A student evaluated −4 + (−9 12) and got an answer of 5 12. What might the student have done wrong? explain in details

Answers

Answer 1

Answer:

[tex]the \: students \: calculation \: was \\ based \:on\: addition \: of \: the \: numbers \\ without \: cosidering \: thier \: nagative \: signs.[/tex]


Related Questions

The midpoint M of QR has coordinates (6, 6). Point R has coordinates (5, 7). Find the
coordinates of point Q.
Write the coordinates as decimals or integers.

Answers

Answer:

(7,5)

Step-by-step explanation:

Evaluate the expression for a = 4, b = 5, and c = −4. 17 − 7(a − b)2 =

Answers

17 -7 ( 4 - 5 ) square = 17 -7 ( 1) = 17 - 7 ×1 = 17 -7 = 10 is the answer.

pls help me on this question it is geometry​

Answers

Answer:

Contrapositive

Step-by-step explanation:

Original Statement: if p then q

Negation: not p

Contrapositive: if not q then not p

Inverse: if q then p

Converse: if not p then not q

What is the value of cos(tan-1(0))?

–1
0
1
StartFraction pi Over 2 EndFraction

Answers

Answer:

answer is 1

Step-by-step explanation:

just did test on edge

The value of cos(tan^-1(0)) is 1. Therefore, option C is the correct answer.

We need to find the value of cos(tan^-1(0)).

What are the trigonometric ratios?

In mathematics, trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec).

Now, cos(tan^-1(0))

⇒tan^-1(0)=0

⇒cos(0)=1

The value of cos(tan^-1(0)) is 1. Therefore, option C is the correct answer.

To learn more about trigonometric ratios visit:

https://brainly.com/question/1201366.

#SPJ5

Write an equation for the line that is parallel to y = 3/5x - 8 and goes through
the point (-15,-23)

Answers

Answer:

y=3/5x-14

Step-by-step explanation:

parallel lines have the same slope, so m=3/5

y=mx+b

-23=3/5(-15)+b

-23=-9+b

-14=b

y=mx+b

y=3/5x-14

what is the volume of 2 G piece of gold? (Best answers gives brainlist answers)​

Answers

Answer:

2 grams

Step-by-step explanation:

2 grams of gold is equivalent to 2 grams

Meredith scores a 72% on her quiz. She
misses 7 questions. What is the change in
her score in percentage points for each
question she gets incorrect?

Answers

Answer:

The answer is 4.

Step-by-step explanation:

The total percent is 100%. You subtract 100% with 72% which is 28. Then, you divide 28 with 7 and voila! The answer is 4.

The change in  her score in percentage points for each question she gets incorrect is 4%.

Using this formula

Change in score percentage=(100%-Scores %)/Number of missed questions

Where:

Scores %=72%

Number of missed questions=7 questions

Let plug in the formula

Change in score percentage=(100%-72%)/7

Change in score percentage=28%/7

Change in score percentage=4%

Inconclusion  the change in  her score in percentage points for each question she gets incorrect is 4%.

Learn more here:

https://brainly.com/question/19345514

Nash is training for a marathon and decides to train for 26 miles every week. In the first week, the ratio of the number of miles he ran to the number of miles he walked was 3:10. Use Scratchpad to draw tape diagrams to represent this ratio. How many miles did Nash run in week 11?

Answers

Answer:

78

Step-by-step explanation:

you do 3 *26

what is the 12
th term rule of the linear sequence 13 7 1 -5 -11​

Answers

Answer:

-53, f(n) = -6(n-1) + 13

Step-by-step explanation:

given the equation to this linear/arithmetic sequence for the nth term: f(n) = -6(n-1) + 13

f(12) = -6(12-1) + 13

f(12) = -6(11) + 13

f(12) = -66 + 13

f(12) = -53

*substitute and simplify*

______________

f(n) = f(1) + d(n-1)

given f(1) = 13, f(2) = 7, and f(3) = 1

7-13 = 1-7 = -6 = d

= f(1) + d(n-1)

f(1) = 13 so

the equation must be f(n) = 13 - 6(n-1) or -6(n-1) + 13

What is the equation of this line

A. Y = 2x - 3

B. Y = -1/2x - 3

C. Y = -2x - 3

D. Y = 1/2x - 3

Answers

I think the anser c that what i think

It costs $3.45 to buy3/4 lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts? Explain or show your reasoning. l​

Answers

Answer:

$34.5

Step-by-step explanation:

because 3/4 of a pound is basically .75 of a pound. so the conversion from .75 of a pound to 7.5 pounds is just multiplying by 10. therefor you just multiply the initial price by 10

Answer:

$34.50

Step-by-step explanation:

please give me brainliest

(11 . 10) . 6 = 6 . (11 . 10)
true or false

Answers

Lol this is not college material is it

Answer:

True

Step-by-step explanation:

I think it's right je8e

HELP
Figure EFGH is transformed to E'F'G'H, as shown:
Which of the following sequences of transformations is used to obtain figure E'F'G'H and EFGH​

Answers

Answer:

It would be C. Hope this helps

Pleaseeeeeeee, help meeeeeeee

Answers

kikaksyvjabsjxjjcjallalalalakjdiloveyouhahahahjss

what bro bye bro that’s weird bro

Julie has a bag of flour that holds 20 cups of flour. She needs 4 cups for each loaf of bread.
How many loaves of bread can she make? Explain.

