Find the value of the expression whenx=1, y=-1,z =0a)5y –y b) 3x² +2y + 3z² c) 2y² -3xyz

Answers

Answer 1

Answer:

a) 4

b) 1

c)2

Step-by-step explanation:

a) 5y - y

= 5 - 1

=4

b) 3×1×1 + 2×1 + 3×0×0

= 3 - 2 + 0

1

c) 2×1×1 - 3×1×1×0

= 2 - 0

= 2


Related Questions

Which point is the reflection of point E across the y-axis ? What’s are it’s coordinates?

Answers

When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite (its sign is changed).

Answer:

The reflection of point E across the y-axis is J(-2, 0).

Step-by-step explanation:

PLATO

Find the value of 49/50 ÷ 7/6 using keep change filp write in simplest form ​

Answers

Answer:

Exact Form:

21/25

Decimal Form:

0.84

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Point A is in Quadrant III. The ordinate in this point is _______.
A. both – and +
B. negative (-)
C. positive (+)
D. zero

Answers

Answer:

if im right its negative

Negative I’m pretty sure sorry if I’m wrong

Part2
Please help I’ll make u brainly

Answers

Answer:

someone game me that same question but sadly i wasn't able to get the answer sorry for the inconvience

Step-by-step explanation:

Answer:

3. 2nd degree. Leading term:

[tex] {3x}^{2} [/tex]

Leading coefficient: 3x

Part 1:

[tex] {2x}^{2} + 11x + 15[/tex]

Part 2:

[tex] {3x}^{2} - x - 2[/tex]

Part 3:

[tex] - {x}^{2} + 12x + 17[/tex]

(Part 3 should be correct, double check it, I think it cancels out the minuses in the part 2 equation?)

P.S. I forgot to solve the equations on this and the first page, don't forget that and I can leave another answer for those if you need!


Help plis plis


18. Find the sum of (x + 3) and
(- x - 4).




Help plis

Answers

Answer:

-1...................

Step-by-step explanation:

x+3-x-4

o-1

-1

Answer :

-1

Explanation:

please mark me brainliest and follow me my friend.

Find the slope of a line parallel to the line through the points. ises 11.3. omplete the following: (c) (10, 6) and (10, 10) ​

Answers

undefined

hope this helps

Answer:

cv vfgvbgfgvd

Step-by-step explanation:

Find the measure of angle YTG

Answers

The angle is 30 degrees
Answer= 30 degrees.

if AB=BA= I then write the relation between matrix A and matrix B​

Answers

Answer:

If  AB = BA = I, then B is inverse of A and vice-versa.

Step-by-step explanation:

Given: AB = BA = I

To find: The relation between matrix A and B.

If AB = BA = I, then B is called the inverse matrix of A and is denoted by [tex]A^{-1}[/tex].

In that case, A is said to be invertible.

Also, if B is the inverse of A, then A is also the inverse of B.

Hence, the relation between A and B is that both are inverse of each other.

can someone help with 9-12 please ?

Answers

Answer:

9-12 is -3

Step-by-step explanation:

Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location.
How far is Harper from home, if the map shows the distance as 3 inches?

Answers

if 34 inches = 50 yards then 1 inch = 50/34
so 1 inch = 1.47058824 yards

3 inches = 4.41176471
you can round this number up to 4.41 yards depending on what the paper says

Please help me! Im really confused!

Answers

Answer:

4) 8:1

Step-by-step explanation:

well on the first perfect point there are 8 cups of raspberry juice and 1 cup of lemon-lime soda and it is comparing them in that order so since 1 is the unit it would be 8:1

Answer:

c is correct answer is yes then please

Find the value of X
ASAP

Answers

X= 103
180 - 65 = 115
X + 12 = 115
X = 115 - 12 = 103

SOLVE FOR X, WILL GIVE BRAINLIEST

Answers

The two angles are supplementary angles and when added together equal 180 degrees.

3x -12 + x+2 = 180

Simplify:

4x -10 = 180

Add 10 to both sides

4x = 190

Divide both sides by 4

X = 190/4

X = 47.5

Alia has a AED 20 gift card for an online music store. All songs at the store have the same price. After Alia buys 3 songs, the balance on the card is AED 16.25. What will be the remaining balance on the card after he buys 5 more songs

Answers

Answer:

Remaining balance = AED 13.75

Step-by-step explanation:

Given that:

Amount of gift card = AED 20

Amount left after buying 3 songs = AED 16.25

Cost of 3 songs = 20 - 16.25 = AED 3.75

Cost per song = [tex]\frac{3.75}{3}[/tex]

Cost per song = AED 1.25

Cost of 5 songs = 5(1.25) = AED 6.25

Remaining balance = 20 - 6.25 = AED 13.75

Hence,

Remaining balance = AED 13.75

Which fraction and decimal forms match the long division problem? 15) 8.000 75. 50 45, 50 45 5 O A. 8 and 0.53 15 O B. 8 15 and 0.53 O C. 15 8 and 0.53 O D. 15 8 and 0.533​

Answers

Answer: The answer is A

Step-by-step explanation:

Help asappppp ? Writing linear Equations?

