There were 150 students wearing red shirts today. If there are a total of 300 students at school, about how many out of a class of 30 could be wearing red shirts?

Answer:

No it is not a function

Step-by-step explanation:

Since x=0 produces y=4 and y=0, the relation (2,3),(0,4),(−1,2),(3,−4),(0,0),(-3,−2),(−2,0) is not a function.

Answer:

Step-by-step explanation:

The tangent function can be considered to be the ratio of the sine and cosine functions:

  tan(x) = sin(x)/cos(x)

It will be undefined where cos(x) = 0. The values of x where that occurs are odd multiples of π. The smallest such multiple is x=π/2. The value of the sine function there is positive: sin(π/2) = 1.

The corresponding trig function values are ...

  tan(x) = undefined (where sin(x) >0)

  sin(x) = 1

  cos(x) = 0

__

And the reciprocal function values at x=π/2 are ...

  cot(x) = 0 . . . . . . 1/tan(x)

  csc(x) = 1 . . . . . . .1/sin(x)

  sec(x) = undefined . . . . . 1/cos(x)

Answer:

97%

Step-by-step explanation:

Answer:

the answer is 5 hope this helps have a great day

Step-by-step explanation:

5-4(2-x)=17

5-4(-x+2)=17

5-4(-x+2)=17

5+4x-8=17

5+4x-8=17

-3+4x=17

4x-3=17

4x-3+3=17+3

4x=20

4x/4=20/4

x=5

Factoring an expression involves rewriting the expression in simplier form

The factored expression of [tex]5xy^3 + 15x^3y^2 - 30x^2y^2[/tex] is [tex]5xy^2(y + 3x^2 - 6x)[/tex]

The expression is given as:

[tex]5xy^3 + 15x^3y^2 - 30x^2y^2[/tex]

Factor out 5x from the expression

[tex]5x(y^3 + 3x^2y^2 - 6xy^2)[/tex]

Factor out y^2 from the expression

[tex]5xy^2(y + 3x^2 - 6x)[/tex]

Hence, the factored expression of [tex]5xy^3 + 15x^3y^2 - 30x^2y^2[/tex] is [tex]5xy^2(y + 3x^2 - 6x)[/tex]

Read more about factorized expressions at:

https://brainly.com/question/723406

Answer:

real-world problems.

Step-by-step explanation:

Answer:

C = 100 + 25t

Step-by-step explanation:

Answer:

Option A

The answer is $918

Step-by-step explanation:

Now,

23 × 17 = $391

31 × 17 = $517

So,

$391 + $527 = $918

Thus, The amount of money he earned by building toys is $918.

-TheUnknownScientist 72

Answer:

A is the correct answer

Answer:

c

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

6+x=7x

7x-x=6

6x=6

6x=6

6 6

x=1

Answer:

A, because the cat is only 15 feet in the air and the TREE is 50 feet

Answer:

[tex]r = \frac{50}{3} (2^{2/3} \sqrt[3]{59} - 6)[/tex]

Hope its help

Answer:

D

Step-by-step explanation:

Because y intercept is -25

so in D it says - 25

Answer:

=================================================

Explanation:

The numbers sort to this

16, 18, 23, 24, 29, 30

Cross off the outer most values 16 and 30 to end up with this smaller set

18, 23, 24, 29

Then repeat to get this smaller set

23,24

We add up these numbers and divide the sum by 2

(23+24)/2 = 47/2 = 23.5

The median is 23.5

The last steps of adding and dividing by 2 only works if we have an even number of values in the original set.

Answer:

Nate made a mistake. He should have got 24 as Least common factor.

Step-by-step explanation:

Given number are 8 and 12.

To find the GCF or LCF we have to list multiples.

For LCF

For GCF

The least common multiple of 8 and 12 is 24.

The Greatest common multiply of 8 and 12 is 4.

Hence, Nate is wrong. Nate should have found 24.

[RevyBreeze]

Answer:

Its Jim

Step-by-step explanation:

I got Ryan running at 5 1/2 miles per hour, while Jim runs at 6 miles per hour.

Answer:

9

Step-by-step explanation:

45 mph per 5 gallons

45 ÷ 5

or

45/5

=

9

Unit Rate per Gallon is 9

Answer:

Step-by-step explanation: 3²+12²=x² simplifies to 9+144=x² so 153=x² or x²=153.

