Which graph shows a car traveling at 50 miles per hour?

Answer:

  C.  {-1, 5, 8}

Step-by-step explanation:

Use each of the domain values in the function to see what the corresponding range value is.

  f(-1) = 5 -3(-1) = 8

  f(0) = 5 -3(0) = 5

  f(2) = 5 -3(2) = -1

The range is the set of numbers {-1, 5, 8}.

_____

Additional comment

The values in a set are generally listed lowest to highest. The coefficient of x in the equation for f(x) is negative, meaning the lowest range value will correspond to the highest domain value. If you start by finding f(2) = -1, you immediately eliminate all answer choices except B and C.

Those choices differ only in the middle value, so you can tell which is correct by evaluating f(x) for the middle domain value: f(0) = 5. Only one answer choice has both -1 and 5 in the set.

(There are two answers here: how you work the problem, and how you game a multiple choice question.)

Answer:

7

Step-by-step explanation:

You get the value of c and d as follow

c=4

d=28

now,

d/c=28/4=7

so,

the value of d/c here is 7

Answer:

the answer is 19.2 I think

Rearrange the equation as

cos(x) - √(1 - 3 cos²x) = 0

cos(x) = √(1 - 3 cos²x)

Note that both sides have to be positive, since the square root function is non-negative. If we end up with any solutions that make cos(x) < 0, we must throw them out.

Take the square of both sides.

(cos(x))² = (√(1 - 3 cos²(x))²

cos²(x) = 1 - 3 cos²(x)

4 cos²(x) = 1

cos²(x) = 1/4

cos(x) = ± √(1/4)

cos(x) = ± 1/2

We throw out the negative case and we're left with

cos(x) = 1/2

This has general solution

x = arccos(1/2) + 360° n   or   x = -arccos(1/2) + 360° n

(where n is any integer)

x = 60° + 360° n   or   x = -60° + 360° n

Now just pick out the solutions that fall in the interval 0° ≤ x < 360°.

• From the first solution set, we have x = 60° when n = 0.

• From the second set, we have x = 300° when n = 1.

So the answer is D.

Answer:

(16/3,-4)

Step-by-step explanation:

Answer:

Step-by-step explanation:

You need to solve the system of linear equations to find the intersection:

Substitute and solve for x:

Find y:

Answer:

144 ft2 is the answer

Step-by-step explanation:

took the test btw so I know it

Answer:

144 ft2 is the answer

Step-by-step explanation:

test

Answer:

9,900

Step-by-step explanation:

I=PRT

I=12,000*2.75*30=9,900

                100

The B option is correct.

Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.

Given

A number is -906,060.

The equivalent number of the given number.

We know the number is -906,060.

It can be represented as [tex]\rm -906,060 = -9.0606 \ times\ 10^5[/tex].

Thus, the B option is correct.

More about the exponent link is given below.

https://brainly.com/question/5497425

Answer:

9

Step-by-step explanation:

First convert mixed fraction to improper fraction. Then use KCF method

Keep the first fraction.

Change division to multiplication

Flip the second fraction.

[tex]7\dfrac{1}{2}=\dfrac{15}{2}[/tex]

15/2 ÷ 5/6 =[tex]\dfrac{15}{2}*\dfrac{6}{5}= 3*3 = 9[/tex]

Answer:

x = 3

Step-by-step explanation:

(66) + (8x) = 90

x = 3

hope this helps!!!

Answer:

Option A is the correct answer

Step-by-step explanation:

A. The difference of twice the cube of a number and 11

Answer:

20x+40

Step-by-step explanation:

x is the no of bracelets/per day

constant expense for a day = 10$

rent charge for 4 days = 40$

expense for beads/hardware for 4 days = 5X*4= 20x

exp = 20x+40

Answer: [tex]3x-4[/tex]

Step-by-step explanation:

Difference = Huskies - Bobcats

Hence,

[tex](5x-3)-(2x-7)\\=5x-3-2x+7\\=3x+4[/tex]

[tex]m1 = 79 + 58[/tex]

[tex]m1 = 137[/tex]

Answer:

b

Step-by-step explanation:

just move the shape with cordinantes of b

The rule that maps figure 1 onto figure 2 is B. (x,y)→(x-5, y+11)

Function is a type of relation, or rule, that maps one input to specific single output.

In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable).

If the original function is y = f(x), assuming horizontal axis is input axis and vertical is for outputs, therefore,

Horizontal shift (also called phase shift):

Left shift by c units:

y=f(x+c) (same output, but c units earlier)

Right shift by c units:

y=f(x-c)(same output, but c units late)

The correct option is B.

(x,y)→(x-5, y+11)

Learn more about function here:

https://brainly.com/question/2253924

#SPJ2

Answer: The answer is c

Step-by-step explanation:

cause common sense

Answer:

x = 3.2

Explanation:

when y = 1

1 = x²-2x-3

x²-2x-3-1 = 0

x²-2x-4 = 0

                                      [tex]x = \frac{ 2 \pm \sqrt{(-2)^2 - 4(1)(-4)}}{2*1}[/tex]

                                               [tex]x = 1 + \sqrt{5}[/tex]

                                                 x = 3.236

                                                 x = 3.24 in 2 decimal places

                                                 x = 3.2  in nearest tenth

Answer:

7/32

Step-by-step explanation:

The reciprocal of a value is simply the inverse of it. That is, if a value n is any value in the number spectrum, the reciprocal would be 1/n.

In this case, 4 4/7 can be written as 32/7 as an improper fraction. Now the reciprocal of that would be to flip the numerators and the denominators. (1 / 32/7 is basically 1 * 7/32).

