12x - 6y = 13
8x - 4y = -21

Answers

Answer 1

Answer:

24

Step-by-step explanation:

24


Related Questions

Plx help me! Brainlist!

Answers

Answer:

Its A. have a good day

Step-by-step explanation:

A square painting has a side length of 13 inches.

What is the area of the painting?

Answers

Answer:

169

Step-by-step explanation:

13*13=169

Answer:

169

Step-by-step explanation:

length x width = area

since it is a square, all sides are equal.

13 x 13 = 169

Help Please!!!!!!! Solving angle word problems with complementary and supplementary angles

I will give you brainliest and 20 points

Answers

Answer #1:

X= 75

Y= 15

Step-by-step explanation: The first equation is x+y=90 and then your next equation is x=5y. After you have those two equation you sub them in 5y+y=90 and once you solve for y you solve for x.

What property is being used in 6 x (3+8) = 6 x 3 + 6 x 8?

Answers

Answer:

The distributive property

Step-by-step explanation:

Find the area and perimeter pls!!!

Answers

P = a + b + c =4.81 + 8.8 + 8.42 = 22.03

Which number is in the solution set of this equation? 7x − 9 = 40

Answers

Answer: the answer is 7

Step-by-step explanation: add 9 to both sides, eliminating -9 so now you have 7x=49 divide both by 7 and you get x= 7 check it by inputing 7 for x, 7(7)-9=40

7(7)=49 next 49-9= 40

it checks out, so x= 7

Engineers are designing a rollercoaster that at one point goes underground. The rollercoaster’s path underground is a large curve. The engineers use the function shown to model the elevation, ܧ ,in feet and ݐ , time, in seconds, of the rollercoaster’s path while it is underground.

Answers

Answer:

One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

(x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3

Step-by-step explanation:

One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

(x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3

10. Find the slope of the line.

Answers

Answer:

-2/1

Step-by-step explanation:

Answer:

67

Because I just know

Last night, Mandy ate 2/8 of a pizza. Today for lunch, she ate 3/8 of the pizza. What fraction of the pizza is left over? PLEASE I NEED THE ANSWER NOW

Answers

Step-by-step explanation:

its 3/8 because she has eaten 2/8+3/8=5/8 and 8/8-5/8=3/8 is left

−6 7/8÷(−3 3/4)


Help me pls :{

Answers

67/66 or 1 1/66 would be the answer
11/6
---:
convert both into improper fractions
-55/8 and -15/4
turn both into a positive bc two negatives
then flip 15/4 to 4/15
simplify
11/2 * 1/3 =
11/6
hope this helps

A toy manufacturer is shipping its newest product, an interactive talking globe, to a major toy store. The packaging for the globe is a rectangular prism that measures 2512 2512 inches high, 18 inches long, and 18 inches wide. The boxes for the globes are packaged into shipping crates that hold 8 globes each. What is the minimum volume of one shipping crate? Explain your answer in the space provided.

Answers

Answer:

6 511 104 in³

Step-by-step explanation:

Since we have 1 crate and 8 boxes fit into one crate.

So, volume of one crate, V' = 8 × volume of 1 box, V

Since the box is a rectangular prism of sides 2512 inches high, 18 inches long, and 18 inches wide, its volume, V = lwh where l = length of prism, h = height of prism and w = width of prism.

So, V = lwh = 18 in × 18 in × 2512 in = 813 888 in³

So, V' = 8 × 813 888 in³ = 6 511 104 in³

So, the minimum volume of the crate is 6 511 104 in³

Find the volume of the cone. Round your answer to the nearest tenth.
13 ft
10 ft

Answers

Answer:

340

Step-by-step explanation:

340.33 and rounfing off whole number is 340

Find KJL (5x-2) (9x-62)

Answers

Answer:

45x^2-328x+124

Step-by-step explanation:

A test has 25 true/false questions. If 64% of the answers are true, how many of the test questions are true?

Answers

Answer:

16

Step-by-step explanation:

First, let's find 64% of 25. We do this and get:

[tex]\frac{64}{100}\cdot25=\frac{1600}{100}=16. \text{ so our answer is \boxed{16 \text{ problems are true}}}[/tex]

can someone please help me with this? I'll mark brainliest for the right answer

Answers

It’s D. When multiplying by -1, you’re changing the signs from addition to subtraction, both inverses of each other.
The answer is D nnnhhhhygggffftyhvjjj

solve for x
x^9=12^2x12^7

Answers

Answer:

12

Step-by-step explanation:

Hi!

Here is your answer,

I will explain in step by step,

[tex] {x}^{9} = {12}^{2} \times {12}^{7} [/tex]

Here we can simplify this further using this law,

[tex] {a}^{m} \times {a}^{n} = {a}^{m + n} [/tex]

So we will get,

[tex] {x}^{9} = {12}^{7 + 2} \\ {x}^{9} = {12}^{9} [/tex]

Since the powers are same we can cancel it out and we will get,

[tex]x = 12[/tex]

(Hope this answer helped :))

HURRY!! I need the answer. The assignment closes soon.

