Evaluate the expression below when x = 4 and y = 12.
5x2−3y

Answers

Answer 1

Answer:

Step-by-step explanation:

Put x = 4, y = -5 and z = 2 to the expression 3x² - 4y + xz and use PEMDAS:

3(4)² - 4(-5) + (4)(2)

= 3(16) + 20 + 8

= 48 + 20 + 8

= 76

Answer 2

Answer:

44

Step-by-step explanation:

Alright let’s do this!

Expression: 5x^2 - 3y and x = 4, y = 12

First let’s plug in the missing values of x and y!

5(4)^2 - 3(12)

Then, get rid of exponent! From this point forward follow PEMDAS

5(16) - 3(12)

80 - 36 =

44

And there you go! Hope I helped, Good Luck! :)


Related Questions

I'm half asleep and can't solve it I need help

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Could you please closen it up ? Hard to see!

The volume of a rectangular prism is 5058 cubic inches.
The dimensions are given below.
What is the missing value in the table?

Length Width Height
5 in. 214 in.
79in.
412in.
134in.
1018in.

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Answer:

412in

Step-by-step explanation:

Match the term with the formula needed to find it.
Geometry

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Answer:

The area is pie times radius^2

The diameter is 2 times radius

The circumference is 2 times pie times radius or pie times diameter

Step-by-step explanation:

Answer:

Diameter is C.

Circumference is A.

Area is B.

Step-by-step explanation:

There is no explanation these are just simple formulas

2. True help will be greatly appreciated, tricks or games will be reported; no links or websites or pdfs. Thanks!

Answers

Answer:

7. y=1/4x

8. 3 3/4

Hope this helps!

Step-by-step explanation:

The correct answer is D y=7/4x
The way you find out the answer is you start at the orgin (0,0) then count up to 14 and go 8 to the right and you will hit the line . Remember to find slope Rise over Run. Then slope would be 14/8 then
reduce to 7/4.

The next answer is A 3/20
Multiply the two fractions

Help me I was absent

Answers

Answer:

m = 55

Step-by-step explanation:

180° - 125° = 55°

I hope this will be helpful

how many edges AND faces does this shape have ? (NO LINKS)

Answers

The shape has five edges (if your including the point at the top) and five faces

Answer:

4 faces and im pretty sure 4 edges but it could be 3

Step-by-step explanation:

Hope this helps

Anyone?? Help PLEASE!! Will give brainliest!! The second image is the pictures and the first is the graph. HELP!!!

Answers

A. Yes, Figure A and Figure B are congruent
B. Not sure

Rachael has a summer job working at a library. The graph shows the relationship
between the number of hours Rachael worked and the amount of money, in dollars, that
Rachael earned. Select the equation that represents the amount of money, m, in dollars, that Rachael earned
by working h hours

Answers

Answer:D

Step-by-step explanation:

is 2/3(3/4x-3/2) equal to 1/2x -1

Answers

Answer:

Step-by-step explanation:

that would be the anwer

Answer: yes

Step-by-step explanation:

2/3(3/4x-3/2)

reduce the numbers and get

1/2x-1

dori lives 1/4 Mile from school if she walks to and from school each day how far does Dori walk during the school week

Answers

Answer:

7/2 miles or 3 2/4 miles

Step-by-step explanation:

PLS HELP 20 points and brainliest

How do you find dimensions of a cylinder with just the volume?

Answers

Answer:Since the volume of a cylinder formula involves the radius, you can solve for the radius and double it to find the diameter.

Write the formula. Volume=π⋅radius2⋅height.

Substitute the dimensions of the shape into the formula. Use 3.14 as the value for π. 791.28=3.14⋅r2⋅28.

Solve the equation for the variable.

Step-by-step explanation:

Answer: Since the volume of a cylinder formula involves the radius, you can solve for the radius and double it to find the diameter.

Write the formula. Volume=π⋅radius2⋅height.

Substitute the dimensions of the shape into the formula. Use 3.14 as the value for π. 791.28=3.14⋅r2⋅28.

Solve the equation for the variable.

