Mathematics High School

Evaluate the given algebraic expression for x = 2 and y= 3.
-Зху
-6
-12
-18
-24

Answers

Answer 1

Answer:

-18

Step-by-step explanation:

-3xy,X=2 ,y=3

-3(2)(3)

-3(6)

=-18

Related Questions

Audrey bought a refrigerator for $266 that was originally priced at $665. What percentage is the discount?

Answers

Answer:

40.6%

Step-by-step explanation:

discount percentage:

x/y*100

266/655 *100 which is 40.6%

Hope this helps plz hit the crown :D

Which of the following statements is true? *
On a number line, -|55| an |-55| are the same point.
On a number line, -|55| is farther from 0 than |-55| is.
On a number line, -|55| an |-55| are the same distance from 0.

Answers

Its the last option they both are as far from 0 on the number line
Hope this helps and good luck on ur guyss exams :)

find da slope!!!!! help!!!!!!!!!!

Answers

Answer:

This is graph right

Step-by-step explanation:

is this maths or economics

tell weather each equation has one solution , zero solution or infinte solutions really easy : )

Answers

Answer:

several different solutions,

What is the equation of the line that has a slope of 1/2 and contains the points 0,3?show work please

Answers

Answer:

Step-by-step explanation:

y - 3 = 1/2(x - 0)

y - 3 = 1/2x - 0

y = 1/2x + 3

A boat leaves a pier and travels 15 miles due east, then turns and travels 15 miles in the direction N 20 E. Which diagram represents the boats current distance x from the pier?

Answers

Answer:

I chose B

Step-by-step explanation:

Because it goes north and east, and i got an 84

Answer:

The answer is A

Step-by-step explanation:

because the green arrow represents the 15 miles East, then the blue arrow is 20degrees east of a line straight up and down, so its N 20 E

Step-by-step explanation:

please help asap pre alg

Answers

Answer:

the answer is c there bud

Answer:

d

Step-by-step explanation:

a^2 + b^2 = c^2

5^2  + 3^2 = c^2

25 + 9 = c^2

34 = c^2

√34 = √c^2

√34 = c

√34 = x

Keith owes $4512 on a credit card with a 17.3% interest rate compounded monthly. What is the monthly payment he should make an order to pay off his debt in 12 months assuming it is not charge anymore purchases with a card?
A) $915.50
B) $74.54
C) $376
D) $412.16

Answers

If keith makes a monthly payment of (c) $376 in 12 months he should be debt free (simply multiply 376 by 12 to find your answer)

Use the substitution method to solve the system of equations. Choose the correct ordered pair. x+y=12 and -x=-y-10
A (9, 3)
B (10, 2)
C (11, 1)
D (8, 4)

Answers

The answer is C. (11, 1) i gotchu :)

Could anyone help me with 4 questions about inequalities?
I will give points and brainiest.

Answers

Answer:

Put a shaded dot in 9 and an arrow pointing left

Step-by-step explanation:

Katie can buy 2 lb of apples for $7. What is the unit rate for the apples?

Answers

Answer:

$3.50 per lb of apples

Step-by-step explanation:

7/2 = 3.5

3.5 per appleeeeeeeee have a good day

Which set of line segments can be used to construct a triangle?
A) 6cm, 3cm, and 2cm
B) 7cm, 4cm, and 1cm
C) 8cm, 3cm, and 6cm
D) 9cm, 2cm, and 6cm

Answers

C

In order to make a triangle the sum of the two smaller measurements have to be more then then the longest side of the triangle
Therefore the only answer that works is C because 6+3=9 and 9>8n

PLEASE HELP IM BEING TIMED
When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?

Answers

Answer:

35x-35y+21

Step-by-step explanation:

.5(20x-50y+36)-.25(-100x+40y-12)

10x-25y+18+25x-10y+3

35x-25y+18-10y+3

35x-35y+18+3

35x-35y+21

35x-35y+21

Step-by-step explanation:

Need help ASAP!! Will mark brainliest

Answers

Answer:

The answer is D-16

Step-by-step explanation:

Since we have x on one side, and 49 degrees on the other, both angles are the same, so we subtract 1 from 49 to get 48, so that 3x has to equal 48. So we just divide 48 by 3 to get 16, so x = 16.

The variables x and y very directly. Use the values to find the constant of proportionality K then write equation that relates to x and y. Write any fraction in simplest form. Y equals 20 and X equals 12

Answers

Answer:

k=5/3

Step-by-step explanation:

The variables x and y vary directly. Given that, y = 20 and x = 12

We can write it as :

y=kx

Where k is constant of proportionality

Put the values of x and y

20=12k

k = 20/12

k = 5/3

So, the value of the constant of proportionality is 5/3.

is (1,3) a solution of the graphed inequality, y=5/2x-3?

Answers

Answer:

Yes

Step-by-step Explanation:

The image below shows proof that the point (1,3) is part of the inequality y>5/2x-3

Hope this helps! :)

Darnell buys homes and flips them

Answers

? Do you need help with an assignment?

