20 POINTS!!!!

What is the area of the following trapezoid in square feet?
135 ft^2
165 ft^2
82.5 ft^2
64.9 ft^2

Answer:

area = base × height

substitute the value for the area and base and solve.

height = area ÷ base

Answer:

B      

y=7x +100

Step-by-step explanation:

$100 for one room

1 or more kids

$7 per kid

so, the answer is y= 7x + 100

Answer: About 2.875 times more than a hummingbird

Step-by-step explanation: The way you can solve this problem is just by dividing 82,800 by 28,800. If you want to check your work multiply 28,800 and 2.875.

A bee flaps its wings approximately 3 times faster than a hummingbird.

Bee: 82,800 times/hour ≈ 8.3 × 10^4 times/hour

Hummingbird: 28,800 times/hour ≈ 2.9 × 10^4 times/hour

Now, let's compare the two estimates:

8.3 × 10^4 (bee) is approximately 3 times faster than 2.9 × 10^4 (hummingbird).

So, a bee flaps its wings about 3 times faster than a hummingbird.

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Answer:

A. (x + 3)² - 2

B. (-3,-2); min

C. x = -3

Step-by-step explanation:

x² + 6x + 7

x² + 2(x)(3) + 3² - 3² + 7

x² + 2(x)(3) + 3² - 9 + 7

(x + 3)² - 2

Vertex: (-3 , -2)

It's a concave up, so minimum

Line of symmetry is x = h

x = -3

Answer:

35

Step-by-step explanation:

a negative and a negative equals a positive

Look at the attached picture ⤴

Hope it will help u....:)

Answer:

(-5, -2)

Step-by-step explanation:

3x+4y=-23

x=3y+1

since we have what x is, we need to subsitute

3( 3y+1) + 4y= -23

no we need to multiply the number inside the parenthesis by 3

9y + 3 + 4y= -23

combine like terms ( add the numbers or variables that look alike)

9y+4y is 13y

13y+3= -23

since we need to get the y alone we need to subtract 3 on both sides since its the opposite of adding

13y+3-3=-23-3

13y= -26

now we divide 13 on both sides to get Y alone

13y/13= -26/13

y= -2

now since we have y we need to substitute it to find x

x= 3y+1

x= 3( -2) +1

now we mutliply 3 with -2

x= -6 +1

x=-5

those are ur answers

y= -2

x= -5

hope this helped:D

Answer:

x = -5

y = -2

Step-by-step explanation:

Upon calculating the volume of the given cylinder and comparing it with each option, it is determined that none of the provided cylinders have the same volume as the cylinder with a height of 32 meters and a diameter of 20 meters.

The question is asking which cylinders have the same volume as a cylinder with a height of 32 meters and a diameter of 20 meters. To find this out, we first calculate the volume of the given cylinder. The formula for the volume of a cylinder is[tex]V = \(\pi r^2h\)[/tex], where V is the volume, [tex]\(r\) i[/tex]s the radius of the base, and h is the height of the cylinder. In this case, the radius (half of the diameter) is 10 meters, so the volume is:

[tex]V = \(\pi (10)^2 \times 32\) = 320\(\pi\) cubic meters.[/tex]

Now, let's check each option:

Therefore, none of the provided options have the same volume as the given cylinder.

The cylinders with heights and diameters of 16 meters and 40 meters, and 128 meters and 10 meters, respectively, have the same volume as the given cylinder.

To find cylinders with the same volume as the given cylinder (height = 32m, diameter = 20m), we calculate its volume and compare it with the volumes of the listed cylinders. Cylinders with heights and diameters of 16 meters and 40 meters, and 128 meters and 10 meters, have the same volume as the given cylinder.

The question involves finding which cylinders have the same volume as a cylinder with a height of 32 meters and a diameter of 20 meters. To solve this, we first calculate the volume of the given cylinder using the formula for the volume of a cylinder, V = πr²h, where r is the radius (half of the diameter) and h is the height.

