Evaluate the expression 5xy+ -2xy+y^2 when x=4 and y=-5

Answers

Answer 1

Answer:

-35

Step-by-step explanation:

5(4)(-5) + -2(4)(-5) + (-5)²

= -100 + 40 + 25

= -35

Answer 2

Answer: -35

Step-by-step explanation:

5(4)(-5)+(-2)(4)(-5)+(-5)^2

-100+40+25

-35


Related Questions

f(x) = 1/3x + 1 if x=-18

Answers

Answer:

7

Step-by-step explanation:

1/3*(-18) + 1 = 7

Just plug in the x which is -18, and solve with a calculator.

Hope this helps!

Which of the segments below is a secant?
С
F
О.
В
Д.
А
u
А. ОВ
B. AB
ООО О
C. DE
D. AD

Answers

Answer:

it is d i believe

The secant of a circle is line segment AD. Therefore, option C is the correct answer.

What is secant of a circle?

A line that crosses a circle at two different locations is said to be a secant of the circle. The Roman verb secare, which meaning to cut, is the source of the word secant. It can also be thought of as the chord of a circle extended outside of the circle.

Given that, circle with center O.

In the given figure, FC is chord, OB is radius, AB is tangent, AD is secant and DE is tangent.

Therefore, option C is the correct answer.

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For A = {B, C, D} and B = {A, E, I, O, U}, which set is empty?

Answers

Answer:

B is empty

Step-by-step explanation:



ROCKETS The height in feet of a rocket t seconds after launch is modeled
by h(t) =–16t2 + 72t. Find its average speed from 3 to 4 seconds.
F-56 ft/s
G40 ft/s H 40 ft/s
J 56 ft/s

Answers

The average speed of the rocket from 3 to 4 seconds after launch is: -40 ft/s

Given the equation as a model, h(t) =–16t² + 72t.

Average speed from 3 to 4 seconds = [tex]\frac{h(4) - h(3)}{4 - 3}[/tex]

Find h(4):

h(t) =–16t² + 72t

Substitute 4 for t in the equation h(t) =–16t² + 72t

h(4) = -16(4)² + 72(4)

h(4) = -256 + 288

h(4) = 32

Find h(3):

h(t) = -16t² + 72t

Substitute 3 for t in the equation h(t) =–16t² + 72t

h(3) = -16(3)² + 72(3)

h(3) = -144 + 216

h(3) = 72

Plug in the value into  [tex]\frac{h(4) - h(3)}{4 - 3}[/tex]:

average speed from 3 to 4 secs = [tex]\frac{32 - 72}{4 - 3} = -40[/tex]

Therefore, the average speed of the rocket from 3 to 4 seconds after launch is: -40 ft/s

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Which expressions represents "2 less than the product of 5 and a number"?
A) 5n - 2
B) 5/n - 2
C) 2 - 5n
D) 5 + n - 2

Answers

Answer:

Option A is correct.

Step-by-step explanation:

Let's read the part of the question carefully.

(2 less than the product of 5 and a number)

The phrase "2 less" means subtracting 2 from the minuend."the product of 5 and a number" means multiplication of 5 and a number (5x)

Conclusion:

Therefore:

Our expression is 5n - 2

Hoped this helped.

[tex]GeniusUser[/tex]

24 peppermint; 8 to 5

Answers

Five eighths of 24 is 15

When c=-7, evaluate 4(9/4+5/7c)

Answers

Hey there!

4(9/4 + 5/7c)

= 4(9/4 + 5/7(-7))

= 4(9/4) + 20/7(-7)

= 4(9/4) - 20

= 9 - 20

= -11

Therefore, your answer is: -11

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

The level of significance that determines the area of the critical region for a hypothesis
test, should be chosen before the statistical test findings are evaluated, as to not allow
biasing of the test results by the individuals conducting the hypothesis test.
O True
O False

Answers

The significance level, also denoted as alpha or α, is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 indicates a 5% risk of concluding that a difference exists when there is no actual difference.

The Level of significance that determines the area of the critical region for a hypothesis test, should be chosen before the statistical test findings are evaluated, as to not allow biasing of the test results by the individuals conducting the hypothesis test. -  False

What is level of significance?

Level of significance is the" measurement of the statistical significance. It defines whether the null hypothesis to be accepted or rejected. It is expected to identify if the result is statistically significant for the null hypothesis to be false or rejected. The level of significance, also denote as alpha".