Step-by-step explanation:

how many triangles can be made from 4 cm, 5 cm, 50º
how many can be made with 3 given angles

Answers

Answer:

Angle 1: 65°

Angle 2: 65°

Angle 3: 50°

Step-by-step explanation:

The sum of 3 angles in a triangle should always be 180°. If it is not 180° all together then it isn't a triangle. So I did 180-50=130 and 130÷2=65 so I chose 65°

7th grade math pls help me

Answers

Answer:

I think the answer might be true

Step-by-step explanation:

Supplementary angles add up to 180 degrees. When the angles are placed next to each other, they should add up to 180. Let's try it... 130+50 = 180. Therefore, these angles are supplementary.

Also, for extra help, 180-degree angles make a straight line, like this one. When you get stuck, you can always refer to websites such as Khan Academy for practice and explanations. (https://www.khanacademy.org)

Sorry for the wordy explanation, but I hope I helped :)

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!

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Answer:

nice question but I don't know the answer

No Links
What is 4 9/10 as a decimal?

Answers

I think 4.9 I think

Answer:

[tex] \huge \colorbox{yellow}{ \sf{4.9}}[/tex]

Step-by-step explanation:

see below how to convert this mixed number to a decimal:

devide numerator (9) by the denominator (10) :

[tex] \sf{9 \div 10 = 0.9}[/tex]

add this value to the integer part :

[tex] \sf{4 + 0.9 = 4.9 \: so..}[/tex]

[tex] \sf{4 \ \frac{9}{10}}{ \boxed{ = 4.9}}[/tex]

I REALLY NEEED HELP PLEASE IM :( IM GIVING 30 POINTS
Amy takes a job as a car salesman. She makes $700 per car she sells, and she earned a $100 bonus when she agreed to work for the car dealership. Write an equation that shows how much Amy will have earned (E) after selling 'c' cars. Use that equation to determine how many cars. Amy must sell in order to have earned a total of $14,800. That is the unlock number.

ILL GIVE U BRANLIEST

Answers

Answer:

E = 700c + 100 and 21 cars

Step-by-step explanation:

Let c be the number of cars that Amy sells. The initial salary that Amy gets is 100, no matter how many cars that Amy sells. However, she also makes 700 dollars for every car she sells, or c. Therefore, we have the equation:

E = 700c + 100

with E representing how much money Amy gets. We use this equation for part B. She must make 14800 dollars, which we substitute for E, because that is how much she makes. Therefore, we have:

14800 = 700c + 100.

We solve this equation and get c = 21, so Amy has to sell 21 cars.

Answer:

To earn a total of $14,800 Amy would need to sell 21 cars (Read explanation for equation)

Step-by-step explanation:

$700 per sale of 1 car

$100 Bonus (1 time)

c=Cars

E=Earned

Equation:    E=(700•c) +100

To find how many cars amy would need to sell to reach 14,800, Replace "E" With 14800

14800 = (700•c) +100

Step by step in photo

What is the surface area of the figure? Use 3.14 for π.

A.847.8 cm 2

B. 2,402.1 cm 2

C. 3,108.6 cm 2

D. 12,717 cm 2

Answers

the answer would be a

The radius of a circle is 3 feet.

What is the diameter?

Diameter = 2 * radius

Geometry

Answers

Answer:

6 feet

Step-by-step explanation:

3 x 2 = 6

Answer:

D. The diameter is 6 feet

Step-by-step explanation:

Steps:

1. Find the formula: 2*radius

2. Plug in the numbers: 2*3

3. Solve: 2*3 = 6 feet

Just 3 more after this

Answers

Yes I wish I knew how to do this just use Socratic
I think the answer is 125. I thinks it’s because they’re parallel.

Burger patties come packed 8 in a package, and burger buns come packed 12 in a package. We want to buy the least number of patties and buns possible, while still making sure that we have exactly one patty for each bun (no leftovers). How many packages of buns do we need to buy?

Answers

To find the answer you need to find the least common multiple of each number.

8, 16, 24
12, 24

They both have 24 in common and it’s the lowest multiple of both numbers. So in turn to have the same number of them you would need to get 3 packs of burger patties and two packs of burgers.

Hope this helps!! Have a great day ^w^

The least number of patties and buns possible is 4.

