Which student’s first step was incorrect, and why?

Answers

Answer 1

Answer:

Todas las sustancias esenciales para el funcionamiento del organismo se obtienen a partir de los alimentos?


Related Questions

The cube of a negative number divided by the square of 5 times a number

Answers

Answer:

finding a cube of a negative number will always be negative , just as the cube of a positive number will always be positive

Step-by-step explanation:

Which situation could the expression −255 represent? A Each of 5 golfers has the same score after 9 holes. The total of their scores is -25. So, each golfer's score is -5.Each of 5 golfers has the same score after 9 holes. The total of their scores is -25. So, each golfer's score is -5. B A temperature increases 25°F over 5 hours. So the temperature increased by 5°F per hour.A temperature increases 25degreeF over 5 hours. So the temperature increased by 5degreeF per hour. C A football team gains 25 yards in one play. They lose 5 yards in the next play. In the two plays combined, the team gained 5 yards.A football team gains 25 yards in one play. They lose 5 yards in the next play. In the two plays combined, the team gained 5 yards. D Over 5 weeks, Alyson withdraws $25 per week from her checking account. Altogether, she withdraws $125.

Answers

Answer and explanation:

Not sure if the question is complete or valid but I will explain each option:

Let's assume the question asks which of the options would provide a negative result of -25( as no option evaluates to -255)

A. There would be a negative result here since all golfers have a negative score of -5 after 9 holes, and therefore a total score of -25 for all five golfers

B. Temperature increases by 25 degrees after 5 hours hence 5 degrees increase for every 1 hour. This would obviously give a positive result.

C. A football team gains 25 yards in the first play and loses 5 yards in the second but has a result of 5 yards gained in total. Hence there was a penalty of losing 20 yards for a loss of 5 yards= 25 yards- 20 yards= 5yards

D. Alyson withdraws $25 every week for 5 weeks, therefore she withdraws $125 in 5 weeks. This would be a negative result of -$125.

express 25 minutes as fraction of 1 hour

Answers

Answer:

1/4

Step-by-step explanation:

The experimental probability of getting a 6 on a number cube is StartFraction 7 over 40 EndFraction. Which is true about the event’s experimental probability? The number 6 came up a total of 40 times. The number 6 came up 7 times out of a total of 40 trials. The number cube was rolled a total of 47 times. After 7 trials, the number 6 came up 40 times.

Answers

Answer:

The number 6 came up 7 times out of a total of 40 trials.

Step-by-step explanation:

took the test

The correct option is the number 6 came up 7 times out of a total of 40 trials.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

Event:  getting a 6 on a number cube

P( getting a 6 on a number cube) = 7/40

So, to expand the meaning of given probability we have

The number 6 came up 7 times out of a total of 40 trials.

Learn more about probability here:

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1) The ratio 20 minutes to 1hour can be written 1:n. What is the value of n.

2) The scale on a map is 1:25000 how many kilometres on the ground is represented by 9 cm on the map?.

Answers

Answer:

n=3 x=225,000km

Step-by-step explanation:

1hour=60mins

20:60

1:3

n=3

1/25000=9/x

x=9×25000

x=225,000km

hope it helps:)

b: 8/5 + 61/2=
Please help me solve

Answers

Answer:

32.1

Step-by-step explanation:

find the line of reflection if the image of (-5, -2) is each of the following

a. (5, -2) |_____|

b. (2, 5) |_____|

c. (-5, 0) |_____|

d. (1, -2) |_____|

Answers

Answer:

A: -5, 2

B: -2, -5

C: 5, 0

D -1, 2

Hope this helps!

Pls look at the picture and help me answer it pls

Answers

Answer:

5 times 2

Step-by-step explanation:

Answer:

10 divided by 2

Step-by-step explanation:

There is ten circles and there's two sets of them. Each set has 5 circles meaning all you're doing is 10 divided by 2.

