Does the expression 30 + (-23) represent the temperature at night?

Answers

Answer 1
It could, but it would be very cold.
Answer 2
that seems like its very cold.

Related Questions

please help thank u!!

Answers

Answer:

[tex]2x^3-3x+4+\frac{5}{3x-5}[/tex]

Step-by-step explanation:

Use polynomial; long division to divide the two polynomials. Remember to put each polynomial in standard form, or rather organize each polynomial by their degree (exponent). The polynomial with the highest exponent will go first, then each with its varying exponent will suceed.

          _____[tex]\underline{2x^2\ \ -\ \ 3x\ \ +4}[/tex]

[tex]3x-5[/tex] | [tex]6x^3 - 19x^2+27x-15[/tex]

          [tex]\underline{-6x^3+10x^2}[/tex]

                    [tex]-9x^2+27x[/tex]

                      [tex]\underline{+9x^2-15x}[/tex]

                               [tex]12x-15[/tex]

                               [tex]\underline{-12x+20}[/tex]

                                         [tex]5[/tex]

                                 

The answer is 5 I hope that helps

find the exact coordinates of X on segment JK that is 1/3 the distance from j to k. J (-1,4)​ K(5,-3)

Answers

Answer:

ee

Step-by-step explanation:

e

... fhhhriirnfiijrifjbfufjfbfijffjdudj

HELP ME PLEASE im gonna fail lol

Answers

7/20 = 0.35
-23/20 = 0.15
1/18 = 0.0556
-60/22 =
0.7273
(Are those negative signs for the 2 & 4 ones if not then the answers are 2.7273 & 1.15)
Haha lol I am on the same thing

triangle ABC △ABC triangle, A, B, C is rotated -120° about point P create ΔA' B' C'

Answers

Answer:

40°

Step-by-step explanation:

Since triangle ABC is identical to triangle A'B'C', it has the same measures of respective sides and angles, and ang A is therefore equal to angle A'.

After rotational transformation, the measure of angle ∠A' = 40°.

What is a rotation transformation?

A rotation is a transformation that turns the figure in either a clockwise or counterclockwise direction on the coordinate plane. In both transformations the size and shape of the figure stays exactly the same.

For the given situation,

The diagram shows the two triangles.

Triangle ABC is the original triangle and A'B'C' is the triangle obtained after the rotation of -120°.

From the definition, in rotational transformation the size and shape of the figure stays exactly the same. Then the angle measures are also remains the same.

Thus the measure of angle A' is [tex]\angle A' = \angle A = 40[/tex]

Hence we can conclude that after rotational transformation, the measure of angle ∠A' = 40°.

Learn more about rotation transformation here

https://brainly.com/question/12865301

#SPJ2

Find two consecutive perfect squares that 3 is between.

Answers

Answer:

1^2 and 2^2

Step-by-step explanation:

1^2 is 1

2^2 is 4

3 is a number in between

Answer:

1 and 4 or [tex]1^{2} and 2^{2}[/tex]

Step-by-step explanation:

[tex]1^{2}[/tex] = 1

[tex]2^{2}[/tex] = 4

The number that comes in between is 1 and 4 is 3.

I WILL MARK AS BRAINLIEST! Solve For X and Y

Answers

Answer:

brainliest is appreciated

Ydfnrnens. Snenskzksnsk29

Calculate the Mean: 24, 27, 31, 21, 27​

Answers

24+27+31+21+27 divided by 5 = 26. Your final answer is 26 :)

Answer: 26

Step-by-step explanation:

mean is the same thing as finding the average

you add up all the numbers then divide by the amount of numbers there are

24+27+31+21+27=130

130\5=26

Rafael wants to wallpaper the back wall of his bedroom. The wall is in the shape of a rectangle. Its length is 13 feet and its width is 9 feet. Suppose wallpaper costs $7 for each square foot. How much will wallpaper cost for the wall?

Answers

Answer:

$819

Step-by-step explanation:

First we find the area of the wall so we multiply 13ft x 9ft.

13ft x 9ft = 117ft

We know each square foot is equal to $7. So now we multiply 117 x 7 to get the total cost.

