At 2 pm on Tuesday, the temperature was -12 degrees. By 6 pm the temperature had dropped to -20 degrees. What was the average change in temperature each hour?

Answers

Answer 1

Answer:

a

Step-by-step explanation:


Related Questions

in Mateo's grade, there are 100 students, Currently, 25% of them are enrolled in health, How
many students are enrolled in health?

Answers

Answer:25

Step-by-step explanation:

Answer:

25!

Step-by-step explanation:

Whenever multiplying by a percentage, you always take the whole number and multiply it by the decimal amount of the number. In this case, 25% is equivalent to 1/4 of an amount, so there would be 25 students enrolled in health. I hope this helped! <3

On a computer screen, Jennifer just created a triangular design of banner with vertices at A (-4,3) B(-1,5) and C (-1,2) she can use the computer software to perform transformations on this design. Which sequence of two transformations could she perform so that the transformed vertices become A (4,-5) , B (7,-7) and c (7,-4)

Answers

Answer:

The answer is below

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are dilation, reflection, translation and rotation.

Given the vertices A (-4,3) B(-1,5) and C (-1,2).

If the vertices is reflected across the y = -1 line, the new location would be at:

A' (-4, -5). B'(-1, -7) and C'(-1, -4)

If it is then translated 8 units to the right i.e. (x, y) ⇒ (x + 8, y), the new location would be at:

A"(4, 5), B"(7, -7) and C"(7, -4)

Can someone pls help me w this paper. PLEASEEEEE

Answers

Answer:

22 for num 5

Step-by-step explanation:

Aiden received a $3.00 tip from a customer who had a $20.00 bill.

Which decimal represents the fraction of the bill Aiden received as a tip?


0.05

0.15

0.25

0.725

Answers

Answer:

Step-by-step explanation:0.15

PLEASE ANSWER CORRECTLY! I WILL MARK BRAINLIEST! I really need an answer!


Dashawn solves the following system of equations using the elimination method.

3x−4y=36
5x+2y=8

What value does he correctly determine for x?

Enter you answer in the box.

x =

Answers

C I think................

A town is storing salt for the winter in a cylindrical building. The building has a radius of 5 ft and is 30 ft tall. The building contains 1,500 ft3 of salt. What is the approximate height that the salt reaches in the building?
The answer are:
A. 0.5 ft
B. 5 ft
C. 19 ft
D. 22 ft

Answers

Answer:

To start off, we know the problem involves something with volume as it is 3D and has a cubic in it.

We know r = 5, h = 30, and v = 1500

The volume for a cylinder in 3d is : V=[tex]\pi[/tex][tex]r^{2}[/tex]h

We're solving for the height when the cylinder has a volume of 1500, therefor, we will solve for height.

Using our volume equation we plug in all values except h because we're solving for it.

1500=[tex]\pi r^{2} h[/tex]

1500=[tex]\pi 5^{2} h[/tex]

1500=25[tex]\pi[/tex](h)

1500/25[tex]\pi[/tex] = h

60/[tex]\pi[/tex] = h

60/[tex]\pi[/tex] = 19.0985

H is 19ft. (C)

Find the length of RS.




a) About 6.3 units

b) 8 units

c) About 2.8 units

d) 40 units

(pls help :,) )​

Answers

Answer:

i is about 23.5 so you could say c)

Step-by-step explanation:

The line segment is RST.

Since RS is 1/3 of the total length, ST is 2/3.

Therefore, 2(RS) is = ST, and RS + ST = RT.

2(3x -20) = 4x - 11

6x - 40 = 4x - 11

2x = 29

x = 14.5

 

3(14.5) - 20 = 23.5

4x - 11 = 47

2(23.5) = 47

The length of RS is 23.5.

The length of ST is 47.

The total length of RT is 70.5.

Cleomenius.

Answer:

Its 6.3 units

Step-by-step explanation:

i took the test

Pls answer if u do know

Answers

I think that it is the 3rd one.

Cassandra works at a bookstore. Yesterday, she sold 18 hardcover books. The rest of the books she sold were paperback books. She sold a total of 41 books. How many paperback books did she sell?

Use the variable p to represent the number of paperback books Cassandra sold yesterday.

Which equation represents this situation and its solution?


A) p + 18 = 41; p = 23

B) 41p = 18; p = 23

C) p + 41 = 18; p = 23

D) 18p = 41; p = 23


PLEASE HELP!!!

Answers

Answer:

A

Step-by-step explanation:

if you take 23 and put it in for p 18+23=41

a. when u and v are nonzero​ vectors, ​span{u​,v​} contains only the line through u and the line through v and the origin.

Answers

Span{u, v} contains the lines through u and v. But Span{u, v} also contains u + v which does not lie on either line.

A vector basic definition What is it?

A quantity or phenomena with independent qualities for both magnitude and direction is called a vector. The term can also refer to a quantity's mathematical or geometrical representation. Velocity, momentum, force, electromagnetic fields, and weight are a few examples of vectors in nature.

