What is the absolute value of 9? -3?


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Answer:

4/20

Step-by-step explanation:

20 %

Percent means out of 100

20/100

Divide top and bottom by 10

2/10

We want the denominator to be 20 so multiply the top and bottom by 2

4/20

For this case we must find a fraction equivalent to 20%

We have to:

[tex]\frac {1} {20} =[/tex] 0.05 * 100% = 5%

[tex]\frac {2} {20} =[/tex] 0.1 * 100% = 10%

[tex]\frac {4} {20} =[/tex] 0.2 * 100% = 20%

[tex]\frac {5} {20} =[/tex] 0.25 * 100% = 25%

Answer:

[tex]\frac {4} {20}[/tex]

Option C

[tex]4x^2 + 8x - 32 = 0\\x^2+2x-8=0\\x^2+2x+1-9=0\\(x+1)^2=9\\x+1=3 \vee x+1=-3\\x=2 \vee x=-4[/tex]

For this case we must solve the following expression by completing squares:

[tex]4x ^ 2 + 8x-32 = 0[/tex]

We divide between 4 on both sides of the equation:

[tex]x ^ 2 + 2x-8 = 0[/tex]

We add 8 to both sides of the equation:

[tex]x ^ 2 + 2x = 8[/tex]

We divide the middle term between 2 and square, this we add to both sides of the equation:

[tex]x ^ 2 + 2x + (\frac {2} {2}) ^ 2 = 8 + (\frac {2} {2}) ^ 2\\x ^ 2 + 2x + 1 ^ 2 = 8 + 1\\x ^ 2 + 2x + 1 ^ 2 = 9\\(x + 1) ^ 2 = 9[/tex]

We apply root to both sides:

[tex]x + 1 =\pm \sqrt {9}[/tex]

We have two roots:

[tex]x_ {1} = \sqrt {9} -1 = 3-1 = 2\\x_ {2} = - \sqrt {9} -1 = -3-1 = -4[/tex]

Answer:

[tex]x_ {1} = 2\\x_ {2} = - 4[/tex]

Answer:

- 1

Step-by-step explanation:

The average rate of change of f(x) in the close interval [ a, b ] is

[tex]\frac{f(b)-f(a)}{b-a}[/tex]

here [ a, b ] = [ - 4, 1 ]

From the graph

f(b) = f(1) = - 1

f(a) = f(- 4) = 4

average rate of change = [tex]\frac{-1-4}{1-(-4)}[/tex] = [tex]\frac{-5}{5}[/tex] = - 1

ok i think your answer will be from least to greatest it would be this 3 1/5, 3.1, 3.5, 4.2

Hope i helped let me know if i got it right if not i am very sorry.

The order of four line segments from least to greatest is 3.1, 3.2, 3.5, 4.2  or 3.1. 3 1/5, 3.5, 4.2.

A number is a mathematical entity that can be used to count, measure, or name things. For an example, 1, 2, 56, 2.6, 34 etc. are the numbers.

We have:

The lengths in centimetres of four line segments are:

3.1, 3.5, 3 1/5, 4.2

We can write 3 whole 1/5 as 16/5 or 3.2

3 1/5  = 3.2

3.1, 3.5, 3.2, 4.2

Order from least to greatest:

3.1, 3.2, 3.5, 4.2   or

3.1. 3 1/5, 3.5, 4.2

Thus, the order of four line segments from least to greatest is 3.1, 3.2, 3.5, 4.2  or 3.1. 3 1/5, 3.5, 4.2.

Learn more about the number here:

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Answer:

y = -x - 3

Step-by-step explanation:

Plug in -1 for x and your result will come out to 1 because of that double negative [-(-1) = 1]. Next, deduct 3 from 1 to get -2.

I am joyous to assist you anytime.

Answer:

(a) Plan B, $4 more

(b) 140, Plan A

Answer:

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}y=x+3&(1)\\4x+y=18&(2)\end{array}\right\\\\\text{substitute (1) to (2):}\\\\4x+(x+3)=18\\\\(4x+x)+3=18\qquad\text{subtract 3 from both sides}\\\\5x=15\qquad\text{divide both sides by 5}\\\\x=3\\\\\text{put the value of x to (1):}\\\\y=3+3\\\\y=6[/tex]

Answer:

V≈2770.88

Step-by-step explanation:

The volume of a cylinder that has a radius of 7 and a height of 18 is 2770.88.

