Mathematics High School

Evaluate the expression for the given value(s) of the variable(s). 6.5 – n; n = 1.8​

Answers

Answer 1

Answer:

4.7

Step-by-step explanation:

Substitute value

6,5 - 1.8

=4.7

Related Questions

Question 15 of 45
If x = 3 and y= -2, then
22 – 2y
x2 + 2y

Answers

substitute x for 3 & y for -2

22 - 2(-2) = 26
3(2) + 2(-2) = 2

Answer:

3

Step-by-step explanation:

Given

[tex]\frac{x^2-xy}{x^2+2y}[/tex] ← substitute x = 3 and y = - 2

= [tex]\frac{3^2-3(-2)}{3^2+2(-2)}[/tex]

= [tex]\frac{9+6}{9-4}[/tex]

= [tex]\frac{15}{5}[/tex]

= 3

Find the distance between the points (-2,-10) and (-9,-5) on a coordinate plane.

Answers

-5/7
Just use the formula

Evan has a book to read that has 144 pages. If he has 12 days to finish the
book, how many pages must he read each day?

Answers

Answer:

12 pages a day

Step-by-step explanation:

144/12=12

Please help and dont just do a random answer for points

Answers

Answer:

125

Step-by-step explanation:

5*5*5 = 15*5 = 125

Answer:

125

Step-by-step explanation:

Times 5 three times by itself

A circle has a radius of 8 centimeters. The measure of the arc of the
shaded region is 72º. Which is closest to the area of the shaded section
of the circle?
1. 40.2 2. 160 3. 50.3 4. 10.1 ???

Answers

Answer: 10.1

Step-by-step explanation:

The solution shown for the equation is
incorrect. What is the correct solution? What is the error?
-3(6-r) = 9
- 18 - 3r = 9
- 3r = 27
9
The solution is
(Type the value of r.)



Pleaseeee help ASAP
Will mark brainliest

Answers

Answer:

-3(6-r) = 9

- 18 - 3r = 9   incorrect: should be -18 +3r = 9

- 3r = 27       incorrect: should be 3r = 27

9                   actually correct: r = 9

0.45 divided 36
how would I divide this?

Answers

Answer:

16.2 is your answer..

Step-by-step explanation:

36/0.45

=36*45/100

=1620/100

=162/10

=16.2

Hope it will helps you to understand

Use Photo Math it should help you step-by-step it no video or anything all you have to do is take a picture and it show you how it got it-

Which function equation is represented by the graph

Answers

Answer:

you need to put a picture

Step-by-step explanation:

:)

match the following trig ratios with the correct equation for the triangle shown below (picture attached)

Answers

Answer:

a

Step-by-step explanation:

Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis

Answers

The question is incomplete. The complete question is :

Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? Choose all answers that apply:

(Choice A) A 6x+3y6x+3y6, x, plus, 3, y

(Choice B) B 3(x+x+y)3(x+x+y)3, left parenthesis, x, plus, x, plus, y, right parenthesis

(Choice C) C 3xy3xy

Solution :

The equation is given as follows :

3x + 3(x+y)

We can simplify the equation in order to determine the equivalent expression.

Now applying the distributive property,

[tex]$3x+(3)(x)+(y)(3)$[/tex]

[tex]$=3x+3x+3y$[/tex]

When we add the like terms we get :

3x+3x+3y = 6x + 3y

When we factor out the term 3, we get :

3x + 3x + 3y = 3(x + x + y)

So, the expressions in options (B) and (C) are equivalent to the expression 3x + 3(x + y).

Answer:

Step-by-step explanation:

The question is incomplete. The complete question is :

Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? Choose all answers that apply:

(Choice A) A 6x+3y6x+3y6, x, plus, 3, y

(Choice B) B 3(x+x+y)3(x+x+y)3, left parenthesis, x, plus, x, plus, y, right parenthesis

(Choice C) C 3xy3xy

Solution :

The equation is given as follows :

3x + 3(x+y)

We can simplify the equation in order to determine the equivalent expression.

Now applying the distributive property,

When we add the like terms we get :

3x+3x+3y = 6x + 3y

When we factor out the term 3, we get :

3x + 3x + 3y = 3(x + x + y)

So, the expressions in options (B) and (C) are equivalent to the expression 3x + 3(x + y).

I just need to solve this: 5x^3=60x

Answers

If you are solving for the zeros it is -2sqr3, 0, 2sqr3

PLEASE HELP
Find the solution to the system of equations.

