MATHEMATICS MIDDLE SCHOOL

Which ordered pair is the vertex of y= -|X+4|

Answers

Answer 1
Answer:

y = -|x + 4|

The coordinates of vertex of that function is (x; 0).

-|x + 4| = 0

|x + 4| = 0 ⇔ x + 4 = 0 |-4

x = -4

Answer: (-4; 0)

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Ariel goes running for 5/6 of an hour.The next day,she runs for 3/4 as much time. Does she spend more or less time running the second day? Draw a diagram or make a model to represent the problem.

Answers

less because 3 fourths is more than 5 sixths

Answer:

Less

Step-by-step explanation:

Less time because you first find the common denominator which is twelve for 3/4 it would be 9/12 and for 5/6 it would be 10/12 so 5/6 which is greater that 3/4.

What is the special name for the perimeter of a circle

Answers

The name for the perimeter of a circle is the circumference

If B1 = 3 m and B2 = 4m and the area is 7 m squared, what is the height?

Answers

the height is 1, because it's A=(b1 + b2)*h, the equation is this now 7=3 + 4)*h, you add 3 + 4 then that will give you 7, so now it should look like this 7=7*h, you do a fraction line under the 7 and 7*h each, and put a 7 as the denominator, so it kind of looks like this now 7 = 7*h
                                                                      __   __
                                                                        7    7      then you cancel the 7*h which leaves you to just h, so 7 divided by 7 will give you 1 so it looks like 1=h, PHEW

in a class 60% of the students are girls. There are 18 girls in the class. How many students are in the class

Answers

60             18
—      =     — 
100           x 

to solve the percent proportion :
100 x 18 = 1800
1800 ÷ 60 = 30
there are 30 students in the class.

If a pair of shoes costs a retailer $24 and he sells them for $39.60, what is his rate of profit

Answers

Answer:

he will get $15.60 profit for every one pair of shoes he sells

Step-by-step explanation: yep your welcome

52 companies; 25% increase find original amount?

Answers

To find your answer, you would find 25% of 52. To find 25% of 52, you would multiply 52x.25.
52x.25=13
Now you need to subtract 52-13. 52-13 is 39. The original amount is 39 companies.
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