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sergeinik [125]
3 years ago
11

What is the value of x

Mathematics
2 answers:
harkovskaia [24]3 years ago
7 0
Answer: x=37.8, you can solve by writing a proportion

Basile [38]3 years ago
7 0

Answer:

x = 37.8

31.5/15=2.1

2.1 x 18=37.8

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3. What can you use to measure area? Include examples please
kirza4 [7]
The formula for area is length x width
So there is a rectangle with a length of 5 and a width of 9. To find the area you must multiply 5 and 9, which is 45. That's your area.
Now say you have a triangle. That triangle has a length of 46 and a height of 99. Again, l x w. 46 x 99 =4554.
Any other questions, let me know.
3 0
3 years ago
10b + 18 &lt; 2(4b+2)<br> Need held
strojnjashka [21]

Answer:

Step-by-step explanation:

10b +18 <2(4b +2)

10b +18 <8b +4

10 b - 8b <4 - 18

2b <-16

b <-16:2

b <-8

4 0
3 years ago
Find the value of tan30+cot30+sin60​
Aliun [14]

Hello!

This is a problem about relating values of the Unit Circle.

First, we need to figure out the specific "points" of each angle measure of 30 and 60.

For the angle measure 30, the point will be (\frac{\sqrt{3}}{2},\frac{1}{2}).

For the angle measure 60, the point will be (\frac{1}{2},\frac{\sqrt{3}}{2}).

The tangent value of a point will be its y value over its x value.

\frac{\frac{1}{2}}{\frac{\sqrt{3}}{2}}=\frac{1}{2}*\frac{2}{\sqrt{3}}=\frac{1}{\sqrt{3}}=\frac{\sqrt{3}}{3}

The cotangent value of a point will be the reciprocal of the tangent value, which we found previously.

\frac{3}{\sqrt{3}}=\frac{3\sqrt{3}}{3}=\sqrt{3}

The sine value of a point will be the y value of the point.

\frac{\sqrt{3}}{2}

So the values we have so far are \frac{\sqrt{3}}{3}+\sqrt{3}+\frac{\sqrt{3}}{2}

Now we have to find the LCD to add these together, which in this case would be 6.

\frac{2\sqrt{3}}{6}+\frac{6\sqrt{3}}{6}+\frac{3\sqrt{3}}{6}

Which adds up to \frac{11\sqrt{3}}{6}, which is in simplest radical form.

Hope this helps!

8 0
3 years ago
I need help please. ​
dangina [55]

Answer:

87,025

Step-by-step explanation:

17550-20525. just subtract

8 0
4 years ago
Which product is equivalent to 25x2 – 16?
inna [77]

Answer:

The correct answer would be 34

Step-by-step explanation:

When solving an expression, we would first solve the operator with the highest precedence. In mathematics, there are four basic operators. Addition, subtraction, multiplication and division. The precedence of Division and multiplication is higher than the precedence of Addition and subtraction. So by solving this with the precedence, we would first solve the multiplication operator which is 25 * 2, it will give 50, then we will subtract 16 from it like 50-16, which will give us 34.

3 0
3 years ago
Read 2 more answers
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