The fraction four fifths is equivalent to what percent

Answer:

B.   B = 70.5° or B' = 109.5°

Step-by-step explanation:

(sin 45°)/13.5 = (sin B)/18

sin B = (18 * sin 45°)/13.5

sin B = 0.9428

B = sin^-1 0.9428

B = 70.5°

B' = 180° - 70.5°

B' = 109.5°

Answer:

Length = 9 inches

Width = 13 inches

Step-by-step explanation:

Since width is 4 inches more than the length, we can let length be x, and so width would be x + 4

So we can say;

Perimeter = 2(L + W)

44 = 2{ (x) + (x+4) }

44 = 2 (2x + 4)

44 = 4x + 8

44 - 8 = 4x

36 = 4x

36/4 = x

9 = x

Since Length = x, length = 9

and since width = x + 4, width = 9 + 4 = 13

Hope this helps!

Answer:

119°

Step-by-step explanation:

51+180-112= 119°

------

We know that,

[tex]\sf\purple{Sum\:of\:angles\:on\:a\:straight\:line}[/tex] = 180°

➡ ∠ C + 112° = 180°

➡ ∠ C = 180° - 112°

➡ ∠ C = 68°

Also,

[tex]\sf\pink{Sum\:of\:angles\:of\:a\:triangle}[/tex] = 180°

⇝ ∠ A + 51° + 68° = 180°

⇝ ∠ A + 119° = 180°

⇝ ∠ A = 180° - 119°

⇝ ∠ A = 61°

Again,

[tex]\sf\blue{Sum\:of\:angles\:on\:a\:straight\:line}[/tex] = 180°

✒ ∠ A + ∠ B = 180°

✒ 61° + ∠ B = 180°

✒ ∠ B = 180° - 61°

✒ ∠ B = 119°

Hence, the measure of angle B is 119°.

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

Answer:

60º

Step-by-step explanation:

The angles are congruent

and are all 60º

Answer:

its the first one

Step-by-step explanation:

Answer:

X is a binomial random variable

Then the condition is met

Step-by-step explanation:

Sample size   n₁  = 400

X represents the number of brand-name lightbulbs)

P(X) = 44/400

P(X) = 0,11

X  is a binomial random variable it only could be either no defective or defective ( only two conditions or values).

To make use of the condition of approximation of binomial distribution to a normal distribution it is required that the products:

p*n  =  0,11*400  =  44      and    q  =  1  - 0,11   q =  0,89

q*n  =  0,89 * 400  =  356

both  p*n  q*n  are greater than 5.

Then the condition is met

Answer:

c

Step-by-step explanation:

Answer:

B. 10

Step-by-step explanation:

4, 11, 6, 9, 23, 24, 6, 19

4, 6, 6, 9, 11, 19, 23, 24

9 + 11 = 20

20 ÷ 2 = 10

Answer:83.3

Step-by-step explanation:

Answer:

180°

Step-by-step explanation:

It will be answer ...............

Answer: 0.125

Step-by-step explanation:

1/8 = 0.125 in decimal form

Answer:

A.

Lateral area (LA) = 324 cm²

Surface area = 432 cm²

Step-by-step explanation:

✔️Lateral area of the triangular prism = perimeter of the base (P) × height of prism (L)

Perimeter (P) = 9 + 12 + 15

Perimeter (P) = 36 cm

height of prism (L) = 9 cm

Lateral area (LA) = 36 × 9 = 324 cm²

✔️Surface area = bh + LA

b = 9 cm

h = 12 cm

LA = 324 cm²

Surface area = 9*12 + 324

= 108 + 324

Surface area = 432 cm²

Answer:

P(A and B) = 1/5 = 0.2

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, we want to find the probability of taking a number that is even and a multiple of 4.

We have the following sample space, of five numbers: {1,2,3,4,15}.

One of these numbers, 4, is even and a multipled of 4.

P(A and B)

1 out of 5. So

P(A and B) = 1/5 = 0.2

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

1 hour = 6 pages

So,

5 hours = 6×5

ㅤㅤㅤㅤ= 30 pages

therefore, She writes 30 pages in 5 hours.

