three times the sum of a number squared and 4​

Answers

Answer 1

Answer:

2

Step-by-step explanation:

3(N² + 4)

3N² = 12

3N² ÷ 3 = 12 ÷ 3

N² = 4

√N² = √4

N = 2


Related Questions

I’m the figure below, g II j. Find the values of z and x.

Answers

Answer:

84°+z°=180°[co exterior angles]

z°=180°-84°

z°=96°

84°=(3x+6)° [alternate exterior angles]

84 - 6=3x

78/3=x

26=x

what is the midpoint of 0.2 and 0.3

Answers

Answer:

0.25

Step-by-step explanation:

Half of a tenth in 5 hundredths.

To find the midpoint of 0.2 and 0.3, think of it as 20 and 30.

What would be the midpoint of 20 and 30? 25.

Therefore, 0.25 would be the midpoint of 0.2 and 0.3

-kiniwih426

What is the missing value?

Answers

Answer:

The second one is 33

The first one is 17

Step-by-step explanation:

For the first one your just adding three the second one your just adding 8

Kristie needs 2.5 yards of fabric for bridesmaid dresses.
If she purchased 28.5 yards of fabric, how many complete
dresses would she make?

Answers

So it’s

The yards of fabric / how much fabric is needed to make a dress
So
28.5/2.5
=11.4
So 11 complete dresses

Hello everyone, could someone help me with this problem

Answers

Which problem the whole page?
2. 42 is the rounded answer the real answer was 42.2
3. 15 real answer 15.5

Which lines are parallel to y = -4x + 7?

A y-1=4(x+8)
B y=-4x+15
C 16x+4y=9
D y=-4x

Answers

Answer:

The answer is C

Step-by-step explanation:

I don't know if I'm right. Hope it helps!

The sum of three times a number and seven is equal to the difference of the number and fifteen. Find the number. Round your answer to the nearest integer, if necessary.

Answers

Answer:

2

Step-by-step explanation:

Let the number be x

3x + 7=15-x

4x = 8

x=2

Allen's score in a video game was changed by -75 points because he missed some targets. He got -15 points fro each missed target. How many targets did he miss?

Answers

He missed 5 targets in total
He missed 5 targets 75 divided by 15

What is 45 to 155 in percent change

Answers

Answer: 204

Step-by-step explanation:

Answer:

29.03

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Find the rate of change shown in the table

Answers

Answer:

the rise over run

Step-by-step explanation:

three times the sum of the opposite of a number and -7

Answers

correct answer: -3x - 21

The statement three times the sum of the opposite of a number and -7

is 3( - n - 7).

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Three times the sum of the opposite of a number and -7.

Let the number be 'n' and its opposite number be '-n'.

This statement can be numerically represented as,

3( - n + (- 7)).

= 3( - n - 7).

= - 3n - 21.

learn more about numerical expressions here :

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slope of -4 and goes through (-5,1)

Answers

Y-1 = -4(x-(-5))
Y-1 = -4x-20
Y = -4x-19

please gelp me with this question

Answers

Answer:

25

Step-by-step explanation:

75 ÷ 3 = 25

25 = 25

help me plsssssssssssssssssssssssssssssssss

Answers

The answer is C

The best answer is C

rick used 3 1/8 cups of sugar to make cookies which fraction shows how many 1/8 cups of sugar used to make cookies​

Answers

Answer:

to make cookies you need 1/8 cups of sugar and you have 2 3/4 cups of sugar how many batches could you make?

to make cookies you need 1/8 cups of sugar and you have 2 3/4 cups of sugar how many batches could you make?

Step-by-step explanation:

When the exponent is 2 and the base is unknown and the answer is 0.64 What is the base?

Answers

the base is 0.8
0.8^2 would also be 0.8 x 0.8
which will equal 0.64

How many real solutions does the equation have? √3x-1 =2x-5

Answers

Answer: 2 soulutions

Step-by-step explanation: Just factor them and solve the answer would be x = 4 √3 + 8 in its exact form and x = 14.92820323... in its decimal form

h = -16t2 + 4t + 4
I don’t know how to approach this

Answers

Answer:

0.64 seconds

Step-by-step explanation:

Some extra unneeded information provided in this problem. Simply find t when h is equal to zero. (Factor out -4 if it makes it easier.)

0 = -16t^2 + 4t + 4

Solve using the quadratic equation:

t = ~0.64

Drag expressions to show the steps to create an equivalent expression using only positive exponents. Let g and h be two nonzero numbers. g^-3h

Answers

Equivalent expressions are expressions that have the same value.

