Evaluate -xy^2-2y for x=-4 and y=-2

Need help

Answers

Answer 1
xooo 98 )5(7FHBBHHBBBBB

Related Questions

15x10 to the power of 4​

Answers

Answer:

Step-by-step explanation:

[tex]15*10^{4}=15*10000 = 150,000[/tex]

Is the function y=|x-5|a one to one function? Justify your answer

Answers

Answer:

no

Step-by-step explanation:

if a=0 it's y=0, it's not one to one

if ais not 0, it's a even function and it's not 1 to 1, for example a=1, x=8 and x=2 have same f(x)

If you flip three fair coins, what is the probability that you’ll get two tails and one head in any order?

Answers

Step-by-step explanation:

1/ 3 is the probability of getting one head

Please help worth 50 points!!!

Answers

When you divide by a fraction you are really multiplying the reciprocal (flipped).

1/2 / 1/8 is really 1/2 x 8 = 4

Choose an even number between 10 and 19 . Draw a picture and then write a sentence to explain why it its an even number

Answers

Answer:

12, 14, 16, and 18 are all even numbers between 10 and 19

Step-by-step explanation:

They are all even numbers because they end in 2, 4, 6, or 8. 0 is considered neither even nor odd.

Answer:

12 is an even number because it is divisible by 2

simplify the radical and use the imaginary unit i.

Answers

Answer:

49

=

7

i

Explanation:

A square root of a number  

n

is a number  

x

such that  

x

2

=

n

Note that if  

x

is a Real number then  

x

2

0

.

So any square root of  

49

is not a Real number.

In order to be able to take square roots of negative numbers, we need Complex numbers.

That's where the mysterious number  

i

comes into play. This is called the imaginary unit and has the property:

i

2

=

1

So  

i

is a square root of  

1

. Note that  

i

is also a square root of  

1

, since:

(

i

)

2

=

(

1

i

)

2

=

(

1

)

2

i

2

=

1

(

1

)

=

1

Then we find:

(

7

i

)

2

=

7

2

i

2

=

49

(

1

)

=

49

So  

7

i

is a square root of  

49

. Note that  

7

i

is also a square root of  

49

.

What do we mean by the square root of  

49

For positive values of  

n

, the square root is usually taken to mean the principal square root  

n

, which is the positive one.

For negative values of  

n

, the square roots are both multiples of  

i

, so neither positive nor negative, but we can define:

n

=

i

n

With this definition, the principal square root of  

49

is:

49

=

i

49

=

7

i

Footnote

The question remains: Where does  

i

come from?

It is possible to define Complex numbers formally, as pairs of Real numbers with rules for arithmetic like this:

(

a

,

b

)

+

(

c

,

d

)

=

(

a

+

c

,

b

+

d

)

(

a

,

b

)

(

c

,

d

)

=

(

a

c

b

d

,

a

b

+

c

d

)

These rules for addition and multiplication work as expected with commutativity, distributivity, etc.

Then Real numbers are just Complex numbers of the form  

(

a

,

0

)

and we find:

(

0

,

1

)

(

0

,

1

)

=

(

1

,

0

)

That is  

(

0

,

1

)

is a square root of  

(

1

,

0

)

Then we can define  

i

=

(

0

,

1

)

and:

(

a

,

b

)

=

a

(

1

,

0

)

+

b

(

0

,

1

)

=

a

+

b

i

Can someone tell me the answers

Answers

Answer:

exploration is the answer I got

I got Exploration. I think it’s right

What are the coordinates of point J'?

Answers

Answer:

Step-by-step explanation:

The coordinates of point J are (10,-2) and L os a point on the y axis.

1.3 x 9.16? Multiplying decimals​

Answers

One option (that I would use):

Ignore the decimals and multiply 13 x 916.

    9 1 6

  x    1 3

 2 7 4 8

 9 1 6 0

1 1 9 0 8

OK, now take into account there were a total of three digits to the right of decimal points (3, 1, and 6), so your answer also needs three digits to the right of your decimal point.