Answers

Answer: option 3

Step-by-step explanation:

option 2 is the answer.

pls help will mark brainliest if correct

Answers

Answer:

its D Please put me as brain eat if correct

which ordered pair represents the points at which line r and line s intersect?

A. (1.5 , 0.5)
B. (9.375 , 38.75)
C. (12.5 , 23.75)
D. (15, 27.5)

Answers

Answer:

C. (12.5 , 23.75)

Step-by-step explanation:


What does the discriminant determine?

Answers

It determines if the solution is equal, less than , or more than zero so if it’s equal you only have one solution but if it’s less than so it’s an imaginary graph that doesn’t have solution or more than means it has more than a solution

Por una tubería de 4.02 cm de diámetro circula agua a una velocidad de 1.9 m/s. En
una parte más estrecha el diámetro es de 3.61 cm. ¿Cuál es la velocidad que llevará el
agua en ese punto?Por una tubería de 4.02 cm de diámetro circula agua a una velocidad de 1.9 m/s. En
una parte más estrecha el diámetro es de 3.61 cm. ¿Cuál es la velocidad que llevará el
agua en ese punto?​

Answers

Answer:

7.91

Step-by-step explanation:

I just took the quiz and i got an A


[tex] \sqrt[4]{48x}^{4} [/tex]
Someone please help me this is so confusing, Please no links and do it step-by-step Thank you!!!

Answers

Answer:

48x

Step-by-step explanation:

[tex](\sqrt[4]{48x} )^{4}[/tex] = [tex]\sqrt[4]{(48x)^{4} }[/tex] = 48x

what is the intersection point of function f and g

Answers

Answer:3,15) and (-1.5, 1.5)

Step-by-step explanation:

If g(x) = 2x² - 3

evaluate the expression if g-=2, r=3, and t=. 3ab+c^2/a

Answers

Answer:

3ab+(c^2)/a

you can't really solve this because g and r is not in the equation.

Hegarty please help me

Answers

Answer:

wait let me try and see this carefully and then I will help you

Quadrilateral MNPQ is shown on the grid below.


What is the area, in square units, of the quadrilateral?

A) 182 square units

B) 4550 square units

C) 9100 square units

D) 91 square units

Answers

Answer:

42 square units

Step-by-step explanation:

Find the diagram attached

Area of the diagram = Area of the triangle + Area of rectangle

Area of rectangle = Length * Width

Area of rectangle = 3 * 6

Area of rectangle = 18 square units

Area of triangle = 1/2 * base * height

Get the base of the tringle using the pythagoras theorem;

b^2 = 10^2-6^2

b^2 = 100 - 36

b^2 = 64

b = 8units

height = 6 units

Area of the triangle = 1/2 * 8 * 6

Area of the triangle = 48/2

Area of the triangle  = 24 square units

Area of the figure = 18+24

Area of the figure = 42 square units

-6x+5y=1
6x+4y=-10
what is the answer to this problem by elimination

Answers

Answer:

x= -1 and y= -1

Step-by-step explanation:

Answer:

(-1,-1)

Step-by-step explanation:

-6x+5y=1

6x+4y=-10

Add the two equations together to eliminate x

-6x+5y=1

6x+4y=-10

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

9y     = -9

Divide by 9

9y/9 = -9/9

y= -1

Substitute back into one of the equations to find x

-6x+5y=1

-6x +5(-1) = 1

-6x -5 = 1

Add 5 to each side

-6x -5+5 = 1+5

-6x = 6

Divide by -6

-6x/-6 = 6/-6

x = -1

(-1,-1)

Which two operations are needed to write the expression that represent eight more than the product of a number and two

Answers

addition and multiplication
hope this is correct and helps

A footballer attempted 30 goals during a match and only makes 12. What fraction of the attempted goals did he make?

Answers

Answer:

2/5

Step-by-step explanation:

you have to reduce each number by 6

Answer: 12/30 or 2/5

find the 9th term of the geometric sequence 6,-24,96...

Answers

Answer:

A9 = 393216

Step-by-step explanation:

the first thing that will help you solve this question is finding the common ratio between each terms

the first thing that I like to do that usually helps is to take the second term (-24) and divide it by the first term (6) --> this will usually help you spot the common ratio fairly quickly

in your case, the common ratio is -4

- you can also check this by following my note above and then multiplying the second term by the common ratio to see if it matches the third term, which it does!

so now you can go about this two different ways

1. solve directly for the 9th term

2. use the nth term formula for geometric sequences

METHOD 1:

if you continue to multiply by -4 to solve for each term you would end up with:

6, -24, 96, -384, 1536, -6144, 24576, -98304, 393216

and you will recieve 393216 as your answer

METHOD 2:

the nth term formula is An = A1*r^(n-1)

where An = the nth term of the sequence

A1 = first term of the sequence (6)

and r = common ratio

using this formula, you would get:

A9 = 6(-4)^8

A9 = 393216

I hope this helped :)

 

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