You can use the interactive graph below to find the solution.

x= ____
y= ____

Answers

x=6 y=-4


Step: Solve
−
3
x
−
9
y
=
18
for x:
−
3
x
−
9
y
=
18
−
3
x
−
9
y
+
9
y
=
18
+
9
y
(Add 9y to both sides)
−
3
x
=
9
y
+
18
−
3
x
−
3
=
9
y
+
18
−
3
(Divide both sides by -3)
x
=
−
3
y
−
6

Step: Substitute
−
3
y
−
6
for
x
in
4
x
+
3
y
=
12
:
4
x
+
3
y
=
12
4
(
−
3
y
−
6
)
+
3
y
=
12
−
9
y
−
24
=
12
(Simplify both sides of the equation)
−
9
y
−
24
+
24
=
12
+
24
(Add 24 to both sides)
−
9
y
=
36
−
9
y
−
9
=
36
−
9
(Divide both sides by -9)
y
=
−
4

Step: Substitute
−
4
for
y
in
x
=
−
3
y
−
6
:
x
=
−
3
y
−
6
x
=
(
−
3
)
(
−
4
)
−
6
x
=
6
(Simplify both sides of the equation)

Answer:
x
=
6
and
y
=
−
4

factor completely x^2+6x-27?

Answers

Answer:

(x+9)(x-3)

Step-by-step explanation:

Find the number that multiplies to make -27 and adds to make 6. In this case it is 9 and -3. Use these numbers to factorise.

Answer:

(x-3) (+9)

Step-by-step explanation:

To know what numbers to use, factor out the constant (-27).

You would get the numbers : 1,3,9,27.

Then figure out which numbers would make the 6x true. In this case, we would need the 3 and 9. They also need to add up to 6x, so the 3 needs to be negative.

-3 & 9

Then form the factors:

(x-3) (x+9)

--------------------------

You can also check this to make sure.

Have a nice day!

If the width of a pool is 60 feet and the perimeter is 200 feet, how long is the pool?
A. 140 feet
B. 120 feet
C. 40 feet
D. 50 feet

Answers

Answer:

140

Step-by-step explanation:

200-60 = 140

Answer:

c

Step-by-step explanation:

Substitute the values in the problem to get, (200) = 2(60) + 2W. Solve for W to get 200 = 120 + 2W. Subtract 120 on both sides to get 80 = 2W. Divide by 2 on both sides to get 40 = W or a width of 40 feet.

hope that helped you.

help i mark brain thing

Answers

Answer:

It is D

Step-by-step explanation:

Within each coordinate it represents (x,y)

The x moves along the horizontal line and the Y moves along the vertical line.

For example: For (-5,5) move to the left 5 times, then move up 5 times.

A negative X goes to the left and a negative Y goes down.

A positive X moves to the right and a positive Y moves up.

A student is evaluating the expression below for n=3.7.12.8+6(n-0.5) in what order should the student do the steps?

Answers

Answer:

32

Step-by-step explanation:

The given expression is :

12.8+6(n-0.5)

We need to evaluate the expression for n = 3.7

Put n = 3.7 in the above expression.

12.8+6(3.7-0.5)

= 12.8+6(3.2)

= 12.8 + 19.2

= 32

So, the value of the given expression is equal to 32.

The price of a microwave is $85. The sale tax is 7%. What is the total cost of the microwave?

Answers

Answer:

the answer will be 30...................

Answer:

$90.95

Hope this helps you! Also, here is a story to go along with my answer!

Once Upon A time there was a noble Knight, he wasn’t like any other Knight, he had powers, something much more than a sword and shield. He was part of a fairytail, which in this world is a association of wizards, or people who can use magic. As the noble night was walking around town, he noticed a figure far in the distance, of course he was a young, curious knight, so he decided to go explore the figure in the distance. As he walked upon the figure that wasn’t so far anymore he relized somethin, something so astonishing that he thought would never Be real, a castle full of treasures full of coins and gems. As he walked in to the castle, he wasnt aware f what would happen if he where to take the treasure, he made the best choice, not to satisfy his greed, and left the castle as it was when he found it before, promising himself not to tell anyone about what he witnessed that day.

Yours Truly, TheAnimeCatUwU

Tina has 3 quarters, 1 dime, and 6 nickels in her pocket.
Find the probability of randomly drawing a nickel?

Answers

Answer:

60%

Step-by-step explanation:

Tina has 3 quarters, 1 dime, and 6 nickels, or 10 coins in total.

