95 POINTS FOR AWNSER
Read this word problem.
In the morning, the temperature was

10°C. By the afternoon, it had risen to

2°C. What was the change in temperature from the morning to the afternoon?
To solve the problem, Luke subtracted

2–(

10) and came up with an answer of 8°C. Is Luke correct? Why or why not?

Answers

Answer 1

Answer:

[tex]yes \: he \: is \: correct \\ \underline{\boxed{(\triangle{ \delta}) = 8}}[/tex]

Step-by-step explanation:

[tex]change \: in \: temp. \: ( \triangle{ \delta}) = t_2 - t_1 \\ hence \to \\( \triangle{ \delta}) = (- 2) - (- 10) \\ (\triangle{ \delta}) = - 2 + 10 \\ (\triangle{ \delta}) = 10 - 2 \\ (\triangle{ \delta}) = 8[/tex]

Answer 2

Answer:

No

Step-by-step explanation:

Luke only does it mathematically, he didnt bothet to check first by following step by step explanation


Related Questions

if a ball is rolling down hill and accelerating at a rate of 2m/s^2 because of a 2N net force. What is the mass of the ball?

Answers

Answer:

1kg

Step-by-step explanation:

According to Newton's second law

Force = mass * acceleration

Given

Force = 2N

acceleration = 2m/s^2

Mass =Force/Acceleration

Mass = 2/2

Mass =1kg

Hence the mass of the ball is 1kg

a varies jointly as the square root of the product of b and c. if a = 24 when b = 8 and c= 2 , find v when a = 48 and c = 4​

Answers

Answer:

b = 16

Step-by-step explanation:

× stands for varies

a × √bc,

a = k√bc,

when a = 24, b = 8, c= 2

a = k√bc

24 = k√8•2

24 = k√16

24 = 4k

dividing both sides by 4

k = 24/4

k = 6

a = 6√bc (standard equation)

find b when a = 48 and c = 4

a = 6√bc

48 = 6√b•4

dividing both sides by 6

48/6 = √b•4

8 = √b•4

squaring both sides

8^2 = b•4

64 = b•4

b = 64/4

b= 16.

Thrrefore when a = 48, c = 4, b = 16.

Combine any like terms in the expression 4a + a​

Answers

4a is the same as adding "a" to itself 4 times.

So, 4a = a + a + a + a

Since 4a and a both have the term "a" in them,

4a + a = a + a + a + a + a

Since there are 5 a's on the right side, this can be combined to simplify,

4a + a = a + a + a + a + a
= 5a

⚠️I NEED HELP PLEASE⚠️

Fcator: x^2-18x+72=0
*work please*

Answers

Answer:

x = 12, 6

Step-by-step explanation:

Factor using the AC method.

Consider the form x² + bx + c. Find a pair of integers whose product is c and whose sum is b . In this case, whose product is 72 and whose sum is -18.

-12, -6

Write the factored form using these integers.

(x - 12)(x - 6) = 0

If any individual factor on the left side of the equation is equal to  0, the entire expression will be equal to 0.

x - 12 = 0, x = 12

x - 6 = 0, x = 6

i hope this helps, good luck :)

Please answer this today - First correct answer becomes brainliest


Suppose you know x+2y=-1 and 3y-x=-19. What is xy?

Answers

{ x+2y = -1
{ 3y-x = -19

{ x = -1-2y
{ -x = -19-3y

{ x = -1-2y
{ x = 19+3y

-1-2y = 19+3y
y = -4

x = 19+3(-4)
x = 7

(x,y) = (7,-4)

——
check solution
{ 7+2(-4)=-1
{ 3(-4)-7=-19

{ -1 = -1
{ -19 = -19

1. Maggie keeps track of daily bird sightings. The table below shows the number and type of swans that were seen in one day. What percent of the swans were mute swans? Round your answer to the nearest tenth of a percent.

Answers

Answer:

hello! i just did this problem and the answer is 12.2%

Step-by-step explanation:

first we need to add all of the swans together, then from there you take the amount of mute swans and divide it by the sum of all the swans! finally, multiply by 100 to convert into a percent and round it to 12.2%

hope this helped plz give me brainliest! <3

The solution is 12.2 %

The percentage of mute swans is given by the equation A = 12.2 %

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the percentage of mute swans be represented as A

Now , the equation will be

Let the total number of swans be S

The number of mute swans = 5  swans

The number of Trumpeter swans = 34 swans

The number of Tundra swans = 2 swans

So , the total number of swans S = 5 + 34 + 2 = 41 swans

And , the percentage of mute swans A = ( number of mute swans / total number of swans S ) x 100

Substituting the values in the equation , we get

The percentage of mute swans A = ( 5/41 ) x 100

On simplifying the equation , we get

The percentage of mute swans A = 0.1219 x 100

The percentage of mute swans A = 12.19

The percentage of mute swans A = 12.2 %

Therefore , the value of A is 12.2 %

Hence , the percentage is 12.2 %

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

Find the least common multiple of 15, 2, and 3.

