Factor this quadratic completely. (Write step by step please)

Answer: True

Step-by-step explanation: Because Im A Top G

assuming 4x+21=6x-23

then you can get x by doing

4x+21=6x-23

21=2x-23

44=2x

x=22

4x+21= 109

6x-23= 109

The scores on the statistics test was normally distributed with a mean of 86 and a standard deviation of 5. Jose scored a 93 on his test then 1.4% of the class scored less than he did.

A probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

The scores on the statistics test was normally distributed with a mean of 86, a standard deviation of 5, and Jose scored a 93 on his test.

We need to find the percentage of the class scored less than he did

z=(x-mean)/ S.D

=93-86/5

=7/5

=1.4

Therefore 1.4 percentage of the class scored less than Jose did.

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A) The type of variation between pitch and wavelength is an inverse variation. b) the pitch when the wavelength is 5 feet would be 132 hertz.

we know that the Inverse Variation is a relationship between two variables in which the product is a constant.

Let x be a pitch of a musical instrument

y be the wavelength

x*y=k

We need to find the value of k for x=220 hertz   and y=3 ft

Then x*y=k

220*3=k

k=660

And for x=165 hertz ,  y=4 ft

x*y=k

165*4=660

k=660

A) Therefore, the type of variation between pitch and wavelength is an inverse variation.

B) the pitch when the wavelength is 5 feet;

x=?

y=5 ft

k=660

x*y=k

Then solve for x

x=k/y

x=660/5

x=132 hertz

Part b) the pitch when the wavelength is 5 feet would be 132 hertz

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The complete question is;

"A musical instrument has a pitch of 220 hertz when the wavelength is 3 feet. When the wavelength is 4 feet, the pitch is 165 hertz. What is the type of variation between pitch and wavelength? What is the pitch when the wavelength is 5 feet? hertz"

Answer:

f(6) = 40

Step-by-step explanation:

f(x)=8x-8

f(6) means to evaluate the function at x = 6.

Substitute 6 for x, and evaluate the right side.

f(6) = 8(6) - 8

f(6) = 48 - 8

f(6) = 40

The fraction 1/3 is not equivalent to a terminating decimal

A terminating decimal can be defined as a decimal expressed in a finite number of figures.

It is also said to be a decimal having an end point.

Example;

1/ 2 is a terminating decimal having its value as 0. 5

Given the fraction;

1/ 3, the decimal value = 0. 333333333

It is not a terminating decimal as it has an indefinite decimal value.

Thus, the fraction 1/3 is not equivalent to a terminating decimal

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The area of the doghouse in square feet is calculated as 9 (13) ft2.

The formula to find the area of the dog house is 9(1/3) ft2

Area of the dog house = Length of the dog house width of the dog house

Area = (72 ft )  (83 ft )

Area = 7.82.3 ft*ft

Area = (566) ft2

Hence, the area becomes Area = 9 (13) ft2

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The value of x is equal to 16.

Let A and B be angles supplementary to each other, two angles are supplementary when the sum of its measures is equal to 180°. Mathematically speaking, the geometric system is represented by the following formula:

(7 · x + 6) + (5 · x - 18) = 180

12 · x - 12 = 180

12 · x = 192

x = 16

The solution to this equation is 16.

The statement is incomplete, correct form is shown below:

Let be A and B two angles that are supplementary to each other. The measures are (7 · x + 6)° and (5 · x - 18)°, respectively. Find the value of x.

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We get the expression 64√2 in the form 2ⁿ as 2⁶°⁵.

An expression is a way in which numbers are written.

It can be variables, constants or a combination of both.

We are given an expression:

64 √2

We know that:

64 = 2 × 2 × 2 × 2 × 2 × 2

64 = 2⁶

Also, we can write √2 as

√2 = 2⁰°⁵

We get that:

2⁶ × 2⁰°⁵

simplifying the expression, we get that:

= 2⁶⁺⁰°⁵

= 2⁶°⁵

Therefore, we get the expression 64√2 in the form 2ⁿ as 2⁶°⁵.

