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labwork [276]
3 years ago
12

(5+9)+7 to associative

Mathematics
1 answer:
Marrrta [24]3 years ago
7 0

Answer:

21

Step-by-step explanation:

(5+9)+7

(14)+7

14+7=21

According to BODMAS

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In a right triangle, the measure of one acute angle is 12 more than twice the measure of the other acute angle. Find the measure
soldi70 [24.7K]

Given:

In a right triangle, the measure of one acute angle is 12 more than twice the measure of the other acute angle.

To find:

The measures of the 2 acute angles of the triangle.

Solution:

Let x be the measure of one acute angle. Then the measure of another acute is (2x+12).

According to the angle sum property, the sum of all interior angles of a triangle is 180 degrees. So,

x+(2x+12)+90=180

3x+102=180

3x=180-102

3x=78

Divide both sides by 3.

x=\dfrac{78}{3}

x=26

The measure of one acute angle is 26 degrees. So, the measure of another acute angle is:

2x+12=2(26)+12

2x+12=52+12

2x+12=64

Therefore, the measures of two acute angles are 26° and 64° respectively.

8 0
3 years ago
What are the coordinates of point A?<br><br>(8,-6)<br>(-6,8)<br>(-5,7)<br>(7,-5)​
mihalych1998 [28]

Answer:

Not the smartest person, but the graph shows that they're pointing down!

Step-by-step explanation:

7 0
3 years ago
Express 0.484848..... in p/q form​
cupoosta [38]
<h3>Answer:  16/33</h3>

It's in p/q form where p = 16 and q = 33.

=======================================================

Work Shown:

x = 0.484848.....

100x = 48.4848.....

I multiplied both sides by 100 to move the decimal over 2 spots. Both decimal values for x and 100x have an infinite string of "48"s repeated after the decimal point. When we subtract, those infinite strings will cancel out

100x - x = 99x

48.4848..... - 0.484848..... = 48

So after subtracting straight down, we have the new equation 99x = 48 which solves to x = 48/99

Divide both parts by the GCF 3 to fully reduce

48/3 = 16

99/3 = 33

Therefore, x = 48/99 = 16/33 = 0.484848...

I recommend using a calculator to confirm that 16/33 = 0.484848...

Side note: your calculator may round the last digit, but this is of course rounding error

7 0
3 years ago
Which of the following is not a valid probability distribution for a discrete random variable? Check all that apply.
IgorC [24]
B is one of them, do you have any ideas?
3 0
3 years ago
Read 2 more answers
The figure above shows a square inscribed in a rectangle.
slava [35]

Step-by-step explanation:

first u must find the area of the rectangle.after that,find the area of the square.then you have tu subtract it so that u can get the orange area.

8 0
3 years ago
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