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

HELP ASAP. pls ‍❤️‍‍ if u do this i’ll luv u 4ever

Answers

Answer:

A' ( 2,3)

B' ( 5,5)

C ( 7,3)

D'(5,2)

Do the ratios 20 /8 and 7 /3 form a proportion

Answers

Answer:

no

Step-by-step explanation:

im smart

Please help?

I need to find the measure of LO, NO

Answers

Answer:

[tex]LO = 14 \\ NO = 14[/tex]

Step-by-step explanation:

[tex]m + 7 = 2m \\ 2m - m = 7 \\ m = 7 \\ (7 + 7) = LO \\ (2 \times 7) = NO[/tex]

There are many cylinders with a height of 9 inches. Let R represent the radius in inches and V represent the volume in cubic inches.
R V
1
2
3
Complete the table relating the radius and volume of cylinders with height 9 inches. Write each volume as a multiple of pi or round to the nearest cubic inch.
Is there a linear relationship between the radius and the volume of these cylinders? Explain how you know.
If a cylinder with height 9 inches and radius (R) s filled with water, it can fill a certain pitcher. How many of these pitchers can a cylinder with height 9 inches and radius 2r fill? Explain how you know.

Answers

Answer:

R V

1  9π in³ 

2  36π in³

3  81π in³

Step-by-step explanation:

For, r = 1

V = π(1)²9 = 9π in³

For, r = 2

V = π(2)²9 = 4*9π in³ = 36π in³

For r = 3

V = π(3)²9 = 9*9π in³ = 81π in

R V

1  9π in³ 

2  36π in³

3  81π in³

PLEASE HELP THIS IS ALMOST DUE

Answers

Answer:

32.85°

Step-by-step explanation:

Used a fancy calculator & just took a test like this

good luck, i hope this helps :)

Answer:

x = 32.8599

Step-by-step explanation:

you have the hypotenuse and the side adjacent to the angle, so you use

Cos(x) = adjacent/hypotenuse

so

Cos(x) = 21/25

x = cos^-1(21/25)

put this in a calculator:

x = 32.8599 (rounded)

Find the volume of the prism.​

Answers

Answer:

4.375cm

Step-by-step explanation:

You have to look at what volume equals Volume= l×w×h so 3/2 × 5/4 × 7/3

Kevin, Luke and mat share £200 in the ratio 1:4:3 how much more money does Luke receive than Kevin

Answers

Answer:

£75

Step-by-step explanation:

sum the parts of the ratio, 1 + 4 + 3 = 8 parts

Divide the amount by 8 to find the value of one part of the ratio

£200 ÷ 8 = £25 ← value of 1 part of the ratio, then

4 parts = 4 × £25 = £100 ← Luke's share

Thus

£100 - £25 = £75

Luke receives £75 more than Kevin

<1 and <2 are complementary angles. The measure of Z1 is 41°. The measure of <2 is 7(x - 1)º. Find the value of x.
HELP NOW I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER

Answers

Answer:

i think its x=16 or x=11

Step-by-step explanation:

∠2 = 90 - 42 = 48 degrees

3x degrees = 48 degrees

3x = 48

x = 16

16

Complete the table for the given rule

Answers

x= 4/3
first y= 10/3
second y=8

Now use the expression found in Part C for the distance between your eyes and the object at point O, and find the ratio of the apparent distance to the real distance, d/D. Remember that the apparent distance is the distance calculated by your eyes using the angle θa instead of the angle θw. Since we are dealing with small angles, you may use the approximation sin(x)≈x and asin(x)≈x.

Answers

Answer:

Hello your question is incomplete attached below is the missing part of the  question

answer :  ( d / D )  =  [tex]n_{a}[/tex]

                                 [tex]n_{w}[/tex]

Step-by-step explanation:

Given data:

Apparent distance = distance calculated using angle ∅a

also applying the approximation ; sin(x) ≈ x  and  asin(x) ≈ x

Find the ratio of apparent distance to real distance (d / D )

Using the given data in the question the ratio of apparent distance to real distance ( d / D )  =  [tex]n_{a}[/tex]

                                 [tex]n_{w}[/tex]

where [tex]n_{a}[/tex] = index of refraction ( air )

           [tex]n_{w}[/tex] = index of refraction ( water )

One of the sides of a parallelogram has the length of 5 in. can the lengths of the diagonals be: 4 in and 6 in?
PLEASE PROVIDE AN EXPLANATION

Answers

Answer:

Yes, the diagonals could be 6 and 7 in. In a parallelogram, only the opposite sides of the parallelogram are congruent.

