Mathematics High School

​Twice a number is equal to negative four. Which equation could be used to find the number?

2n = 4

2n = -4n

2n - 4

2n = -4

​

Answers

Answer 1

Answer:

2n = -4

Step-by-step explanation:

This is because the N is unknown and in the way it's written it means 2 times something is -4

Related Questions

1634 divided by 12 round it to the nearst tenth

Answers

Answer:

136.2

Step-by-step explanation:

Answer:

136.2

Step-by-step explanation:

1634/12=136.1666666667=136.2

pls help it’s due tomorow, giving brainliest to the first answer with all three correct :)

Answers

Answer:

b im positive it B but if im wrong message me

Solve for u in terms of r, s, t, and v.
rs= –tvu​

Answers

Answer:

u = -rs/tv

Step-by-step explanation:

We are given that:

rs = -tvu

Finding the value of u;

We simply divide either side by: -tv

∴ (rs) ÷ (-tv) = (-tvu) ÷ (-tv)

u = (rs) ÷ (-tv) = [tex]-\frac{rs}{tv}[/tex]

MULTIPLE CHOICE QUESTION
How to Write and Solve Proportions
Kerry swam 2,400 yards in 20 minutes. How many minutes
will it take her to swim 3,000 yards
12
How will we find this scale factor?
3000x20/2400-2
1) Set up a word ratio.
2) Fill in the proportion
3) Find the scale factor.
yards 24004 30000
20 min
2400/3000-2
Х
3000/2400=?
x/20=2
20/=?

Answers

Answer:

i think it will be #3

Step-by-step explanation:

Gven that the expression p dollars for every q items describes a unit price. which statement must be true? ​

Answers

Answer:

p=q

Step-by-step explanation:

the second statement must be true.

Directions: Find each missing measure. please help me find T and U

Answers

Answer:

m∠U = 54°

m∠T = 72°

Step-by-step explanation:

The triangle shown is an isosceles triangle. Therefore, the 2 sides and angles that are marked must be congruent:

m∠S = m∠U

m∠S = 54°

m∠U = 54°

All angles in a triangle add up to 180°:

m∠S + m∠U + m∠T = 180°

54° + 54° + m∠T = 180°

108° + m∠T = 180°

m∠T = 72°

In a year, there are 4 months that have 30 days.

What is the ratio of the months with 30 days to the months with other than 30 days?




A. 2 to 1

B. 1 to 3

C. 1 to 2

D. 3 to 1

Answers

Answer:

D=3 to 1

Step-by-step explanation:

12/4=3/1

Answer:

D

Step-by-step explanation:

I got it wrong before by 1 to 3

but it is 3 to 1 :(

Please help and thank you!

Answers


the answer is 13 :))
I believe the answer is 13

I need help on this answer please​

Answers

Answer:

i cant see it

Step-by-step explanation:

Answer:

Just solve the equation in the question get the total and solve all the other equations they give you and see which one has the same total as the equation in the question.

Step-by-step explanation:

Sorry for not giving you a solid answer but I don't know what the other equations are to give you the answer. :)

Hope this helps tho! owo

calcule o perímetro de uma circunferência de raio igual a 15 cm​

Answers

Resposta:

94,24 cm

Explicação passo-a-passo:

Vamos por partes.

Primeiro descobrimos o diâmetro que é igual a 2 vezes o raio:

D = 2 x raio

D = 30cm

Agora a fórmula da circunferência C = π x D

C = 3,1416 x 30

C = 94,24 cm

espero que esto ayude!

que tengas un gran día!

tener un maravilloso fin de semana!

tener un maravilloso fin de semana! :) :D :3

Select the correct answer.
Date Daily Balance
2-20-2013 -$61.52
2-25-2013 $912.52
2-28-2013 $225.78
3-05-2013 -$228.82
3-06-2013 -$168.55
3-08-2013 $27.58
The table shows the balance in Mr. Wallace's bank account on different dates. On which date was the account balance the lowest?

A.
2-20-2013
B.
2-25-2013
C.
3-05-2013
D.
3-08-2013

Answers

Answer:

Ç

Step-by-step explanation:

The bank account is lowest on 3-05-2013

Good day mate!  

Answer:

The answer is C and if not C then maybe B

Step-by-step explanation:

Hope this helped have a good day!!! :) :)

find the mean of the given data 8,7,5,9,6,13​

Answers

here is the answer :))))

The mean of the data is 8.

Mean :

Given data are,

                    [tex]8,7,5,9,6,13[/tex]

Mean is computed as divide the sum of all data by total number of data.

Sum of all the data[tex]=8+7+5+9+6+13=48[/tex]

Number of data[tex]=6[/tex]

             [tex]Mean=\frac{48}{6}=8[/tex]

Learn more about the mean here:

https://brainly.com/question/19243813

A taxi charges an additional fee of 1.50 plus 2.00

Answers

Answer:

3.50

Step-by-step explanation:

Assuming you wanted to add 1.50 plus 2.00

This can be done by writing down 1.50 on top of 2.00.

An easier route would be by looking at the "1" in 1.50 and the "2" in 2.00. These are the superior numbers in 1.50 and 2.00.

1+2 is obviously 3. We would add 1/2 to that because 0.50=1/2. Therefore the answer is 3.50

The answer you are looking for is 3.50

Use a proportion to find the number of meters in 9 feet. Round to the nearest tenth.