In order to find the answer, you should use the formula πr²h.

R means radius and H means Height.

V=πr2h=π·72·18≈2770.88472

Answer:

V = 882pi units^3

or approximately

2769.48 units^3

Step-by-step explanation:

The column of a cylinder is given by

V = pi * r^2 * h

We know the radius is 7 and the height is 18

V = pi * 7^2 *18

V =pi *49 *18

V =882 pi

If we want an approximate answer, we can approximate pi by 3.14

V = 3.14 * 882

V =2769.48

Answer:

The probability that the student scored an A is : 0.778

Step-by-step explanation:

There are 55% boys and 45% girls

So, No of boys is: 55/100

No of girls is: 45/100

So, total no of girls are: 45

Since 35% of the girls scored A on test

No of girls who scored A on test = 35

The probability that the student scored an A is: 35/45

The probability that the student scored an A is : 0.778

Answer:

[tex]P(A | B)=\frac{7}{9}=0.778[/tex]

Step-by-step explanation:

Let's call B the event that consists of the selected student being a girl

Call A to the event in which the selected student obtained an A.

Then we look for the probability that A will occur given that B. That is, we look for P(A | B)

This is a conditional probability and is calculated using the following formula

[tex]P(A | B)=\frac{P(A\ and\ B)}{P(B)}[/tex]

In this case

[tex]P(B)=0.45\\P(A\ and\ B)=0.35[/tex]

So

[tex]P(A | B)=\frac{0.35}{0.45}[/tex]

[tex]P(A | B)=\frac{7}{9}=0.778[/tex]

To determine the average number of pies eaten by each participant in a contest with 9 participants and 46 pies, divide the total pies by the total participants. The result is approximately 5.11 pies per person, indicating they ate very evenly with most having eaten about 5 pies.

The question asks us to find out how many pies each person ate in a pie eating contest with 9 participants and 46 pies consumed. To calculate this, we divide the total number of pies by the number of participants. Here's the calculation:

Divide 46 pies by 9 participants to get the average number of pies per person.

The result is approximately 5.11 pies per person.

Since we can't have a fraction of a pie eaten in a real context, it suggests that participants ate either 5 or 6 pies each, if they are very evenly matched.

Therefore, the best description of how many pies each person ate, assuming they are very evenly matched, would be approximately 5 pies per person, with some participants possibly having eaten 6 pies to account for the total of 46 pies.

B im pretty sure its B

Answer:

Step-by-step explanation:

Notice that the paragraph is describing some results they got of a recent survey. That is, they are giving specific statistical data about what people prefer.

So, this is an example of descriptive statistics. Remember that descriptive statistics is about using means, medians, standard deviation, percentages or any other stats that help to describe a phenomenom.

Therefore, the right answer is D.

Answer:

[tex]\$19,710[/tex]

Step-by-step explanation:

step 1

Find the volume of the composite figure

The volume of the composite figure is equal to the volume of the cube plus the volume of the square prism

so

[tex]V=15^{3}+15^{2}(45)[/tex]

[tex]V=13,500\ cm ^{3}[/tex]

step 2

Find the value of the figure

Multiply the volume by $1.46 per cubic centimeter

[tex]13,500(1.46)=\$19,710[/tex]

Answer:

3/4

Step-by-step explanation:

3/14 ÷ 2⁄7

Copy dot flip

3/14 * 7/2

We rewrite

3/2 * 7/14

Canceling a 7 from 7 and 14

3/2 * 1/2

Multiplying straight across

3*1 =3

2*2=4

3/4

For this case we must solve the following expression:

[tex]\frac {\frac {3} {14}} {\frac {2} {7}} =[/tex]

Applying double C we have:

[tex]\frac {3 * 7} {14 * 2} =\\\frac {21} {28} =[/tex]

for simplify we divide the numerator and denominator by 7, then we have:

[tex]\frac {\frac {21} {7}} {\frac {28} {7}} =\\\frac {3} {4}[/tex]

In decimal form we have to:

[tex]\frac {3} {4} = 0.75[/tex]

Answer:

[tex]\frac {3} {4} = 0.75[/tex]

Answer:

the probability is the event is certain to happen

Step-by-step explanation:

Answer:

This event is certain to happen.

