If x = 3 and y = -4, evaluate:2x2 – 5xy + y

Remember to show your work separately to be submitted in dropbox.

Answers

Answer 1

Answer:

[tex]74[/tex]

Step-by-step explanation:

[tex]2 {x}^{2} - 5xy + y \\ 2 \times {3}^{2} - 5 \times 3 \times - 4 + ( - 4) \\ 2 \times 9 - 15 \times - 4 - 4 \\ 18 + 60 - 4 \\ 78 - 4 \\ = 74[/tex]

Hope this helps you.

Can I have the brainliest please?

have a nice day!

Answer 2

Answer:

74

Step-by-step explanation:

2x² - 5xy + y

Substitute x and y into the equation.

2(3)² - 5(3)(-4) + (-4)

Square the three.

2(9) - 5(3)(-4) + (-4)

Multiply the 2 and the 9.

18 - 5(3)(-4) + (-4)

Multiply 3 and -4.

18 - 5(-12) + (-4)

Multiply -5 and -12.

18 + 60 + (-4)

Add 18 and 60.

78 + (-4)

or

78 - 4

Subtract

74


Related Questions

14
4(x + 6)
+
2(3x – 5) =
A) 4x + 14
B) 10x + 34
C) 10x + 14
D) 10x – 24
E) NOTA

Answers

Answer:

D) 10x - 24

Step-by-step explanation:

Bc I know maths a lot

En un partido de baloncesto, los máximos anotadores han sido Juan, Jorge y Mario. Juan ha logrado 19 puntos. Jorge 5 puntos más que Juan y Mario 7 puntos menos que Jorge. ¿Cuántos puntos han obtenido entre los tres? *

Answers

Answer:

31

Step-by-step explanation:

Answer:

31

Step-by-step explanation:

The diagram shows a triangle.

What is the value of w?

Answers

Answer:

value of W=180-(115+33)

= 180-148

=32

Pease help this is due sopn

Answers

Answer:

value of a=90-24=66

value of b=90+66=156

value of c,

c-18=24

c=24+18=42

A square has a side length of 12 cm. Which of the following is closest to the length of its diagonal? A) 9 cm B) 12 cm C) 12v 2 cm D) 24V3 cm 12 VT Fora​

Answers

C) 12V2
12^2 + 12^2 = c^2
144 + 144 = 288
V288 = 12V2

Standing on a cliff 380 meters above the sea, Pat sees an approaching ship and measures its angle of depression, obtaining 9 degrees. How far from the shore is the ship? Now Pat sights a second ship beyond the first. The angle of depression of the second ship is 5 degrees. How far apart are the ships?

Answers

Answer:

(a). 2399.23 meters.

(b). 1944.19 meters apart.

Step-by-step explanation:

We have been given that standing on a cliff 380 meters above the sea, Pat sees an approaching ship and measures its angle of depression, obtaining 9 degrees.

(a) We are asked to find how far from the shore is the ship.

We know that tangent relates opposite side of a right triangle with its adjacent side.

Therefore, the ship is approximately 2399.23 meters away from the shore.

Therefore, the both ships are approximately 1944.19 meters apart.

The area of a circle, in terms of π , is 72 π m2. Find the value of the radius. Give your answer as a simplified surd.

Answers

Answer:

R=3rad2

Step-by-step explanation:

Area of circle: pi r^2

72pi=pir^2

r^2=72

r=6rad2

10 POINTS!!!!!!! write an equation for a line that goes through the point (-3,-4) and has a slope on -2​

Answers

Thats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya LungsThats Metal In Ya Lungs

i don’t understand can someone help me with an explanation and answer

Answers

Answer:

c

Step-by-step explanation:

if you have 5 teams, then it has to be 5 games.

Answer:

The answer would be 4 times, since there are 4 other teams for each team to play.

Example:

Say I'm Team Red, and the other teams are Yellow, Green, Blue, and Purple. I would need to go against each of the other teams once and since there is 4 of them, I would have 4 games to play.

helpUeowusjeven?!!! i

Answers

The shapes have 3 sides

A mattress store is having a sale all mattresses are 30% of. Nate wants to know the sale price of a mattress that is regularly $1,000

Answers

Answer: $700

Step-by-step explanation:

The store is selling at 30% off.

If a mattress is $1,000, first find out what 30% of $1,000 is:

= 1,000 * 30%

= $300

The store is selling 30% off, this means that they are reducing the price by 30%:

= 1,000 - 300

= $700

Please help with this (01.02 MC) Simplify negative 6 and 1 over 4 - negative 2 and 1 over 8 . (5 points) Group of answer choices 4 and 1 over 8 negative 8 and 3 over 8 negative 4 and 1 over 8 8 and 3 over 8

Answers

Given:

The expression is:

[tex]-6\dfrac{1}{4}-2\dfrac{1}{8}[/tex]

To find:

The simplified form of the given expression.

Solution:

We have,

[tex]-6\dfrac{1}{4}-2\dfrac{1}{8}[/tex]

Write the mixed fractions in the form of improper fractions.

