Mathematics College

1. What is the solution to the system?

[1] x + y + z = 2
[2] 2x + y - Z=-1
[3] X= 5-2z

A. (2, -1, -2)
B. (2, 1, -1)
C. (2,-1,5)
D. (1, -1,2)

Answers

Answer 1

Answer:

D.(1, -1, 2) hope this helps

Answer 2
B is the correct answer

Related Questions

) Find the area of the shape.

Answers

Answer:

1/2Bh

Step-by-step explanation:

u never said we had to answer

Alice earns M dollars for working 40 hours in a week.Which expression represents the amount of money alice earns each hour?
A.40M
B.40+M
C.40/M
D.M/40​

Answers

Answer:

m/40

Step-by-step explanation:

A cook makes vegetable barley soup by mixing 2 pounds of barley into 7 quarts of vegetable broth. Assume that the cook continues to use the same rate to make more batches of soup. How many pounds of barley should the cook mix with 35 quarts of broth?

Answers

Answer: The answer to this question is 10 :D

Step-by-step explanation:

The answer is 10 pounds.

2 pounds            7 quarts

4                                14

6                                 21

8                                 28

10                                35

Amie had $22 to spend on school supplies. After buying 8 pens, she had $10 left. How much did each pen cost?

Answers

22-8x = 10
-8x = -12
x = 1.5

Answer:

Each pen cost about $1.50

Step-by-step explanation:

My math is most likely wrong but I first did 22-10 and 12. Then I did 12 divided by 8 and got 1.50. Hope this helps :)

What is the median of the data set?

73, 20, 63, 23, 20, 40, 67

Answers

Answer:

40

Step-by-step explanation:

if you line the numbers up like so you will see the number in the middle is 40

aka the median

20,20,23,40,63,67,73

Any tips for a gaming addicted brother? :-/

Answers

Answer:

Step-by-step explanation:

I would take his phone for a bit and also reduce screen time to 6 hours a week at MOST. It would help a lot.

1) 22 oz =
Ibs
oz. plz help with this one

Answers

Answer:

1.375 lbs

Step-by-step explanation:


A store owner decided to collect data on his customers. On one day he observed:
48 people bought 1 item
32 people bought 2 or more items
16 people did not buy anything
Based on the data from that day, what is the probability that the next person to visit
the store will buy 2 or more items?
5
25
16
No links

Answers

Answer:

Step-by-step explanation:

Since a total of 96 people have entered the store and 32 of them have bought 2 or more items, it is clear that the next person entering the store has a probability of 32/96 or 1/3 that he/she will buy 2 or more items.

Y=7x+2 what is the slope

Answers

Answer:

The slope is 7

Step-by-step explanation:

The equation is in y=mx+b form

m=the slope

b=y-intercept

Help me please! I will mark brainliest for whoever gets it right the fastest.

Answers

Answer:

300

Step-by-step explanation:

surface area of prism = p (perimeter)*height + 2* base area

sa = (12+13+5) * 8 + 2* (12*5/2)

    = 30*8 + 2*30

    = 240+60

    = 300

If A(x1, y1), B(x2, y2), (X3, Y3), and D(xx,ya) form two line segments, AB and CD, which condition needs to be met to prove AB ICD? ОА У4 -У, У, -у, - X4 - X X - X OB. 74-Y3 + X4-X = 0 V₂ - X, X - X, oc Yo-Yay 72-Y1--1 x - x x - X, OD. 12-y, *- X, = 1 x₂ - X, Yo-Y OE Y:-72. X.-X2-0 Y₂-X, X - X, ​

Answers

Answer:

The answer is option C..........

To prove that AB is parallel to CD, we need to show that the slope of AB is equal to the slope of CD.

What is line segment?

A line segment is a section of a line with two endpoints. A line segment, unlike a line, has a fixed length.

To demonstrate that AB is parallel to CD, we must show that the slope of AB equals the slope of CD.

The slope of AB can be calculated using the formula:

mAB = (y2 - y1) / (x2 - x1)

Similarly, the slope of CD can be calculated using the formula:

mCD = (ya - Y3) / (xx - X3)

If mAB = mCD, then AB is parallel to CD.

Therefore, the condition that needs to be met to prove AB is parallel to CD is: (y2 - y1) / (x2 - x1) = (ya - Y3) / (xx - X3)

For more details regarding line segment, visit:

https://brainly.com/question/30072605

#SPJ7

76 is what percent of 475?

Answers

Answer:

361

475*76%=361

Hope this helped you out!!

Answer:

16

Percentage Calculator: 76 is what percent of 475? = 16.

Step-by-step explanation:

Answered by none other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!

Hope this helped!!

Hey i need help with this

Answers

Answer:

The x-intercepts are 1 and 3

The y-intercept is 3

The vertex is (2,-1)

The line of symmetry is x=2

Step-by-step explanation:

To find the x-intercepts, find where the graph intersects the x-axis, or the horizontal line. To find the y-intercept, find where the graph intersects the y-axis, or the vertical line. To find the vertex, find the coordinate where the graph is at its lowest point (or highest if it is flipped upside down). To find the line of symmetry, simple use the x-coordinate of the vertex and say x= (the x-coordinate)

A cylinder and a cone have the same volume. The cylinder has a radius of 2 inches and a height of 3 inches. The cone has a radius of 3 inches. Determine the height

Answers

Answer:

so lets get the cones volume first the formula for a cone is V=πr2/3

so V=πr2h

3=π·22·3

3≈12.56637

and then the height of the cylinder is 4

Step-by-step explanation:

For the equation, complete the given ordered pairs.

