MATHEMATICS MIDDLE SCHOOL

What is the value of quartile 2 (Q2)? 4.72.3

3.0

0
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Answers

Answer 1

Answer:

Answer:

$Q_(2)$ = 3.0

Step-by-step explanation:

$Q_(2)$ represents the median of the data set.

From the box plot the median is the horizontal line inside the box and is positioned at 3.0

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Please answer these 6 questions

Answers

1. You would add 5 to -14, getting -9, which leaves you with 3x=-9. You would then divide -9 by 3, leaving you with x=-3.
2. First, subtract 22 from 10, getting -12=-2c. Next divide -12 by -2, leaving you with 6=c.
3. Add 17 to 18 to get 35=-5b. Then divide 35 by -5, leaving you with -7=b.
4. Subtract 12 from -12, giving you -24=-8x. Then divide 24 by 8, giving you 3=x.
5. Add .03 to -9, giving you 1.3n= -8.97. Divide-8.97 by 1.3 to get n=-6.9.
6. Subtract 7/9 from 2/9 leaving you with -5/9=-5/11h. Divide and get h=1 and 2/9.
Hope this helped! : )

4-9x= -14 solve the inequality.

Answers

The solution to the given inequality 4 - 9x ≤ -14 is x ≥ 2.

To solve the inequality 4 - 9x ≤ -14, we can follow these steps:

Step 1: Subtract 4 from both sides of the inequality:

4 - 4 - 9x ≤ -14 - 4

-9x ≤ -18

Step 2: Divide both sides of the inequality by -9. Remember, when dividing by a negative number, we need to reverse the inequality sign:

(-9x) / -9 ≥ (-18) / -9

x ≥ 2

Therefore, the solution to the inequality 4 - 9x ≤ -14 is x ≥ 2.

This means that any value of x that is greaterthan or equal to 2 satisfies the inequality.

Learn more about inequalities here:

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The correct question is as follows:

Solve the inequality.

4-9x ≤ -14

4 - 9x = -14
4 - 4 - 9x = -14 - 4
9/9x = -18/9
x = -2

How many tenths are in four fifths

Answers

4*2=8
5*2=10

Therefore, 4/5=8/10. There are 8 tenths in four fifths.

A bakery bakes 184 loaves of bread in 4 hours. How many loaves does the bakery bake in 1 hour?

Answers

$184\ loaves\ of\ bread\ baked\ in\ 4\ hours\n\nx\ loaves\ of\ bread\ baked\ in\ 1\ hour\n\nProportion:\n184-4\nx-1\n\nCross\ multiplication:\n184+1=4*x\n184=4x\ \ \ | divide\ by\ 4\nx=46\n\nIn\ 1\ hour\ 46\ bread \ are\ baked.$

All you have to do is 184 divided by 4 and it equals 46

A ball is thrown vertically upward from the ground with an initial velocity of 122 ft/sec. Use the quadratic functionh(t) = -16t2 + 122t +0 to find how long it will take for the ball to reach its maximum height, and then find the
maximum height. Round your answers to the nearest tenth.

Answers

Answer:

232.6 metres after 3.8 seconds.

Step-by-step explanation:

h(t) = -16t² + 122t

a = -16 b = 122 c = 0

Substitute into the quadratic formula

(Ignore the Â)

$x = \frac{-b±\sqrt{b^(2)-4ac}}{2a}$

$x = \frac{-122±\sqrt{122^(2)-4(-16)(0)}}{2(-16)}$

$x = (-122±122)/(-32)$

Split the equation at the ±

$x = (-122+122)/(-32)$ $x = (-122-122)/(-32)$

$x = (0)/(-32)$ $x = (-244)/(-32)$

$x = 0$ $x = (61)/(8)$

The two x-intercepts at 0 and 61/8. The midpoint of the x-intercepts is the axis of symmetry, which is the x-coordinate of the vertex.

Midpoint = [0 + (61/8)] / 2

Midpoint = 61/16 <= This is the time for maximum height

t = 61/16

t = 3.8125 => Round to t = 3.8

To find the maximum height, substitute t=61/16 into the equation

h(t) = -16t² + 122t

h(61/16) = -16(61/16)² + 122(61/16)

h(61/16) = 232.5625 => Round to h = 232.6

Therefore, the ball will reach the maximum height of 232.6 metres after 3.8 seconds.

Mr. Zero bought a number of gold pieces for $60. He kept 15 of them and sold the rest for $54. He made a profit of $0.10 on each of those he sold. How many gold pieces did he buy? a) 60 b) 120 c) 75 d) 150
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