A. People who live near the unused park

Step-by-step explanation:

It would be best to ask people who live near the unused park since they would most likely be the ones using it.

Answer:

A

Step-by-step explanation:

because they would have better fun for their kids and it wouls probably cost less

Answer:

que es eso no se ingles

We are given with a circle and we need to find the equation of the circle , but first let's recall that , the equation of a circle with radius 'r' and centre at (h,k) is given by [tex]{\bf{(x-h)^{2}+(y-k)^{2}=r^{2}}}[/tex]

Now , here as as the circle cuts the +ve x-axis at (9,0) . So , it's radius is 9 units or the 2nd way is to measure the distance from centre of the circle to the point where the circle cuts the graph , as the centre is at Origin , so here (h,k) = (0,0) .Which means that the centre is located at the point whose coordinates are (0,0) which is also known as origin . Now , finding the equation of the circle :-

[tex]{:\implies \quad \sf (x-0)^{2}+(y-0)^{2}=(9)^{2}}[/tex]

[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{x^{2}+y^{2}=81}}}[/tex]

This is the required equation of Circle

Answer:

-768

….......

Substitute n = 8 into the explicit formula

[tex]a_{8} = 6[/tex] × [tex](-2)^{7}[/tex]= [tex]6[/tex] × [tex]-128[/tex]

= -768

Answer:

[tex]\sf n = 6[/tex]  and [tex]\sf m= 6[/tex]

solving similarities

given: ΔBAC = ΔDBC

solve for m

[tex]\sf \frac{BA}{BC} = \frac{DB}{DC}[/tex]

[tex]\sf \frac{m}{4} = \frac{3}{2}[/tex]

[tex]\sf m= \frac{4*3}{2}[/tex]

[tex]\sf m= 6[/tex]

solve for n

[tex]\sf \frac{BA}{AC} = \frac{DB}{BC}[/tex]

[tex]\sf \frac{6}{n+2} = \frac{3}{4}[/tex]

[tex]\sf 3(n+2) = 24[/tex]

[tex]\sf (n+2) = 8[/tex]

[tex]\sf n = 8-2[/tex]

[tex]\sf n = 6[/tex]

In ∆ABD and ∆BCD

[tex]\\ \rm\hookrightarrow \dfrac{m}{3}=\dfrac{4}{2}[/tex]

[tex]\\ \rm\hookrightarrow m/3=2[/tex]

[tex]\\ \rm\hookrightarrow m=3(2)[/tex]

[tex]\\ \rm\hookrightarrow m=6[/tex]

In ∆ABC

[tex]\\ \rm\hookrightarrow \dfrac{m}{4}=\dfrac{n}{2}[/tex]

[tex]\\ \rm\hookrightarrow \dfrac{6}{4}=\dfrac{n}{2}[/tex]

[tex]\\ \rm\hookrightarrow 3/2=n/2[/tex]

[tex]\\ \rm\hookrightarrow n=6/2[/tex]

[tex]\\ \rm\hookrightarrow n=3[/tex]

Answer:

a) 6x² - 8x

b) 2x² + x - 15

c) 4x² - 25

d) 2x³ + 7x² - 3x

Step-by-step explanation:

a) 2x (3x - 4)

brackets means multiplication or into

base on the question

2x * 3x = 6x^2

and

2x * (-4) = -8x

therefore

6x² - 8x

is the answer

b) (x + 3) (2x - 5)

clear brackets with (x + 3)

i. x * (2x - 5) = 2x^2 - 5x

ii. +3 * (2x - 5) = 6x - 15

add i add ii

2x² - 5x + 6x - 15

if u noticed, there are similar figures 6x and 5x, so we take like term

2x² + x - 15 answer

c) (2x + 5) (2x - 5)

clear bracket

i. 2x * (2x - 5) = 4x² - 10x

ii. 5 * (2x - 5) = 10x - 25

add i and ii

4x² - 10x + 10x - 25

collect terms

4x² - 25 answer

d) x (2x + 1) (x - 3)

I) first we deal with x(2x+1)

x * (2x + 1) = (2x² + x)