The Level of significance that determines the area of the critical region for a hypothesis test, should be chosen before the statistical test findings are evaluated, as to allow biasing of the test results by the individuals conducting the hypothesis test.

Hence, the given question is False.

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What is (-2) (3 4/7)​

Answers

Answer:

option 1

Step-by-step explanation:

(-2) (25/7)

-50/7 = -7 1/7

Answer:

Option A is correct.

Step-by-step explanation:

(-2) (3 4/7)​

=> (-2) x (3 4/7)​

=> -2 x 25/7

=> -50/7

=> -7 1/7

Therefore, Option A is correct.

I am confused in these problems ?
8. 9.

Answers

Answer:

8. 14

9. 720

Step-by-step explanation:

Both questions are asking you to find the GCD (Greatest Common Divisor) and LCM (Lowest Common Multiple).

8. Find the greatest number that can divide 392 and 462 exactly.

Find the GCD of 392 and 462:

  1. Find the prime factorization of 392

2^3 × 7^2 (2 × 2 × 2 × 7 × 7)

  2. Find the prime factorization of 462

2 × 3 × 7 × 11

  3. To find the GCD, multiply all prime factors common to all numbers  

GCF = 2 × 7, therefore GCD = 14.

9. What is the smallest number that is divisible by 20, 48, and 72?

Find the LCM of 20, 48, and 72:

  1. Find the prime factorization of 20

2^5 (2 × 2 × 5)

  2. Find the prime factorization of 48

2^4 x 3 (2 × 2 × 2 × 2 × 3)

  3. Find the prime factorization of 72

2^3 x 3^2 (2 × 2 × 2 × 3 × 3)

  4. To find the LCM, multiply all prime factors

LCM = 2^4 × 3^2 × 5 (2 × 2 × 2 × 2 × 3 × 3 × 5), therefore GCF = 720

Calculator Input:

The easiest way to find the GCD or LCM of 2 or more numbers is by using a scientific calculator. Input GCD(x,y) or LCM(x,y) for the answer. This will work for any amount of numbers as long as the input is logical.

For questions 8 and 9, you would type in GCD(392,462) and LCM(20,48,72).

Not all calculators are made the same, so other labels might be GCF or HCF instead of GCD, and LCF instead of LCM. I use GCD and LCM because that's how it is on my calculator. There isn't any difference, so using any label is fine.

A graph of y=f(x) is given. No formula for f is given. Find the graph of g(x)=f(-1/2x).

Answers

Answer:

B

Step-by-step explanation:

To do this, we'll need to understand the skeleton form of transformations and what each variable represents in the equation. We have y = a(x-h) + k, where a represents vertical scaling, h the horizontal shift, and k the vertical shift.

So in this case, we need to reflect the graph over the y axis and horizontally scale it by a factor of 2 (i.e. stretch the graph horizontally). The answer is B.

Given that
[tex] log_{4}(y - 1) + log_{4}( \frac{x}{2} ) = z \: \: and \: log_{2}(y + 2) + log_{2}(x) = z - 1 \: show \: that \: {y}^{2} = 1 + {8}^{z} \: and \: find \: the \: values \: of \: y \: and \: x [/tex]
when z = 1

Answers

Answer:

Gracias por los puntos

Bye :v

satellite makes 4 revolutions of the earth in one day. How many revolutions would it make in 6 1/2 days?

Answers

4 x 6.5 = 26 revolutions

If (2a+b,11) and (1, a-3b) are equal ordered pair then (a,b) = ______.​

Answers

Given that

(2a+b,11) and (1,a-3b) are equal ordered pair

⇛(2a+b,11) = (1,a-3b)

On comparing both sides then

2a+b = 1 ----------Eqn(1)

11 = a-3b

⇛ a-3b = 11 ------Eqn(2)

⇛ a = 11+3b-------Eqn(3)

On substituting the value of a in Eqn(1) then

⇛ 2(11+3b) + b = 1

⇛(2×11)+(2×3b) + b = 1

⇛ 22 +6b+b = 1

⇛ 22+7b = 1

⇛ 7b = 1-22

⇛ 7b = -21

⇛ b = -21/7

⇛ b = -3

On substituting the value of b in Eqn(3) then

⇛ a = 11+3(-3)

⇛ a = 11-9

a = 2

Therefore, a = -3 and b = 2

Answer:-The value of (a,b) for the given problem is (-3,2).

Select the graph that correctly translates ƒ(x) = |x| 4 units in the negative x-direction and 3 units in the positive y-direction.

