Evaluate v(x) = 14 – 3x when x = -3,0, and 4.
v(-3) =
v(0) =
v(4) =

Answer:

Maggie is 13 years old.

Step-by-step explanation:

Maggie's age is: x

Maggie's brother's age is: 2x - 3

The sum of the ages = 36

x + 2x - 3 = 36

3x - 3 = 36

3x = 39

x = 13

Answer: Maggie is 13 years old.

Answer:

153.2 =x

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adjacent side/ hypotenuse

cos 40 = x/200

Multiply each side by 200

200 cos 40 = x/200 * 200

200 cos 40 =x

153.20888886=x

To the nearest tenth

153.2 =x

Answer:

AC = 153.2 m.

Step-by-step explanation:

cos(Ф) = adj / hyp

cos(40) = AC / 200

AC = cos(40) x 200

AC = 153.2 m

Answer:

4u2−4uv+5v2

Explanation:

Answer:

u2-6uv +5v2 +3u2+ 2uv

= 4u2 -4uv +5v2

Answer: x=-14, x=14

Step-by-step explanation:

The absolute value makes all the values turn from negative to positive. With absolute value, you will not have a negative response. Therefore, x=-14 and x=14.

Answer:

total cost of all seats : 61,940

Mean : 398

Median : 280 320 400 540 850

mode: no mode

I think this is right.

Answer:

1.449275362

Step-by-step explanation:

Answer:

$0.69

Step-by-step explanation:

Step 1:

$6.21 ÷ 9

Answer:

$0.69

Hope This Helps :)

Answer:

12 & 13

Step-by-step explanation:

trust me

Answer:

3 to 1

Step-by-step explanation:

Because the 6 is the bigger number but is also on the left which means the number on the right has to divide into the six therefore 3 to 1

Answer:

0.75 hour or 45 mins

Step-by-step explanation:

From the question, we are told that:

Speed of Train A = 84 miles per hour. Speed of Train B = 92 miles per hour.

Total speed travelled by both trains =

84mph + 92mph

= 176 mph

The distance between the two stations = 132 miles.

We are asked in the question to: find out how long after they leave their respective stations do the trains meet.

This means we should calculate the time

Time = Distance/ Speed

= 132 miles/176 miles per hour

= 0.75 hour

We can convert to minutes if we like

1 hour = 60 minutes

0.75 hour =

0.75 hour × 60 minutes/ 1 hour

= 45 minutes

Therefore, the trains meet after 0.75 hour or 45 minutes after they have left their respective stations.

Answer:

a=-4

Step-by-step explanation:

1) Isolate x for 2x+y=3 which will give us x=3-y/2

2) Substitute 3-y/2 in the equation -8x+ay=-11

3) Then we simplify

4) Isolate for y

5)Then we simplify in order to get -4

Answer:

B

0.388 centigrams :)

The equation of a line in slope intercept form with slope (-2/3) and point (10,-5) is y = (-2/3) - 1.

The slope is the rate of change of y-axis with respect to x-axis.

We know that equation of a line in slope intercept form is y = mx + b.

To find the y-intercept b we will substitute the value of m and point (x,y).

∴ The equation of the line in slope intercept form with slope -2/5 and points (10,-5) is,

-5 = -(2/5)×10 + b.

-5 = -4 + b.

b = -1.

So the given equation of the line is y = (-2/3)x - 1.

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Answer:

7,425 gallons of water

Step-by-step explanation:

Given:

A tank of,

Length = 16.5 ft

Width = 7.5 ft

Height = 8 ft

1 ft³ = 7.5 gallons of water

Required:

Gallons of water that will fill the tank

SOLUTION:

Find the volume of the tank:

Volume of the tank = length*width*height

Volume = 16.5*7.5*8 = 990 ft³

Convert 990 ft³ to gallons of water:

1 ft³ = 7.5 gallons

990 ft³ = [tex] 990*7.5 [/tex]

= 7,425 gallons of water

7,425 gallons of water will fill the tank of the given measurement.

Amount of water in tank is 7,425 gallon

Given that;

Sides of tank = 16.5 ft, 7.5 ft, 8 ft

1 ft³ = 7.5 gallon

Find:

Amount of water in tank

Computation:

Volume of tank = [(16.5)(7.5)(8)]

Volume of tank = 990 ft³

Amount of water in tank = [Volume of tank][7.5]

Amount of water in tank = [990][7.5]

Amount of water in tank = 7,425 gallon

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Answer:

10

Step-by-step explanation:

Because it is 90% and he shots 12 how much fat away is 90 for 100 it is 10

Answer:

14.99 ounces

Step-by-step explanation:

First, find the weight of the 2 cereal bags combined:

16.03 + 18.98

= 35.01

Subtract this from 50 to find the weight of the box, since 50 ounces is the combined weight of the box and the 2 cereal bags

50 - 35.01

= 14.99

So, the box weights 14.99 ounces

Answer:

[tex]\displaystyle x=\frac{-3+ \sqrt{15}}{2}\approx0.4365\text{ or}\\x=\frac{-3-\sqrt{15}}{2}\approx-3.4365[/tex]

Step-by-step explanation:

We are given the equation:

[tex]-2x^2-6x+3=0[/tex]

And we want to solve it using the quadratic formula:

[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

First, let's identify our coefficients.