The probability is 1.

Step-by-step explanation:

Probability theory aims to explain the chance of an event occurring. In this case, there are 3 yellow balls, 4 blue balls and 8 red balls. The total of balls will be 3 + 4 + 8 = 15

If a random ball is removed, it can be any of three colors. The color that has the most balls will have a higher chance of being chosen from the 15 totals.

Likelihood of drawing a red ball: 8/15

Probability of a yellow ball: 3/15

Blue ball probability: 4/15

The question explains that only one ball will be removed and explains that there are only 3 colors. Therefore, when removing a ball, it will certainly be one of three colors.

This can be confirmed by adding the probability of each ball: 8/15 + 3/15 + 4/15 = 15/15 = 1

Thus, if a primary ball is removed, it will certainly be one of three colors. Moreover we can say that chance of being red is greater than being blue, which is greater than being yellow.

Answer:

The correct option is C

Step-by-step explanation:

The given expression is:

=y²+7y+12/y²-3y-18

Break the middle term of both the numerator and denominator:

=y²+4y+3y+12/y²-6y+3y-18

Take the common from the expressions:

=y(y+4)+3(y+4)/y(y-6)+3(y-6)

=(y+3)(y+4)/(y+3)(y-6)

The same terms will be cancelled: Then we have,

=(y+4)/(y-6)

Therefore the correct option is C....

Answer:

A iS the answer i got it right on my test

Step-by-step explanation:

Y-4/Y-5

Answer:

The factors of 2q²-5pq-2q+5p are (2q-5p) (q-1)....

Step-by-step explanation:

The given expression is:

2q²-5pq-2q+5p

Make a pair of first two terms and last two terms:

(2q²-5pq) - (2q-5p)

Now factor out the common factor from each group.

Note that there is no common factor in second group. So we will take 1 as a common factor.

q(2q-5p) -1(2q-5p)

Now factor the polynomial by factoring out the G.C.F, 2q-5p

(2q-5p) (q-1)

Thus the factors of 2q²-5pq-2q+5p are (2q-5p) (q-1)....

Answer:

[tex]x=4.459[/tex]

Step-by-step explanation:

We have the following equation

[tex]2^{(x-1)} =11[/tex]

To solve the function, apply the equation [tex]log_2[/tex] on both sides of the equation

[tex]log_2(2^{(x-1)}) =log_2(11)[/tex]

Remember that

[tex]log_b(b)^x =x[/tex]

So

[tex](x-1) =log_2(11)[/tex]

[tex]x =log_2(11) + 1[/tex]

Finally

[tex]x=4.459[/tex]

Answer:

x = 4.46

Step-by-step explanation:

We are to solve the following expression:

[tex]2^{(x-1)}=11[/tex]

Taking the natural logarithm of both sides of the equation to remove the variable from the exponent. to get:

[tex] ln ( 2 ^ { x - 1 } ) = l n ( 1 1 ) [/tex]

[tex] ( x - 1 ) l n ( 2 ) = l n ( 1 1 ) [/tex]

Applying the distributive property:

[tex]xln(2)-1ln(2)=ln(11)[/tex]

Solving for x to get:

[tex]x=\frac{ln(11)}{ln(2)} +1[/tex]

x = 4.46

Answer:

34.4 cm

Step-by-step explanation:

The scale of the map is 1:500000

This means 1 cm in the map is equivalent to 500000 cm in actual.

So, first we need to convert the distance between the 2 towns in centimeters.

