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3 years ago

HELP ME 10 POINTS!!!!!!

Mathematics

2 answers:

Alecsey [184]3 years ago

8 0

Answer: The equation equals x-5
4x-5-3x
x-5
Thats it

Kipish [7]3 years ago

6 0

C-O-D-E__(frg.ok.fn.idb)❤️✌️❤️

1.)✌️ J-O-I-N__4__S-3-X

You might be interested in

A number from 13 to 21 is drawn at random.<br> P( a prime number)

Stolb23 [73]

Answer:

Probability[Prime number] = 1/3

Step-by-step explanation:

Given:

Total number between 13 to 21;

13, 14, 15, 16, 17, 18, 19, 20, 21

Find:

Probability[Prime number]

Computation;

Total number between 13 to 21 = 9

Total number of prime number;

13, 17 ,19

Total number of prime number = 3

Probability pf event = Number of favorable output / Total output

Probability[Prime number] = Total number of prime number / Total number between 13 to 21

Probability[Prime number] = 3 / 9

Probability[Prime number] = 1/3

4 0

3 years ago

Consider estimating a population proportion p. What is the most conservative sample size (erring on the large size) required in

just olya [345]

Answer:

The most conservative sample size is 2401.

Step-by-step explanation:

We are given the following in the question:

We are not given any approximation of s]ample proportion, thus,

$\hat{p} = 0.5$

We have to construct a 95% confidence interval.

Margin of error = 2% = 0.02

Formula for margin of error =

$z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.02 = 1.96\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\0.02 = 1.96\times \sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = 1.96\times \dfrac{\sqrt{0.5(1-0.5)}}{0.02}\\\\\sqrt{n}=49\\n = 2401$

Thus, the most conservative sample size is 2401.

3 0

3 years ago

Help me please, thanks.<br><br> -Tornado

Ann [662]

Answer:

$x = - \frac{25}{3}$

Step-by-step explanation:

$\frac{10}{3} = \frac{x}{( - \frac{5}{2}) }$

<h3>i) simplify the complex fraction</h3>

$\frac{10}{3} = - \frac{2x}{5}$

<h3>ii) simplify the equation using cross multiplication</h3>

$5(10) = - 2x(3)$

$50 = - 6x$

<h3>iii) swap the sides of the equation</h3>

$- 6x = 50$

<h3>iv) divide both sides of the equation by -6</h3>

$\frac{ - 6x}{ - 6} = \frac{50}{ - 6}$

$x = - \frac{50}{6}$

<h3>v) simplify the fraction</h3>

$x = - \frac{25}{3}$

6 0

3 years ago

Read 2 more answers

The function f(t)=^ - 16t^ 2 +84t models the height of a ballt seconds after it was kicked straight up into the air. How many se

soldier1979 [14.2K]

Answer:

5.25 seconds

Step-by-step explanation:

When the ball hits the ground the height is zero

Equate f(t) to zero and solve for t , that is

- 16t² + 84t = 0 ← factor out - 4t from each term

- 4t(4t - 21) = 0

Equate each factor to zero and solve for t

- 4t = 0 ⇒ t = 0

4t - 21 = 0 ⇒ 4t = 21 ⇒ t = $\frac{21}{4}$ = 5.25

t = 0 is the time when the ball is kicked

t = 5.25 is the time taken for the ball to hit the ground

5 0

2 years ago

A) 40<br> B) 130<br> C) 90<br> D) 50

tensa zangetsu [6.8K]

Answer:

m<3 = 90

Step-by-step explanation:

This is a kite. The diagonals intersect each other in such a way that m<1 and m<3 are at right angles. m<3 = 90o

3 0

4 years ago