name four decimals whose values between 0.63 and 0.8

Answer:

i believe it's A bc 8 cm is too long to reach 4 cm

The area, in square units, bounded by f(x)= − 6x−13 and g(x)= − 7x+5 over the interval [33,34] is 1172.5

Area of bounded lines

f(x) = y₁ and g(x) = y₂

Area  = \(\int\limits^a_ b{y_{2} - y_{1} } \, dx\)

y₂ - y₁ = -7x + 5 - (-6x-13)

y₂ - y₁ = -7x + 5 + 6x + 13

y₂ - y₁ = -x + 18

Area = \(\int\limits^a_b {-x+18} \, dx\)

Area = [- x²/2 + 18x ]\(\left \{ {{a=34} \atop {b=33}} \right.\)

Area = [-(34)²/2 + 18 × 34 - (-(33)²/2 + 18 × 33]

Area = [ -578 + 612 + 544.5 +594]

Area = 1172.5

Area of the bounded region is 1172.5 sq. units

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Answer:

Horizontal distance between the wall and the bottom of ramp = 25.4 inches.

Step-by-step explanation:

Pythagorean theorem:

          AB  -> wall ;  AB =  14 inches    

         AC -> Wooden plank ; AC = 29 inches

        BC -> horizontal distance between the wall and the bottom of ramp(pank).

           Pythagorean theorem,

                       \(\boxed{\bf base^2 + altitude^2 = hypotenuse^2}\)

                         BC² + AB² = AC²

                           BC² + 14² = 29²

                          BC² + 196 =  841

                                     BC² = 841 - 196

                                             = 645

                                       BC = √645

                                       BC = 25.4 inches

Horizontal distance between the wall and the bottom of ramp = 25.4 inches.

Given,

Length = 29 inches

Height = 14inches

Here,

Pythagorean theorem:

AB  -> wall ;  AB =  14 inches    

AC -> Wooden plank ; AC = 29 inches

BC -> horizontal distance between the wall and the bottom of ramp (plank).

Pythagorean theorem,

Base²  + Perpendicular² = Hypotenuse²

BC² + AB² = AC²

BC² + 14² = 29²

BC² + 196 =  841

BC² = 841 - 196

= 645

BC = √645

BC = 25.4 inches

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Answer:

27.75$

Step-by-step explanation:

37-----100%

x-------25%

x=(25×37)÷100

x=9.25

total = 37-9.25=27.75

her new total will be 27.75$

Answer:A

Step-by-step explanation: because there is an association with the child’s hight and age so the answer is A ( plus I have did this before and got it wrong and the actual Answer was A when I picked B

Answer: A

Step-by-step explanation:

Not sure about part a, but the answer to b is the central configuration

Step-by-step explanation:

Answer:

$6.83

Step-by-step explanation:

37 x 59 = 2183

Because it is dollars you need to divide it by 100:

$21.83 - 15 = 6.83

The sides are 20 and 21 in   right triangle.

What defines a right triangle?

The term "right triangle" refers to a triangle with an interior angle of 90 degrees.

                 The hypotenuse, the side of the right triangle that is opposite the right angle and is also its longest side, and the height and base are the two arms of the right angle.The term "right triangle" refers to a triangle with an interior angle of 90 degrees. The hypotenuse, the side of the right triangle that is opposite the right angle and is also its longest side, and the height and base are the two arms of the right angle.

29² = x²  + (x+1)²

x²+ x² +2x +1 = 841

2x² +2x -840 =0

x² + x -420 =0

(x+21)(x-20)=0

x=20

the sides are 20 and 21

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Answer:

I think it's 34

Step-by-step explanation:

cuz you add 11 and 12 frequency

Answer:

....................,,.,.,.,.,.,.,.,..,.,.,.,.,.,.,...,.,.,.,.,.,.,.,..,.,.,.,.,.,.,.,,..,,.,.,..,.,.,.,,.

Step-by-step explanation:

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,..............................................

Answer:  A.) The area of the base is 16 pi cm²,

B.) The number of cubic centimeters is 112 pi cm³

C.)  The volume is  351.68 cm³

Step-by-step explanation:

Area is πr², 4 squared is 16.

V = bh

Multiply the area of the base by the height

16π × 7 = 112pi

The probability that the date sara chose is a prime number is 0.2.

Given that, sara chose a date from the calendar.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

Here, total number of outcomes = 30

Number of favourable outcomes = 6

Now, probability = 6/30

= 1/5

= 0.2

Therefore, the probability that the date sara chose is a prime number is 0.2.

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Answer:

22

Step-by-step explanation:

Answer:

The answer is B and C

Step-by-step explanation:

Answer:

c. k=4

Step-by-step explanation:

5 in 4 places is 20 4 is a constant variation

The value of constant of variation k is 4.

Since,  q varies directly as r.

                     \(q=kr\)

   Where k is constant of variation.

Substitute.\(q=20,r=5\) in above equation

          \(k=\frac{20}{5} =4\)

Thus, The value of constant of variation k is 4.