Answer 11.908

-5 + 9x4-2+(8-3)x6 divide 2 +3

Answers

It's a fraction. At the numerator we have : -5+9×4-2+(8-3)×6 = -5 + 36 -2 + 5×6 = -5 +36-2 +30= 31-2+30 = 29+30= 59

59/2 = 29.5 +3 = 32.5

Help please. Thank you if you do

Answers

im so sorry i dk.............

pls change this to decimal number 1011111 base 2​

Answers

Answer:

95

Step-by-step explanation:

1. First, the binary to decimal formula is:  

decimal = [tex]d_0*2^0 + d_1 *2^1 + d+2*2^2+..[/tex]  

2. Now, let's apply it:

[tex](1011111 )_2= (1 *2^6) + (0 *2^5) + (1*2^4) + (1*2^3) + (1 *2^2) + (1 *2^1) + (1*2^0)[/tex] [tex]1(64) + 0(32) + 1(16)+1(8)+1(4)+1(2)+1(1)[/tex] [tex]64 + 0 + 16 + 8 + 4 + 2 + 1[/tex] [tex]80 + 8 + 4 + 2 + 1[/tex] [tex]88 + 4 + 2 + 1[/tex] [tex]92 + 2 + 1[/tex] [tex]94 + 1[/tex] [tex]95[/tex]

Therefore, the answer is 95.

Tina is working on a science project. She needs to make green paint in
order to complete her project. For every two gallons of blue paint, she
needs to add six gallons of yellow. If Tina used a total of 1,312 gallons
of paint, how many gallons were yellow?
94

Answers

Answer:

I think 164

Step-by-step explanation:

1312/8

A snake bar sold 12 1/2 gallons of milk at 35 cents a pint. How much did the snack bar receive for the milk

Answers

9514 1404 393

Answer:

  $35.00

Step-by-step explanation:

The number of pints sold is ...

  (12.5 gal)×(8 pt/gal) = 100 pt

Then the total amount received for the milk is ...

  (100 pt)($0.35/pt) = $35.00

HELLPPPPPPPPPPP


The graphs of functions f(x) and g(x) = f(x)+k


The value of k is ____?

Answers

Answer:

2

Step-by-step explanation:

f(x) starts at the orgin, (0, 0), and g(x) starts at (0, 2)

With this information we can decide that k is 2 as it moved the line up 2

(hope this helps, I see that is Canvas, good luck!)

i don't know how to do math lol​

Answers

Answer:

Ima guess 60

Step-by-step explanation:

9514 1404 393

Answer:

  60°

Step-by-step explanation:

The exterior angle is equal to the sum of the remote interior angles:

  100° = 40° +∠B

  60° = ∠B . . . . . . . . . . . . . subtract 40° from both sides

2 3/4 gallons in 3 2/3 minutes

Answers

Step-by-step explanation:

2 3/4 gallons in 3 2/3 minutes

equal to :

11/4 ÷ 11/3 =

11/4 × 3/11 =

3/4 gallons per minutes

or

0.75 gpm

2 3/4=11/4gallons3 2/3=11/3 min

Speed

11/4÷11/311/4×3/113/4gallons per minute

What is the length of segment BC?
14
100
196
10

Answers

10 ….. x z z. Z z z z

Work out the value of x. And give a reason for your answer

Answers

Answer:

x = 120°

The triangle is an equilateral triangle and all the angles in an equilateral triangle equal 60°.

Straight lines have 180° angles.

180 -  60 = 120

X=120 just took the test

Write an equation for a line parallel to y = − 2 x + 4 and passing through the point ( 2 , 1 )

Answers

Answer:

x=2y

Step-by-step explanation:

y=-2x+4 is perpendicular to the line which passes through (2,1). We know that we can use the formula y=mx+c to find the gradient of the line with the equation y=-2x+4, which will give you -2. The product of the gradient of two perpendicular lines is always -1. So the gradient of the line which passes through (2,1 ) is -½.

Now,to find the equation of the line,we use the formula y-y1=m(xx1)which will give you the answer 2y=x when solved.

Choose the correct name for the set of numbers, {1,2,3,...) irrational numbers integers whole numbers real numbers natural numbers rational numbers​

Answers

Answer:

These are rational numbers.

1/4X - 8 + 12 = -3/4X + 5 Solve for X

Answers

Answer:

x = 1

Step-by-step explanation:

I'm going to convert this to decimal to make it easier to type

Since x = 1, there is no need to include it in the equation

1/4 - 8 = -7.75 + 12 = 4.25

-0.75 + 5 = 4.25

Answer:

By simplifying both sides of the equation, then isolating the variable.

X=1

Step-by-step explanation:

1/4*1-8+12=-3/4*1+5

HELPP PLSS URGENT PLSS

Answers

Answer:

pc wuidorn8

Step-by-step explanation:

find the factors and the greatest common factor for each set of numbers. 250, 45, 30

Answers

The gcf of 250, 45, and 30 is 5

The somatic cells, or non-reproductive cells, in the human body contain 46 chromosomes that occur as 23 pairs of chromosomes.


Which answer below best explains where these chromosomes come from?

