Evaluate 3xy - y2 when x = -2 and y = 4
which one?
-30
-8
-40
-20

Answers

Answer 1

Answer:

-32 is what i got

Step-by-step explanation:


Related Questions

Find the distance between the points (8,0) and (3,4) the answer must be a whole number

Answers

Answer:

let (8,0) be (x1,y1)

(3,4) be (x2,y2)

Distance

= √[(x2-x1)² + (y2-y1)²

√[(3-8)²+(4-0)²

√(25+16)

√41

Solve 3(x + 6) - 2(x - 2) ≥ 10

Answers

Answer: x ≥ -12

Step-by-step explanation:

Step 1: Simplify both sides

x+22 ≥ 10

Step 2: Subtract 22 from both sides

x + 22 −22 ≥ 10 −22

Your answer should be

x ≥ −12

Answer:

[tex]x \geqslant - 12[/tex]

Step-by-step explanation:

Please see the attached picture for full solution.

A group of adults were asked to name their favourite juice. The table gives information about their answers. Work out the angles that would be used to draw a pie chart.

FRUIT JUCE || ORANGE || APPLE || GRAPE || OTHER||

NUMBER || 40 || 27 || 15 || 8 ||

ANGLE || ? || ? || ? || ? ||

Answers

Answer:

ORANGE: 160

APPLE: 108°

GRAPE: 60

OTHER: 32

Step-by-step explanation:

THE SUM OF 40, 27, 15 AND 8 IS 90

90 GOES INTO 360 (THE ANGLES OF A CIRCLE) EXACTLY FOUR TIMES

TO GET EACH ANGLE OF THE PIE CHART YOU SIMPLY NEED TO TIMES EACH NUMBER BY FOUR!

A rectangular vegetable patch has a perimeter of 36 meters and an area of 80 square meters. What are the dimensions of the vegetable patch?

Answers

Answer: 5 and 4

Step-by-step explanation:

Perimeter = 2 ( L + W)

18 = 2(L + W) divide through by 2

9 = L + W

9 - L = W

Area = L * W

20 = L (9 - L)

20 = 9L - L^2

L^2 - 9L + 20 = 0 factor

(L - 5) (L - 4) = 0

Set both factors to 0 and solve for L

L = 5 and L = 4

Given m||n, find the value of x.
(9x-5)(6x+20)

Answers

Answer:

5/9 & -10/3

Step-by-step explanation:

Set each to 0 and solve:

9x-5 = 0

9x=5

x=5/9

6x+20=0

6x=-20

x=-20/6

x= -10/3   or -3 1/3

In the figure, since the line m and line n are parallel, the value of x is 25/3.

We have,

From the figure,

The two angles are corresponding angles since line m and line n are parallel.

Now,

9x - 5 = 6x + 20

Combine like terms on one side.

9x - 6x = 20 + 5

3x = 25

Divide 5 on both sides.

3x/3 = 25/3

x = 25/3

Thus,

The value of x in the given figure is 25/3.

Learn more about corresponding angles here:

https://brainly.com/question/1597341

#SPJ6

I don’t understand this

Answers

Answer: a=x represents sinks

b=the amount of money he will spend overall on the sink and sealent

c= 100x represents 100 sinks

d=joe will have to charge 85 dollars per sink

Step-by-step explanation:

Jane has bought 10 pounds of dog food. She feeds her dog 2/5 pounds for each meal. For how many meals will the food last? Write your answer in simplest form.

Answers

Answer:

25 meals

Step-by-step explanation:

All you have to do is divide 10 ÷ 2/5 and you'll get 25 :)

Find the distance between the points (0,2)and (-5,-9)The answer must be a whole number or a fully simplified radical expression do not round up

Answers

Answer:

The answer is

[tex]\sqrt{146} \: \: \: units[/tex]

Step-by-step explanation:

The distance between two points can be found by using the formula

[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\ [/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(0,2)and (-5,-9)

The distance is

[tex]d = \sqrt{( {0 + 5})^{2} + ({2 + 9})^{2} } \\ = \sqrt{ {5}^{2} + {11}^{2} } \\ = \sqrt{25 + 121} \\ = \sqrt{146} [/tex]

We have the final answer as

[tex] \sqrt{146} \: \: \: units[/tex]

Hope this helps you

Answer:

ok. i have solved. u can have a look .

Mr. Bins sold 1/2 of his farm to Mr. Frost and 100 acres to Mr. Slate. He now has 1/5 of his original farm land. How big was his farm originally? How much land does he have now?

Answers

I don’t really know, but here’s my guess, the farm was 500 acres big, and now he has 150 land.

1. Which of the following is an equation for the
inverse of the function f(x)
3x + 1 ?

Answers

Answer:

f^-1(x)=x/3-1/3

Step-by-step explanation:

What is the solution set for −4x+10≥5x+55?

Answers

Answer:

Step-by-step explanation:

-4x + 10 ≥ 5x + 55

-9x + 10 ≥ 55

-9x ≥ 45

x ≤ -5

Which of the following is a trinomial?

Answers

It’s answer D.
A trinomial is a polynomial with 3 term, and D is the only one with 3 terms :)

Answer:

D

Step-by-step explanation:

the answer d has 3 values which gives you a hint on the word TRInomial. Because "tri" means 3.

What number should be placed in the box to help complete the division calculation. Pls help

Answers

Answer:

I believe it would be 4

2. Lenny is making pasta for dinner. The recipe calls for 3 cups of sauce to serve 15
people. If Lenny serves 60 people, how many cups of sauce does he need?