Step-by-step explanation:

In a parallelogram, the diagonals bisect each other, so you can set the labeled segments equal to one another and then solve for . \displaystyle 20 - 3x = 2x - 4 \rightarrow 24 = 5x \rightarrow 4.8 = x. Then, substitute 4.8 for in each labeled segment to get a total of 11.2 for the diagonal length.

केविन अपनी छुट्टी के लिए स्नोबोर्डिंग जाना चाहता था। बताएं कि वह बॉक्स प्लॉट्स से बर्फबारी के आंकड़ों के आधार पर रिज़ॉर्ट ए या रिज़ॉर्ट बी में जाने के बारे में अपना निर्णय कैसे ले सकता है।

Answers

Answer: I ate my dogs bone

Step-by-step explanation:

A statistical question anticipates that answers will vary. Which of these are examples of statistical questions?A)What did Sally eat for lunch today?B)How many brothers does Andrew have?C)How many eucalyptus leaves does a koala eat each day?D)How many minutes does each student spend texting each day?E)How many math classes are taught by Mr. Martin this semester? ! Mulitiple choice

Answers

Answer:

c and d

Step-by-step explanation:

A statistical question is a question that can be answered by collecting data that vary. For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question.

0 Example: Loan payments of $400 due 95 days ago and $700 due today
are to be repaid by a payment of $600 thirty days from today and the
balance in 125 days. If money is worth 6% and the agreed focal date is
125 days from today, what is the size of the final payment?​

Answers

Answer:

[tex]X=\$519.48[/tex]

Step-by-step explanation:

From the question we are told that

Loan 1 [tex]X_1=\$400[/tex]

Loan 1 due [tex]t_1=95days[/tex]

Loan 2 [tex]X_2=\$700[/tex]

Loan 2 due[tex]t_2=0days[/tex]

Payment [tex]Y=\$600[/tex]

Worth of money [tex]w=6\%[/tex]

Payment due [tex]t=30days[/tex]

Focal date [tex]t_f=125days[/tex]

Generally [tex]\$400[/tex] was due 95days ago

Therefore

[tex]125+90=220days[/tex](total days to consider)

Therefore

[tex]300+400 =700[/tex] is due today

125days left

Given

600 due in 30days

[tex]125-30=95days[/tex]

Generally the Final payment is mathematically given by

[tex]400(1+ 0.06*\frac{220}{365} ) + 700(1+0.06*\frac{125}{365} )=600(1+0.06*\frac{95}{365} )+X[/tex]

[tex]X=1128.9692 - 609.3698[/tex]

Therefore the

[tex]X=\$519.48[/tex]

A triangle has side lengths of (3.76 + 1.7) centimeters, (1.36 + 1.1) centimeters,
and (7.1c +5.1) centimeters. Which expression represents the perimeter, in
centimeters, of the triangle?

Answers

Answer:

Step-by-step explanation:

our triangle has one length:     3.76+1.7=5.46

                           another side: 1.36+1.1=2.46

                            last side:        7.1+5.1=12.20

Perimeter is=5.46+2.46+12.20=20.12 cm

Write an expression that represents the height of a tree that begins at 9 feet and increases by 3 feet per year. Let y represent the number of years.

Answers

Answer:

h=3y+9

Step-by-step explanation:

We will write an expression using the y=mx+b format.

h in this case will be the height at any given year.

3 is the rate at which the three grows, y will represent any given year.

9 is the starting rate, or your y intercept.

Answer:

h=3y+9

Step-by-step explanation:

let h represent the height of the tree

h=3y+9

x=-7y+5
5x=4y=-6
solve by substitution

Answers

5x (-7)y=4
y=-4/35
5x=4
x=4/5
(x, y) = (4/5, 4/35)

Paul built a triangular garden in his backyard, which is enclosed by a rectangular fence. How much of the backyard is not covered by the garden

Answers

Answer: 476m²

Step-by-step explanation:

Find the area of the triangle and then subtract it from the area of the rectangle.

Area of triangle = 1/2 * base * height

= 1/2 * 8 * 6

= 24m²

Area of rectangle:

= Length * Width

= 25 * 20

= 500m²

Area not covered by garden:

= 500 - 24

= 476m²

how would I do this? ​

Answers

Answer:

umm

Step-by-step explanation:

1) 1/5 as a percentage:
1/5 x 100 = 20
Answer = 20%

2) 10/100 as a percentage:
(This is already over 100 so the answer would just be 10%)

3) 1/100 as a percentage:
(Again, this is already over 100 so the answer would just be 1%)

4) 2/5 as a percentage:
2/5 x 100 = 40
Answer = 40%

5) 3/5 as a percentage
3/5 x 100 = 60
Answer = 60%

6) 4/5 as a percentage
4/5 x 100 = 80
Answer = 80%

7) 1/2 as a percentage
1/2 x 100 = 50
Answer = 50%

8) 5/100 as a percentage
(This is already over 100 so the answer would just be 5%)

9) 3/4 as a percentage
3/4 x 100 = 75
Answer = 75%

10) 3/10 as a percentage
3/10 x 100 = 30
Answer = 30%

11) 2/3 as a percentage
2/3 x 100 = 66.6666
Round it to the nearest whole number or decimal
Answer = 66.7%

12) 1/3 as a percentage:
1/3 x 100 = 33.33333
Round it to the nearest whole number or decimal
Answer = 33.3%

Basically just multiply the fraction by 100 each time to get your answer

Please help with this, I have no clue what it means.