4.89 is this a rational or a irrational

Answers

Answer:

Rational because it isn't a repeating decimal

Step-by-step explanation:

please help me find the answer

Answers

Answer: x=2

Step-by-step explanation:

What you do is you plug the y equation on top and you substitute it in for the y on the equation below. You have -3x=-2(-5x+8)-10

Juan wants to solve the equation below using the Distributive Property.4(6 – x) = 12What should Juan’s first step be?
A.Multiply 4 by x.
B.Subtract x from 6.
C.Distribute 4 to (6 – x).
D.Subtract 4 from both sides.

Answers

Answer:

C

Step-by-step explanation:

Juan's first step to solve the distributive property will be to distribute 4 to (6 – x). The correct option is C.

What is distributive property?

This property states that multiplying the total of two or more addends by a number will produce the same outcome as multiplying each addend by the number separately and then adding the results together.

Given that Juan wants to solve the equation below using the Distributive Property 4(6 – x) = 12.

The equation can be solved as:-

4(6 – x) = 12

24 - 4x = 12

4x = 36

x = 9

Hence, the value of x is 9 when the equation is solved by distribution.

To know more about distributive property follow

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PLZ HELP ASAP!
The altitude of a triangle is a line or segment that passes through a vertex and is perpendicular to the line containing the opposite side.
TRUE OR FALSE?

Answers

The answer you’re looking for is true

i need help on this please

Answers

Answer:

1 solution

Step-by-step explanation:

If you solve for the system of equations you get (0,1) or x=0; y=1. This leads us to select B: One Solution as our answer choice.

If you can please give my answer the brainliest that would be much appreciated. Thanks!

Please help me with this

Answers

X is equal to 4. :)

help me graph this i with a step by step guide if possible ​

Answers

Answer:

n≥9

Step-by-step explanation:

n-7>=2

change the equation

n≥2+7

add 7 to 7 and two the seven gets canceled out and you are left with n≥9

5,-15,35,55....
What is the common difference

Answers

Answer:

The common difference is -20

Step-by-step explanation:

Simply subtract 5 from -15

-15-5 = -20

the common difference is -20! Person above is correct

Introduction to the quotient rule of exponents: simplify x3/x5

Answers

Answer:

the answer is 15 :)

Adele is 5 years older than Timothy. In three years, Timothy will be 2/3 of Adele’s age. What is Adele’s current age?

Answers

Answer:

12 years old

Step-by-step explanation:

Answer:

Step-by-step explanation:

Select all the equations that represent the distance formula. Group of answer choices LaTeX: d=\sqrt{\left(x_1-x_2\right)^2+\left(y_1-y_2\right)^2} d = ( x 1 − x 2 ) 2 + ( y 1 − y 2 ) 2 LaTeX: d=\sqrt{\left(x_2+x_1\right)^2+\left(y_2+y_1\right)^2} d = ( x 2 + x 1 ) 2 + ( y 2 + y 1 ) 2 LaTeX: d=\sqrt{\left|x_2-x_1\right|^2+\left|y_2-y_1\right|^2} d = | x 2 − x 1 | 2 + | y 2 − y 1 | 2 LaTeX: d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2} d = ( x 2 − x 1 ) 2 + ( y 2 − y 1 ) 2 LaTeX: d=\sqrt{\left(x_2+x_1\right)-\left(y_2+y_1\right)}

Answers

Answer:

[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

The distance between two points A(x₁,y₁) B(x₂,y₂) is given by the formula as follows :

[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

It is used to find the distance between two points. It is an application of the Pythagorean theorem. Usually, the distance covered is equal to the product of speed and time. But when speed and time in not given but coordinates are given, then only we can use this formula.

Did i do this right plz help

Answers

No, the first one you did get correct but the second, third and fourth are wrong here is you correct answer.
F(x) = 4x - x to the second power
So you substitute x for the numbers under x.
The second answer under f(x) is wrong it’s suppose to be...
F(x) = 4(0) - 0 to the second power the answer is 0.
The third answer under f(x) is also wrong the answer is...
F(x) = 4(-1) - -1 to the second power the answer is -3.
Looking back I see that under x the number 2 in f(x) is wrong also.
The answer Is f(x) = 4(2) - 2 to the second power equals 4.

Answer:

No

Step-by-step explanation:

Answer:

0,0

1,3

2,4

3,3

-2(x-4)=-16
SOLVE FOR X!!