Answers

5 because 20 divided 4 = 5.
she can make 5 breads because if they need 4 cups of flour to make bread and there’s only 20 cups you simply divide 20/5 and it give 4 so four loaf breads

Help meeeeeeeeeeeeee with thisssss please? i’l give brainiest or whatever it is called .

Answers

Answer:

16

Step-by-step explanation:

the amount of peppers are double the amount of servings, 8x2 = 16

Answer:

16

Step-by-step explanation:

8-4/ 4-2= 2

8 x 2= 16

Which term completes the product so that it is the difference of squares?
(-5x-3)(-5x+______)
-9
-3
3
9
PLEASE HELP:)

Answers

Answer: 3 :)

Ignore this part it needs to be long:
hshsgfasffsgsgwggshehs






Help please:)))
Find the equation of a line perpendicular to 4x - y = 2 that contains the point (4, -2). Write the equation in slope.
intercept form.

Answers

Answer:

y = -1/4x - 1

Step-by-step explanation:

First, put the equation in slope intercept form:

4x - y = 2

4x - 2 - y = 0

4x - 2 = y

y = 4x - 2

Perpendicular lines have opposite reciprocal slopes. Since the original slope is 4, the other line's slope will be -1/4

Plug in the given point and the slope into y = mx + b, then solve for b:

y = mx + b

-2 = -1/4(4) + b

-2 = -1 + b

-1 = b

Plug in the slope and b into the equation:

y = -1/4x - 1 is the equation

Please help with this math problem!!!!! ASAP please thanks! The photo is attached

Answers

Answer:

The answer will be the 2nd answer!

Step-by-step explanation:

Your Welcome!!

2nd answer reflected over the y-axis

find the missing
number
+ 16 = 28​

Answers

+16=28 is equal to 12
it’s the same as subtracting 28 from 16 so 28-16 is 12 and that’s your answer!

Question 4 of 5
Quadrilateral ABCD is reflected across the x-axis. What are the coordinates
of quadrilateral ABCD?
ADLY
01/2)
ch
A. A (5,5), B (5, 1), C(2, 1), D' (1,5)
B. A' (5-5), 8 (1.-5), C'(1, -2).
D'(5-1)
C. A'(-5-5), 8'(-1,-5), C (-1.-2)
D'(-5-1)
OD. A (5,5), B'(1,5), C' (1,2), D'(5, 1)

Answers

it will definitely be C

any time there it a reflection across the x-axis the coordinates then become (x,-y)

Mrs. Perez has 28 students and 5
7
of those students participate in school sports. How many of Mrs. Perez’s students participate in school sports?

Answers

Answer:39 1/5

Step-by-step explanation:

Find the product. Tell which strategy you used.
1. 5 X 7 X 20
2.

Answers

Answer:

The product is 700

Step-by-step explanation:

I just multiplied them If it correct plz give me brainliest thanks :)

hello please will give brainliest!

Answers

Answer:

A.

Step-by-step explanation:

Just means for every 4 cans of soup, you need 3 pb jars

Cans of soup : jars of peanut butter

4:3

8:6

16:12

20:15

What is the total number of digits required in numbering the pages of the book, which has 76 pages?

Answers

Answer:

152

Step-by-step explanation:

Please mark as brainliest.

can someone please help me

Answers

Answer:

what do you need?

Step-by-step explanation:

Answer:

The first is

Basketball : 2

Football :0

Nd da 3rd one (donno da name) : 4

Step-by-step explanation:

Please mark as brainliest

A submarine descends to a depth of 600 feet below the surface in 10 minutes. At this rate, what integer represents the change, in feet, of the submarine's position after one minute?
I really need help.​

Answers

A submarine descends to a depth of 600 feet below the surface in 10 minutes. At this rate, what integer represents the change, in feet, of the submarine's position after one minute?

First you need to list what you're given.

A submarine descends to a depth of 600 ft below the surface in 10 minutes. The question is asking for the change of the submarine's position after one minute. This can be represented as fractions in terms of [tex]\frac{distance}{time}[/tex].

[tex]\frac{600}{10} = \frac{x}{1}[/tex]

You're looking for the value of x. First you need to cross-multiply.

[tex]600 \times 1 = 10 \times x\\600=10x[/tex]

Since you're looking for x alone, you need to divide both sides by 10. This will eliminate the 10 since x is being multiplied by 10, and 10 divided by 10 is 1, making it 1x or x.