False, If the vectors are said to span, then they encompass the area enclosed by au + bv, where a and b are real values. The line between u + v and the origin is a straightforward counterexample. This would be referred to as a plane via u, v, and the origin since it contains all possible combinations of u and v as well as multiples of each.

Learn more about vector

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Which of the following sets of numbers could not represent the three sides of a
triangle?
O {11, 22, 31}
O {8, 11, 16}
O {6,20,27}
O {11, 20, 29}

Answers

Answer:

C

Step-by-step explanation:

The third one down. There are two ways you know this.

1. If you had two boards that where 6 cm and 20 cm and tried to make a triangle with the third side = 27, the two little boards would lie flat on the 27 cm board.

2. The other three answers all make the smaller two sides larger than the third larger side.

C

The correct answer is
The c

what is 273.85 * 7? I really need this

Answers

the answer is 1,916.95

Please please someone help me on this...Given that the function graphed is f(x), what is f(-3)?

Answers

Answer:

f(-3) appears to have a value of 4.

Help?ill give brainliest

Answers

answer: 263.46
1,238.46-975

Answer:

Step-by-step explanation:

   1, 238.46 total money

-      975.00 money spent

-------------------

      263.46

find the conjugate of 4-√15

Answers

Answer:

4 + √15

Step-by-step explanation:

Conjugate means flip the sign. For example, 1 + 1 ⇒ 1 - 1.

A satellite dish is the shape of a paraboloid. The dish is 38 inches wide, and 10 inches deep. How many inches should the receiver be located from the vertex for optimal reception? (round to the nearest thousandth)

Answers

Answer:

9 in approx

Step-by-step explanation:

Step one:

given data

the shape of the satellite dish takes the form of a paraboloid.

the diameter of the dish is 38in wide

and 10 inches deep.

step two:

The expression for the paraboloid is

[tex]4ay=x^2[/tex]

where y is the vertical axis of the  paraboloid

a is vertex to focus.

and x is the radius of the dish

x= 38/2= 19in

substituting we have

[tex]4a10 =19^2\\\\40a=361 \\\\[/tex]

divide both sides by 40

[tex]a=361/40\\\\a=9.025[/tex]

vertex to focus= 9 in approx

Answer:Step-by-step explanation:Answer:9 in approxStep-by-step explanation:Step one:given datathe shape of the satellite dish takes the form of a paraboloid.the diameter of the dish is 38in wideand 10 inches deep.step two:The expression for the paraboloid iswhere y is the vertical axis of the  paraboloida is vertex to focus.and x is the radius of the dishx= 38/2= 19insubstituting we havedivide both sides by 40vertex to focus= 9 in approx

if 2+2 is 4 what is 3-c+46yw9

Answers

Answer:

49392=2×2×2×2×3×3×7×7×7

=2

4

×3

2

×7

3

∴49392=2

4

×3

2

×7

3

Given, 49392=a

4

×b

2

×c

3

comparing both, we get,

a=2,b=3,c=7

PLEASE HELP NOBODY WILL HELP ME I WILL GIVE BRAINLIEST
Michael sold 220 candy bars to support his school band. Payday candy bars sold for $2 each and Baby Ruth bars sold for $3 each. Michael sold $600 worth of candy bars.

1. Set up the two equations that describe this situation.
2. How many Baby Ruth bars did Michael sell?

Answers

Answer:

See below

Step-by-step explanation:

Let the number of Payday be p and Baby Ruth be b

Then sub of the candy bars:

p + b = 220Payday candy bars worth ⇒ $2pBaby Ruth candy bars worth ⇒ $3bTotal ⇒ $600

1. Required equations:

p + b = 2202p + 3b = 600

2. Solving by substitution:

p = 220 - b, consider it in the second equation

2(220 - b) + 3b = 600660 - 2b + 3b = 600660 + b = 600b = 660 - 600b = 60

60 Baby Ruth candy bars sold

Easy math problems!!!!

Answers

Omaga what is that
Att: Cardi b okrrrrrr

Answer:

845

Step-by-step explanation:

ehjfuilgi

Yohanna is conditioning all summer to prepare for her high school's varsity soccer team tryouts. She is incorporating walking planks into her daily workout plan. Every day, she will complete six more walking planks than the day before. If she starts with two walking planks on the first day, how many walking planks will Yohanna do on the 15th day?

Answers

Answer: 86

Step-by-step explanation:

Since we want to know the number of walking plans that she will do on the 15th day, we have to use 14 days in our calculations as the first day isn't included.

Therefore, the equation to solve this will be:

= 2 + 6d

where,

d = number of days = 14 days

= 2 + 6d

= 2 + 6(14)

= 2 + 84

= 86

Whoever helps gets BRAINLIEST

Answers

Answer:

6 is the correct answer.

The correct answer should be 6

Help me please.......

Answers

Find the volum of the and minus pi x2.5 squared x4
Volume of prism= length * width * height
= 10*4*7
= 320cm^3

Volume of cylinder= pi*r^2 * height
Therefore
2.5^2 *pi *4
Hence area is = 78.54 (to 2 decimal places)

Subtract area of cylinder from area or prism
You get= 241.46cm^3

(h º g º f)(x)?