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Answer:

a. No

b. Yes

c. Yes

Step-by-step explanation:

Answer:

Step-by-step explanation:

By using cross mutliplication, there are 24 gallons in the water tank after 30 minutes.

According to the statement the water tank is full at constant rate, 10 % tank capacity per each 5 minutes. The tank has a capacity of 40 gallons. The gained capacity is determined by the following cross multiplication, where the water capacity is directly proportional to filling time:

x ∝ t

x = (n / 100) · V × (T / t)        (1)

Where:

x = [0.1 · (40 gal)] × (30 min / 5 min)

x = 24 gal

There are 24 gallons in the water tank after 30 minutes.

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Answer:

source?

Step-by-step explanation:

wiyhout one I cannot help you, best of luck!

Answer:

Step-by-step explanation:

You just have to distribute all the equations. Start with the parenthesis. I'll do one for you. 2(x-5) +7 = x+8. Distribute 2(x-5) and you gest 2x-10+7=x+8. subtract x from the right and you get x-10+7=8. Combine like terms so you get x-3=8. Then add 3 on both sides and you get x=11.

A rectangle as the only parallelogram that can be inscribed in a circle.

A rhombus's opposite angles are congruent. If a rhombus has an angle, it has one pair of opposite angles that are and another pair of opposite angles that are. Because opposite angles are not supplementary, this rhombus cannot be encircled.

Because not all quadrilaterals can be inscribed in circles, they are not all cyclic quadrilaterals. If and only if the opposite angles of a quadrilateral are supplementary, it is cyclic.

A rectangle is the only parallelogram that can be inscribed in a circle. The important point is that the radius of the circle is R, because every rectangle can be inscribed in a (unique circle). (I believe.) One of the properties of a rectangle is that the diagonals bisect in the 'center,' which is also the circumscribing circle's center.

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Answer: b=8

Step-by-step explanation:

According to the census data, the population of China is more than the population of US by a factor 4.2

Given data

population of China = 1.3x10^9

population of US = 308,745,538

population of china = 1.3x10^9. can be rewritten as = 1,300,000,000

comparing the both figures representing population. we divide the population of China by the population of US

let the number of times the population of china is greater than population of US be x, such that

308,745,538 * x = 1,300,000,000

308,745,538x = 1,300,000,000

x = 1,300,000,000 / 308,745,538

x = 4.2106

x ≅ 4.2

We therefore say that the population of china is more than the population of US by a factor 4.2

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Answer:

y = 234t

Step-by-step explanation:

Divide the equation by t on both sides. See image.

 From the list of numbers presented:

 we can determine that this is a infinite serie.

      A sequence is an order of elements that are governed by a pattern, that is, it has variations between each element that remain constant and allow us to determine values before or after the known elements.

 A sequence maintains an order, and this numerical order can be finite or infinite, in the given case we have the following list:

1, 2, 4, 8, 16, 32

2ⁿ⁻¹

  In this series we have the initial value of the same, but we do not know the final value, although we know its behavior, we can say that this series has no end, it is an infinite serie.

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Answer:

A. 24.17.

Step-by-step explanation:

Perimeter of given triangle

= 4 + 4.5 + 6

= 14.5.

3:5 = 14.5 : P     where P is perimeter of new triangle

3/5 = 14.5/P

3P = 5*14.5

P = 14.5 * 5 / 3

  = 24,166667

  = 24.17.

The value of both x and y are 6 degrees in the given figure of arrangement.

What is angle bisector ?

angle bisector is the line which divides the given angle into two equal parts.

a) Here, the line RQ is the angle bisector of angle ∠WRV that is RQ line divides the angle ∠WRV into two equal parts and it is given that :

angle ∠WRQ is 48 degrees

and, angle ∠QRV is 7y+6

Therefore, ∠WRQ = ∠QRV

7y+6 = 48

7y = 48-6

7y = 42

y = 6 degrees

b) It is given that CR is perpendicular to PR that is angle ∠CRP will make 90 degrees and it is given as :

∠CRP = 13x + 12 degrees

90 = 13x + 12

13x = 78

x = 6 degrees

Therefore, the value of both x and y are 6 degrees.

