a right triangle has side lengths 8 15 and 17 as shown below use these lengths to find tan B sin B and cosine B​

Answer:

(a) Regression Equation : x = 6.33333y + 38.6875,

(b) Test Score will be about 89.4% if student sleeps 8 hours a night

Step-by-step explanation:

Using a regression calculator your equation should be as follows, where x = test scores, and y = average sleep.

(a) Solution : x = 6.33333y + 38.6875

We can check if this equation is ' suitable ' by plugging in the value 7 for y, and expecting an outcome of around 88 percent ...

x = 6.33333(7) + 38.6875 = 44.33331 + 38.6875

= 83.02061% - this may seem a bit too off, but it is predictable

Now let's plug in 8 for y, as to calculate the percent when a student sleeps for 8 hours ...

x = 6.33333(8) + 38.6875 = 50.66664 + 38.6875

= 89.35414% ≈ 89.4%

(b) Solution : Test Score will be about 89.4%

Remember:

-When multiplying numbers with decimals just forget about the decimals for a second and pretend you are multiplying a 3 digit number times a 2 digit number.

-one digit at a time. Multiply going from right to left.

First:

-Multiply the 3 with the top numbers.

-Pretend you are seeing this:

5.72 (3)

- 2*3=6. 7*3=21. (carry the 2). 5*3 +2=17. (leave the 1).

Second:

-write below and move a digit to the left.

-pretend you are seeing this: 5.72(6).

- 2*6 =12. (carry the 1). 7*6 +1=43. (carry the 4) 5*6+4=34. (leave the 3).

Third: since in the problem the decimal is placed in the hundredths only once, place the decimal in the hundredths as your solution.

Your solution should be 360.36

Answer:

5191.2

Step-by-step explanation:

(4.2 x 103) x (1.3 x 10 - 1)

(432.6) x (13 - 1)

(432.6) x (12)

5191.2

Answer:

5191.2

Step-by-step explanation:

(4.2 x 103) x (1.3 x 10-1)

=432.6 ( 13 -1)

=432.6 x 12

=5191.2

Answer:

12 > n+3

Step-by-step explanation:

Complete Question

Riya is applying to her garden. She applies it at a rate of 25, 000 cm³ of mulch for every m² of garden space. At what rate is Riya applying mulch in m³/m²

Answer:

0.25m³/m²

Step-by-step explanation:

We are told the Riya sprays mulch at 250,000cm³ per m²

To find the rate at which Riya is spaying the mulch in m³/m² we would have to convert 250,00cm³/m² to m³/m²

1 cm³ = 1 × 10^-6m³

250,000 cm³ = x m³

Cross Multiply

1 cm³ × xm³ = 250,000cm³ × 1 × 10^-6 m³

X

x m³ = 250,000cm³ × 1 × 10^-6 m³/1 cm³

= 0.25m³

Therefore, the rate at which Riya is spraying the mulch = 0.25m³/m²

Answer:

0.25

Step-by-step explanation:

Answer:

[tex] \infty [/tex]

Step-by-step explanation:

If you meant infinity, that is the answer, I think you should elaborate on the question

Answer: 2 , b , (3-c)

Step-by-step explanation:

Given expression : 2b (3 – c)

We know that factors are the expression that gives the givrn or original expression by multiplying it to other expression.

Here , we can factorize the given expression as :

[tex]2\times b\times (3-c)[/tex]

So, the factors of [tex]2b (3 -c)[/tex]  is [tex]2 , b , (3-c)[/tex] as they are making the original expression together .

Answer:

case 1 = 4

case 2 = 9

case 3 = 16

The results are squares.

case 100 = 10201

solution:

case 1 = 2²

case 2 = 3²

case 3 = 4²

case 100 = 101²

101² = 10201

case 17 = 289

solution:

√289 = 17.

Step-by-step explanation:

breadth = 21 m

length = 63 m

w = 21 feet

l = 63 feet

l = 3w

P = 2(l + w)

168 = 2(l + w) : 2

84 = l  + w

replace l

84 = 3w + w

4w = 84

w = 84 : 4

w = 21 feet

l = 3w

l = 3×21 feet

l = 63 feet

Answer:

5.25

Step-by-step explanation:

so our equation would be f(5)+k(4)=36 then since she buys 3 forks we would plug in 3 for f so we get 3(5)+4k=36 which can be simplified to 4k=21 which si 5.25

Answer:

answer:3x

Step-by-step explanation:

4x15=60

60-17=43

4x10=40

43-40=3x

Answer:

Answer is 5000

Step-by-step explanation:

becaue when u multiple 5*100*10=5000

50*100=5000 so the answer is 5000

Answer:

This might help u........