Answers

Answer:

x = 12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

-2(x - 4) = -16

Step 2: Solve for x

Distribute -2:                    -2x + 8 = -16Isolate x term:                  -2x = -24Isolate x:                           x = 12

Step 3: Check

Plug in x to verify it's a solution.

Substitute:                    -2(12 - 4) = -16Subtract:                       -2(8) = -16Multiply:                        -16 = -16

Here we see that -16 does indeed equal -16.

∴ x = 12 is a solution of the equation.

Which has the lowest minimum temperature between -6, 4, -7, -1, 5, -3

Answers

Answer:

-7

Step-by-step explanation:

Can somebody help me with this? Will mark brainliest!

Answers

Answer:

Choice 1

Step-by-step explanation:

because if you rotate it a couple times it will end up in the same position as the other. idc about brainliest go ahead and give it to the other person pls

PLZ HELP ME NOW!!!!! I WILL GIVE BRAINLIEST!!!
combine like terms
3a + 7 - 11 - 9a

Answers

Answer:

-6a - 3

Step-by-step explanation:

hope this helps

Answer:

11a -18

Step-by-step explanation:

Inverse 9A make it to -9A take it to the other side and inverse +7 to -7 and take it to below -11 so -11 -7 is -18

Evaluate -8 × |2|.

A)-10
B)10
C)-16
D)16

Answers

Answer:

-8*|2|=-16, so Option C: -16 is the correct answer.

Step-by-step explanation:

-16 C because 2 stays the same and the 8 makes it negative

The melting points of some chemical elements are shown below. Nickel: 2,651 Mercury: -37.89 Helium: -458 Copper: 1,984.32 a) Which two elements have melting points that are closest in value? b) What is the average melting point of the substances? Round your answer to the nearest tenth. Explain how you got to the answer.

Answers

Answer:

Mercury and helium

1034.8575

Step-by-step explanation:

Given that :

Melting point of substances :

Nickel: 2,651

Mercury: -37.89

Helium: -458

Copper: 1,984.32

Melting means change of solid to liquid

a) Which two elements have melting points that are closest in value?

The difference in Melting point between mercury and helium :

- 37.89 - (-458) = 420.11

Nickel and copper :

2651 - 1,984.32 = 666.68

Hence, element with melting point which are closest in value Are Mercury and helium

b) What is the average melting point of the substances?

Sum of the melting points / number of substances

(2,651 + (-37.89) + (-458) + 1,984.32) / 4

= 4139.43 / 4

= 1034.8575

Monica bought a package of 434 party favors to give to the guests at her birthday party. She calculated that she could give 9 party favors to each guest and she wanted to have 20 left over to give to a friend who was also throwing a party. How many guests is she expecting?

Answers

Answer:

so meh answer is

Step-by-step explanation:

Find the domain and range of the function represented by the graph

Answers

Answer:

4(b) , 5(a)

Step-by-step explanation:

(4). (b)  Domain is {0, 1, 2, 3} and Range is { - 3, - 2, - 1, 0}

(5).  (a)  Domain is [ - 4, 2] and Range is [ - 4, 4]

or

domain: - 4 ≤ x ≤ 2 , range: - 4 ≤ y ≤ 4

Which statement is true? Select all that apply.

Answers

it’s b and c and i believe a

The true statements are:

1) The relationship is proportional

2) y = -3x is equation of the line.

3) The slope is negative.

What is a slope?

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction

A graph of the line is given.

If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,

then the equation of line is

y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)

And line passes through the points (4, -12) and (6, -18).

To find the slope;

m =  (y₂- y₁) / (x₂ - x₁)

m = -3

The slope is negative.

Then the equation of the line is,

y + 12 = -3(x -4)

y + 12 = -3x + 12

y = -3x

This equation shows the proportional relationship.

Therefore, all the required values are given above.

To learn more about the slope;

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Help! I’m a little confused

Answers

Its 9 because you subtract 5 and subtract 5 from the other side which gives you 3 then you have 1/3r left and 3 then you divide and r=9
The Awnser is 9 I’m not sure
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