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r-ruslan [8.4K]
3 years ago
11

1) 4 6/8 + 3 2/3 = ?

Mathematics
1 answer:
Colt1911 [192]3 years ago
5 0
This is how you add fractions..
I have solved it step-by-step. If you understand this, you'll know how to subtract, too. 
If you don't understand, message me :)

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. Your friend gives you the graph of quadrilateral
disa [49]

2 2 2 2 2 22 2 2 22 2 2 2 2 2 2 2 2 2 2

its 2.

6 0
3 years ago
12 + 3 to the power of 2 + 50<br><br> (using PEMDAS)
Musya8 [376]
First you do 3 to the 2nd power which is 9 then you just add 12+9+50= 71
8 0
3 years ago
Read 2 more answers
Find the measure of angle 8<br>​
andrezito [222]

Answer: 18

Step-by-step explanation:

First we need to solve for x to find the measure of the adjacent angle.

-6x+64 = 8x + 162

subtract 162 to leave x by itself

-6x- 98 = 8x

add 6x to both sides

-98 = 14x

now divide by 14

x = -7

Now solve one of the given equations to find the measure of the adjacent angle.

8(-7)+162

-56 + 162 = 106

Meaning the measure of angle 8 is 18

because they'll add up to 180(The measure of the line)

4 0
3 years ago
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Fifty specimens of a new computer chip were tested for speed in a certain application, along with 50 specimens of chips with the
Murljashka [212]

Answer:

Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips

Step-by-step explanation:

H_{0}: Mean speed of the new chip is the same as the old chip

H_{a}: Mean speed of the new chip is greater than the old chip

to calculate the z-statistic we can use the formula:

z=\frac{M_{n}-M_{o}}{\sqrt{\frac{s_{n}^2}{N_{n}} +\frac{s_{o}^2}{N_{o}} } }

if we put the numbers then

z=\frac{495.6-481.2}{\sqrt{\frac{19.4^2}{65}} +\frac{14.3^2}{65} } } =4.8171

The probability of this z-statistic is < 0.001 Therefore Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips

4 0
3 years ago
i dont understand equations of parallel and perpendicular lines here's one of my teachers examples y=2x+4 (-2,1)
SIZIF [17.4K]
Parallel lines will never touch each other while perpendicular forms like an X shape. The slope for the parallel is the same while the perpendicular is a negative reciprocal. (Ex for negative reciprocal. 2/4=4/2)
8 0
3 years ago
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