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3 years ago

Which of the following statements is true

Mathematics

1 answer:

konstantin123 [22]3 years ago

5 0

Hey!

The answer is option c).

√9 is a rational number as √9 = 3..

while √10 is an irrational number..

Hope it helps^^

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3 1/4 divided by 2 2/3 <br> (convert to mixed number)

Olin [163]

Answer:

3 1/8

Step-by-step explanation:

6 0

3 years ago

Solve the system by adding or subtracting.

irakobra [83]

The answer is (4,-7) :)

3 0

2 years ago

Read 2 more answers

Can someone help me find the midpoint?

ioda

Answer:

(6,-2.5)

Step-by-step explanation:

The formula for the midpoint between two points is:

$(\frac{x_{1} + x_{2}}{2},\frac{y_{1}+y_{2}}{2})$

Now we substitute

We have than (9, -1) is $(x_{1}, y_{1})$ and (3, - 4) is $(x_{2}, y_{2})$

So:

$(\frac{(9) + (3)}{2},\frac{(-1)+(-4)}{2})\\\\(-1) + (-4) = -5\\9 + 3 = 12\\$

So, we have:

$(\frac{12}{2}, \frac{-5}{2})\\\\12 / 2 = 6\\-5 / 2 = -2.5\\\\(6, -2.5)$

I can do a graphic explanation if you want.

6 0

3 years ago

Which decimal is equivalent to 7.44343434

alexandr402 [8]

You know what its probably 7.44

3 0

3 years ago

1. tan a = cot(a + 10°)

Temka [501]

Answer:

$a=40+90n$

Step-by-step explanation:

Use a cofunction identity on the right hand side or left hand side...

So $\tan(a)=\cot(90-a)$ .

We have the equation:

$\tan(a)=\cot(a+10)$

Make the above replacement:

$\cot(90-a)=\cot(a+10)$

Since cotangent has period 180 degrees, we can also write this as:

$\cot(90-a+180n)=\cot(a+10)$

So solving the following will give us a set of solutions for $a$ :

$90-a+180n=a+10$

Add $a$ on both sides:

$90+180n=2a+10$

Subtract 10 on both sides:

$80+180n=2a$

Divide both sides by 2:

$40+90n=a$

Symmetric property:

$a=40+90n$

7 0

3 years ago