Mathematics High School

Solve the equation.

4n−18=5

Answers

Answer 1

Answer:

n = 5.75

Step-by-step explanation:

4(5.75) - 18 = 5

4(5.75) = 23

23 - 18 = 5

Therefore, n = 5.75.

Hope this helps:)

I would appreciate it if you gave me brainliest. Thanks.

Answer 2
The answer
Is 5.75
That’s because 18+5=23 and 23 divided by 4 equals 5.75 and to make sure. 5.75*4=23 23-18=5.

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need help on this geometry question ​

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Answer: the answer is sas

Step-by-step explanation: i hoped that helped!

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Answer: $45 + 4n + 3

Step-by-step explanation:

Please help! I have been stuck on this all day and its 1:00!!!!!! Please help!

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Answer:

820.05 i guess

Step-by-step explanation:

addeverything together

write the linear equation from the given information in slope intercept form passing through (-2,8) and perpendicular to y=2x+5​

Answers

Answer:

y  =  [tex]-\frac{1}{2}[/tex] x + 9

Step-by-step explanation:

Given parameters:

  Coordinates = (-2,8)

Equation of the line  y  = 2x + 5;

Unknown:

Linear equation of a line perpendicular = ?

Solution:

From the given expression, a line perpendicular will have a negative inverse of the slope given.

           y  = 2x + 5

Equation of a line  is y = mx + c;

y and x are the coordinates

  m is the slope

   c is the intercepts

    y  = 2x + 5 ;

 The slope is 2;

  A line perpendicular will have a slope of [tex]-\frac{1}{2}[/tex]  

 Since y = 8 and x  = -2, let us find c;

     8  = 2 x [tex]-\frac{1}{2}[/tex]  + c

    8 = -1 + c

     c  = 8+1 = 9

The equation of the line is;

       y  =  [tex]-\frac{1}{2}[/tex] x + 9

Can someone please help me on this ty!!

Answers

-1
3/4
1/2
Hope this helps

WILL MARK YOU BRAINLIEST!!!

Answers

Answer:

very confusing but i'm guessing the glide reflection on triangle DEF

Step-by-step explanation:

1/2 = 4+D/ xy 7*

what is the solution to the system of equations
2x-y=7
y=2x+3

a. (2,3)
b.(2,7)
c. no solution
d. infinite number of solutions​

Answers

Answer:

the answer is C. no solution

Step-by-step explanation:

2x-y=7

y=2x+3

2x-(2x+3)=7

no solution

Charlotte wants to solve the equation 6(2x+1) – 3 = 4x – 5. Which step would be an appropriate first step for Charlotte to take to solve for x? Subtract 1 from both sides to combine like terms Add 4x to both sides to isolate the variable Distribute the 6 to eliminate the parentheses Combine 4x and -5 to simplify the problem

Answers

Answer:

Distribute the 6 to eliminate the parentheses

find z and x

please help i’ll mark the first one or whoever right brainliest

Answers

Answer:

z=97 x=21

Step-by-step explanation:

so straight angles always equal 180°

And assuming that your lines are parallel, the angle under angle z should be 83° just like the angle above angle z

There for to solve for x, first subtract 83 from 180 because that's what that angle is equal to.

Now that you have the equation 4x+13 and you know that it's equal to 97 you can solve it just like a normal inequality.

4x+13=97

4x=84

x=21

which of the following is the same as cos15°

Answers

Answer:

cos15 is equivalent to sin(75)

Step-by-step explanation:

solving for cos15 degrees gives you ((√(3)+1)*√(2))/4 which is the same as the sin(75)

What is the solution for x in the equation? -2x + 14 + 10x = 34 A. X=6 B. X=2/5 C. X=1/8 D. X=5/2

Answers

Answer:

Step-by-step explanation:

x =(10-√-800)/2=5-10i√ 2 = 5.0000-14.1421i

x =(10+√-800)/2=5+10i√ 2 = 5.0000+14.1421i

the answer is 5/2

Step-by-step explanation: im just that good enjoy the free answer you cheating loser

Can someone please help me with this question?!!

Answers

Answer:

I believe your answer would be C, not sure tho.

Step-by-step explanation:

Hope It's Right!

what is the slope of the line? PLEASE HURRY

Answers

Answer:

Step-by-step explanation:

rise/run. up 3 and over 4. so your slope is 3/4

SLOPE HELP

hey, this just help if you're confused about slopes because I've seen a few questions about them I'll clear up a few things!
slope formula is y2-y1/x2-x1
memorize that and you'll be able to find your slope!
if you're given 2 points please label them (3,4) (0,6) labeling is this >>> (x1 3, y1, 4)
(x2 0, y2 6)
this makes it so it's organized and you know what you're subtracting
trust me I'll try to do it in my head and calculate it with a calculator then forget what points I used so WRITE IT DOWN! lol
if you hear parallel it's the same slope!
if you hear perpendicular it's the negative reciprocal example: 3/4x the perpendicular slope would be -4/3x
if you have a point and a slope and a line plugin the point to your line! let's say this one is parallel so the same slope
(3,4) y=3/4x + 2
4=3/4(3)+b
and solve for b!
anyways hopes this helps-
brainly don't take this down please LOL

Answers

Answer:

im in middle skool and i know this!