[tex]=-\dfrac{6(4)+1}{4}-\dfrac{2(8)+1}{8}[/tex]

[tex]=-\dfrac{24+1}{4}-\dfrac{16+1}{8}[/tex]

[tex]=-\dfrac{25}{4}-\dfrac{17}{8}[/tex]

Taking LCM, we get

[tex]=\dfrac{2(-25)-17}{8}[/tex]

[tex]=\dfrac{-50-17}{8}[/tex]

[tex]=\dfrac{-67}{8}[/tex]

Now write this improper fraction in the form of mixed fraction.

[tex]=-\dfrac{64+3}{8}[/tex]

[tex]=-\left(\dfrac{64}{8}+\dfrac{3}{8}\right)[/tex]

[tex]=-\left(8+\dfrac{3}{8}\right)[/tex]

[tex]=-8\dfrac{3}{8}[/tex]

Therefore, the correct option is B.

Help will award brainliest!!!!
IS THE ANSWER A?

Answers

Answer:

it is A becuase it passes through 0,0 and 5,5 the rest either pass through 5,5 but not 0,0 and B doesnt pass thorugh 5,5 but does pass thorugh 0,0 so its A

Step-by-step explanation:

I need help with 13 ABCD

Answers

Answer:

a. n (table)     : 1  2  3  4  5  6

  s (students):4  6  8 10 12 14

b. Arithmetric, since it is adding and corresponding with the numbers

d. 32

not sure about c though. hope this helped.

please help me find x.

Answers

Answer:

81°

Step-by-step explanation:

x + 99 = 180

x = 180 - 99

x = 81

Answer:

x = 81°

Step-by-step explanation:

The two angles shown add up to 180° because they are supplementary because they forma straight line. So, we can write an equation to model the situation:

x° + 99° = 180°

x = 81°

Find the perimeter and Area of the rectangle

Answers

the answer is x^2+5(0) because the theorem matches the equation equally

Answer:

p is 5 by 7 the a is 3 by 6

Step-by-step explanation:

What is the volume of this rectangular prism?


Answers

Answer:

20

Step-by-step explanation:

volume: lwh

.666*5*6=20

Answer:

20 cm³

Step-by-step explanation:

[tex]\frac{2}{3}[/tex] · 6 · 5

[tex]\frac{2}{3}[/tex] · 30

20 cm³

Use the rule to find the output when the input is –6.

Output = Input ÷ 2


a. –8

b. –3

c. 3

d. –4

Answers

Answer: C

Step-by-step explanation:

yes

600 students sat a Math exam. If 86% of students passed the exam, the percentage of people who FAILED is

Answers

Answer:

the percentage of student who failed r 14%

and their number is 84.

stay safe healthy and happy.

600 is 100%
So 100%-86%=14% (84 students)

A cylinder is shown. Which could be the base shape of the cylinder? line non-square rectangle circle square

Answers

Answer:  I believe the correct answer from the choices listed above is the third option. The base shape of a cylinder would be circle. A cylinder is a closed solid that has two parallel (usually circular) bases connected by a curved surface.

Hope this answers the question. Have a nice day.

The base shape of the cylinder is a circle, the correct option is D.

What is a Cylinder?

A cylinder is a three dimensional figure made up of parallel circular discs.

The best shape of the base of a cylinder can be a circle only.

The cylinder has two circular bases as the surface joining the two bases is curved and has the same radius as the base.

To know more about Cylinder

https://brainly.com/question/16134180

#SPJ5

15
An electrical short occurs in your 100-
degree hot tub at noon. It causes the
water to increase in temperature 10%
each hour. When will you be able to
boil an egg in your hot tub?
(212 degrees)
A) 5:00 go to 2
B) 6:00 go to 10
C) 7:00 go to 8
D) 8:00 go to 3
E) 9:00 go to 4
BER
NINIS

Answers

Answer:

D.) 8:00

It’s a geometric problem so when plugged in you get answer D

What is the measure of angle R?

Answers

A

180 - S = R
180 - 65 = 115
A I’m pretty sure, if s was 65 and it being an acute angle like that then the bigger space (r) would be more the 65. But not a huge amount like b.

{6.EE.B.7} Solve for x. 342 + x = 782*

Answers

Answer:

Hello There!!

Step-by-step explanation:

342 + x = 782 -342

x=440

hope this helps,have a great day!!

~Pinky~

Expand to write an equivalent expression. −5(7−2)

Answers

-35+10
If correct please mark as Brainly!


[tex] \sqrt{8 {}^{4} } [/tex]

Answers

Answer:

64 will be your answer!!

Step-by-step explanation:

hope it helps..

Thanks again!!

A line passes through the origin and the point (3.5). What is the slope of the line? 0
3/5
-3/5
5/3​

Answers

Answer:

5/3 is the slope of the line.

Please help me with this

Answers

Answer:

Step-by-step explanation:

i think you have to multiply then divide

Pls help will
Give brainlist

Answers

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

Total girls

= 12 + 18

= 30

Girls who prefer soccer =

12

Percentage =

12/30

= 0.4

= 40%

At Smith's Bike Rentals, it costs $33 to rent a bike for 9 hours.
How many dollars does it cost per hour of bike use?

Answers

Answer:

$3.66

Step-by-step explanation:

I divided 33 by 9

What is 5*2x2*8
fytguyhiguyfrttyughbvftgyhbgy ?

Answers

Answer:

160

Step-by-step explanation:

Answer: 160

Step-by-step explanation:

estdryfugyikiutphpyqh[uirgpAUIhfouuefu

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