The ratio of boys to girls was 4 to
5. If there were 27 students, how
many boys were there? (Draw a
ratio box for the problem. Then
write and solve a proportion to find
the answer.)
12
09
015
18

Answer:

Angle is right

Sides are scalene

X: 80% degrees

Since if its parallel it's 90% degrees  

Step-by-step explanation:

9514 1404 393

Answer:

  cos(θ) = -12/13

  csc(θ) = -13/5

Step-by-step explanation:

The relation between the cot and csc is ...

  cot² + 1 = csc²

The signs of the cot and sec tell you this is a 3rd quadrant angle, where cos and csc are both negative.

Then ...

  csc(θ) = -√(1 +(12/5)²) = -√(169/25)

  csc(θ) = -13/5

__

  cos(θ) = cot(θ)/csc(θ) = (12/5)/(-13/5)

  cos(θ) = -12/13

Answer:

[tex]Pr = \frac{3}{36}[/tex]

Step-by-step explanation:

Given

2 number die

Required

P(Sum = 4)

The sample space of 2 die is:

[tex]S = \{(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6), (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)[/tex]

[tex](3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6), (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)[/tex]

[tex](5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6), (6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)[/tex]

[tex]n(S)= 36[/tex]

The pairs that adds up to 4 are:

[tex]Sum(4) = \{(1,3), (2,2),(3,1)\}[/tex]

[tex]n(Sum) =3[/tex]

So, the probability is:

[tex]Pr = \frac{n(Sum)}{n(S)}[/tex]

[tex]Pr = \frac{3}{36}[/tex]

Answer:

50.24 or [tex]16\pi[/tex]

Step-by-step explanation:

N/A

Answer:

9 meters

Step-by-step explanation:

To find the area of a rectangle you do length times width. To find a side length, or the width divide the area by the length. 99/11=9.

The width is 9 meters.

Answer:

Four-thirds

Step-by-step explanation:

If you graph the first equation on desmos, then graph the equation x = -1, the intersection is at 1.333333, making the answer 4/3.

The Limit of f (x) as x approaches negative 1 is 4/3, the correct option is C.

A function is a law that relates a dependent and an independent variable.

f(x) = x² - (1/3)x    x ≠ -1

    = -1                  x = -1

[tex]\lim_{x \to \ -1} f(x)[/tex] = (-1)² - (1/3)(-1)

                      f(x) = 1 + (1/3)

                      f(x) = 4/3

To know more about Function

https://brainly.com/question/12431044

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Answer:

B =30 yd²

Step-by-step explanation:

total area

= area of rectangle + area of triangle

=(6*4)+(1/2 * 3 * 4)

=30

Answer:

30

Step-by-step explanation:

The area formula for trapezoid- A=1/2*h*(b1+b2)

So- 1/2*4*(6+9)

Answer:

3.88

Step-by-step explanation:

$57 multiplied by 7%

Answer:

see below

Step-by-step explanation:  5 23  8 03

the lenght of the longer leg of a right triangle is 9 ft longer than the lenght of the shorter leg x. The hypotenuse is 9 ft shorter than twice the lenght of the shorter leg.

shorter leg    = x

longer leg     = x + 9

hypotenuse  =  2x - 9

Pythagorean theorem  =    a² + b²  = c²

             shorter-leg² + longer-leg² = hypotenuse²

                         x²  +  (x+9)²  = (2x - 9)²                  solve for x

                  x² +  (x+9) (x+9)  =  (2x - 9)(2x - 9)

                 x² +  (x²+18x+81)  =  (4x² - 36x + 81)

                       (2x²+18x+81)  =  (4x² - 36x + 81)

                                          0 =   2x² -54x

                                          0 =  x(2x - 54)  

                           0 = x      and         0 = 2x -54  

                                                       54 = 2x

                                                      27 =  x

shorter leg    = 27        

longer leg     = 36

hypotenuse  =  45

divided all the values by 9 and you get a 3, 4, 5  right triangle, so the answer checks correct  

Answer:

ez the answer is 360000000

Step-by-step explanation:

Answer:

the answer is 360000000

Step-by-step explanation:

Answer:

Step-by-step explanation:

R=21

Answer:

Since the calculated F=  2.8657 does not lie in the critical region  F (2,2)≥ 19 we conclude that there no difference between the means.

Since the calculated F=  205.0819  lies in the critical region F(1,2) ≥ 18.51  we conclude that there is a difference between the standard deviations of the three groups.

The F- statistic for the observed data is 0.101  as calculated by F- test in excel.

Step-by-step explanation:

To conduct an ANOVA randomization test we perform anova without replication in excel.