Answers

Answer:

the LCM for 15, 2, and 3 is 30

Answer:

The Least Common Multiple of 15, 2, and 3, is 30

Step-By-Step

In order to determine the least common multiple (LCM), list the multiples of each number

3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30!!, 33, 39...

2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30!!!

15: 15, 30!!!!!!!!!

a line with a slope of 1 passes through the point (-7,-5). what is its equation in slope- intercept form? (y=mx+b)

Answers

Answer:

         y = x + 2

Step-by-step explanation:

Equation of line with a given slope of a and containing a given point (x₀, y₀):

y - y₀ = a(x - x₀)

a = 1,  x₀ = -7,  y₀ = -5

Therefore:

y - (-5) = 1(x - (-7))  

y + 5 = x + 7

y = x + 7 - 5

y = x + 2

5/6-1/4 What is the Lowest Common Denominator of the two fractions?

Answers

i believe 12 is your awnser but don’t trust me i’m a freshman and we stopped doing this awhile ago

A mountain bike originally priced at $960.00 is up for sale at a discount of 14%. What is the price of the mountain bike after the discount?

Answers

Answer:

$825.60

Step-by-step explanation:

Since the price of it is $960.00, it means that it's 100%.

100% = 960

1% = 960 ÷ 100 = 9.6

14% = 9.6 x 14 = 134.40

Since they asked for after the discount, deduct the price of the discount with the original price.

Mountain bike after 14% discount =

960 - 134.40 = 825.60

960.00x0.14= 134.4

960.00 - 134.4 = 825.6 < answer

Solve the equation.
4(x + 6) = 2(2x + 12)

Answers

Answer:

0

Step-by-step explanation:

Answer:

All Real Numbers

Step-by-step explanation:

[tex]4(x + 6) = 2(2x + 12)[/tex]

divide both sides by 2

[tex]2(x + 6) = 2x + 12[/tex]

[tex]2x + 12 = 2x + 12[/tex]

this is enough to prove that it's all real numbers, but it can be simplified even more

[tex]2x=2x[/tex]

subtract 2x from both sides

[tex]0=0[/tex]

0 will always equal 0, so x is all real numbers

A horizontal translation is used to move quadrilateral WXYZ onto quadrilateral
W′X′Y′Z′.

Use the drop-down menus to describe the horizontal translation used.

Answers

Quadrilateral W X Y Z is translated -10 units to the x axis

Or

Quadrilateral W X Y Z is translated 10 units to the -x axis

Answer:

10, left

Step-by-step explanation:

Pls Help!!! Evaluate each expression for the given value of each variable.
...

Answers

You have to substitute each of the numbers given.

a.
2 + (3)^3
2 + 27
Answer: 29

b.
(1/2)^2
Answer: 1/4

c.
3(5)^2 + (3)
75+3
Answer: 78

d.
10(4) + (6)^2
40 + (6)^2
40 + 36
Answer: 76

Line A passes through the points (220, 125) and (300, 75). Line B passes through the points (0, 0) and (30, 25). At what point do the lines intersect?

Answers

Answer:

No, Isiah is not correct. The GCF of the coefficients is 1, and there are no common variables among all three terms of the polynomial. 5b4 is a factor of -25a2b5 and -35b4, but not a3. Additionally, a2 is a factor of a3 and -25a2b5, but not -35b4

Joanne bought 5 candy bars for $3.50. How much is each candy bar? pls help !!

Answers

Answer:

70 cents

Step-by-step explanation:

all you have to do is divide $3.50 and 5 :)

$0.70 or 70 cents
Explanation:
All you have to do is take $3.50 divided by 5. You’ll get 0.7.