Answer:

-64

Step-by-step explanation:

Answer:

-64

Step-by-step explanation:

Answer:

the answer is -6 mate ^^

Answer:

-6

Step-by-step explanation:

(-2/7-5/7)*(8/3*9/4)=

- 7/7 * 8*9/4*3

-7/7 * 8/4 * 9/3

-1*   2*3= - 6

Answer:

He would need 46 packs of nail

Step-by-step explanation:

1840/40

=46

Step-by-step explanation:

Hey, there!

See explanation in picture.

Hope it helps....

Answer:

The answer is

Step-by-step explanation:

In order to solve this question we use ratio and proportion.

From the question

$ 2.50 is the price of one gallon

To find the number of gallons that cost $16.2 , multiply $16.2 by one gallon and divide it by $ 2.50

That's

[tex] \frac{16.2 \times 1}{2.50} [/tex]

= 6.48

We have the final answer as

6 gallons

Hope this helps you

Answer:

1233

Step-by-step explanation:

Divide the total number by 2 because it's half

Answer:

barb has 3⁴ pennies

Step-by-step explanation:

We are told that ;

Bob has 3 pennies = 3

Betty has three times as many pennies as bob = 3 × 3 = 3²

Bill has three times as many pennies as Betty = 3 × 3² = 3³

Barb has three times as many pennies as bill = 3 × 3³ = 3⁴

Thus,barb has 3⁴ pennies

Answer:

3⁴ pennies or 81 Pennies

Step-by-step explanation:

Bob - 3¹

Betty - 3²

bill - 3³

barb - 3⁴

3*3*3*3 = 81

Answer:

(3.4/100)*115 = $3.91

Step-by-step explanation:

Divide by 100% and multiply by 115 (100%+15%)

Answer:

the answer is c i did the test again and got it right

Step-by-step explanation:

He mixed up the numerator and the denominator of the fraction which is the correct answer would be an option (C)

The slope of the line is defined as the angle of the line. It is denoted by m

Slope m = (y₂ - y₁)/(x₂ -x₁ )

Consider two points on a line—Point 1 and Point 2. Point 1 has coordinates (x₁,y₁) and Point 2 has coordinates (x₂, y₂)

On a coordinate plane, a line with a negative slope goes through points (0, 2) and (4, 0).

To determine the rate of change of the function,

He incorrectly selected the graph's point at (-1, 2.5).

Given that the graph passes through, Kelvin did not make this error (–1, 2.5)

He picked the wrong spot on the graph, (0, 2).

Given that the graph passes through, Kelvin did not make this error (0, 2)

We have that Kevin’s mistake is

He messed up the fraction's denominator and numerator.

He should have added -1 to 0 instead of subtracting it, which he did.

He cannot make a mistake here because the two are identical.

Hence, He mixed up the numerator and the denominator of the fraction which is the correct answer would be an option (C)

Learn more about Slope of Line here:

brainly.com/question/14511992

#SPJ2

Answer:  Bearing = 41.41°

Step-by-step explanation:

[tex]\tan \theta=\dfrac{opposite}{adjacent}\\\\\\\tan \theta=\dfrac{240}{320}\\\\\\.\quad \theta=\tan^{-1}\bigg(\dfrac{240}{320}\bigg)\\\\\\.\quad \theta =48.59^o[/tex]

Bearing is measured clockwise from North (90° on a Unit Circle = bearing of 0°)

Bearing = 90° - Ф

             = 90° - 48.59°

             = 41.41°

Answer:

7/12 belongs in the category 4

Answer:

980 Euro

Step-by-step explanation:

7/100  *  14,000.00= 7*140=980

Answer:

No solution.

Step-by-step explanation:

 x - 3y - 3 = 0

3x - 9y - 2=0

Multiply the first equation by - 3:

-3x + 9y + 9 = 0

Add this to the second equation:

0 + 0 + 7 = 0

0 = -7  , which is absurd so there is no solution to this system.