Answers

3 cups= 15 people
60/15= 4
4*3=12

Lenny needs 12 cups of sauce

Anyone? Know how to do this

Answers

Answer:1=£34.2

2=£66.6

3=£9.18

4=£13,158

Step-by-step explanation:

We are decreasing the prices by 10%

1.£38

£38 = 100%

? =90%

90×38÷100=£34.2

2.£74

£74=100%

? = 90%

90×74÷100=£66.6

We are increasing the the salaries by 2%

1.£9

£9=100%

? =102

102×9÷100=£9.18

2.£12900

£12900=100%

? =102%

102×12900÷100=£13,158

Which is greater -8 or 3

Answers

3 is a greater value than -8

Answer:

three is greater than -8

What is the value of n in the equation

Answers

u didn’t include any equation

The area of a rectangle is 24,396 square centimeters. If the width is 38 centimeters, what is the length?

Answers

Answer:

642

Step-by-step explanation:

area equals LxW

divide 24396/38

answer 642

642x38= 24396

Find the distance between the two points rounding to the nearest tenth (if necessary).
(-3,3) and (-1,5)

Answers

Answer: 2.83

Step-by-step explanation:

Use the distance formula

PLEASE HELP!

Function Notation
Evaluate the following expressions give the functions below:
F(x)=4x+5 H(x)= x+ 2
g(x)=3x^2-4

1.f(5)=

2.h(-8)=

3.g(2)=

4.f(-4)=

5.h(13)=

6.g(3)=

7.f(6)=

8.h(-9)

Answers

Answer:

sorry we can't read such type of this exercise

Please help !!!!!!Asap!!

Answers

Answer: x=7, EF=12, FG=15

Step by Step:
(4x-16) + (3x-6) = 7x-22
7x-22=27
7x=27+22
7x=49
x=7

4(7)-16= 12
3(7)-6=15

How do you solve this problem? 7/10 x 1 1/3

Answers

Answer:

77/30

Step-by-step explanation:

7/10 x 11/3 = 7x11 = 77 and 10x3 = 30

the answer is 77/30

The answer is 2.56666667. All u have to do is multiply 7/10 by 11/3.

Sal, John and Desmond have formed a partnership. The total investment was $750,000.
Sal owns 40% and John owns 25% of the partnership. How much did Desmond invest?

Answers

Desmond invest 35 %

Jason paid $9 for 20 erasers. If the price of each
eraser was decreased by $0.15, how many
erasers could he have bought for the same
amount of money at the new price?
erasers

Answers

the answer would be 45 cents per each eraser

Please help! I dont understand this, I will give 15 points!

Answers

Answer:

Step-by-step explanation:

common denominator is the multiplication of the two denominator or the least common multiple of the two

                    common denominator 24              10                 12

13/24 +7/12                   ☑ ☑

7/6+(-5/12)                                                                                  ☑  ☑

-3/4+(-2/3)                                                                                  ☑  ☑

5-7/10                                                                     ☑  ☑

1/8 - 5/3                          ☑  ☑

3/2 - 4/5                                                                  ☑  ☑

A scale factor of 3 was applied to this figure. What would be the new length of the height and width of the triangle?

Answers

Answer:

height: 9 units

width: 9 units

Step-by-step explanation:

HELP PLS WILL GIVE BRAINLISTE

Answers

Answer: D and J

Step-by-step explanation:

Subtract 17.56 from both sides and divide by 5 to get the answer of D. 2.52

3x + 6 = 9

subtract 6 from both sides

3x = 3

x = 1

Find the least common multiple of 45 and 120

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{360}}}}}[/tex]

Step-by-step explanation:

Steps for finding L.C.M of the given numbers :

[tex] \star[/tex] First of all find the prime factors of each numbers.

[tex] \star[/tex] Take out the common prime factors.

[tex] \star[/tex] Also take out the remaining prime factors.

[tex] \star[/tex] Multiply those all prime factors and obtain L.C.M. If there is not any common prime factors then their L.C.M is the product of the given numbers.

Now,let's find the least common multiple ( L.C.M ) of 45 and 120 following those steps :

prime factors of 45 = 3 × 3 × 5

prime factors of 120 = 2 × 2 × 2 × 3 × 5

Common prime factors= 3 and 5

Remaining prime factors = 2 , 2 , 2 and 3

Multiply all the prime factors to obtain L.C.M

[tex] \dashrightarrow{ \sf{3 \times 5 \times 3 \times 2 \times 2 \times 2}}[/tex]

[tex] \dashrightarrow{ \boxed{ \sf{360}}}[/tex]

Hope I helped!

Best regards! :D

An investor purchased a house 8 years ago for ​$48,000 This year it was appraised at ​$73,500 Complete parts​ (a) through​ (d) below. ​(a) A linear equation V=mt+b,0

Answers

Answer:

b = $48000, m = $3187.5 / year

Step-by-step explanation:

The equation of a linear function is given as y = mx + b, where m is the rate of change, b is the value of y when x = 0, y = dependent variable and x = dependent variable.

Given that V = mt + b:

b = initial price of the house at 0 years = $48000

V = mt + 48000, At 8 years the house is appraised at ​$73,500

73500 = 8m + 48000

8m = 73500 - 48000

8m = 25500

m = 3187.5

A city has h a population of 2549786 people

Answers

Step-by-step explanation:

Braziliannngffcghjhhb

hgg

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