The volume of the given cylinder is V = π(10²)(32) = 320π cubic meters. We then apply the same formula to each of the listed cylinders, converting dimensions to the same units where necessary, to identify which ones have the same volume.

Therefore, the cylinders with heights and diameters of 16 meters and 40 meters, and 128 meters and 10 meters, respectively, have the same volume as the given cylinder.

A triangle is a three-edged polygon with three vertices. The correct option is A.

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry.

Since the triangle is a scalene triangle, all the sides of the given polynomial can not be equal. Therefore, it can not be a rhombus or a square.

Also, it is given that the triangle is an obtuse triangle therefore, there will be no angle with a 90° measurement. Thus, it can not be a rectangle.

Hence, the correct option is A.

Learn more about Triangle:

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Answer: (A) Kurt's expression; x = 4.6k

(B) Jared's expression; y = 4.4j

(C) Team's score; z = 4.6k + 4.4j

(D) Team score = 40.6 m

Step-by-step explanation: In order to calculate the average of a given set of data, the formula is to sum up the given data or values and then divide the sum total by the number of values observed. That means, if for instance a student jumps 10 times, his average would be given as the sum of all 10 distances jumped divided by 10. If the sum derived equals 50, then the student's average is 50 divided by 10. In other words;

Average = (∑x)/x

When we cross multiply, this can also result in

Average*x = ∑x

The question has given us the average for both students, hence we can derive their average as described above. If Kurt jumps k number of times, then his average jump will be;

4.6 = (∑k)/k

And remembering that Average*x is the same value as ∑x, we substitute for the value given in the question, which is k. Hence,

4.6*k = ∑k

Note that the total score for each boy can now be determined as the average calculated times the total number of jumps, that is, working backwards. Hence, Kurt's total score is 4.6k.

(a) If we represent Kurt's score as x, then we can express his score as

x = 4.6k ------(1)

(b) If we represent Jared's score as y, then we can express his score as

y = 4.4j ------(2)

(c) The team score is the sum of the scores of both boys. Hence, if the boys scores have been written in terms of x and y then the team score shall be represented by z. Therefore we now have;

z = x + y

z = 4.6k + 4.4j

(d) If Kurt jumps 5 times then his total score will be

x = 4.6k

x = 4.6(5)

x = 23 m

If Jared jumps 4 times then his total score will be

y = 4.4j

y = 4.4(4)

y = 17.6 m

The team score therefore is determined as

z = x + y

z = 23 + 17.6

z = 40.6

The team score is a total of 40.6 m

Answer:

you need to the prime number to get the sum for the distance between 1 and v.

Step-by-step explanation:

Natural numbers are what you use when you are counting one to one objects. You may be counting pennies or buttons or cookies.

If you want to find the numbers between the two you will need an expression to consolidate your question as an example 3r, 6y, 2by in order to find the Natural number between these three questions you need to use equations such as 3r*2by+6y therefore would be 6br + 2y.

A Prime number is a natural number of a particular kind . Any natural number is equal to 1 times itself.

Answer: 4(5) 20 5(4)

Step-by-step explanation: PERIOD

Answer:

B: 4(5)

C: 20

D: 5(4)

   Mark brainliest pls

Step-by-step explanation:

I got it correct on edge

Answer:

C) 50x

D) x(75 - 25)

Explanation:

Use distribution to simplify:

x · 75 = 75x

x . 25 = 25x

75x - 25x

75x - 25x = 50x

Answer:

C and D

Step-by-step explanation:

75x - 25x

75 - 25 = 50

Write in terms of x

50x

Find the options that match this answer

a: 50 (not always equal to 50x)

b: 100 (not always equal to 50x)

c: 50x (always equal to 50x)

d: x ( 75 - 25 ) = x ( 50) = 50x (always equal to 50x)

C and D are equivalent to the answer, 50x

Hope this helps :)

Answer:

2.4

Step-by-step explanation:

Answer:

To convert to a decimal, divide numerator by denominator.