3x-y=4

{0,_} [1,_} {_,4}


Can someone help me

Answers

Answer:

{0,-4} [1,-1} {8/3,4}

Step-by-step explanation:

3x - y = 4

{0,_} [1,_} {_,4}

For x = 0:

3x - y = 4

0 - y = 4

y = -4

For x = 1

3x - y = 4

3 - 3 - y = 4 - 3

-y = 1

y = -1

For y=4

3x - y = 4

3x -4 = 4

3x = 8

x = 8/3

Solution:

{0,-4} [1,-1} {8/3,4}

Please mark brainliest if this helped!

Please mark brainliest if this helped!


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

Answer: the answer is c

Step-by-step explanation:

Answer:

Angles STQ & RQT

Step-by-step explanation:

They are on opposite sides, but they are also interior.

Hope this helps! Have a good day!

helppppppppp m eeeee plzzzzzzz

Answers

the answer is c, have a great day


You volunteer to help drive children at a charity event to the zoo, but you can fit only 7 of the 19 children present in your van. How many different groups of 7 children
can you drive?
How many different groups of 7 children can you drive?

Answers

Answer:

3

Step-by-step explanation:

• Simon's secret coffee recipe uses 4 sugar
cubes for every 12 cups of coffee he
makes. Last week he made 192 cups of
coffee. How many sugar cubes did he use
last week?

Answers

So we divided 12 and 4 and that makes 3 and then 3x192=576

find the value of x

please

Answers

Answer:

x = 51

Step-by-step explanation:

These angles equal each other because they're vertical angles so:

2x + 8 = 110

2x = 110 - 8

2x = 102

x = 51

What is the volume of this rectangular prism? 1/2cm 4cm 3/2cm
i will mark brainliest thank u​

Answers

Answer:

3

Step-by-step explanation:

i changed 1/2 into 0.5 and 3/2 into 1.5 then 0.5 times 4 times 1.5 and got 3

pls mark me branilest

Marco is turning the expression (x-4)^2 into a trinomial. He writes down what is shown below. What is his error?

Answers

(x-4)(x-4)
=x^2-4x-4x+16
=x^2-8x+16
it’s +16, not negative. he forgot that when you add two negatives together, it becomes positive.

Answer:

Step-by-step explanation:

first, let's solve the equation ourselves.

(x-4)^2= (x-4)(x-4)= x^2−8x+16

now, we can see what's different about the two.

we can say that Marco's answer had the number 16 as a negative, when it was supposed to be positive. Marco wrote the incorrect sign.

Select the correct graph.

Which graph represents function f?

Answers

Answer: top right graph

Step-by-step explanation: Put in calculator and you will find the answer

worth 25 help and show work :)

Answers

Answers:

x = 7*sqrt(3)

y = 7

===========================================================

Explanation:

We have a 30-60-90 triangle here since the missing acute angle is 90-60 = 30 degrees. Or you could note how 30+60+90 = 180.

The side length y is the shorter leg as it's opposite the smallest angle. It's equal to half of the hypotenuse. So y = 14/2 = 7.

The longer leg x is equal to y*sqrt(3). We multiply the shorter leg by sqrt(3) to get the longer leg. This means

x = y*sqrt(3) = 7*sqrt(3)

----------

You could also use the pythagorean theorem if you knew that y = 7 and you had the hypotenuse value as well. You could solve like so

a^2 + b^2 = c^2

7^2 + b^2 = 14^2

b^2 = 14^2 - 7^2

b^2 = 147

b = sqrt(147)

b = sqrt(49*3)

b = sqrt(49)*sqrt(3)

b = 7*sqrt(3)

Which matches up with the value of x we found earlier.

Which expression is equivalent to 64^1/4

Answers

Answer:

C

Step-by-step explanation:

It is C because 64 to 1/4 power is just 64 divided by 4.

17 A plank of wood is 3.6 metres long. 85 cm is sawn off.
How long is the remaining plank?
help please if yo help she will marry you ​

Answers

Answer:

2.75

Step-by-step explanation:

So lets work this out:

First, we will need to convert 85 cm to meters. That would be 0.85 meters.

Now we can take 0.85 meters and subtract it from 3.6. This equals 2.75.

A plank of wood is 3.6 meters long. 85 cm is sawn off.  How long is the remaining plank? 2.75 meters

Also no thank you I am a lady

PLEASE HELPP ASAPPP will mark brainlist

Answers

Answer:

I think this is the answer for the second question.

look at the attachment

Answers

Answer:

5x-60 Is the answer .

5*x =5x -(5*12)5x - 60.

Find the measure of 26.
4 6 = [?]
249
46

Answers

Answer:

Solution given:

<6+24=180[co- interior angle]

<6=180-24=156°

<6=156°

A right rectangular container is 10 cm wide and 24 cm long and contains water to a depth of 14cm. A stone is placed in the water and the water rises 3.4 cm. Find the volume of the stone.

Please and thank you!

Answers

Answer:

1356cm3

Step-by-step explanation:

when the stone is dropped in to the water the new height is 17.4cm(14+3.4)

find the volume when the height is 14cm and when the height is 17.4cm

24*14*17.4=4716

24*14*14=3360

then subtract the two volumes

4716-3360=1356cm3

Answer:

816 cm^3

Step-by-step explanation:

First you want to find the volume of the container with the stone, and then without the stone.

The formula for finding the volume of a rectangular container is V= l x w x h

We substitue in:

With stone:

V= 24cm x 10 cm x (14+3.4 cm)

V= 4,176 cm^3

Without stone:

V= 24 cm x 10 cm x 14 cm

V= 3,360 cm^3

Then, you want to subtract the two volumes to get the stone by itself.

4,176 - 3,360= 816 cm^3

Hope this helps!

PS- I think the answer above me got their numbers mixed up, but they had the right idea.

 

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