The equivalent expression of [tex]g^{-3}h[/tex] is: [tex]\frac{h}{g^3}[/tex]

The expression is given as;

[tex]g^{-3}h[/tex]

Apply law of indices to change the exponents

[tex]g^{-3}h = \frac{1}{g^3}h[/tex]

Express as products

[tex]g^{-3}h = \frac{1}{g^3} \times h[/tex]

Rewrite as

[tex]g^{-3}h = \frac{h}{g^3}[/tex]

Hence, the equivalent expression is: [tex]\frac{h}{g^3}[/tex]

Read more about equivalent expressions at:

https://brainly.com/question/24242989

Sanjay and his paving crew laid 40 yards of new pavement. Jack and his crew just took over, and they can lay 15 yards of new pavement per hour. If Jack's crew works an 8-hour shift, how much pavement will have been laid in all?

Answers

Answer:

[tex]40 yds \: + 8hrs\times \frac{15yds}{hr } = \\ 40yds+ 120yds \: = 160yds[/tex]

Use the figure to find the measures of the numbered angles.​

Answers

Answer:

∠3 = 95°

∠4 = 85°

Step-by-step explanation:

Angle 3 and the angle that is already given are Corresponding angles meaning they will be equal.

Angle 3 and Angle 4 are Supplementary angles so their degrees add up to 180°.

Hope this helps!

solve the inequality. 1/3x + 6 ≥ -1​

Answers

Answer:

x_>_ -21

Step-by-step explanation:

that's the answer trust ........... n nnmmmm

Can someone help me do this

Answers

Answer:

71 degrees

Step-by-step explanation:

It is quite hard to see the question but I believe we are looking for the unknown angle E (correct me if I am wrong and I will revise my answer!)

round 523 to the nearest ten

Answers

Answer:

523 to the nearest ten is 520

Mike and Lilly are working together on a science project. They agreed to

meet halfway between their houses and ride their bikes to the library

together. Approximately how far will Mike and Lilly ride to the library once

they meet each other at the halfway point?

Answers

The approximate distance Mike and Lilly will have to travel between halfway point and Library is 7.8 miles.

From the graph :

Mike's coordinate = (-4, 2) Lilly's coordinate = (2, - 2) Library coordinate = (4, 6)

Meeting point = Halfway point :

(x1 + x2) /2 ; (y1 + y2) / 2

X - coordinate = (-4 + 2) / 2 = - 2/ 2 = - 1

Y - coordinate = (2 + (-2)) /2 = 0/2 = 0

Hence, meeting point = (-1, 0)

The distance between meeting point and library :

Distance = √[(x2 - x1)² + (y2 - y1)²]

Distance = √[(4 - (-1))² + (6 - 0)²]

Distance = √(25 + 36)

Distance = √61 = 7.8 miles

Therefore, the distance between halfway point and library ls approximately 7.8 miles

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Find the measure of each angle indicated

A) 21°
C) 23°
E) 25°
B) 80°
D) 20°

Answers

Answer:

D

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ ADE is an exterior angle of the triangle , then

80° + ? = 100° ( subtract 80° from both sides )

? = 20° → D

What is 0.14x57.05 and what are the steps

Answers

Answer:

7.987

Step-by-step explanation:

  1 4

×     5 7 0 5

+         7 0

+ 0 0 0 0 0  

+     9 8    

+   7 0      

=  7 9 8 7 0

Rewrite the product with 4 total decimal places.

Answer = 7.9870

Therefore:

0.14 × 57.05 = 7.9870

Graph the line that goes through the points (2,0) and (2,5).

The line is what
.
The line has what
slope.

Answers

Answer:

0

Step-by-step explanation:

5 - 0 = 5

2 - 2 = 0

5/0 = 0

Answer:

Step-by-step explanation:


Solve the simultaneous equations
5x - 4y = 19
x + 2y = 8

Answers

Answer:

x= 5 and y = 1.5

Step-by-step explanation:

5x -4y = 19

x + 2y = 8

let x = 8 - 2y...

5x - 4y = 19.......x = 8 -2y

5(8-2y) - 4y = 19

40 - 10y -4y= 19

40-14y = 19

-14y = 19-40

-14y = -21

y = 1.5

x = 8 - 2(1.5)

x = 8 - 3

x = 5

Thus, x is 5 and y is 1.5

Hope this helps!!!!

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Find the value of x and then find EF if E is the midpoint of line segment DF.

DE = 15 - 3x

EF = x + 3

Answers

Answer:

EF=6

Step-by-step explanation:

E is the midpoint, so DE = EF

DE = 15-3x

EF = x+ 3

Since DE = EF,

15 - 3x = x + 3

-4x = -12

x = 3

If x = 3,

DE = 15 - 3*3,   15 - 9 = 6

EF = x+ 3, so EF = 3 + 3 = 6

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