Answer:

30 pages

Step-by-step explanation:

This can be written as an simple ratio (x/y), a ratio of 6/1

X= is the number of pages

Y= the hour(s)

He can write 6 pages in 1 hour, now we have to find how many pages he can write in 5 hours

This can be write this as an equation, we already have the first ratio and we know the Y value of the second ratio which is 5

6/1= x/5

To find X or how many pages he can write in 5 hours, you have to cross multiply and you will get

30=1x or x=30

So he can write 30 pages in 5 hours

Answer:

5 men should be subtracted.

Step-by-step explanation:

This question is solved by proportions, using a rule of three.

As these measures(number of men needed and time) are inversely proportional, we multiply the lines instead of cross multiplication.

How many men should be working to complete the work in 32 days?

20 men - 24 days

x men - 32 days

Then

[tex]32x = 20*24[/tex]

[tex]x = \frac{20*24}{32}[/tex]

[tex]x = 15[/tex]

How many men should be subtracted?

There are 20 to complete in 24 days.

15 are needed to complete in 32 days.

20 - 15 = 5

5 men should be subtracted.

Answer:

y= 2x-3

Step-by-step explanation:

to find the slope you use rise over run to get 2. to check to see the correct equation replace x with any of the x values in the chart and if you get the same y values as the chart then your equation is correct.

Answer:

Common factor

Factor by grouping

Factor by grouping

−

2

−

2

+

1

-x^{2}-2x+1

−x2−2x+1

−

1

(

2

+

2

−

1

)

{\color{#c92786}{-1(x^{2}+2x-1)}}

−1(x2+2x−1)

Solution−

-1(x²+ 2x-1 )

Answer:

2x²–7x–2

Step-by-step explanation:

[tex] = 2 {x}^{2} - 11 - (7x - 9) \\ = 2 {x}^{2} - 7x - 2[/tex]

Answer:

A. flipping a coin to decide whether test subjects should use their left or right hand

Step-by-step explanation:

Since a coin has two outputs: heads or tails, it it has a binomial distribution

Answer:

Okay, just ask on here maybe

Answer:

I don't know the answer

plss ask some one else

Answer:

the answer is 35 mi

Step-by-step explanation:

28 squared = 784

21 squared = 441

784+441 = 1225

Square root of 1225 is 35

Carson = C

Hanford = H

Ridgewood = R

CR²=CH²+HR² <=>

<=> CR²=28²+21²=1225 <=> CR=√1225=35

Answer:

(-5, 5)

Step-by-step explanation:

Answer:

the answer is d

Step-by-step explanation:

Answer:

[tex]c)\ 45^\circ[/tex]

Step-by-step explanation:

Given

A semicircle divided into 8 parts

Required

Angle that can be measured with the piece

First, we calculate the minimum angle that can be calculated.

[tex]\theta =\frac{Semi\ circle}{8}[/tex]

[tex]Semicircle = 180^\circ[/tex]

So, we have:

[tex]\theta =\frac{180^\circ}{8}[/tex]

[tex]\theta =22.5^\circ[/tex]

This implies that all angles that can be measured using the piece must be a multiple of 22.5 not greater than 180 degrees (i.e. not greater than the semicircle)

So, we have:

[tex]\theta =22.5^\circ,\ 45^\circ,\ 67.5^\circ,\ 90^\circ,\ 112.5^\circ,\ 135^\circ,\ 157.5^\circ,\ 180^\circ[/tex]

From the list of options, only 45 degrees appear in the possible values of [tex]\theta[/tex]

Hence:

[tex]\theta = 45^\circ[/tex]

Answer:

Each question has only one correct answer and the student is equally likely to choose any of the four choices.

Answer:

517.5 mi^2

Step-by-step explanation:

Divide shapes into 3 shapes ( 1 triangle and 2 rectangles

b = 17

h = 25

Area of triangle =  Bh

A =  (17)(25)

A = 212.5 mi^2

Area of 1st rectangle = lw = 17(9) = 153 mi^2

Area of 2nd rectangle = lw = 19(8) = 152 mi^2

Area of figure = 212.5 +153 + 152 = 517.5 mi^2