II) then we find the multiplication of

(2x² + x) (x - 3)

i. 2x² * (x - 3) = 2x³ - 6x²

ii. x * (x - 3) = x² - 3x

add i and ii

2x³ - 6x² + x² - 3x

collect terms

2x³ - 5x² - 3x

Answer:

Given for big triangle:

Given for small triangle:

setting up proportionality:

[tex]\hookrightarrow \sf \dfrac{36}{3x+24} = \dfrac{27}{3x+9}[/tex]

[tex]\hookrightarrow \sf 36(3x+9) = 27(3x+24)[/tex]

[tex]\hookrightarrow \sf 108x+324 = 81x+648[/tex]

[tex]\hookrightarrow \sf 108x-81x = 648-324[/tex]

[tex]\hookrightarrow \sf 27x = 324[/tex]

[tex]\hookrightarrow \sf x = 12[/tex]

Perimeter of the triangle:

36 + 17 + 15 + 3x + 9

36 + 17 + 15 + 3(12) + 9

113 units

Answer:

x = 12

perimeter = 113 units

Step-by-step explanation:

Triangle Proportionality Theorem states that if a line parallel to one side of the triangle intersects the other two sides, then it divides the sides into proportional corresponding segments.

[tex]\implies 3x+9 : 15 = (36-9) : 9[/tex]

[tex]\implies 3x+9 : 15 = 27 : 9[/tex]

[tex]\implies \dfrac{3x+9}{15}= \dfrac{27}{9}[/tex]

[tex]\implies 3x+9 = 45[/tex]

[tex]\implies 3x = 36[/tex]

[tex]\implies x = 12[/tex]

Perimeter = [tex]3x+9 + 15 + 17 + 36[/tex]

Substituting [tex]x = 12[/tex]:

⇒ perimeter = 3(12) + 9 + 15 + 17 + 36

                     = 113

Answer:

The point is (3,0) is a vertex.

true statements for this hyperbola:

The height of the building on the scale model created by the architect is 40 centimeters long.

Scale factor is the factor which is used to enlarge or smaller the original figure.

Scale factor is the ratio of representation measurement of the figure to the original figures.

The architect creates a scale model of a building with a scale of,

[tex]\rm 5 \;cm =4 \; m[/tex]

As, one meter is equal to 100 centimeters. Thus, the scale factor used by the architect for the building is,

[tex]r=\dfrac{5}{400}\\r=\dfrac{1}{80}[/tex]

Now the actual building is 32 m tall. Let suppose the height of the building on the model is x meters. Thus, the scale factor for this can be given as,

[tex]r=\dfrac{x}{3200}[/tex]

Now, both the scale factor are of the same model. Therefore,

[tex]\dfrac{x}{3200}=\dfrac{1}{80}\\x=40\rm cm[/tex]

Hence, the height of the building on the scale model created by the architect is 40 centimeters long.

Learn more about the scale factor here;

https://brainly.com/question/10253650

Answer:

C is the answer because if u add all the numbers up and subtract how much she has paid so far u get 255,000

Answer: $90,000

Step-by-step explanation: just did the test

Answer:

r ≈ 3.82

Step-by-step explanation:

Using the formula:

C = [tex]2\pi r[/tex]

We rearrange to get r as the subject:

r = [tex]\frac{C}{2\pi }[/tex]

r = 24÷(2×[tex]\pi[/tex])

r ≈ 3.82

Answer:

D

Step-by-step explanation:

it is a strange question. but I guess its meaning is to identify an expression that is structured in the same way as the generic basic expression.

3×(n + 1.8)

after doing the multiplication this gives us

3n + 3×1.8 = 3n + 5.4

so, the only answer option including 5.4 is D.

it would mean that 3n = 3.75. n = 1.25

but just to show you how strange this question is, let's have a look at the other answer options :

is 5.55 = 3n + 5.4 ?

it would mean

0.15 = 3n

n = 0.05

so, formally, this is also an expression that represents the original expression.

9.15n = 3n + 5.4

6.15n = 5.4

n = 5.4/6.15 = 0.87804878...

so, formally, this is also an expression that represents the original expression.

3.75 + 1.8 = 3n + 5.4

5.55 = 3n + 5.4

and we are back to A and therefore, formally, this is also an expression that represents the original expression.

so, many greetings from me to your teacher. he/she has to be more careful about how to phrase questions.

because here, formally, all 4 answers are theoretically correct.