Answers

Answer: There are to 2.7m In 9ft.

Can anyone help?
A) $6.00
B) $5.00
C) $7.70
D) $6.50

Answers

I’m pretty sure it could be 6.50

Given that B, D and F are midpoints, find the length of segment DA.

Answers

Answer:

The length of segment DA is 15 units

Step-by-step explanation:

The segment which joining a vertex of  a triangle and the midpoint of the opposite side to this vertex is called a median The point of intersection of the median of a triangle divides each median into two parts the ratio between them is 1: 2 from the base, which means the length of the median is 3 times the part from the base  

Let us use this rule to solve the question

In Δ AEC

∵ D is the midpoint of EC

∴ AD is a median

∵ B is the midpoint of AC

∴ EB is a median

∵ F is the midpoint of AE

∴ CF is a median

→ The three medians intersected at a point inside the triangle,

   let us called it M

∵ AD ∩ EB ∩ CF at M

∴ M is the point of intersection of the medians of Δ AEC

→ By using the rule above

∴ AD = 3 MD

∵ MD = 5

∴ AD = 3(5)

∴ AD = 15 units

Answer:

the answer is 15!! i jus took the test!!!!!!

Step-by-step explanation:

A parking meter at a parking garage charges $4 per hour. Every fraction of an hour is rounded up to the next hour. What is the cost for parking a car in the parking garage for 312 hours

Answers

Answer:

$1,248.00, or 1,248 dollars.

Step-by-step explanation:

First, multiply 4, which is the dollars per hour, by 2, which is 8. Then, multiply four with ten, which is 40. Next, multiply 4 with 3, which is 12, and add two zeros on the back, which is 1,200. Finally, add them all together for a total of $1,248.00, or 1,248 dollars.

Five times a number minus eight is the same as ten more than three times a number. Find the number.

Answers

Answer:

25

Step-by-step explanation:

5(n-8)=3n+10

5n-40=3n+10

5n=3n+50

2n=50

n=25

Srurface area 1m 2m 1m

Answers

Answer:4

Step-by-step explanation: 1x2x1x2

Answer: it would be 2

Step-by-step explanation:

Which was Ismail known for?

Answers

Answer:

The third one

Step-by-step explanation:

The length of a rectangle is 3 1/3 inches. The width is 1/5 of the length. Find the width
and the perimeter of the rectangle. Support your answer with a drawing.

Answers

Answer:

Question states;



.

w = 2/3in

.

Perimeter = 2*l + 2*w

 

.

 

P = 24/3in 

P = 8in 

Six friends visited a museum to
see the new holograms exhibit.
The group paid for admission to
the museum and $12 for parking.
The total cost of the visit can be
represented by the expression
$6x + $12. What was the cost of
the visit for ONE person?

Answers

Answer:

3$

Step-by-step explanation:

Answer:

x+2

Step-by-step explanation:

What is the temperature displayed on the thermometer?

Answers

Your Answer :

98.6°F (37°C).

Step - By - Step Explanation :

Your normal body temperature should be around 98.6°F (37°C). If you have a temperature that is over than 100.4°F (37.2°C), then you should see your doctor preferably soon.

Note :

I am sorry if this is the wrong answer to your question. Your query did not have an image to display the temperature on the thermometer nor did your query have any further context for us to examine.

Good luck on your homework and have a great day.

Feel free to comment on my answer if you have any further questions.

Answer:

25

Step-by-step explanation:

It's Correct On Edge As Well :P

-2/5x=-5 What is this?

Answers

Answer:

25/2 or 12 1/2 or 12.5

Step-by-step explanation:

Solve the quadratic
9x2 + 25 = 0

Answers

Answer:

9x^2=-25

X^2=-25/9

X^2=-2. 77

X= root - 2.77

=-1. 664

Hope this helps you Stay happy and safe Do mark as brainliest ✌️

-1.6 will be the answer for dis equation

= 2.85 101+5 5
= 2.85 x 106
hie
What is the answer

Answers

Answer:

could you simplify this

Step-by-step explanation:

State the horizontal asymptote of the rational function.
f(x) = x^2 + 9x-9/x-9

Answers

Answer:

no horizontal asymptote

What is the equation of this line? ​

Answers

The answer would be y=-1/4x


Which expression is the factorization of x2 + 10x + 21?
O(x + 3)(x + 7)
(x + 4)(x + 6)
○ (x + 6)(x + 15)
O (x + 7)(x + 14)

Answers

(x+3) (x+7)

Answer:

Hope this helps you and that you will get it correct

Step-by-step explanation:

u

Answer:

a is your answer ladies and gentlemen!!!

Step-by-step explanation:

jake drove 320km in the same time that jenna drove 360 km. if jenna drove on average 10km/h faster than jake, calculate her average speed. solve using a rational eqation.

Answers

Answer:

Jenna’s average speed is 90 km/h

Step-by-step explanation:

Here, we want to calculate Jenna’s average speed

Mathematically;

time = distance/speed

Let Jenna’s speed be x km/h

It means that Jake’s will be (x-10) km/h since Jenna’s speed is 10 km/h faster

Time taken for Jake is 320/(x-10)

Time taken for Jenna is 360/x

Since the time is equal;

Then;

320/(x-10) = 360/x

320(x) = 360(x-10)

320x = 360x - 3600

360x-320x = 3600

40x = 3600

x = 3600/40

x = 90 km/hour

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