The distance between two towns is 172 km

172 km = 172 x 1000 meters = 172,000 meters

172,000 meters = 172,000 x 100 cm = 17,200,000 cm

500,000 cm in actual on the map = 1 cm

1 cm in actual on the map = [tex]\frac{1}{500000}[/tex] cm

17,200,000 cm in actual on the map will be = [tex]\frac{1}{500000} \times 17200000 = 34.4[/tex] cm

Thus, 172 km actual distance would be represented by 34.4 cm on the map

The distance between two towns on a map, with a scale of 1:500000 is 34.4 cm.

The question asks us to calculate the distance, in centimeters, between two towns on a map given the scale of the map is 1:500000, and the actual distance between the two towns is 172 km. First, we convert the actual distance from kilometers to centimeters by multiplying 172 km by 100,000 (since 1 km = 100,000 cm). This gives us 17,200,000 cm. Then, we use the map's scale to find the map distance. The scale 1:500000 means that 1 cm on the map equals 500000 cm in the real world. Therefore, we divide the real-world distance in centimeters by the scale factor (17,200,000 cm / 500000 = 34.4 cm). Thus, the distance between the two towns on the map is 34.4 cm.

Answer:

52

Step-by-step explanation:

2 kg is the same as 2000 g.

2000 g / 38 g = 52.6

There will be 52 bags (with some cinnamon left over).

Answer: The answer is D. 10! its correct I checked.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Acceleration due to gravity is the rate at which an object changes its velocity due to the force of gravity.On Earth, the average acceleration due to gravity is -9.81 m/s².The acceleration due to gravity is ALWAYS negative.  Any object affected only by gravity (a projectile or an object in free fall) has an acceleration of -9.81 m/s², regardless of the direction.

The acceleration is negative when going up because the speed is decreasing.  The acceleration is negative when going down because it is moving in the negative direction, down.  Even at the top of the path where the instantaneous speed is 0 m/s, the acceleration is still -9.81 m/s². ...

Answer:

1. B. a=14, b=2

2. D. a=1, b=1.4

Step-by-step explanation:

The exponential growth function can be represented as

[tex]y=a\cdot b^x,[/tex]

where b is the growth factor.

1. When the function has equation

[tex]g(x)=14\cdot 2^x,[/tex]

then

[tex]a=14,\\ \\b=2[/tex]

The initial amount is the value of the function at x=0:

[tex]g(0)=14\cdot 2^0=14\cdot 1=14[/tex]

The growth factor is b=2

2. When the function has equation

[tex]f(t)=1.4^t,[/tex]

then

[tex]a=1,\\ \\b=1.4[/tex]

The initial amount is the value of the function at t=0:

[tex]f(0)=1.4^0=1[/tex]

The growth factor is b=1.4

Answer:

[tex]m=-\frac{4}{5}[/tex]

Step-by-step explanation:

We can take 2 arbitrary points in the graph and solve for slope using the formula shown below.

Note: we will use the 2 points (2,-3) & (-3,1)

Where x_1 = 2, y _1 = -3  and  x _ 2 = -3 and y _ 2 = 1

The formula:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Let's plug the numbers and find the slope:

[tex]m=\frac{1-(-3)}{-3-2}\\m=\frac{4}{-5}\\m=-\frac{4}{5}[/tex]

Hence, thsi is the slope.

Answer:

The equation is y= 2x+5

Step-by-step explanation:

Lets find the slope of the line through the points (-2,1) and (-4,-3).

where x1 = -2,  y1= 1,  x2= -4,  y2 = -3.

Now apply slope formula:

m= y2-y1/ x2-x1

m= -3-1/-4-(-2)

m = -4/-4+2

m= -4/-2

Divide the term by 2:

m = 2

Now we will apply point slope formula:

y-y1 = m (x-x1)

Now substitute the values in the formula:

y-1=2(x-(-2))

y-1 =2(x+2)

y-1=2x+4

Now combine the constants:

y= 2x+4+1

y=2x+5

So the equation is y= 2x+5 ....

Answer:

168°

Step-by-step explanation:

∠QRS is an angle formed by 2 chords of the circle and is half the measure of its intercepted arc QS, that is

m QS = 2 × 84° = 168°

Applying the inscribed angle theorem, the measure of arc QS is: 168°.