To convert the decimal to a percentage multiply by  

100

%

Explanation:

5

12

=

0.416666

...

...

.

0.41666

...

.

.

×

100

%

=

41.66666

%

...

.

.

Rounding off to nearest percent gives

42

%

Step-by-step explanation:

Answer:x= 65 acute triangle

Step-by-step explanation:

Answer:

the y- intercept is moved 13 spaces down. this also changes your x-intercept.

Step-by-step explanation:

Answer:

it is moved 13 spaces lower

Answer:

x= 3, y= -1

Step-by-step explanation:

Let's solve your system by substitution.

2x−5y=11 and −2x+3y=−9

Solve x in 2x-5y=11

2x-5y=11 (add 5y to both sides)

2x = 5y + 11 (divide 2 by both sides)

x=5/2y + 11/2

substitute 5/2y+11/2 for x in -2x+3y=-9

-2x+3y=9

-2 (5/2y+11/2)+3y=-9

-2y-11=-9 (simplify both sides)

-2y-11=-9 (add 11 to both sides)

-2y=2 (divide both sides by -2)

y=-1

substitute your y (-1) in x = 5/2y + 11/2

x = 5/2y + 11/2

x=5/2(-1)+11/2

x=3

therefore, y= -1 and x = 3

Answer:

Touches only.

Step-by-step explanation:

It only touches the curve at one point. The line is a tangent to the curve and does not cross it.

If you have a ball resting on a table the table is a tangent to the curve of the ball.

Answer:

A

Step-by-step explanation:

wednesday thursday and friday amount to 60%

Answer:

16

Step-by-step explanation:

square root of 16 is 4, and 4^2 = 16

Answer:

16

Step-by-step explanation:

The square cancels out the square root.

Answer:

Chicago after 8 hrs it dropped to 8 degrees and at pittsburgh after 8hrs passed it reached to 8degrees outside

so after 8hrs the cities reached the same temperature which is 8degrees

Step-by-step explanation:

10-1=9 then 9-1=8

1= each degree that dropped every 4 hours

Answer:

Step-by-step explanation:

Answer:

A B D F

Step-by-step explanation:

just did it

Answer:

326.60 in²

Step-by-step explanation:

[tex]2 \times 3.14 \times 4(4 + 9) \\ = 2 \times 3.14 \times 4(13) \\ = 2 \times 3.14 \times 52 \\ = 326.56 \: {in}^{2} \\ = 326.60 \: {in}^{2} [/tex]

Answer: Is true sometimes.

Step-by-step explanation:

I guess that here we have two matrices, A and B, that are nxn.

We can see that if those matrices can conmutate, then we can try it with some simple matrices.

[tex]A = \left[\begin{array}{ccc}1&0\\0&-1\end{array}\right] . B = \left[\begin{array}{ccc}2&0\\1&1\end{array}\right][/tex]

Here, we would have that:

[tex]AB = \left[\begin{array}{ccc}2&0\\-1&-1\end{array}\right][/tex]

[tex]BA = \left[\begin{array}{ccc}2&0\\1&-1\end{array}\right][/tex]

You can see that AB and BA are different, then the statement is not always true.

But it is true sometimes, if A or B are the identiti, then I*A = A*I, in this case would be true.

It is also true if A and B are diagonal matrices, let's prove it:

[tex]A = \left[\begin{array}{ccc}a&0\\0&b\end{array}\right] , B = \left[\begin{array}{ccc}c&0\\0&d\end{array}\right][/tex]

[tex]AB = \left[\begin{array}{ccc}ac&0\\0&bd\end{array}\right] = BA[/tex]

Answer:

D

Step-by-step explanation:

Answer:

3.  1/2                4.    13/20

Step-by-step explanation:

Those are the only one I know, sorry :/

Answer:

$85

Step-by-step explanation:

Earning:

Spending:

Amount available for saving:

Answer: $85

Step-by-step explanation: Took the test and got it correct