Answers

Answer:

LN = 4.326

Step-by-step explanation:

dropping a perpendicular from point k to LM

call that point on line LM, point X

angle KLM = 47 degrees so angle NKL = 28 degrees

sin 47 = KX/8.9

KX = 6.509

angle LKX = 90-47-28 = 15 degrees

tan 15 = XN/6.509

XN = 1.744

cos 47 = XL/8.9

XL = 6.070

XL-XN=LN

LN = 6.070-1.744 = 4.326

At a sale, suits were sold for 12% of their original price. If the suits originally cost $200 each, how much did a suit cost on sale?

Answers

Answer: $24

Step-by-step explanation:

12% = 0.12

200 × 0.12 = $24

I am not a professional, simply using prior knowledge!

Note- It would mean the world to me if you could mark me brainliest!

What is wrong with the equation below?
|x|= -3

Answers

Answer:

In mathematics, the absolute value or modulus of a real number x, denoted |x|, is the non-negative value of x without regard to its sign.

3. CLOVERS Nathaniel is searching for a four-leaf
clover in a field. He finds 2 four-leaf clovers during
the first 12 minutes of his search. If Nathaniel spends
a total of 180 minutes searching in the field, predict
the number of four-leaf clovers Nathaniel will find.

Answers

I think that it is 15 minutes

Answer:

Sham Rock is searching for a four-leaf clover in a field. He finds 2 four-leaf clovers during the first 12 minutes of his search. If Sham spends a total of 180 minutes searching in the field, predict the number of four-leaf clovers he will find.

Step-by-step explanation:

PLEASE PLEASE PLEASE ANDWER I WILL GIVE BRAINLIEST!!!


The Delaney family had their 25th wedding anniversary dinner catered by Augie's Restaurant. The cost of the dinner was $459. If they plan to leave a 20% tip and the sales tax is 7%, what will be the total cost of the dinner?

Answers

Answer:

602.25

Step-by-step explanation:

Who is known as India Bill Gates, and one of the Richest Indian from the past several years ? ​

Answers

Answer:

Mr. Azim Premji is known as the Indian Bill Gates

This is observed variable in an experiment or study changes are determined by the presence or degree of one or more independent variables when graft this variable is usually on the vertical axis

Answers

Answer:

This is the observed variable in an experiment or study whose changes are determined by the presence or degree of one or more independent variables. When graphed, this variable is usually on the vertical axis.

Step-by-step explanation:

Pleaseee answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!

Answers

Answer:

S And T               N and Q

Step-by-step explanation:

Opposite

please help:)I’m not good at math and need to get this done ASAP

Answers

Answer:

First and third options are equivalent, second and fourth options are not equivalent.

Step-by-step explanation:

Remember the relation:

[tex]a^n*a^m = a^{n + m}[/tex]

and:

[tex](a^n)^m = a^{n*m}[/tex]

We have the expression:

[tex]7^{1/5}*49^{7/5}[/tex]

We know that 49 = 7*7

Then we can write the above relation as:

[tex]7^{1/5}*49^{7/5} = 7^{1/5}*(7^2)^{7/5}[/tex]

We can use the second relationship from the above ones and write this as:

[tex]7^{1/5}*(7^2)^{7/5} = 7^{1/5}*7^{2*7/5} = 7^{1/5}*7^{14/5}[/tex]

Now we can use the first relationship to get:

[tex]7^{1/5}*7^{14/5} = 7^{1/5 + 14/5} = 7^{15/5} = 7^3 = 343[/tex]

Then:

The first option is equivalent.

The second option is not equivalent

The third option is equivalent.

The fourth option is not equivalent.

jajajaja helppppppppp <3

Answers

you can subtract from point 1 to point 2

(9,-2) - (8,3)

9-8= 1

-2-3= -5

therefore horizontal leg is 1

vertical leg is -5

you can also sketch and count the units :)

Given the following function and given domain, what is the range? f(x) = x2 +1; {-2, 1, 0, 2}​

Answers

Answer:

answer is zero in the following

Answer:

5,2,1,5

Step-by-step explanation:

Input the given domain to the equation

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