[tex]\frac{600}{10} = \frac{10x}{10}[/tex]

[tex]60=x[/tex]

That means the submarine is descending at a rate of 60 feet per minute, which can be represented as -60.

If you're looking for the submarine's position after one minute, all you have to do is subtract 60.

600 feet below surface is represented as -600.

[tex]-600-60=-660[/tex]

The submarine's position after one minute is 660 feet below surface(-660).

Participation Quiz 10-23-2020 NEED HELP PLZZZZZ!!!!

Question 1 options:
m∠A = _____˚

m∠B = _____˚

m∠C = _____˚

m∠X = _____˚

m∠Y = _____˚

m∠Z = _____˚

Segment AB = _____ units

Segment BC = _____ units

Segment AC = _____ units

Segment XY = _____ units

Segment YZ = _____ units

Segment XZ = _____ units

Answers

Answer:

angle A is 53°

angle B is 90°

angle C is 37°

angle X is 53°

angle Y is 90°

angle Z is 37°

AB=3

BC=4

AC=5

XY=3

YZ=4

XZ=5

A 2-column table with 5 rows. Column 1 is labeled Key Words with entries three, times, the difference of, nine, a number. Column 2 is labeled Replace With entries 3, times (minus), 9, h.
Write and evaluate the expression. Then, complete the statement.



three times the difference of nine and a number



Write and evaluate the expression. Then, complete the statement.

three times the difference of nine and a number

The value of the expression when h = 5 is ????

Answers

Answer:

12

Step-by-step explanation:

3(9-h) is the equation used for this problem h=5

9-5=4    3x4=12

hope this helps!

Choose the simplified form of the expression,
5x + 6x?- 2x + x
I need it fast please!!!

Answers

Answer:

10x

Step-by-step explanation:

If the question mark is an accident, the answer is 10x.

5x+6x-2x+x

11x-2x+x

9x+x

10x

Hi :)

First add 5x and 6x
5x + 6x = 11x

11x -2x + x

Combine 11x and -2x to get 9x

9x + x= 10x

Hope this helps!
Other Questions
the rectangle had a length that is 6 inches less that twice it's width. If the perimeter is 54, find the dimensions of the rectangle I WILL MARK BRAINLEST I NEED THIS NOW THOUGH...Use (2, 3) and (5,7) and put in Pt Slope Y-y1 = m ( x - x1)Hint: 1 find slope y-y/x-X2. Use first point for writing equation (2, 3)Show Your Work what is the square root of 392 between? 1. List the major ways in which humans are damaging the environment2. Floods can devastate an ecosystem, however they can also have a positive impact. Please explain the positive impacts major floods can have on the ecosystem. 3. How do seasonal changes in temperature, water availability and sunlight affect ecosystems? 4. Propose 5 ways that humans can help minimise the negative effects both natural events and human impact can have on ecosystems. What component of Earths atmosphere exists entirely as a result of photosynthesis?oxygen gaswater vapornitrogen gascarbon dioxide gas A line passes through the points (3, 4) and (6, 2). A coordinate plane. What is the x-intercept of this line? 3 2 2 3 How did other nations react to China as a result of Zheng Hes voyages?a Other countries were unimpressed by the Chinese state.b Nations gave China farming technology to improve Chinese agriculture.c The voyages demonstrated Chinese wealth and power to other countries.d Rulers decided that China did not have a strong navy and was not a threat. the image below show how a river can change over time which natural process most likely contributes to the bending of the riverA. deposition B. water current C. sedimentationD. mechanical weathering 90 times 10 the power of 4 During the Second Great Awakening, how did revival meetings differ from traditional church services in America?Revival meetings were loud and exciting, while church services tended to be formal and quiet.Revival meetings were led by Protestants, while church services were led by Catholics.Revival meetings only took place outdoors, while church services only took place indoors.Revival meetings were led by preachers, while church services were led by church members. Which of the following would be an example of competition in a biological community.A lion eating a gazelle.A mosquito sucking blood out of a human.barnacles being attached to a whale.O A deer and elk who both eat grass. Solve the following inequality:4(x - 6) < 3x + 13 Aerial photographs most often are taken from __________.A.aircraftsB.hot air balloonsC.satellitesD.space shuttlesPlease select the best answer from the choices providedABCD Why might a person want to help improve the health of people in his or her community Why does Chris dad call Mr. Evans? Is this true 2.01 < 2.2 is 0.83 equal to 83/100 pls someone help me with the worksheet below p.s im in grade 5 not college After a concert for 1,600 people, only 8 people said they would not go to see the band again. What percent of the people who went to the concert said they would not go to see the band again? (10 points). :) What is the worst result of a team leader failing to delegate responsibility ortasks?A. The leader will end up working many hours of overtime.B. The team will learn a lot by watching to see how the tasks shouldbe completed.C. Some team members find reasons to start fighting with othermembers.D. The team might feel that the leader does not trust their abilities.(Apex)