Cos(5π/3)= A. -√2/2 B. √3/2 C. √2/2 D. 1/2

10. 一、52 Please help!

Crazy boy [7]

Answer:

31

Step-by-step explanation:

There is the possibility that many numbers could be put in here. The simplest one is the average of 10 and 52

10 + 52 = 62

62 / 2 = 31

So the series becomes 10 31 52.

Add 21 to get the next term. So 52 + 21 = 73.

8 0

3 years ago

Consider the equation 2y – 4x = 12. Which equation, when graphed with the given equation, will form a system with one solution?

lbvjy [14]

Answer:

–y – 2x = 6 . . . choice 1

Step-by-step explanation:

Consider the system obtained using the other answer choices:

-y +2x = 12 . . . choice 2

The result of multiplying the given equation by -1/2 is ...

-y +2x = -6 . . . . a line parallel to that of answer choice 2. The system would have no solution

__

y = 2x +6 . . . choice 3

Solve the given equation for y by adding 4x and dividing by 2. That will give ...

y = 2x +6 . . . . a line identical to that of answer choice 3. The system would have an infinite number of solutions.

__

y = 2x +12 . . . choice 4

As we found in the previous discussion, the given line can be written as ...

y = 2x + 6 . . . . a line parallel to that of answer choice 4. The system would have no solution.

_____

The attached graph shows the given line and that of answer choice 1.

5 0

3 years ago

Read 2 more answers

In Exercises 29 and 30, describe the possible echelon forms of the standard matrix for a linear transformation T . Use the notat

TiliK225 [7]

Answer:

note:

solution is attached in word form due to error in mathematical equation. furthermore i also attach Screenshot of solution in word due to different version of MS Office please find the attachment

Download docx

4 0

3 years ago

Dave ran 10km in 40 minutes. He rested for 5 minutes then ran a further 8 km in 35 minutes.Work out his average speed for the wh

Nadya [2.5K]

Answer:

27/2 km/hr

Step-by-step explanation:

5 0

3 years ago

Yvonne's car with an 11-gallon gas tank gets an average of 32 miles per gallon. She travels 12 hours at an average speed of 64 m

n200080 [17]

Answer:

$78

Step-by-step explanation:

Here we have to find total distance first then find amount of gasoline used based on distance traveled by car in one gallon.

_____________________________________________

Given

time = 12 hours

speed = 64 miles per hour

we know distance = speed * time

distance = 12*64 = 768 miles.

Thus, car ran 768 miles.

given that car gets an average of 32 miles per gallon.

It means in one gallon gasoline car travels 32 miles.

let the gallons used be x

in 1 gallon gasoline car travels 32 miles.

in 1*x gallon gasoline car travels 32*x miles = 32x

Thus, 32x should be equal to 768 miles as car traveled that much only

32x = 768 miles

x = 768/32 = 24

Thus, gallons of gasoline used is 24.

Cost of 1 gallon gasoline = $3.25

since, gallons found is 24, we multiply lHS and RHS by 24

Cost of 1 *24= 24 gallon gasoline = $3.25*24 = $78

Thus,

cost of 24 gallon is $78 which will be the gasoline cost for the trip.

6 0

3 years ago