117 x 7 = $819

819$ because you multiply 13 by 9 which is 117 multiply that by 7 and banm

Subtract -1 3/5 ( -2 5/8 ) enter your answer as a simplest fraction by filling in the boxes

Answers

Answer:

21/5

Step-by-step explanation:

Answer:

1 [tex]\frac{1}{40\\}[/tex]

Step-by-step explanation:

i hope this helps :0

Please help me! This is very important! Who every answers first and I think that answer is really good I will mark Brainly est!!!! Please help me! I need details! Please I really need this

Answers

Im not good at coordinate graphs but I think the answer is the second one, sorry if I'm wrong!! :)

For the first one just go from -1 and down to 1

- 8th Grade Math -

How many grams each of a 10% salt solution and a 5% salt solution must be mixed in order to obtilain 400 grams of an 8% solution? (10% = 10/100)

Answers

Answer:

240g of 10% salt solution and 160g of 5% salt solution

Step-by-step explanation:

Simpler way:

Let X be the amount of 10% salt solution and Y be the amount of 5% salt solution.

Then X:Y = 3:2 as you need more 10% salt solution than 5% salt solution to create a 8% salt solution. The ratio 3:2 is given as 10 - 8 = 2 and 8-5 = 3.

If X:Y = 3:2 = 60:40, then 60% of the 400g of 8% salt solution must be the 10% solution and 40% of the 400g of 8% salt solution must be the 5% solution. Therefore, 240g of the 10% salt solution and 160g of the 5% salt solution is needed to create 400g of the 8% salt solution.

This is correct as the amount of salt in the solution is equal to (10% X 240g = 24g) + (5% of 160g = 8g). So the total amount (24+8) 32g should be equal to the amount of salt in the 400g of 8% salt solution.

8% of 400g = 32g which means our answer is correct.

More complex way:

A more complex way is to use algebra.

Let X be the amount of 10% salt solution and Y be the amount of 5% salt solution.

X + Y = 400g

and 10% of X + 5% of Y = 8% of 400

so 1/10 X + 1/20 Y = 32

2X + Y = 640 (multiply the previous equation by 20)

Now from the first line we know that X + Y = 400

So if we subtract (2X+Y) by (X+Y) we can get the value of X:

(2X+Y) - (X+Y) = 640 - 400

2X+Y - X - Y = 240

Therefore X = 240

And since X + Y = 400, Y = 160.

240g and 10% of sugar

Classify 3
a. Natural, whole, integer, rational
b.whole, rational
c.integer
d. rational

Answers

A because 3 is rational, and it’s a natural and whole number because it’s about 0. It’s an integer because integers include negative and positive numbers.
It c I had this question I know it's c

please helpp me i'm kinda not smart in da head

Answers

Answer:

the answer would be C.

Step-by-step explanation:

C is your answer

Answer:

answer b

Step-by-step explanation:

A 100-meter sprint is a race using only the straight side of a race track. A 400-meter stick is a race that makes one complete a lap around a racetrack. Why are velocity and speed the same for a 100 m sprint but not a 400 m sprint

Answers

Answer

Because velocity and speed differ each other by direction, in a 100 m sprint race the person moves in a straight path without changing its direction where as in a 400 m race. The person moves in a lap around the race track and the direction changes as he turns according to the race track.

Step-by-step explanation:

<3

Because velocity and speed differ

I WILL MARK AS BRAINLIEST! Write an Equation that represents the points in the table

Answers

Answer:

y= -x+2

Step-by-step explanation:

Using the equation, y = mx+b, you know you have to find the slope. Find the slope using two coordinate points, (-2,4) and (0,2).

Subtract 2-4/0+2 - the answer is -1. Your slope is -1 and the y axis is given so the equation is y=-x+2

Y=-2+x
Hope it help
Mark me brainlist

what are 3/4 equivalent to?

Answers

Answer:

6\8

Step-by-step explanation: Because 3/4 times 2/2 is 6/8

.75, 75 percent, 3/4 of a whole, and so on

At a college, the cost of tuition increased by 10%. Let t, represent the former cost of the tuition. What is the new cost of tuition?