Answers

Answer:

it would be the last one

Step-by-step explanation:

lmk if you want an explanation

A mini cooper is 120 inches long. A truck is 83% longer than the car.
How long is the truck?

Answers

Answer:A 16-ounce can of mixed nuts includes 6 ounces of cashews and 10 ounces of almonds. What is the ratio of almonds to mixed nuts in this can of nuts?

Step-by-step explanation:

Answer:

705.8823529411765

Step-by-step explanation:

You find out what percent the Mini Cooper is a subtract that from the full 100%. You would then have 17%. Now you need to divide the 120 inches by 17 to find out what 1% equals. In this case 7.058823529411765, now you multiply by 100 to get the full 100%. The answer is 705.8823529411765

help wit this please

Answers

Answer:

1: Out: 5, 8, 11, 14

2: Out: 2, 7, 10, 11

3: Out: 11  Rule: Add 4

4: Out: 6  Rule: Add 4

1. How can you tell by looking at each graph that a proportional relationship exists between the quantities? 2. Find the constant of proportionality for each graph. Write your answer as y = kx.

Answers

Answer:1. How can you tell by looking at each graph that a proportional relationship exists between the quantities?

relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate. For each point (x, y) on the graph, ž is equal to k, where k is the unit rate. The point (1, k) is a point on the graph.

2. Find the constant of proportionality for each graph. Write your answer as y = kx.

y = kx or y = k/x, where k determines how the two variables are related to one another. This k is known as the constant of proportionality.

Step-by-step explanation:

which of the following represents an arithmetic sequence with a common difference of -8.5?​

Answers

Answer:

C

Step-by-step explanation:

to have a common difference of -8.5, the sequence has to consistently go down by 8.5.

in the first one, y would go up by 2 every time x goes up by 1, so its not that one.

in the second one, it does go down by 8.5 the first time but the next time it goes down by 4.25, so it's not consistent.

in the third one, each time it goes down by 8.5 so this is the answer.

the fourth one also isn't correct because the graph shows that it is going up, so you know for sure it's not that one.

Determine the quotient of 4/5 divided by 4

Answers

It would be 0.2

Mark as brainliest

Answer:

it will probably be 1/5

hope I am correct and sorry if not.

What is the solution to this equation? 1⁵+5²/25⁰-5¹=

Answers

Answer:

It is 21 first guy is no doubt correct.

Step-by-step explanation:

The expression results to 21.

What are Exponents and power?

Exponents and powers can be used to represent extremely big or extremely small numbers in a more straightforward fashion.

For example, if we have to show 3 x 3 x 3 x 3 in a simple way, then we can write it as [tex]3^4[/tex], where 4 is the exponent and 3 is the base.

Given:

1⁵+5²/25⁰-5¹

So, 1⁵ = 1

5² = 25

25⁰ = 1

5¹ = 5

Now, 1⁵+5²/25⁰-5¹

= 1+ 25 / 1 - 5

= 1 + 20

= 21

Hence, the expression results to 21.

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what numbers can multiply to get -55 but also add to get -6

Answers

Answer: 1,  5,  11,  55

In one month Karissa earned $600 at her part-time job, and $50 was withheld for federal income tax. Suppose she earns $900 next month. How much will be withheld for federal income tax?

Answers

Don't get me wrong, I am not exactly sure but I believe it is supposed to be 75$.

A car is traveling at a constant speed of 65 miles per hour. Drag each list or statement below to show whether it describes the independent quantity or the dependent quantity.

Answers

Answer:

dependent quantity.

Step-by-step explanation:

PLZ HELP ME WITH MY MATH HOMEWORK!!! SHOW WORK!!!

Answers

Answer:

Hope it will help you...

Answer:

Step-by-step explanation:

1. A store in Grand Rapids, Michigan, advertised a side-by-side

refrigerator for $1,699.99.

a. What is the sales tax if the combined state and city rate is 6%?

b. What is the total purchase price?

Answers

The store  Grand Rapids in Michigan placed and advert for a refrigerator for $1,699.99, also the tax rate is 6%.