Answers

Answer:

C=0.75m+3

Step-by-step explanation:

3=flat fee

0.75 per mile

m=mile

c=cost

-12m = 16 . plz its really important i need some help

Answers

Answer:

-1 and 1/3

Step-by-step explanation:

-12 x -1 1/3= 16

Answer:

-3/4

Step-by-step explanation:

-12m=16

m=12/-16

simplify

m=-3/4

Ashley is buying her husband new video games for his PS4. The new Call of Duty and Madden Football is a total of $98.35. How much does each game cost if they cost the same amount?

Answers

Answer: $49.18

Step-by-step explanation:

$98.35 divided by 2 equals 49.175 if rounded it is $49.18

The student population of a school consists of 300 girls and 500 boys

Answers

Answer:

In all you have 800 students.

The ratio of girls to boys is 300:500

500 x 300 = 150000

Step-by-step explanation:

Hope this helps?

Lydia wants to find the height of a flagpole. She measures the height of a tree and the length of the shadow it casts. The tree is 14 feet tall, and its shadow is 21 feet long. Next, Lydia measures the shadow cast by the flagpole, and finds it is 30 feet long. What is the height of the flagpole?

Answers

draw a diagram.

the two are similar bc of AAsimilarity

so 8.8 is to 4 as 22 is to x

basically the answer is 10 ft tall

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

1/6 of 3 and 1/6 x 3

12) Findthe side lengths of cach triangle in the graph that relate to the slope of the line. ​

Answers

Step-by-step explanation:

for the triangle on the left side of the x-axis

the perimeter is :

[tex] {c}^{2} = {2}^{2} + {4}^{2} \\ {c}^{2} = 16 + 4 \\ {c}^{2} = 20 \\ c = \sqrt{20} = 4.47[/tex]

for the triangle on the right side of the x-axis

the perimeter is :

[tex] {c}^{2} = {3}^{2} + {6}^{2} \\ {c }^{2} = 9 + 36 = 45 \\c = \sqrt{45} = 6.708 = 6.71[/tex]

Where do the lines y = 3x + 5 and y = -2x + 10 intersect?

Answers

9514 1404 393

Answer:

  (x, y) = (1, 8)

Step-by-step explanation:

A graphing calculator quickly tells you the point of intersection.

__

You can equate the y-values and solve for x.

  3x +5 = -2x +10

  5x = 5 . . . . . . . . . add 2x-5

  x = 1 . . . . . . . divide by 5

  3·1 +5 = y = 8 . . . . substitute for x in the first equation

The point of intersection is (x, y) = (1, 8).

Which method can be used to solve 11\times13?11×13?

Answers

Multiplication
But when multiplying a number by 11, you add both digits together and place it in between the numbers 1+3=4
11x13=143

The method that would be used to solve 11\times 13 is Multiplication So it would be: 11 x 13 which would equal to 143.

In math times means: Multiplication.

Answer is no longer needed..

Answers

Answer:

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I need help with this shi

Answers

x is domain and y is range... 2, 15, 13, 15, 21... youre welcome

Add the expression. Write the sum in simplest form 3 /x+2 + x+1 / x^2 + 5x + 6

Answers

Answer: ?

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]\frac{3}{x+2} +\frac{x+1}{x^2+5x+6} \\=\frac{3}{x+2} +\frac{x+1}{x^2+3x+2x+6} \\=\frac{3}{x+2} +\frac{x+1}{x(x+3)+2(x+3)} \\=\frac{3}{x+2} +\frac{x+1}{(x+3)(x+2)} \\=\frac{3(x+3)+x+1}{(x+3)(x+2)} \\=\frac{3x+9+x+1}{(x+3)(x+2)} \\=\frac{4x+10}{(x+3)(x+2)} \\=\frac{4x+10}{x^2+5x+6}[/tex]

[tex]=\frac{2(2x+5)}{(x+3)(x+2)}[/tex]

SOMEONE PLEASE HELP ME THIS IS ALMOST DUE AND I NEED THE RIGHT ANSWER PLZ!!!

Answers

Answer:

39

Step-by-step explanation:

x+3x+24=180

4x=156

x=39=A

3x=117=B

please help asap will give brainliest !!!

Answers

Step-by-step explanation:

The longest side in a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle.

So the smallest angle is <P.

Hope it may help :)

is a square + b square is equal to 49 is a line equation is one variable​

Answers

Answer:

Yes

Step-by-step explanation:

Seven multiply seven =49

Answer:

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