Step-by-step explanation:

which statement is always true about a right triangle

Answers

Answer:

a right angle is an angle of exactly 90° (degrees) .

Step-by-step explanation:

Answer:

it always has a right corner or in other words it has at least one right 90 degree angle

Step-by-step explanation:

Write the equation of a line that is parallel to y=3x + 7 and goes through (2,3)

Answers

Answer:

its y+-2+7

Step-by-step explanation:

Please help me because I only have until 10:07 and I have another page to do !

Answers

Answer:

y=2.5x+9

Step-by-step explanation:

pick any two points and plug 2.5 for x and add 9 to the sum

Alonzos gas tank is 1/4 full after he buys 9 gallons of gas it is 5/8 full how many gallons can alonzos tank hold

Answers

Answer:

24 Gallons

Step-by-step explanation:

We know his tank is 2/8 ths full. To get to 5/8ths we would have to add 3/8ths. If 3/8ths is equal to 9 then 1/8th would be equal to 3.

what two numbers multiply to -36 and add up to 5

Answers

Answer:

9 and -4

Step-by-step explanation:

Finding these 2 numbers can be found by guessing and checking. By doing this, it will get you the numbers 9 and -4.

First, test if they multiply to -36:

9(-4)

= -36

Then, check if they add up to 5:

9 + (-4)

= 5

So, 9 and -4 are the 2 numbers that multiply to -36 and add to 5

Nikki just graduated from high school and would like to buy a car. If she received $3000 in graduation gifts from family friends. She will put this money into a 18 month certificate of deposit until she finds the car of her dreams. The CD earned 10% annually and simple interest. How much will she put towards the down payment and 18 months 1.5 years?

Answers

Answer:

$3450

Step-by-step explanation:

Here, P = $3000, N = 1.5 years, R = 10%

[tex]SI = \frac{PNR}{100} \\ \\ SI = \frac{3000 \times 1.5 \times 10}{100} \\ \\ SI = 450 \\ \\ [/tex]

Amount of down payment

= $3000 + $450

= $3450

what is 30087665554 time 455344566544466544

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Answer:

1.370025503 ×10^27

Step-by-step explanation:

Im so depressed do Not jit me up Rn Ok soo My mom dead

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Answer:

Felt that

Step-by-step explanation:

Answer:

ee

Step-by-step explanation:

reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

The scale on a map is 2 cm = 25 miles . Dave measured the distance to the next town at 5cm. How many miles away is the next town?

Answers

Divide 25 by two and which is 12.5 then multiply that by 5 and you get you’re answer

I need help with my homework please, I don’t understand

Answers

Answer:

The answer is A

Step-by-step explanation:

-

1.f(x)=0,5x+3 represents a function, Evaluate the function if f(12), *
A. 9
B. 3.04
C. 18
D. 15.5

Answers

It’s 9. F(12)= 6 (0.5 x 12) + 3

Solve for X and Y please

Answers

The answers are X = 60
Y = 119

x=61

y=119

Step-by-step explanation:

180=60+59+x

180=119+x

-119 -119

x=61

18-61=119

Find the value of x.

Answers

Answer:

I'm not sure but I think that x= 53. All

Here I will explain you friend
So we know the exterior angle is 127
I am marking this triangle ABC
So 127+angle B=180( Linear pair)
So angle B = 180-127
Angle B =53
Also in this question it is AB = AC
So it is an isosceles triangle
So angle B = Angle X ( angles opposite to the equal side of the triangle are also equal)
So Answer is x =53
Hope it helps you!

3
The linear function is represented by the equation y=-3x - 2. What can be determined of this equation written in
slope-intercept form? Check all that apply.
3
The y-intercept is - 5
-
The y-intercept is 2.
The y-intercept is -2.
3
The slope is 3
The slope is 2.
The slope is -2.

Answers

Answer:

The y-intercept is –2.

The slope is Negative three-fifths

Step-by-step explanation:

I got it right on edge

What is 1+1? Plz help I’m bad at math

Answers

Answer: 2

Step-by-step explanation:

what is slope intercept form?​

Answers

Answer:

y=mx+b

anajsjsjsjsjsjsjjsmsm

Answer: slope intercept form is
y = mx + b

Hope this helps :)
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