Last weekend, Mia ran 5% of a mile and Terrel ran 5/15 of a mile. Who ran a
larger portion of a mile? *

Answers

Answer:

Terrel ran a larger portion of mile

Step-by-step explanation:

5% of a mile is approximately

0.05 miles

5/15 of a mile is approximately

0.33 miles

so Mia ran 0.05 miles, Terrel ran 0.33 miles

Please Help File Is Attached

Answers

Answer:

x=25

10= 125

Step-by-step explanation:

2/50 is the answer to find 1

so 1= 25

and x means 1

to find 10 u multiply 25 with 10

hope i help its hard to explain but hope its well explained :)

Will only name Brainliest if its the correct answer!

Answers

Answer:

2

Step-by-step explanation:

[tex] \frac{( {( {x}^{3} {x}^{4} )}^{2}) }{ {( {x}^{5} {x}^{3} )}^{z} } = {x}^{ - 2} \\ \\ \frac{( {( {x}^{3 + 4} )}^{2}) }{ {( {x}^{5 + 3} )}^{z} } = {x}^{ - 2} \\ \\ \frac{ {(( {x}^{7} ) }^{2}) }{ {( {x}^{8} )}^{z} } = {x}^{ - 2} \\ \\ \frac{ {x}^{7 \times 2} }{ {x}^{8 \times z} } = {x}^{ - 2} \\ \\ \frac{ {x}^{14} }{ {x}^{8z} } = {x}^{ - 2} \\ \\ {x}^{14 - 8z} = {x}^{ - 2} \\ \\ 14 - 8z = - 2 \\ \\ 14 + 2 = 8z \\ \\ 16 = 8z \\ \\ z = \frac{16}{8} \\ \\ z = 2[/tex]

Answer:

sorry late. from next time it will be in time

On the grid below, which point is located in the quadrant where the x-coordinate is a negative number and the y-coordinate is a positive number?

A coordinate plane is shown. Point A is in quadrant 1, point B is in quadrant 2, point C is in quadrant 3, and point D is in quadrant 4.

A
B
C
D

Answers

Answer:

B

Step-by-step explanation:

Quadrant 1 is (+,+), quadrant 2 is (-,+), quadrant 3 (-,-), and quadrant 4 is (+,-).

Use the points (2, 2485.6) and (6, 1172.5) to write an equation of the line of fit in slope-intercept form. Let x be the years since 2010 and let y be the number of CDs in millions sold.

Answers

Answer:

y = -328.275x + 1829.05

Step-by-step explanation:

In this case, we need to write an equation of this form:

y = ax + b  (1)      a: slope    b: intercept

In order to calculate the slope, we need to use the following expression:

a = y₂ - y₁ / x₂ - x₁     (2)

So, we have two points here, so, from these points we can identify each of the elements so we can determine the slope.

Point 1: (2, 2485.6)

Point 2: (6, 1172.5)

The slope of this equation will be:

a = 1172.5 - 2485.6 / 6 - 2

a = -328.275

Now that we have the slope, to get the intercept "b", we just use any of the given points, and replace in the general equation (1) to solve for b:

2485.6 = -328.275(2) + b

b = 2485.6 - 656.55

b = 1829.05

With the value of a and b, we can write the general equation of the line for this:

y = -328.275x + 1829.05

Hope this helps

Answer:

the person above me is wrong!

(answer is in the picture)

A concert was recently held at the civic auditorium. All 5000 tickets were sold. a. 25% of the tickets were reserved seats that sold for $45 each. What was the total amount in sales for the $45 tickets?

Answers

Answer:

$56,250 is the answer.

Step-by-step explanation:

Hope this helps!!!!!!!

8 + Зу = 8 +4y

PLEASE HELP

Answers

Answer:

16+7y

Step-by-step explanation: More info please. To me it looks like you are adding common factors.

In a survey of 3,000 people who owned a certain type of car, 1800 said they would buy taht ype of car again. What percent of the people surveyed were satisfied with the car

Answers

60% would be the answer. You can find us by doing part overhaul equals percent over 100. Hope this helps

Which of the following is equivalent to 5 · (7 · 4)? *
A. 35
B. (5 · 7) · 4
C. 5 · (4 · 4)
D. 5 + (7 + 4)

Answers

B because you multiply 7 times 4 that’s 28 then times 5 that’s 140 so for b you do 5 times 7 that’s 35 then times 4 that’s 140 so b is the correct answer, hope it helps

4-(-4x - 3) > 36.
Show your work.​

Answers

Step-by-step explanation:

4-(-4x-3) > 36

4 + 4x +3 > 36

4x + 7 > 36

4x > 36-7

4x > 29

x > 29/4

Write 10,000 in scientific notation

Answers

1*10^4
Or
10^4
Either way

can you find the area for this?