Answers

Step-by-step explanation:

23 of the chromosomes come from one parent , 23 from other parent.

Help me out please!!

Answers

Step-by-step explanation:

1. [tex](fg)' = f'g + fg' [/tex] (chain rule)

2 [tex]f(x) = x^5\sin{x}[/tex]

[tex]\Rightarrow f'(x) = 5x^4\sin{x} + x^5\cos{x}[/tex]

Hey , I think it’s 75 but I kinda think it should be highter…?

Answers

Answer:

120

Step-by-step explanation:

Rectangle 1 volume:

3x5x2=30

Rectangle 2 volume:

3x7x2=42

Rectangle 3 volume:

3x8x2=48

Total Volume:

48+42+30=120

Please help and show work?

Shuana bought a skirt on sale for $28.00. That is, 80% of the regular price. What is the regular price?

Answers

Answer:

35

Step-by-step explanation:

28 divided by 0.80 = 35

Choose the best description for the real number 34 over 3 .

Answers

Answer: the first one is irrational because it is a repeating fraction.

the third is square root of 7 is less than 14/5

the fourth is negative 5 over 6, negative 5, negative 31 over 6, negative square root 26

Step-by-step explanation: Hope this helps !

What is the slope of -7 ,-4 and 7,-4

Answers

Answer:

ifk

Step-by-step explanation:

what is a nice party in the car going right be in a call to get place to go out and to some of these things for you to take care and party and to parties place party on the phone case pink or something like else is one nice good to of rid if not you a bit of longer health way your family or

Other Questions
I WILL GIVE 30 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOO SCAMS Gravity creates stars, planets, or black holes through a process called __________?Question 2 options:spiral matteraccretionintertwiningfusion find the derivative of (3x+1)(x+5) Use the excerpt from the Maryland Toleration Act to answer the question.How did conditions in the colony change following the Glorious Revolution inEngland?O A Migration from Britain increased, and newcomers drove outCatholicsB. Enlightenment ideas about equality expanded religious toleration toJewsOC Protestant control of the colony tightened and established a statechurchOD. The rise to power of a Catholic king led colonial leaders to revokereligious freedom write equation in slope intercept form(7,4) and (-5,-4) CAN SOMEONE HELP ME WITH MY FRENCH WORK.. I WILL MARK BRAINLIEST AND GIVE POINTS : Type your answers in the boxes below. For each line you will decide if there is a verb in the pass compos.If so, type in the verb in the pass compos in the first box and its infinitive (unconjugated form) in thesecond box. If there is not a verb in the pass compos, leave the boxes on that row blank. LS2-1 A student has two flasks of growing algae. To one flask they add some phosphorus, while leaving the other flaskalone. The student monitors population numbers of the algae daily for ten days. Based on the graph of the results,what conclusion can be made about the algae population and phosphorus?A) The phosphorous did not change the carrying capacity of the environment. B) The carrying capacity of the environment was fixed. C) The phosphorous decreased the carrying capacity of the environment. D) The phosphorous increased the carrying capacity of the environment. Which hydroxide is a weak base?RbOHCsOHSr(OH)2NaOHNone of these choices are weak bases. how long does it take for a pap smear to come back Una secretaria puede hacer 3 escritos del mismo tamao en 4 horas. Que tiempo le llevar realizar 5 trabajos de la misma longitud? if r= 5 what is |-r| - -r + |r| - |r| Whats the domain and range of the exponential growth function? For Pool A, the water level is dropping 2.5 inches per hour. For Pool B, the water level increases 2.5 inches per hour. Starting water levels are shown. Pool A: 60 inches Pool B: 20 inches When will the pools have the same water level? Write an equation and solve. Enter the correct answers in the boxes. Equation: h=what. The pools will have the same water level after hours. grammar is easy, I'm going to ace this test is this a compound run on or complex sentence i just wanna say i hope your having a good day! and you are enough! keep going u got this! Which country has the abbreviation of (KSA) and what language do they speak? Who likes horses!! and why? Does anyone own a horse? I do!'THIS IS ACADEMIC RELATED. I HAVE TO SEE THE PERCENTAGE OF PEOPLE WHO LIKE THE SAME THINGS I DO. "You shouldn't eat too much fatty food"->The doctor advised me..... HELPPPPPPPPPPPPPP:((((((((((((((((((((((Compare and contrast meiosis and mitosis. How many daughter cells are produced by each, and how many chromosomes do they have? In what contexts do meiosis and mitosis occur? A stallholder at the weekend market buys 10kg of broken chocolate pieces for $45. She puts them into smaller plastic bags of 250g and sells them for $1.50. Find the percentage profit.