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3 years ago

If a bottle rotates through 270 degrees in 3 seconds how many degrees does it rotate in 2 seconds

2 answers:

7 0

The bottle rotates 180 degrees in 2 seconds.

I divided 270 by 3, which was 90. Then, I multiplied 90 by 2. Which was 180.<span />

STatiana [176]3 years ago

7 0

270 / 3 = 90
90 sec per spin
then you multply by two for two spins

90x2=180

Answer is 180 per sec

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PLS HELP ME QUICK.GRAPH INCLUDED

ahrayia [7]

Answer:

C ) translate ∠MRS down and to the right

Step-by-step explanation:

MN and JK are parallel and are intersected by line QT.

Since MN and JK are parallel and are intersected by line QT So, ∠MRS and ∠JST are corresponding angles

So, ∠MRS = ∠JST (Corresponding angles are equal)

Now transformation could be used to show that ∠MRS is congruent to ∠JST

So, Wee need to translate ∠MRS down and to the right

Then it will overlap ∠JST

So, Option C is true .

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3 years ago

The Pew Research Center finds that the demographic make-up of political parties is changing drastically through the election cyc

patriot [66]

Answer:

(a)0.34

(b)0.5

(d)0.544

(e)0.655

(f)Not disjoint events

(g)Independent events

Step-by-step explanation:

The summary of education levels among party lines is given in the table below

$\left|\begin{array}{c|ccc}&$Democrat &$Republican &$Total\\--&--&--&--\\$College Degree &37 &31 &68\\$No College Degree& 63 &69 &132\\--&--&--&--\\$Total &100 &100& 200\end{array}\right|$

(a)Probability a randomly selected participant has a college degree.

The probability a randomly selected participant has a college degree is:

$=\dfrac{68}{200} =0.34$

(b)The probability that a randomly selected participant is a democrat.

$=\dfrac{100}{200} =0.5$

(c)The probability that a randomly selected participant is a democrat and has a college degree.

$=\dfrac{37}{200} =0.185$

(d)Probability of being a democrat given that the participant has a college degree.

$=\dfrac{37}{68} \approx 0.544$

(e)The probability of begin a democrat or having a college degree

Number of Democrats =100

Number of Those with College degrees = 68

Number of democrats with College degrees =37

Therefore:

Probability of begin a democrat or having a college degree

$=\dfrac{100+68-37}{200} \\=\dfrac{131}{200}\\\\=0.655$

(f)The event of having a college degree and being a democrat are not disjoint events as there are some democrats who have a college degree.

(g)The event of having a college degree and being a democrat are independent events as the outcome of one does not affect the other.

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3 years ago

4(2x-5)+6=-3(-4x+8)-7

sladkih [1.3K]

Answer:

x = 4.25

Step-by-step explanation:

The given equation of line is :

4(2x-5)+6=-3(-4x+8)-7

Solving LHS,

4(2x-5)+6 = 8x-20+6

= 8x-14

Solving RHS,

-3(-4x+8)-7 = 12x-24-7

= 12x-31

So,

8x-14 = 12x-31

Taking like terms together,

8x-12x = -31+14

-4x = -17

x = 4.25

So, the value of x is equal to 4.25.

7 0

3 years ago

What is x squared minus x squared?

sertanlavr [38]

I think it is 0 because they cancel each other out!

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4 years ago

Solve the following equation algebraically<br> x^2=50

zepelin [54]

Answer:

7.071

Step-by-step explanation:

$x^{2}$ = 50

$x$ = $\sqrt{50}$

= 7.071

3 0

4 years ago

Read 2 more answers