Answers

Answer:

[tex]74.88yd^{2}[/tex]

Step-by-step explanation:

[tex]A=9.6*4.7+2*.5*9.6*(\frac{10.9-4.7}{2} )=74.88yd^{2}[/tex]

a telephone booth 7 ft tall casts a shadow 20 ft long. At the same time, a nearby fire hydrant casts a shadow 8 ft long. Find the height of the fire hydrant

Answers

Answer:

2 4/5 feet

Step-by-step explanation:

let 'x' = height of fire hydrant

7/20 = x/8

cross-multiply:

20x = 56

x = 56/20 or 14/5, which is 2 4/5

answer-->
7x/4a
?????​

Answers

Answer:

Yes that is correct!!!!

Step-by-step explanation:

5x/ 2a − 3x/ 4a

= 14ax/ 8a2

= 14x/ 8a

= 7x/ 4a

Step-by-step explanation:

I hope this helps, tell me if you need for it to be explained more

Simplify (p^2)^5
Paper one maths gcse question higher

Answers

Answer:

the answer is p^10 I put the explanation up

Other Questions
HALF a league, half a league, Half a league onward, All in the valley of Death Rode the six hundred. "Forward, the Light Brigade! 5Charge for the guns!" he said: Into the valley of Death Rode the six hundred. "Forward, the Light Brigade!" Was there a man dismay'd? 10Not tho' the soldier knew Some one had blunder'd: Theirs not to make reply, Theirs not to reason why, Theirs but to do and die: 15Into the valley of Death Rode the six hundred. Cannon to right of them, Cannon to left of them, Cannon in front of them 20 Volley'd and thunder'd; Storm'd at with shot and shell, Boldly they rode and well, Into the jaws of Death, Into the mouth of Hell 25 Rode the six hundred. Flash'd all their sabres bare, Flash'd as they turn'd in air Sabring the gunners there, Charging an army, while 30 All the world wonder'd: Plunged in the battery-smoke Right thro' the line they broke; Cossack and Russian Reel'd from the sabre-stroke 35 Shatter'd and sunder'd. Then they rode back, but not Not the six hundred. Cannon to right of them, Cannon to left of them, 40Cannon behind them Volley'd and thunder'd; Storm'd at with shot and shell, While horse and hero fell, They that had fought so well 45Came thro' the jaws of Death, Back from the mouth of Hell, All that was left of them, Left of six hundred. When can their glory fade? 50O the wild charge they made! All the world wonder'd. Honor the charge they made! Honor the Light Brigade, Noble six hundred! 55Which lines imply the theme or message of the poem?"Half a league, half a league,/Half a league onward,""Into the jaws of Death,/Into the mouth of Hell/Rode the six hundred.""When can their glory fade?""Flash'd as they turn'd in air/Sab'ring the gunners there""Theirs not to make reply,/Theirs not to reason why./Theirs by to do and die." which statement is true about points located in quadrant ll in the coordiante? 1a) solve the equation please urgent please help which organism would be numerous in the ecosystem?GrassRabbitsSnakesHawks You are given the following numbers.... 13, 60, 61, 63, 64 Which is the most appropriate measure of center for this data?A MeanB MedianC Mode need asap! The boiling point of hydrogen sulfide is low. Explain why. An oak tree is 15 meters tall and a bird is standing on the ground 8 meters from the tree. If the bird flies directly to the top of the tree, how far will it fly? HELP PLEASEEEEEEEEEEEEEE 2Which equation represents a line with a slope ofand a y-intercept of12527Help me pls Find the missing angle If heterozygous tall pea plant is crossed (mated) with another heterozygous tall pea plant,what is the genotype ratio of offspring? Read and choose the option with the correct conjugation that complete the sentences.Pepe, ________ el traje o los pantalones y camisa para la fiesta?Ni el traje ni los pantalones, no quiero ir a la celebracin. No estoy bien.Lo siento.________ estar solo en la casa.A: prefieres; PrefieroB: preferes; PreferoC: prefieren; PrefiereD: preferen; Prefere what color does pink and blue make? Given two angle measures and the length of the included side, does this side length affect the number of triangles that can be drawn? Explain. since two angle measures and the length of the included side are given, there is only one more than one way to draw the triangle. The number of triangles that can be drawn is not affected affected by the length of the given side One of the angles in an isosceles triangle is 74.What could the other two angles be? Plzzzz help me plzzz help Help me asap number 4 Which equation is equivalent to 16^2p = 32^p+3? Which sentence most clearly describes diction?i