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Anvisha [2.4K]
3 years ago
10

In a math class of 40 students, there are 21 female students. Which of the following does NOT represent a ratio of the number of

girls in the classroom to the total number of students?
19/40
0.53
21/40
53%

Mathematics
1 answer:
babymother [125]3 years ago
6 0

Answer:

Everything except 21/40. That is your ratio. The denominator always

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Question 3 of 10
Grace [21]

The cost to rent the space with measures 18 ft x 16 ft for a year is $62,208

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

The area of the space = 18 ft * 16 ft = 288 ft²

The cost per month is $18 per ft² per month, hence:

The cost of rent per year = $18 per ft² per month * 288 ft² * 12 month = $62,208

The cost to rent the space with measures 18 ft x 16 ft for a year is $62,208

Find out more on equation at: brainly.com/question/2972832

#SPJ1

3 0
3 years ago
If point (4,5) is on the graph of a function, which equation must be true?
KatRina [158]
F(4) = 5 because (x, y) = (4, 5)
 
a function is normally f(x)=y
5 0
3 years ago
Read 2 more answers
The formula for the circumference, C, of a circle with given radius, r, is C = 2nr.
LekaFEV [45]

Answer:

C. 22

Step-by-step explanation:

C = circumference

n (pi) = 22/7

r = 3 1 /2

Plug in the numbers for each variable.

C = 2x (22/7) x (3 1/2)

Change the mixed number inIto an improper fraction by multiplying 3 x 2 and adding the 1 which gives us 7 over 2 because 2 is our denominator  so, 3 1/2 = 7/2. It also helps to have 1 as the denominator for 2.

C = (2/1) x (22/7) x (7/2)

Lastly, just multiply the numerators across which give us 308 then multiply the denominators across which gives us 14, so then we divide 308 by 14 and get 22.

6 0
3 years ago
5. Write x^2 + 8x = -4y - 8 in standard form. Identify the vertex, focus, axis
nikitadnepr [17]

Answer:

The answer to your question is:

Step-by-step explanation:

Data

                                             x² + 8x = -4y - 8

                                             x² + 8x + 16  = -4y - 8 + 16

                                             x² + 8x + 16  = -4y + 8

                                             (x + 4)² = -4(y - 2)

                                             (x + 4)² = 4(-1)(y - 2)

Vertex = (-4, 2)

p =  1

Focus = (-4, 1)

Axis of symmetry  x = -4

Directrix      y = 3

4 0
3 years ago
A rectangular plot of land is represented on a coordinate plane where each unit is one foot. The vertices are at (60,30), (60,90
Arte-miy333 [17]
To find his answer you will find the distance between (60, 30) and (100, 30) (length). How far from 60 to 100. It is 40 feet. The x values are used to see the distance.

To find the height use (60, 30) and (60, 90). How far is it from 30 to 90? These are the y values This is 60 feet.

To find the perimeter add 60+60+40+40. The answer is 200 feet. You can show this as P=200 feet.
3 0
4 years ago
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