Find the area.
A.80 in sq
B.140 in sq
C.70 in sq
D.35 in sq

Answers

Answer:

C. 70 in sq

Step-by-step explanation:

The formula of a trapezoid is the A = a + b / 2 multiplied by height. (a and b are the bases). If you plug in the numbers into the formula, you will get 70.

Identify the domain of the function.

Answers

Answer:

Step-by-step explanation:

domain represents the numbers at the x endpoints of a graph.

on the graph we see that on the left, the line ends when x is -4

on the right, the line ends when x is 4

the domain is

-4, 4

but notice how on the left there is an open circle

this will be written with a parentheses

( -4, 4

and notice how on the right there is a closed circle

this will be written with a bracket

(-4, 4]

so the answer is C

i’m pretty sure The answer is C

Determine if (1, 3) is a solution to the given system of linear equations. 5x+y=8 x+2y=5 (1 point)

No, because substituting the given ordered pair yields two true expressions.

No, because substituting the given ordered pair doesn't yields two true expressions.

Yes, because substituting the given ordered pair doesn't yield two true expressions.

Yes, because substituting the given ordered pair yields two true expressions.

Answers

5x+y=8 equation 1

x+2y=5 equation 2

Subsitute (1,3) in bothe equations if the right side is equal to.the left side of the equation then (1,3) is a solution

5(1)+3=8

1+2(3)=7

7 isn't equal to 5 so 1,3 is NOT a solution for this system of equations

Answer:

No, because substituting the given ordered pair doesn't yield two true expressions

Step-by-step explanation:

:)

What is
y
+
3
=
7
(
x
−
2
)
y+3=7(x−2)y, plus, 3, equals, 7, left parenthesis, x, minus, 2, right parenthesis written in standard form?
Choose 1 answer:

Answers

The standard form of the given expression is 7x - y = 17

Equation of a line in standard form

The equation of line in standard form is expressed as Ax + By = C

Given the equation

y + 3 = 7(x - 2)

Expand

y + 3 = 7x - 14

y -7x = -14 - 3

-7x + y = - 17

7x - y = 17

Hence the standard form of the given expression is 7x - y = 17

Learn more on standard form  of equation here: https://brainly.com/question/187506

#SPJ1

Which ordered pair represents a reflection of the point (-3,5) across the y-axis?

Answers

Answer:

-5,6

Step-by-step explanation:

YO MOM ZZZZZZZZZZZZZZZZP

PLEASE HELP I WILL MARK BRAINLIEST

Answers

Answer:

a: y= -5x

b: y= 2x +3

c: y= -3

d: undefined or x=6

6n + 9 = -3n-21-6 for n
Please help I am very confused

Answers

Answer:

n=-4

Step-by-step explanation:

[tex]6n+9=-3n-21-6\\6n+9=-3n-27\\9n=-36\\n=-4\\[/tex]

Hope this helps plz hit the crown :D

I NEED HELP!! WILL GIVE BRAINLIEST
40 POINTS
1. For safety, a ladder should make a 75 degree angle with the ground, as shown here. Use a trigonometric ratio to determine how far up the wall a 16-foot ladder will reach. (Find x.) Round to four decimal places. (PICTURE IS INSERTED)

A. 4.1411 ft
B. 15.3802 ft
C. 15.4548 ft
D. 59.7128 ft

2. Use Pythagorean Theorem to find the length of segment AC (the distance the base of the ladder will be from the base of the house). Round to two decimal places.

A. 4.14 ft
B. 4.42 ft
C. 15. 45 ft
D. 73.27 ft

Answers

Answer:

I think it's A and C

Step-by-step explanation:

I could be wrong though

Answer:

c

Step-by-step explanation:

if not sorry

Mr. Wilson wants a new version of Animal Crossing for Christmas. Mrs. Tilson-Wilson finds it for $64.50. If she waits until Cyber Monday, the game will be on sale for 20% off. How much will she pay for the game if she waits?

HURRRY PLSSSSSSSS

Answers

The answer is $51.60

I can’t understand what the question is asking me pls help

Answers

Answer: 3/4

Step-by-step explanation:

28 members in all - 12 boys = 16 girls

12/16 = 3/4

A javelin thrower knows that the angle from the ground their javelin sits when landing is 140° What is the second angle formed with the javelin and the ground? Assume the ground is a straight line. Show all work in solving for the angle measure.​

Answers

Answer:

40°

Step-by-step explanation:

the ground is a straight line, which is 180°

its just 180°-140°=40°

In order to join gymnastics after school, there is $75 on-time fee and $30 monthly fee. Which slope-intercept from equation models this situation
A. Y=30x + 20
B. Y=75x + 30
C. Y=30x + 75
D. Y= 30x

Answers

c. Y=. 75x. + 30

Is the correct answer

Someone plssss help me I’m in the middle of a test and imma fail this class if I don’t get an a or b

Answers

Answer:

It's A. 4 units

Step-by-step explanation:

Literally, you just have to count the number of units (those gaps) between W and Z

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