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4 years ago

I need help it has to be a mixed number, three numbers Please and Thank You.

Mathematics

1 answer:

Umnica [9.8K]4 years ago

5 0

You basically do whatever is bigger than the one your comparing it to that’s how I do it in my school

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In the nation of Gondor, the EPA requires that half the new cars sold will meet a certain particulate emission standard a year l

olganol [36]

Answer:

The options given in the question are incorrect , the correct options are:

a. - 1.645 b. -2.066 c. -2.000 d. -1.960

The test statistic to see whether the proportion is below the requirement is c. -2.000.

Step-by-step explanation:

p= 24/64 = .375

π0= .50

zcalc= (0.375 - 0.50)/[(0.50)(1 - 0.50)/64] $^{\frac{1}{2}}$ = -2.000

5 0

3 years ago

Anybody know this answer

katrin [286]

It shows three periods of a sin graph

3 0

3 years ago

Find the slope intercept form. passes through the points (4,3) and (7,-2)

11111nata11111 [884]

$(\stackrel{x_1}{4}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{-2}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-2}-\stackrel{y1}{3}}}{\underset{run} {\underset{x_2}{7}-\underset{x_1}{4}}} \implies \cfrac{-2 -3}{7 -4} \implies \cfrac{ -5 }{ 3 }$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{3}=\stackrel{m}{-\cfrac{5}{3}}(x-\stackrel{x_1}{4}) \\\\\\ y-3=-\cfrac{5}{3}x+\cfrac{20}{3}\implies y=-\cfrac{5}{3}x+\cfrac{20}{3}+3\implies y=-\cfrac{5}{3}x+\cfrac{29}{3}$

3 0

2 years ago

AC is tangent to circle O at point C. What is the length of AB?

DochEvi [55]

The length of AB is 9.

Solution:

Given data:

Radius OC = 8

Tangent AC = 15

The angle between the tangent and radius is always right angle.

∠C = 90°.

Hence OCA is a right triangle.

Using Pythagoras theorem,

In a right triangle square of the hypotenuse is equal to the sum of the squares of the other two sides.

$OA^2=15^2+8^2$

$OA^2=225+64$

$OA^2=289$

$OA^2=17^2$

Taking square root on both sides of the equation, we get

OA = 17

OB is the radius of the circle.

⇒ OB = 8

AB = OA – OB

= 17 – 8

= 9

AB = 9

Hence the length of AB is 9.

4 0

4 years ago

Read 2 more answers

How to solve 4/7y-2 = 3/7 + 3/14

lisabon 2012 [21]

Solution

1) Simplify $\frac{4}{7y}$ to $\frac{4y}{7}$
$\frac{4y}{7}$ −2= $\frac{3}{7}$ + $\frac{3}{14}$

2) Simplify $\frac{3}{7}$ + $\frac{3}{14}$ to 914
 $\frac{4y}{7}$ −2= $\frac{9}{14}$

3) Add 2 to both sides
 $\frac{4y}{7}$ = $\frac{9}{14}$ +2

4) Simplify $\frac{9}{14
}$ +2 to $\frac{37}{14}$
$\frac{4y}{7}$ = $\frac{37}{14}$

5) Multiply both sides by 7
4y= $\frac{37}{14}$ ×7

6) Simplify $\frac{37}{14}$ ×7 to $\frac{259}{14}$
$\frac{4y}{7}$ = $\frac{259}{14}$

7) Simplify $\frac{259}{14}$ to $\frac{37}{2}$
$\frac{4y}{7}$ = $\frac{37}{2}$

8) Divide both sides by 4
y= $\frac{37}{2}$ ×4

9) Simplify 2×4 to 8
y= $\frac{37}{8}$

Hope this helps

5 0

3 years ago

I need help it has to be a mixed number, three numbers Please and Thank You.​

I need help it has to be a mixed number, three numbers Please and Thank You.