Answers

The answer if I have come up with is t = t/10
The answer would be T=t/.10

Find the number that makes the ratio equivalent to 45:15.
:3

Answers

Answer:

9

Step-by-step explanation:

45/15=x/3

3*3=x

x=9

Answer:

3*5=15 so __*4=45 so answer is 45/5=9

Step-by-step explanation:

Treya practices typing 1/8 hour each day. How many hours does Treya practice typing in 3 days?

Answers

Answer:

3/8

Step-by-step explanation:

In 1 day = 1/8

In 3 days = 1/8 x 3 = 3/8

Answer:

It is ⅜ hours

Step-by-step explanation:

[tex]{ \sf{1 \: day = \frac{1}{8} \: hours}} \\ \\ { \sf{3 \: days = (3 \times \frac{1}{8} ) \: hours}} \\ \\ = \frac{3}{8} \: hours[/tex]

Help!
Write 3*3*3*3 in exponential form.

Answers

Answer:

3⁴

Step-by-step explanation:

3*3*3*3 is equal to 3⁴

That would be 3 to the 4th power

Please help:
First photo is the graph, second is the questions.

Answers

Answer:

i don't know ok but today is my math exam

There’s only one photo

Find the area of each parallelogram.

Answers

a = 6
b = 8

explanation

Please help! Greatly appreciated sorry for bad quality

Answers

Answer: D

Step-by-step explanation: 15 : 5 is equivalent to 60 : 20 because you multiply both sides by 4

Answer: D

your welcome, hope this helps you

I WILL MARK BRAINLIEST! Solve for X

Answers

Answer:

Step-by-step explanation:

You are to assume in both problems that the two triangles are similar. That is a very dangerous assumption -- especially in later math classes. But in this case, there is no other way to do the problem. The two sets of triangles look like they are proportional.  So set up two ratios that are = to each other

On the left

long side small triange / long side large triangle = base small triangle / base large triangle

On the right

hypotenuse/longest leg = hypotenuse / longest leg.

Problem A

Set up the similar Proportion

5/40 = x/20                Cross Multiply

40x = 20*5

40x = 100                   Divide by 40

x = 100/40

x = 2.5

Problem B

Again set up the similar triangle proportion

15/10 = x/2                  Multiply by 2

15*2/10 = x              

3 = x

for the first one x=2.5
for the second one x=3

3 fewer than a number squared and four

Answers

Answer:

([tex]n^{2}[/tex]+4)-3

Step-by-step explanation:

since it says "and four" i think it means it is in parenthesis

Answer:

n^2 + 1

Step-by-step explanation:

Let the unknown number be n.  Then "a number squared and four" is

n^2 + 4, and 3 fewer than this result is

n^2 + 3 - 3, or n^2 + 1

I WILL MARK AS BRAINLIEST! Solve for X and Y

Answers

Answer:

9)-1=x+19

-x =19+1

-x=20

-x÷-1=20÷-1

x=20.

Answer:

Step-by-step explanation

Find the size of each missing angle. (image attached)

Answers

Answer:

a is right angle

Step-by-step explanation:

a-110
b-75
c-128
d-78
e-58
f-71

Help me Guess just help please

Answers

Answer:

35

Step-by-step explanation:

√441 + 784 =

Add 441 and 784

√1225

Simplify

35
Answer: 35sqrt(5)

Explanation:

Sqrt(441 + 784)
= sqrt(1225)
= sqrt(5^3 x 7^2)
= 5 x 7 x sqrt(5)
= 35sqrt(5)

Answer needed WITH explanation asap

Answers

Answer:

14

Step-by-step explanation:

5x + 2 + 48 = (180-120)+30 +30

5x+50 = 60+30+30

5x+50=120

5x=120-50

5x = 70

x = 70/5

x = 14

14 is right I hope y’all are having a great day

PLEASE SOLVE ALL OF THE QUESTIONS IN FULL

Answers

OHYADOYOUSEE THISDO✌YOUSEETHISOPENYOUREYESSHIKIMARUITSAREGULATIONHEADBAND
hope this helps :)
5: a) 0.75x+6
b) 1.5x-2
c) -0.5x+3
d) -0.14x-4
6: a) 2.5
b) 3
7: a) -5
b) 76
c) 23
d) 22
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