6/10, would the product be more than 6/10 or less than 6/10?
Gwar [14]

Answer:

Less than.

Step-by-step explanation:

I have included the explanation in bullet points so it is easier to understand.

We don't even need to solve the problem in order to find out.

  • We know that any number times one is itself
  • We know that any number times less than one would be less than itself.
  • In order to get a product more than 6/10 we would need to multiply it by something more than 1.
  • 2/3 is not more than one, which means the product would be less than 6/10

Hope this helps!

--Appleπ101

4 0
3 years ago
Express 10cm as percentage of 50cm
tino4ka555 [31]
I think that 10 is 20% of 50
4 0
2 years ago
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