According to the inscribed angle theorem, the measure of an inscribed angle in a circle equals half of the measure of the intercepted arc.

Based on the inscribed angle theorem,

arc QS = 2(m∠QRS)

arc QS = 2(84)

arc QS = 168°

Therefore, applying the inscribed angle theorem, the measure of arc QS is: 168°.

Learn more about the inscribed angle theorem on:

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Answer:

n=4

Step-by-step explanation:

To solve combine your like terms.

You can start by adding 0.8 to both sides and subtracting 0.7n from both sides.

[tex]-0.8+1.4n=2+0.7n\\1.4n=2.8+0.7n\\0.7n=2.8[/tex]

Next, divide both sides by 0.7 to isolate for n.

[tex]0.7n=2.8\\n=4[/tex]

slope of DE would be [tex]\( m_{DE} = \frac{(2c - b)}{(0 - (-a))} = \frac{(2c - b)}{a} \).[/tex]

slope of FG would be[tex]\( m_{FG} = \frac{(0 - c)}{(0 - (a+b))} = \frac{-c}{-(a+b)} = \frac{c}{a+b} \).[/tex]

To find the slope of line segments DE and FG from a trapezoid on a coordinate plane, we can follow these steps:

1. Identify the Coordinates of Endpoints:

  - For DE, identify coordinates D and E.

  - For FG, identify coordinates F and G.

2. Use the Slope Formula:

  - The slope  m  of a line passing through two points [tex]\( (x_1, y_1) \) and \( (x_2, y_2) \) is given by \( m = \frac{(y_2 - y_1)}{(x_2 - x_1)} \).[/tex]

3. Calculate the Slope for DE:

  - Plug the coordinates of D and E into the slope formula.

4. Calculate the Slope for FG:

  - Plug the coordinates of F and G into the slope formula.

Given the coordinates in the image, let's calculate the slopes for DE and FG:

For DE:

- Let's say D has coordinates  (-a, b)  and E has coordinates (0, 2c)

- The slope of DE would be [tex]\( m_{DE} = \frac{(2c - b)}{(0 - (-a))} = \frac{(2c - b)}{a} \).[/tex]

For FG:

- Let's say F has coordinates[tex]\( (a+b, c) \)[/tex] and G has coordinates  (0, 0) .

- The slope of FG would be[tex]\( m_{FG} = \frac{(0 - c)}{(0 - (a+b))} = \frac{-c}{-(a+b)} = \frac{c}{a+b} \).[/tex]

Answer:

The correct answer option is B. (x - 1).

Step-by-step explanation:

We are to determine the factor of the polynomial function [tex]f(x)[/tex] which is graphed on the given coordinate plane.

We know that if the zeros (or intercepts) of an equation are [tex] r _ 1 [/tex] and [tex] r _ 2 [/tex] then the factors for this equation will be [tex] ( x - r _ 1 ) [/tex] and [tex]( x - r _ 2 ) [/tex].

From the graph, we can see that it intercepts the x axis at [tex]1[/tex] and [tex]6[/tex]. So the roots will be [tex](x-1)[/tex] and [tex](x-6)[/tex].

Therefore, the correct answer option is B. (x - 1).

Answer: SECOND OPTION.

Step-by-step explanation:

We can verify each option by making eac equal to zero and solving for "x":

First option

[tex]x-3=0\\x=0+3\\x=3[/tex]

The first option is not a factor of the polynomial function, because the parabola does not intersect the x-axis at [tex]x=3[/tex].

Second option

[tex]x-1=0\\x=0+1\\x=1[/tex]

The second option is a factor of the polynomial function, because the parabola intersects the x-axis at [tex]x=1[/tex].

Third option

[tex]x+1=0\\x=0-1\\x=-1[/tex]

The third option is not a factor of the polynomial function, because the parabola does not intersect the x-axis at [tex]x=-1[/tex].

Fourth option

[tex]x+3=0\\x=0-3\\x=-3[/tex]

The fourth option is not a factor of the polynomial function, because the parabola does not intersect the x-axis at [tex]x=-3[/tex].