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4 years ago

HELP WITH 12 PLZ???!?!?!?!!!!?

Mathematics

2 answers:

Snezhnost [94]4 years ago

7 0

You only showed half of the question how can we answer that?!

dezoksy [38]4 years ago

3 0

Can you show the full question?

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Christine went on a passenger train that traveled 80 miles in one hour. How many miles will it travel in six hours?

zhuklara [117]

Answer:

480

Step-by-step explanation:

$80*6$ = 480

8 0

2 years ago

Read 2 more answers

1a.) Given the equation 5+ 6n-4n-15, explain how to get the answer n10.

Savatey [412]

Answer:

Step-by-step explanation:

combine like terms (6n-4n)=(5-15)

2n=-20

n=20/2

n=10

7 0

3 years ago

How many distinct prime factors are in the number 120 ?

larisa86 [58]

Answer:

Step-by-step explanation:

Note the prime factorization of 120,

$120=2^3\times 3\times 5$

Therefore, there are 3 distinct prime factors, namely 2, 3 and 5.

8 0

3 years ago

Let theta be an angle in quadrant II such that cos theta = -2/3

Iteru [2.4K]

Answer:

So we have $\csc(\theta)=\frac{3 \sqrt{5}}{5} \text{ and } \tan(\theta)=\frac{-\sqrt{5}}{2}$ .

Step-by-step explanation:

Ok so we are in quadrant 2, that means sine is positive while cosine is negative.

We are given $\cos(\theta)=\frac{-2}{3}(\frac{\text{adjacent}}{\text{hypotenuse}})$ .

So to find the opposite we will just use the Pythagorean Theorem.

$a^2+b^2=c^2$

$(2)^2+b^2=(3)^2$

$4+b^2=9$

$b^2=5$

$b=\sqrt{5}$ This is the opposite side.

Now to find $\csc(\theta)$ and $\tan(\theta)$ .

$\csc(\theta)=\frac{\text{hypotenuse}}{\text{opposite}}=\frac{3}{\sqrt{5}}$ .

Some teachers do not like the radical on bottom so we will rationalize the denominator by multiplying the numerator and denominator by sqrt(5).

So $\csc(\theta)=\frac{3}{\sqrt{5}} \cdot \frac{\sqrt{5}}{\sqrt{5}}=\frac{3 \sqrt{5}}{5}$ .

And now $\tan(\theta)=\frac{\text{opposite}}{\text{adjacent}}=\frac{\sqrt{5}}{-2}=\frac{-\sqrt{5}}{2}$ .

So we have $\csc(\theta)=\frac{3 \sqrt{5}}{5} \text{ and } \tan(\theta)=\frac{-\sqrt{5}}{2}$ .

7 0

3 years ago

Read 2 more answers

Georgina was given that the length of the rectangle was 2.5 inches longer than its width, and that the perimeter of the rectangl

Troyanec [42]

Answer: length = 20.1

Width=17.6

Step-by-step explanation:

4 0

3 years ago