They are asking for the probability of drawing a nickel (6 in total). Divide 6 from the total amount of coins:

6/10 = 0.60, or 60%

Tina has a 60% chance of drawing a nickel from her pocket.

~

Blake is paid $8.75 an hour. He worked 6 hours and spent of his
pay on a book. How much money did he have after he paid for the
book?

YOU WILL BE MARKED BRAINLY :))

Answers

Answer :

$52.50 - x

Step-by-step explanation:

8.75*6 = 52.5

Price of the book = x

$52.50 - x

Can some smart person help me out here!!!

Answers

Answer:

the answer is C I'm studying this right now

I NEED HELP PLEASE DONT SEND ME LINKS TO WEBSITES. ANSWER THE QUESTION HERE THANK YOU.

Answers

Answer:

33

Step-by-step explanation:

The two angles add up to 180 degrees because a straight line is 180 degrees

Add both equations and set equal to 180

3m + 138 + 7m +12 = 180

Algebra yeet

Simplify

10m +150 = 180

10m = 30

m = 3

Angle DBC is (7m + 12):

Substitute m = 3

7(3) + 12 = 21 + 12 = 33 degrees

$97 is what percent of $97?

Answers

Answer:  100%

97:97*100 =

(97*100):97 =

9700:97 = 100

Now we have: 97 is what percent of 97 = 100

Question: 97 is what percent of 97?

Percentage solution with steps:

Step 1: We make the assumption that 97 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$.

Step 3: From step 1, it follows that $100\%=97$.

Step 4: In the same vein, $x\%=97$.

Step 5: This gives us a pair of simple equations:

$100\%=97(1)$.

$x\%=97(2)$.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{97}{97}$

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{97}{97}$

$\Rightarrow x=100\%$

Therefore, $97$ is $100\%$ of $97$.

Answer:

100%

Step-by-step explanation:

what is the least common denominator 2 and 7?

Answers

Answer:

14

Step-by-step explanation:

14 7x2=14 please give Brain

find the product

(n+8)(m-2)

Answers

Answer:

nm - 2n + 8m - 16

Step-by-step explanation:

(n + 8) (m - 2)

nm - 2n + 8m - 16

Use foil method

Answer: nm - 2n + 8m - 16

PLS HELPPPP ME WITH THISSSS

Answers

Answer:

21000 cm

Step-by-step explanation:

A freight elevator is holding 15,893 pounds of merchandise stored in containers. Another container weighing 3,473 pounds is placed on the elevator. Then a container weighing 5,492 pounds is taken off the elevator. Let w represent the weight that the elevator is holding. Which equation could be used to solve for the the amount of weight the freight elevator is holding after the container is taken off of it?

Answers

Answer: [tex]W=13,874\ \text{Pounds}[/tex]

Step-by-step explanation:

Given

Elevator holds [tex]15,893\ \text{Pounds}[/tex] of merchandise

Now, 3473 Pounds of the box is loaded, and then 5492 Pound of the container is taken off

Net weight held by elevator is

[tex]\Rightarrow W=15,893+3473-5492\\\\\Rightarrow W=13,874\ \text{Pounds}[/tex]

In ΔNOP, the measure of ∠P=90°, the measure of ∠N=27°, and PN = 50 feet. Find the length of NO to the nearest tenth of a foot.

Answers

Answer:56.1

Step-by-step explanation:

Clicked see solution

the locus of points in a plane

Answers

We're talking about a set of points already in a plane, so consider the x-y plane, in which the equations y = 5 and y = -3 correspond to vertical lines. All the points equidistant from both lines would fall on the vertical line right in the middle of y = 5 and y = -3, which we can get by taking the average:

(5 + (-3)) / 2 = 2 / 2 = 1

So this locus is the single vertical line y = 1.

Answer:

y = 1.

Step-by-step explanation:

We're talking about a set of points already in a plane, so consider the x-y plane, in which the equations y = 5 and y = -3 correspond to vertical lines. All the points equidistant from both lines would fall on the vertical line right in the middle of y = 5 and y = -3, which we can get by taking the average:

(5 + (-3)) / 2 = 2 / 2 = 1

So this locus is the single vertical line y = 1.

in 37.2 the ones place and the tenths place is separ
ated by a what?​

Answers

Answer:

Decimal

Step-by-step explanation:

The 37 and the 2 is separated by that little dot called a decimal.

Answer:

37+2/10

Step-by-step explanation:

F(x)=-x^2+8x-2 what is the range of the function?

Answers

Answer:

Range:   ( − ∞ , 14 ]

Step-by-step explanation:

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