2x3 + 1
8x3 + 9x + 1
8x3 + 12x2 + 6x + 1
8x3 + 24x2 + 24x + 8

Answers

Answer:

First one is A. [tex]2x^{3} + 1[/tex]

Second one is D. [tex]8x^{3} + 24x^{2} +24x + 8[/tex]

Step-by-step explanation:

Edge 2020

Answer:

d on edge

Step-by-step explanation:

Can someone help me with this.

Answers

The composite functions are listed below:

g ° f(3) = 29 g ° f(x + 1) = 2 · x² - 1 h ° g (- 3 · x) = - 36 · x - 36 f ° g (- 2 - t) = 73 + 72 · t + 16 · t² f ° g (x²) = 3 · x² + 17

How to evaluate composite functions

In this problem we find five cases of composite functions, each of which has to be evaluated. A composition between the two functions f and g is defined below:

f ° g(x) = f ( g(x) )

Now we proceed to evaluate each of the five cases by using algebra properties and the definition of the composition of functions:

Case 1

g ° f(3) = g( f(3) )

g ° f(3) = 4 · (2 · 3 + 2) - 3

g ° f(3) = 4 · 8 - 3

g ° f(3) = 29

Case 2

g ° f(x + 1) = g( f(x + 1) )

g ° f(x + 1) = 2 · [(x + 1)² - 2 · (x + 1)] + 1

g ° f(x + 1) = 2 · (x² + 2 · x + 1 - 2 · x - 2) + 1

g ° f(x + 1) = 2 · (x² - 1) + 1

g ° f(x + 1) = 2 · x² - 1

Case 3

h ° g (- 3 · x) = h( g (- 3 · x) )

h ° g (- 3 · x) = 3 · [4 · (- 3 · x) - 3]

h ° g (- 3 · x) = 3 · (- 12 · x - 12)

h ° g (- 3 · x) = - 36 · x - 36

Case 4

f ° g (- 2 - t) = f( g (- 2 - t))

f ° g (- 2 - t) = [4 · (- 2 - t) - 2]² + 1 + 2 · [4 · (- 2 - t) - 2]

f ° g (- 2 - t) = (- 8 - 4 · t - 2)² + 1 + 2 · (- 8 - 4 · t - 2)

f ° g (- 2 - t) = (- 10 - 4 · t)² + 1 + 2 · (- 10 - 4 · t)

f ° g (- 2 - t) = 100 + 80 · t + 16 · t² + 1 - 20 - 8 · t

f ° g (- 2 - t) = 73 + 72 · t + 16 · t²

Case 5

f ° g (x²) = f( g(x) )

f ° g (x²) = 3 · (x² + 4) + 5

f ° g (x²) = 3 · x² + 12 + 5

f ° g (x²) = 3 · x² + 17

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I need help please! I’ll mark brainlist!!

Answers

Answer:

6 + 8 + 10 = 24

Step-by-step explanation:

Take 6 and 15 and compare those two, you will have to multiply 6 by 2.5 to get to 15 and that's the dilation, then dive 20 and 25 by 2.5, you'll get 8 and 10.

6 + 8 + 10 =24

State the angle bisector theorem.

Answers

The angle bisector theorem states that an angle bisector divides the opposite side of a triangle into two segments that are proportional to the triangle's other two sides.

Can someone please help me with proofs!

Answers

2) AE is congruent to EC, BE is congruent to ED (a bisector splits a segment into two congruent parts)

3) Angle AEB is congruent to angle DEC (vertical angles are congruent)

4) Triangle ABE is congruent to triangle CDE (SAS)

I need this ASAP!!


calculate the rate of change on this graph

Answers

Answer: The slope is 2

Step-by-step explanation: For questions like these, find 2 points on the graph that are on whole numbers, for example (10,60) and (20,80). Then use the formula y2-y1/x2-x1 to solve for the slope, which would be the same thing as rate of change. 80-60/20-10 which equals 2. The slope would be 2.

Indicate the answer choice that best completes the statement or answers the
question.
Which point is closest to 29 on the number line?
А
B
с
D
0
1
2 3 4 5 6 7 8
9 10
Oa. A
Oь. С
Oc.D
Od. B

Answers

Answer:

option d

Step-by-step explanation:

root of 29 = 5.39 (rounded)

in the line, point B is closest to that value.

A truck can be rented from company a for $120 a day plus $.40 per mile. company b charges $50 a day plus $.90 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same

Answers

The number of miles in a day at which the rental costs for company a and company b are the same are 350 miles.

Let the number of miles travelled be 'x';

According to question; for rental costs to be same;

120 + 0.40x = 50 + 0.90x;

0.50x = 70;

x = 350;

Of the one hundred biggest cities national, San Francisco's hire discounts are the steepest, according to records from domestic-seek internet site rental listing. The metropolis's median rents are down roughly 10% from March 2020, stated senior economist Christopher

Rents within the San Francisco metro area, which incorporates the East Bay and the Peninsula, have been up just over 12% in April compared to 365 days ago, and were at the upward thrust for the ultimate four months directly, consistent with the ApartmentList file.

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