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Answer:

show working

Step-by-step explanation:

you know the area of a rectangle or square is length x width, we do the same here.

so we have a length of (x+5) and because its a square we do (x+5)(x+5) which is

[tex] {x}^{2} + 10x + 25[/tex]

and we know the area of the square is 30 so we make the expression above equal to 30 and take 25 away from both sides to get the wanted equation

Answer:

2 ≤ y

Step-by-step explanation:

2 ≤ y

Answer:

7 baskets

Step-by-step explanation:

in the first game, he shot 6 baskets so

34 - 6 = 28

she shot the same number for each of the 4 games,

so divide 28 and 4.

the answer is 7

hope this helps

Using it's concept, it is found that the percentile of 7 cakes is the 67th percentile.

When a measure is in the xth percentile of a data-set, it is greater than(or equal) x% of the measures and lesser than (100 - x)%.

In this problem, we have that:

Hence, the percentile of the measure 8 is found as follows:

8/12 = 67th (rounded).

The percentile of 7 cakes is the 67th percentile.

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Answer:

FEG: 70 degrees

HEG: 110 degrees

Step-by-step explanation:

vertical angles are the same, and for supplementary angles you subtract 180, so likes for FEG you subtract 110 from 180, and for HEG its just the same thing

The solution for the expression ((8p² - 2s³) / m ) + ((58p² - 2s³) / m) + ((58p² - 2s³) / ( m + 5)) is 196.72

Given,

The expression: ((8p² - 2s³) / m ) + ((58p² - 2s³) / m) + ((58p² - 2s³) / ( m + 5))

Where,

Value of p is given as 3

Value of s is given as 2

Value of m is given as 4

Then,

((8p² - 2s³) / m ) + ((58p² - 2s³) / m) + ((58p² - 2s³) / ( m + 5))

= (8 x 3² - 2 x 2³) / 4 + (58 x 3² - 2 x 2³) / 4 + (58 x 3² - 2 x 2³) / 4 + 5

= (8 x 9 - 2 x 8) / 4 + (58 x 9 - 2 x 8) / 4 + (58 x 9 - 2 x 8) / 9

= (72 - 16) / 4 + (522 - 16) / 4 + (522 - 16) / 9

= 56 / 4 + 506 / 4 + 506 / 9

= 14 + 126.5 + 56.22

= 196.22

Therefore, the solution for the expression ((8p² - 2s³) / m ) + ((58p² - 2s³) / m) + ((58p² - 2s³) / ( m + 5)) is 196.72

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The equation for the vertical translation of y=f(x).2/3 unit down is y=f(x)-2/3.

Using equations of the form y=f(x), you may be able to modify the graph in various ways. For example, you can move the chart up, down, left, or right, flip it around the x or y-axis, or stretch or shrink it vertically or horizontally. Understanding these transformations makes it easy to graph different functions. Start with a "basic model" and apply a series of modifications to change it to the desired function.

A point on the graph of y=f(x) has the shape (x,f(x)).

The points on the graph of y=f(x)-2/3 are of the form (x,f(x)-2/3).

So, the graph for y=f(x) -2/3 is the same as the graph for y=f(x) shifted down by 2/3 units.

The new equation is:

y=f(x)-2/3

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The functions are express as follows:

A composite functions is gotten from the combination of two or more functions.

Therefore,

(rs)(4) = r(4) × s(4)

r(x) =  2√x

s(x) = √x

Hence,

r(4) = 2√4 = 2 × 2 = 4

s(4) = √4 = 2

Therefore,

(rs)(4) = r(4) × s(4) = 4 × 2 = 8

(r / s) (3) = r(3) / s(3)

r(3)  = 2√3

s(3) = √3

Hence,

(r / s) (3) = r(3) / s(3) = 2√3 / √3 = 2

Therefore, the functions are express as follows:

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