The reciprocal of 4 4/7 is 7/32.

Answer:

10

Step-by-step explanation:

Set up an inequality

4x + 7.50 [tex]\leq[/tex] 50

4x  [tex]\leq[/tex] 42.50

x  [tex]\leq[/tex]  10.625

So the answer is 10 because you can't buy .625 of a book

Answer:

10 books

Step-by-step explanation:

50-7.50=42.5

42.5÷4=10.625

but that means it is only 10 books as there is no 10 and a half book

:)

The equation to show the depreciation at the end of x years is

[tex]f(x) = 1500 - 200x[/tex]

Data;

This is an equation written to represent a word problem into mathematical statement and this is easier to solve.

To write a linear depreciation model for this machine would be

For number of years, the cost of the machine would become

[tex]1500 - 200x[/tex]

This is properly written as

[tex]f(x) = 1500 - 200x[/tex]

where x represents the number of years.

For example, after 5 years, the value of the machine would become

[tex]f(x) = 1500 - 200x\\f(5) = 1500 - 200(5)\\f(5) = 1500 - 1000\\f(5) = 500[/tex]

The value of the machine would be $500 at the end of the fifth year.

From the above, the equation to show the depreciation at the end of x years is f(x) = 1500 - 200x

Learn more on linear equations here;

https://brainly.com/question/4074386

Answer:

(-1,-2) OR x = -1 and y = -2

Step-by-step explanation:

y = 3x + 1

y = -x -3

so you would first multiply everything on y = -x -3 by 3 and get 3y = -3x -9

so then you would add 3y = -3x -9 to y = 3x + 1 ( to eliminate the x )which would be 4y = -8 then divide by 4 and get  y = -2

then you plug in y = -2 into any one of the equations but to make it easier i am going to plug it into y = -x -3 so now it would be -2 = -x - 3 then, add 2 to both sides which would be 0 = -x -1 then add 1 to both side 1 = -x then multiply both sides by -1 and get x = -1

SO your answer would be (-1,-2) OR x = -1 and y = -2 ( both of them are correct but it depends on what the teacher taught you)

Answer:

If it wants to know the total on day 3, then the answer is 3/12, or 1/4 (fully simplified).

Step-by-step explanation:

1/6 + 7/12 = 3/4

This means that you would need 1/4 more inches of snow. 3/12 is the answer before simplification, and 1/4 is the fully simplified answer.

Answer:

First of all, let us have a look at the formula for Total Surface Area of triangular prism:

TSA = B + p\times hTSA=B+p×h

Where B is the area of base

p is the perimeter of base and

h is the height of prism.

here base is a right angled triangle (because 3, 4, 5 is a triplet) Base and Height will be 3 , 4 cm or 4, 3 cm and 5 will be hypotenuse.

So formula for B:

\begin{gathered}B = \dfrac{1}{2}\times Base \times Height\\B = \dfrac{1}{2}\times 3\times 4 = 6 cm^2\end{gathered}

B=

2

1

×Base×Height

B=

2

1

×3×4=6cm

2

So, TSA = 6 + (3+4+5) \times× 10 = 6 + 120 = 126 cm^2cm

2

So, total surface area of given prism is 126cm^2cm

2

.

Answer:

ok so if we made a venn diagram it would look like this

math     neither      science

10             |      10    |   15

the ration math to science liking kids is

10:15 or 2:3

Hope This Helps!!!

The ratio of the students who like Maths to the students who like Science is 5:6.

A Venn diagram is a diagram that helps us visualize the logical relationship between sets and their elements and helps us solve examples based on these sets. A Venn diagram typically uses intersecting and non-intersecting circles (although other closed figures like squares may be used) to denote the relationship between sets.

(i) Given that, n(U)=50, n(S)=15, n(M)=10 and n(S∪M)=10

Let us take the students who like both subjects n(S∩M)=x

Now, 50=10+x+15+10

50=x+35

x=15

(ii) The number of students who like maths

=n(M)+n(S∩M)

= 10+15=25

The number of students who like Science

= n(S)+n(S∩M)

= 15+15=30

So, ratio is 25:30

= 5:6

Therefore, the ratio of the students who like Maths to the students who like Science is 5:6.

To learn more about the Venn diagram visit:

https://brainly.com/question/28060706.

#SPJ2

Answer:

Evaluate the following expressions for x = 2. –9. 2(4 – x) –9. 2(4 – (2)) –9. 2(2)

= -18.4

Evaluate the following expression for x = 2. -36. 8 9. 2x.

= -18.4

Answer:

Both are -18.4

Step-by-step explanation:

Answer:

3$

Step-by-step explanation:

If the chicken was 4 times the amount of potatoes you would have to divide 12 by 4 to get you answer which would be 3$

12/4 = 3

potato's = 3$

to check you answer you would do 3 times 4 and if it gives you the cost of chicken (12) then it is correct.

Answer: $3

Step-by-step explanation:

If the chicken is 4 times as much, you can divide the cost of the chicken, which is $12. So, 12 divided by 4 is 3. The potatoes cost 3 dollars.

Answer:

x > 10

Step-by-step explanation:

Answer:

C. 46°

Step-by-step explanation:

The supplement of an angle is the other angle that makes the two angles add up to 180°. In other words, supplementary angles are angles that add up to 180°.

To find the measure of its supplement, we subtract 134 from 180, and then we get the angle measure.

Therefore, the answer is C. 46°.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer:

cannot be determined

Step-by-step explanation:

you know they are similar triangles because their angles are congruent, but you cannot determine if they are the same because you are not given that any of their sides are congruent