Given that, Burger patties come packed 8 in a package, and burger buns come packed 12 in a package.

What is the least common multiple?

The least common multiple is also known as LCM (or) the lowest common multiple in math. The least common multiple of two or more numbers is the smallest number among all common multiples of the given numbers.

The factors of 8 and 12 are given below:

8 = 2 × 2 × 2

12 = 2 × 2 × 3

LCM of 8 and 12 is 2 × 2 = 4

Therefore, the least number of patties and buns possible is 4.

To learn more about the least common multiple visit:

https://brainly.com/question/11533141.

#SPJ2

Solve this problem too

Answers

Answer:

1.120

Step-by-step explanation:

going from small to large milli is 10^-3 L

Answer: 120 is the answer

Step-by-step explanation:

Please help answer the question! I will mark you as brainlist

Answers

Answer:

c and d

Step-by-step explanation:

Answer:

its the second and last one

Step-by-step explanation:

yall know what im not posting anything else i was going to post a 400 point question but all yall doing is commenting for points

Answers

Answer:

SO is this a question????????????????/

Step-by-step explanation:

This is kinda confusing :/

Okay so I’m not commenting for points but same!! Whenever I needed answers to something urgently I put a lot of points but then someone ends up giving me a fake link and they just say hi. It sucks cause they took away points without helping.

If you spin each of the following spinners once, what is the probability of getting red and an even number?

Answers

red would be 1/4 and even number is 2/5

Find the volume of the solid.
plz help i have a test !

Answers

Volume = ( 4 × 3 × 6 ) + ( 3 × 3 × 5 )

Volume = 72 + 45

Volume = 117 mm^3

Volume: 72 + 45 = 117mm^3

Help!!!!!! again plz?

Answers

Answer: The answer is 9/30.

Step-by-step explanation:

The total of the number of DVDs is 30. The number of western DVDs is 9. This forms a proportion for probability which is 9/30.

f(1) = -16
{
f(n)=f(n-1)•(-1/2)

Answers

Answer:

-4

Step-by-step explanation:

Answer:

-4 :)

Step-by-step explanation:

What is surface area?
What is the equation for a trapezoid to find area?
How can we use what we know about other shapes if you don’t know the equation for a trapezoid?
What is the middle of the XY Coordinate axis called?
Which direction does the x-axis go?
Which direction does the y-axis go?
What do you know about the amount of points on the graph when making polygons on the XY graph?

Answers

Answer:

the sum of all the areas of all the shapes that cover the surface of the object

1/2 X (b1+b2) X h

2 pair of sides parallel only; if other two it becomes a parallelogram; if other two are same length _isosceles trapezoid(like isosceles triangle with two sides same length)

Step-by-step explanation:

NEED HELP FAST
NO LINK ANSWERS!!!

Which graph best represents the solution to the following pair of equations? (1 point)
y=-x-5
y=2x+4

Answers

Okay the side on the left side
i only see one answer choice but it’s not that one, your graph should look like this hope it helps :)

What is 4a+8b in simplified form?

Answers

It is already simplified! 4a+8b

The simplest form of (4a + 8b) / 12 is (a + 2b) / 3.

Given is an expression (4a + 8b) / 12, we need to simplify it in simpler form,

To simplify the expression (4a + 8b) / 12, you can divide both the numerator and the denominator by their greatest common divisor (GCD) to reduce the fraction to its simplest form.

First, let's find the GCD of 4 and 12. The factors of 4 are 1, 2, and 4, and the factors of 12 are 1, 2, 3, 4, 6, and 12.

The largest number that appears in both sets of factors is 4, so the GCD of 4 and 12 is 4.

Dividing both the numerator and the denominator by 4, we get:

(4a + 8b) / 12 = (4(a + 2b)) / (4 x 3)

Canceling out the common factor of 4:

(4(a + 2b)) / (4 x 3) = (a + 2b) / 3

Therefore, the simplest form of (4a + 8b) / 12 is (a + 2b) / 3.

Learn more about Expressions click;

https://brainly.com/question/28170201

#SPJ6

Complete question =

What is the simplest form of 4a+8b over 12

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