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Answer:

20 m

Step-by-step explanation:

2) t = -b/2a (FROM QUAD. FORMULA)

   t =  -20/2(-5)

   t = 4/2 = 2/1 = 2

t = 2, insert

h(2) = -5(2)² + 20(2)

h(2) = -20 + 40

h(2) = 20 m

VERTEX: (2,20)

Answer:

20m

Step-by-step explanation:

Answer:

A. & B. are the corect answers

Step-by-step explanation:

Answer:

A and B

x is \(\frac{1}{3}\) of y

AND

y is \(\frac{3}{4}\) of (x+y)

Step-by-step explanation:

x:y is 1:3

=>  y is bigger than x

=>  y is 3x bigger than x

=>  y = 3 lots of x

=>  \(y =\) \(3x\)

=>  \(\frac{y}{3}\) \(= x\)

=>  \(\frac{1}{3} y\) \(= x\)

So x is \(\frac{1}{3}\) of y

y is \(\frac{3}{4}\) of (x+y)

If x = 1 and y = 3 (substitute in values)

=>  3 is \(\frac{3}{4}\) of (4)

=>  3 is \(\frac{3}{4}\)(4)

=>  3 is (\(\frac{3}{4}\)x4)

=>  3 = 3

Therefore, y is \(\frac{3}{4}\) of (x+y) is true

So the answers are:

x is \(\frac{1}{3}\) of y

AND

y is \(\frac{3}{4}\) of (x+y)

Answer: 6(x+2)(x-5)

Step-by-step explanation:

1: Factor by grouping- A 6 can be distributed in all 3 terms, when we do this we get 6(x²-3x-10).

2: This is in the form 6(x²+bx+c). So, to continue factoring, just forget about the six for a while and find two factors of c that add up to b. These two factors are -5 and 2.

3: Fill in the blanks with either factor. (x+?)(x+?) We get (x+2)(x-5).

4: Bring back the 6 to the beginning of the equation to get a final answer of 6(x+2)(x-5).

Answer:

\(f^{-1}\)(x)=\(\sqrt[3]{x-1}\)

Step-by-step explanation:

Answer:

To find inverse, interchange the variables and solve for y

Step-by-step explanation:

(I put mines in a doc)

The scale factor is: 5/3.5 ≈ 1.43

The value of x = 12.

The scale factor is a numerical value used to describe the proportional relationship between two similar objects or figures. It is the ratio of the length of a corresponding side in one figure to the length of the same side in the other figure.

Thus, Scale factor = Dimension of the new shape ÷ Corresponding Dimension of the original shape

Therefore, we have:

Scale factor = J'H" / JH

= 5/3.5 ≈ 1.43

Using the scale factor, we can find x as shown below:

x = 8.4 * scale factor

x = 8.4 * 5/3.5

x = 12

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Answer:

see below

Step-by-step explanation:

\(y=-3(x-4)^2+2\)

\(x=-3(y-4)^2+2\)

\(x-2=-3(y-4)^2\)

\(\frac{1}{3}(2-x) =(y-4)^2\)

\(\sqrt{\frac{1}{3}(2-x)}=y-4\)

\(f^{-1}(x)=\sqrt{ \frac{1}{3}(2-x)}+4\)

The probability that student chosen at random is 16 years is 0.28.

The table shows the distribution of student by age in a high school with 1500 students. Therefore, the probability that randomly chosen student is  16 years can be found as follows:

Therefore,

probability = number of favourable outcome to age / total number of possible outcome

Hence,

probability that student chosen at random is 16 years =  420 / 150

probability that student chosen at random is 16 years = 0.28

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Answer:

The correct answer is the last one:

"She should square the radius and then multiply the result by 3.14"

Step-by-step explanation:

Answer:

The answer is D which says she should square the radius and then multiply the result by 3.14 or pi

Step-by-step explanation:

Took the review, and got 100 on Edge2021 <3

Hope this helped you c:

Answer:

Step-by-step explanation:

To answer your question, the correct image that shows triangle A dilated by a scale factor of 2 with a center at the origin is image number 4. This image clearly shows the triangle A being enlarged to twice its original size with the center of dilation at the origin. I hope this helps! Let me know if you have any other questions.

Answer:

D

Step-by-step explanation:

Answer:

2 nonreal solutions

Step-by-step explanation:

given a quadratic equation in standard form

ax² + bx + c = 0 (a ≠ 0 )

then the nature of the roots are determined by the discriminant

b² - 4ac

• if b² - 4ac > 0 then 2 real and irrational solutions

• if b² - 4ac > 0 and a perfect square then 2 real and rational solutions

• if b² - 4ac = 0 then 2 real and equal solutions

• if b² - 4ac < 0 then no real solutions

5x² - 2x + 6 = 0 ← in standard form

with a = 5 , b = - 2 , c = 6

b² - 4ac

= (- 2)² - (4 × 5 × 6)

= 4 - 120

= - 116

since b² - 4ac < 0

then there are 2 nonreal solutions to the equation

Answer:

The rate of the water current is 4mph

Step-by-step explanation:

Let c= the rate of the current in mph

18+c= the rate of the boat going downstream in mph

18-c= the rate of the boat going upstream in mph

t = time in hrs for both upstream and downstream trips

Going downstream:

33=(18+c)*t (1)

Going upstream

21=(18-c)*t (2)

From (1)

33=(18+c)*t

t=33/1(8+c)

Substitute t=33/(18+c) into (2)

21=(18-c)*t

21=(18-c)*33/(18+c)

Cross product

21(18+c)=33(18-c)

378+21c=594-33c

21c+33c=594-378

54c=216

Divide both sides by 54

54c/54=216/54

c=4

Therefore,

The rate of the water current is 4mph

Answer:

225

Step-by-step explanation:

200 25 period boo. let me know if you got it ok thank you.