If x = 3 and y = 5, work out the value of 4x-2y and 2x² + 3y²

Answers

Answer 1

Answer:

4 × 3 - 2 × 5 = 12 - 10 = 2

2x² + 3y² = 2 × 9 + 3 × 25 = 18 + 75 = 93

Answer 2
Substitute the values for the variables. Since we are given that x=3 and y=5, the new equations will be 4(3)-2(5) and 2(3)^2+ 3(5)^2.

4•3=12
2•5=10

12-10= 2.

Therefore, 4(3)-2(5)=2.

3•3=9

9•2=18

5•5=25

25•3=75.

75+18=93

So, 2(3)^2+ 3(5)^2=93.

The answers will be 2 and 93

Related Questions

What is the slope of y=-5+4xy=−5+4xy, equals, minus, 5, plus, 4, x?

Answers

Answer:

-5/4

Step-by-step explanation:

The slope of a line y=4x-5 is 4.

The equation of a line is y=-5+4x.

What is slope of a line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The formula to find the slope of a line is slope = (y2-y1)/(x2-x1)

The standard form of equation of line is y=mx+c

m is a slope of a line and c is y-intercept

Compare the equation y=4x-5 with y=mx+c, we get m=4

Therefore, the slope of a line y=4x-5 is 4.

To learn more about the slope of a line visit:

https://brainly.com/question/14511992.

#SPJ2

help please anyone?
giving brainliestt

Answers

Answer:

School Y = 4 points

School X = 12 points

Step-by-step explanation:

school x=school y+8

school x=3 school y

x=y+8

x=3y

3y=y+8

2y=8

y=4

x=12

P(x) = 3x³+ 2x²-x what is the value of P(2)​

Answers

Answer:

polynomial is -1

so answer is-1

The proof that UX ≅ SV is shown.

Given: △STU an equilateral triangle

∠TXU ≅ ∠TVS

Prove: UX ≅ SV

Triangle T X V is shown. Point S is on side T X and point U is on side T V. A line is drawn from points S to U to form equilateral triangle T S U. Lines are drawn from point S to point V and from point U to point X and intersect at point W.

What is the missing statement in the proof?

Statement
Reason
1. ∠TXU ≅ ∠TVS 1. given
2. ∠STV ≅ ∠UTX 2. reflex. prop.
3. △STU is an equilateral triangle 3. given
4. ST ≅ UT 4. sides of an equilat. △ are ≅
5. ? 5. AAS
6. UX ≅ SV 6. CPCTC
△SXU ≅ △TVS
△UVX ≅ △SXV
△SWX ≅ △UWV
△TUX ≅ △TSV
Mark this and return

Answers

Answer:

D

Step-by-step explanation:

Edge

Answer:

D

Step-by-step explanation:

At Dustin's Hats, 10 out of the 25 hats at the store are baseball caps. What percentage of hats at the store are baseball caps?

Answers

Answer:

BaseBall hats: 40%

Other Hats: 60%

Step-by-step explanation:

10/25= baseball hats or: 10*4: 25*4: 40/100: 40%

15/25= other hats: 15*4/25*4=60/100/ 60%

10 / 25 = 40 / 100
So 40% are baseball caps

How much will you get paid if you work 28.5 hours for $7.75 per hour?

Answers

Answer: 28.5 hrs x 7.75 = $220.875
This can be rounded up to $220.90

Hope this helps :)

Answer:

$220.88

Step-by-step explanation:

Please choose all that apply!

Answers

I think b, d and e
Please mark brainlist!

April purchased 20 3/8 lb of potatoes for a picnic. The potatoes cost $2.95/lb. What was the total cost of the potatoes?


help

Answers

Answer:

$55.25

Step-by-step explanation:

20 3/8=163     163 divided by $2.95= $55.25

If the scale on a map is = inches/feet 2/10 , how would the following lengths be represented?
a. 15 feet b. 30 feet c. 55 feet

Answers

Answer:

Read below

Step-by-step explanation:

a)3 inches

b)6 inches

c)11 inches

Just cross multiply stuff and boom, those are your answers.

What is the expected value of the random variable with the given probability distribution? If necessary, round your answer to the nearest hundreth.

A) 0.62
B) 1.62
C) 3.70
D) 4.33

Answers

ANSWER: D)4.33




EX: 4.33

helppppppppppppppp plzzzzzzzzzzzzzz

Answers

Answer: 15w

Step-by-step explanation:

compare linear and nonlinear functions

Answers

Answer:
linear functions have no exponents higher than 1, and a graph that looks like a straight line. non-linear functions have at least one exponent higher than 1, and a graph that isn't a straight line.

I hope this helped :)

Match each graph with the function it represents

Answers

Answer:

where is the graphs? We cannot help without the graphd

Complete the proof for the following Algebraic Equation:

3x + 6 = 2(x-1)

Select the answer for x below and show the proof on your page for uploading.

O x - 4

Ox= 1

O x=8

O x--7​

Answers

x= -8

Step-by-step explanation:

3x + 6 = 2(x-1)

3x + 6 = 2x - 2

3x - 2x = -2 -6

x = -8

Question 121 pts
Daniel had $30 to spend at the fair. If the admission to the fair is $8 and the rides cost $1.25 each, what is the greatest number of rides Daniel can go on?

Answers

Answer:

 17 rides

Step-by-step explanation:

30-8=22

22 divided by 1.25=17.6 and then you cant go on without 1.25 so 17

Libby takes a test that has a total possible score of 500. Each question is worth the same number of points. If she misses 4% of the questions, what is her score?