The a is the coefficient in front of the x² term, so a = -2.

b is the coefficient in from of the x term, so b = -6.

And c is the constant so c = 3.

Substitute:

[tex]\displaystyle x=\frac{-(-6)\pm \sqrt{(-6)^2-4(-2)(3)}}{2(-2)}[/tex]

Simplify. -(-6) is just 6. (-6) squared is 36. -4(-2)(3) is 24. And 2(-2) is -4. So:

[tex]\displaystyle x=\frac{6\pm \sqrt{36+24}}{-4}[/tex]

Add:

[tex]\displaystyle x=\frac{6\pm \sqrt{60}}{-4}[/tex]

Simplify the square root:

[tex]\sqrt{60}=\sqrt{4\cdot 15}=\sqrt{4}\cdot\sqrt{15}=2\sqrt{15}[/tex]

So:

[tex]\displaystyle x=\frac{6\pm 2\sqrt{15}}{-4}[/tex]

Simplify by dividing everything by 2:

[tex]\displaystyle x=\frac{3\pm \sqrt{15}}{-2}[/tex]

Move the negative in the denominator to the numerator. The plus/minus sign will not change.

[tex]\displaystyle x=\frac{-3\pm \sqrt{15}}{2}[/tex]

So, our zeros are:

[tex]\displaystyle x=\frac{-3+ \sqrt{15}}{2}\approx0.4365\text{ or}\\x=\frac{-3-\sqrt{15}}{2}\approx-3.4365[/tex]

Answer:

15km

hope this helps!

Answer:

x = − 5

Step-by-step explanation:

Divide each term by  − 14  and simplify.

Answer: x =5

Step-by-step explanation:

14x/14= 70/14

X = 5

Answer:

The first element of a set which is linked with the element of second set is called domain.

The element of second set is known as range.

Answer:

When functions are first introduced, you will probably have some simplistic "functions" and relations to deal with, usually being just sets of points. These won't be terribly useful or interesting functions and relations, but your text wants you to get the idea of what the domain and range of a function are. Small sets of points are generally the simplest sorts of relations, so your book starts with those.

for example

State the domain and range of the following relation. Is the relation a function? {(2, –3), (4, 6), (3, –1), (6, 6), (2, 3)}

The above list of points, being a relationship between certain x's and certain y's, is a relation. The domain is all the x-values, and the range is all the y-values. To give the domain and the range, I just list the values without duplication:

domain: {2, 3, 4, 6}

range: {–3, –1, 3, 6}

(It is customary to list these values in numerical order, but it is not required. Sets are called "unordered lists", so you can list the numbers in any order you feel like. Just don't duplicate: technically, repetitions are okay in sets, but most instructors would count off for this.)

While the given set does indeed represent a relation (because x's and y's are being related to each other), the set they gave me contains two points with the same x-value: (2, –3) and (2, 3). Since x = 2 gives me two possible destinations (that is, two possible y-values), then this relation is not a function.

Answer:

D = 5

Step-by-step explanation:

1 plus 3 equals 4 plus 5 equals 9

Answer:

For me I think it is observational

Step-by-step explanation:

Observation is the action or process of closing observing or monitoring something or someone while

Experimenting is to perform a scientific procedure, especially in a laboratory to determine something

So from the two definition I think the answer is observation

Answer:

  80 units

Step-by-step explanation:

The sides of a regular octagon are all the same length.

  x +6 = 14 -x

  2x = 8 . . . . . . add x-6

  x = 4

  x+6 = 10 . . . . the length of each of the 8 sides

P = 8s = 8(10) = 80

The perimeter of the octagon is 80 units.

Answer:

0.666

Step-by-step explanation:

Answer: 0.6667

Shouldnt the 6 be divided by 4? If it is its 1.5

Step-by-step explanation:

Answer:

22*3=66

Flase

Step-by-step explanation:

The equation ((22)3) = 25 is false.

Two or more expressions with an Equal sign is called as Equation.

The given equation is  ((22)3) = 25.

We have to check whether the left hand side is equal to right hand side.

If the LHS and RHS are equal then the equation is true.

If not then it is false.

The value in LHS is 22×3 = 66

The value in RHS is 25

66 is not equal to 25

Hence, the equation ((22)3) = 25 is a false statement.

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