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3 years ago

Plz help me i dont understand

Mathematics

2 answers:

stiks02 [169]3 years ago

7 0

Answer:

hope it helped you!!

BTW, angle 1 + angle 2 = 180

olga nikolaevna [1]3 years ago

5 0

Answer:

Step-by-step explanation:

So, since angle 1 and angle 2 are complimentary, ( meaning that they will both add to equal 180 degrees), you can do what I did:

180-81=99

99+30=69

69/3=23

X=23

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Which is the slowest rate? a. 2,983 km in 5 hr

Eddi Din [679]

Answer:

C. 3,094 km in 12 hr

Step-by-step explanation:

we need to find kilometer per 1 hour so

2983/5=596.6 kilometers per hour

5,193/7= 741.857142857 km per hour

3,094/12=257.833333333 km per hour

1,784/3=594.666666667 km per hour

now which number is lowest

third one

Have a wonderful day! ask me if you have more questions

7 0

3 years ago

In the triangle ABC , Angle A = 46° and Angle B = 83°. How large is the exterior angle at C?

lisabon 2012 [21]

Answer:

180 - 46 - 83 = 51 is the measure of angle C

the exterior angle at angle C, and angle C, are supplementary. since angle C is 51 because of the interior angle triangle sum theorem, then the exterior angle is: 180 -51 = 129 degrees.

Step-by-step explanation:

I hope this helps :)

4 0

3 years ago

Question 5: prove that it’s =0

mamaluj [8]

Answer:

Proof in explanation.

Step-by-step explanation:

I'm going to attempt this by squeeze theorem.

We know that $\cos(\frac{2}{x})$ is a variable number between -1 and 1 (inclusive).

This means that $-1 \le \cos(\frac{2}{x}) \le 1$ .

$x^4 \ge 0$ for all value $x$ . So if we multiply all sides of our inequality by this, it will not effect the direction of the inequalities.

$-x^4 \le x^4 \cos(\frac{2}{x}) \le x^4$

By squeeze theorem, if $-x^4 \le x^4 \cos(\frac{2}{x}) \le x^4$

and $\lim_{x \rightarrow 0}-x^4=\lim_{x \rightarrow 0}x^4=L$ , then we can also conclude that $\im_{x \rightarrow} x^4\cos(\frac{2}{x})=L$ .

So we can actually evaluate the "if" limits pretty easily since both are continuous and exist at $x=0$ .

$\lim_{x \rightarrow 0}x^4=0^4=0$

$\lim_{x \rightarrow 0}-x^4=-0^4=-0=0$ .

We can finally conclude that $\lim_{\rightarrow 0}x^4\cos(\frac{2}{x})=0$ by squeeze theorem.

Some people call this sandwich theorem.

6 0

3 years ago

Help pleaseee i am awful at math

kupik [55]

Step-by-step explanation:

answer is B

use unitary method to solve it

6 0

3 years ago

Read 2 more answers

What is the value of m in the equation 1/2m - 3/4n = 16 ,

amid [387]

m = 32 & n = 0

____________

7 0

3 years ago