The data for the test is

                            Mean    Standard Deviation Sample Size

Never

Played Football 7602.5          1074                   25

FB with no History   6459.2         779.9                  25

FB with Concussion 5734.6       593.4                   25

Total                 6598.8      1133.5                  75

Anova: Two-Factor Without Replication    

SUMMARY Count Sum Average Variance

Row 1 2 8676.5 4338.25 21310656.13

Row 2 2 7239.1 3619.55 16127224.25

Row 3 2 6328 3164 13215968.72

Column 1 3 19796.3 6598.766667 886871.7433

Column 2 3 2447.3 815.7666667 58708.90333

ANOVA Table  

Source           Sum of     Degrees     Mean

of Variation      Square    of freedom  Squares

                            SS     df          MS              F P-value

B/w Rows 1401945.703 2 700972.8517 2.8657 0.259

B/w Col      50164633.5 1 50164633.5 205.0819  0.00484

Error     489215.59         2 244607.795                          

Total 52055794.79 5    

Set up the null and alternate hypotheses :

H0 ; there's no difference between the means and

there's no difference between the standard deviations

against the claim

Ha: there's a difference between the means and

there's  a difference between the standard deviations

The significance level is chosen at 0.05

The test statistics to use are

F1= estimated variance from Between Means/  estimated variance from Error SS

F1= s1²/s3²

F1= estimated variance from Between Standard Deviations /  estimated variance from Error SS

F2- s2²/s3²

with υ1= (2,2)  and υ2(1,2) degrees of freedom.

The critical regions for F (2,2)≥ 19 for 0.05 significance level

and F(1,2) ≥ 18.51  for 0.05 significance level

Since the calculated F=  2.8657 does not lie in the critical region  F (2,2)≥ 19 we conclude that there no difference between the means.

Since the calculated F=  205.0819  lies in the critical region F(1,2) ≥ 18.51  we conclude that there is a difference between the standard deviations of the three groups.

The F- statistic for the observed data is 0.101  as calculated by F- test in excel.

Answer:

B .75 - 7

Step-by-step explanation:

Answer:

C 30 in

Step-by-step explanation:

set a proportion: 36/12 = x/10 => x = 36 × 10 ÷ 12 = 30

Answer:

516 in.³

Step-by-step explanation:

14 · 6 · 4

336 in.³

10 · 6 · 3

180 in.³

336 in.³ + 180 in.³

516 in.³

Answer:

the answer is probably 5

Answer:

If an item is x dollars and 20% discount is applied, the new price will be: 0.8x

Step-by-step explanation:

100 - 20%(20) = 80

80 = 80% or 0.8

So, the remaining of the price of x will be 0.8x.

Answer:

4

Step-by-step explanation:

Multiply base times height for the area

Divide the area by 50

You cant have 3.888 bags so round up to get 4.

Answer: explain how crime contributes to social injustices

Step-by-step explanation:

Answer:

I think it should be the first or the second one

they both look the same

so choose either

Answer:

The 4th one ( graph #4)

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

35 in total, sliced into 7 equal parts (1 per week).

so, each weekly part is therefore 35/7 = 5.

Answer:

x == 9

Step-by-step explanation:

Angle at the vertex is half the difference of those at the intercepted arcs;

35 = 1/2(120-15x+5)

35 * 2 = 120-15x-5

70 = 115 - 5x

70 - 115 = -5x

-45 = -5x

x = 45/5

x = 9

Hence the value of x is 9

Answer:

The answer is A, France

Answer:

Spain settled taxes because of threats from France

Answer:

x = 5 and x = -3

Step-by-step explanation:

15 - 4x = x² - 6x

15 = x² - 2x

0 = x² - 2x - 15

Now if solved using quadratic formula the answer would be:

x = 5 and x = -3

Hope this helps!

Answer:

Answer:

A.) 2(-4) + 4(-4) + 3 = 7 -(-4) + 10

-8 -16 + 3 = 21

-24 + 3 = 21

-21 = 21

Answer= -1.

B.) 2(-2) + 4(-2) + 3= 7 -(-2) + 10

-4 -8 + 3 = 19

-12 + 3 = 19

-9 = 19

-2.1.

C.) 2(2) + 4(2) + 3 = 7 -(2) + 10

4 + 8 + 3 = 7 -2 + 10

15 = 15

1.

D.) 2(4) + 4(4) + 3 = 7 -(4) + 10

8 +16 + 3 = 7 -4 + 10

27 = 13

0.481.

[tex]\huge{ \mathrm{  \underline{ Answer} \:  \:  ✓ }}[/tex]

The Correct Option is :

C. Mirror

Because Candle, Flashlight, and Sun are luminous objects, but Mirror isn't a luminous object.

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

Answer:

D) 52

there is a 90 degrees angle and the one inside, it is less than 90 degrees so your answer is 52