Answers

Answer:

Step-by-step explanation:

We can use the markdown formula to solve this question because it is the same type of problem.

= R x P

1. = 500 x 0.04

= 20

2. 500 - 20

= 480

I'd like to imform you about responsible internet usage. Social sites like this shouldn't be used for asking people to be their girlfriend. They should especialy not be used for inappropriate reasons either. I've seen very offensive pictures on this website. Thank you for listening! Have a great day!

Key: R = Percentage Rate P = Original Price

The sport of wrestling is becoming more popular among girls. The ratio of girls to boys in wrestling is 1 to 5. If there are 200 boys in a wrestling league, how many girls are there? *

Answers

Answer:

40

Step-by-step explanation:

200 divided by 5 is 40, and 40 times 1 is 40.

Answer:

40 girls

Step-by-step explanation:

complete factorization for -20x - 5y

Answers

Answer:

-5 (4x+y)

Step-by-step explanation:

Factor out -5, and -20/-5=4, -5/-5=1.

Yo can someone help me out

Answers

Answer:

The answer is 1/20

Step-by-step explanation:

Answer: 1/20 in fraction form. 0.05 in decimal form.

Step-by-step explanation:

1/5 ÷ 4 = 1/20 in fraction form. 1/5 ÷ 4 = 0.05 in decimal form.

(sinA + cosA)/ (secA + cosecA) = sinA* cosA​

Answers

Answer:

Proof below

Step-by-step explanation:

Trigonometric Identities

We'll prove that:

[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\sin A*\cos A[/tex]

Recall:

[tex]\displaystyle \sec A =\frac{1}{\cos A}[/tex]

[tex]\displaystyle \csc A =\frac{1}{\sin A}[/tex]

Applying those definitions:

[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\frac{\sin A+\cos A}{\frac{1}{\cos A}+\frac{1}{\sin A}}[/tex]

Adding the fractions:

[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\frac{\sin A+\cos A}{\frac{\sin A+\cos A}{\cos A*\sin A}}[/tex]

Dividing the fractions:

[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=(\sin A+\cos A)*\frac{\cos A*\sin A}{\sin A+\cos A}[/tex]

Simplifying:

[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\cos A*\sin A[/tex]

Hence proved

Vanessa and Zack are playing a game where the player with the lower score wins. At the end of the game, Vanessa has a score of Negative 3 and StartFraction 5 over 8 EndFraction and Zack has a score of Negative 3 and two-thirds. Which statement explains who won?

Answers

Answer:

Zack wins.

Step-by-step explanation:

Vanessa's score = [tex]-3\frac{5}{8}[/tex]=-3.625

Zack's score = [tex]-3\frac{2}{3}[/tex]=-3.667

Answer: the answer is D: Comparing the decimal equivalents of their scores shows that Zack won because Negative 3.Modifying Above 6 with bar  is less than –3.625.

Step-by-step explanation: i got it right on the test Hope it helps! :)

7. In order to join a dance team, the team requires a one-time $30 startup fee to cover uniforms as well as a monthly fee of $4. What is the slope of this scenario?

Answers

Answer: the slope is 34

Step-by-step explanation:

A deer travels at the rate of 42 miles in 6 hours. How many miles does it travel in one hour?

Answers

Answer:

7

Step-by-step explanation:

42/6 = 7

iven: PA = PC and BA = BC. Use the diagram to find the length described.

Suppose PA = 15 cm and PB = 9 cm. What is the length of AC?

pabc

AC is
cm in length.

Answers

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[tex]BA = BC = 12[/tex]

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[tex]AC = BA + BC[/tex]

[tex]AC = 12 + 12[/tex]

[tex]AC = 24[/tex]

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Ben is going to make 1/4 pound burgers for a barbecue next weekend. He is planning on making 19 burgers. How much hamburger meat will he need to make 19 quarter pound burgers?

Answers

Answer:

4.75 pounds of hamburger meat

Step-by-step explanation:

In order to calculate the total amount of hamburger meat that Ben would need we would need to multiply the total number of burgers that he wants to make (19) by the amount of meat each burger will use (1/4 pound or 0.25 pound). Therefore, we would do the following...

19 * 0.25 = 4.75 pounds

Finally, we can see that Ben would need a total of 4.75 pounds of hamburger meat to make 19 equal sized 1/4 pound burgers.

please help this is the only question im stuck on

Answers

i think a, bc for the x it’s 2x and the y is +5

Reggie plans to have a garden with 36 plants. He wants the ratio of tomato plants to cucumber plants to be 4:5. How many cucumber plants will be in Reggie's garden?

Answers

Answer:

20

Step-by-step explanation:

Total no of plants in a garden = 36

The ratio of tomato plants to cucumber plants to be 4:5.

Let tomato plants are 4x and cucumber plants is 5x.

ATQ,

4x+5x=36

9x = 36

x = 4

For cucumber plant, 5x = 5(4) = 20

So, there are 20 cucumber plants will be in Reggie's garden

answer asap!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

This is a reflection over x-axis.

a metal block has a mass of 60kg and a volume of 0.5 meter cube. what is the density of the metal​

Answers

Answer:

Step-by-step explanation:

Given

A metal block has a mass = 60kg

volume = 0.5 meter cube

Solution

Density=masala volume

Density=60/0.5

Density of the metal=120kg/m^3

1/4(z 3z) 7=−z 1 please help with this ive been stuck

Answers

Answer:

z=0

Step-by-step explanation:

if the equation was 1/4(3z)7=-1z

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