Total cost = Tax + cost of refrigerator

$2719.984

Solution

let us find 6% of $1,699.99, this will be the amount paid as tax

Tax = 6/100*$1,699.99

Tax = 0.6*1,699.99

Tax = $1019.994

Now let us find the total amount paid for the refrigerator

This will be the cost of the refrigerator plus the Tax paid

Total = 1,699.99+1019.994

Total = $2719.984

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two cards from an ordinary deck of 52 cards are lost at random. what is the probability that a random card from the resulting deck is a spade

Answers

Answer:

so theirs 4 suits so 1/4 but since you have 2 cards

its 1/2 or 50%

Hope This Helps!!!

Which expression is equivalent to \sqrt [ 3 ] { 32 x ^ { 8 } y ^ { 10 } } ?​

Answers

Answer:3x⁵

Step-by-step explanation: is equivalent to 3x⁵

HELP PLS 15 POINTS first best is brainliest
What is the area of this figure?

Enter your answer in the box.

mm²

Answers

Answer:14mm

Step-by-step explanation:

Jay works as a waiter at a restaurant.
He works 12 hours each weekend. Jay makes $5.50 per
hour and he gets to keep 60% of his tips.
If Jay wants to earn $150 before taxes, how much tip
money should he get during the weekend?
PLEASE HURRY

Answers

Answer:

67.33.

Step-by-step explanation:

To figure out the tip, you need to find 20% of $52.60.

0.2×52.6=10.52

You should leave $10.52 for the waiter if you want to leave him exactly 20%.

To figure the tax, you need to find 8% of $52.60.

0.08×52.6=4.208

Next, add them up:

52.6+10.52+4.208=67.328

The total bill, including tax and tip, will be $67.33.

Other Questions
autism spectrum disorder is marked by all but which of the following categories of symptoms SOMEONE PLEASE HELP ME WITH THIS !!! YOU ARE HERE, screamed the map in bold red letters. The maze of lines on the map of the Blivet Hotel seemed designed to confuse and disorient the viewer. "We are completely lost," said Penrose with a sigh. "We'll never make it to the conference hall in time for the chess tournament." "You are such a pessimist," Escher chided her brother. "The first match doesn't start for thirty minutes. Surely we'll find the right room by then. The tournament can't go on without you, anywayyou're the main attraction!" "Every floor in this building looks the same," remarked Mobius. "It's like some kind of practical joke by the architect." "Let's try the stairs," Penrose suggested. He led the others to the staircase and began climbing. "Is this the third floor or the fourth floor?" asked Escher, her voice echoing loudly in the stairwell. "This looks like the first floor," Mobius replied with a frown. "How can that be? We've been climbing up for at least two flights." "Someone just sent me a text message," said Penrose. "Maybe it's from one of the tournament organizers." I snuck into the Blivet Hotel and removed all the signs in the building to guarantee that you'll never make it in time, read the message. The sender was his arch-nemesisand his most serious competitorReutersvrd Jones.How would the passage be different if it were told from Reutersvrd Jones' point of view? A. It would make the reader a main character in the story. B. It would let the reader know Penrose's thoughts. C. It would show how Mobius and Escher feel about Reutersvrd. D. It would reveal how Reutersvrd feels about Penrose. if fifteen families are coming to the picnic and they all split the cost evenly between them how much will each family contribute towards the cost of the shelter x Make it a detailed explanation. I will give you multiple points and make you brainliest. The essay is: How to best promote the most humane treatment of felines. You don't need to write the essay just give me some reasons and definitions. Solve four ninths minus four tenths equals blank. All living things are made of one or more organs? True or false Despite many strengths, Herbert Hoover's weakness as a Republican candidate in1928 was which of the following?A. his lack of experience in elective officeB. his painfully old-fashioned approach to capital and laborC. his modest upbringing in lowa and OregonD. his lack of business experience and familiarity with international affairs What do we call these types of fractions?1/2 and 5/10 "schools should use a wireless network instead of a wired network".discuss this statement.(6 marks) is this correct ? if not whats the correct answer? Why did the Cold War start in Europe and how did it involve and impact developing and newly independent nations Which graph represents the function f(x) = |x 2| 1? In paragraph 7 of the selection from the boston girl, what does addys wish to "sink through the floor" tell the reader about her feelings?. I missed a lot of school days due to problems we came in peace for all mankind what does this signify Solve the system of inequalities by graphing.12x+6y152x-4y>8 Complete the sentence. City leaders can protect environmental quality by choosing __________ like shoreline vegetation to protect their coastal communities. sea walls extra sand carbon reduction natural solutions What is the ultimate goal of an interest group? CAN SOMEONE PLEASE HELP ME WRITE AN INTRODUCTION ???MARKING BRAINIEST