2x+y+2z=-2
-2x+2y-z=-5
4x+y+2z=0

Answers

Answer 1

Answer:

minden new yemilew yihegnaw tiyake


Related Questions

Ben and Carson went to the movies with friends. Ben purchased 3 popcorn and 2 boxes of candy for $41. Carson purchased 1 popcorn and 2 boxes of candy for $29. How much did the popcorn cost?

Answers

Answer:

$6

Step-by-step explanation:

B- 3P+2C=$41

C-1P+2C=$29

since they both bought at least 1 popcorn and 2 candy you can just subtract 29 from 41. you get 12 which equals the other 2 popcorns that ben bought

12/2=6

since you need to find the price of 1 popcorn you have to divide 12 by 2

Write a polynomial function of least degree with integral coefficients that has the given zeros. ​

Answers

Answer:

Step-by-step explanation:

To get the equation, you must create the factors containing the roots.

So for example the first set of roots can be produced from

(x -2)(x^2 + 9)

which equals (when expanded) x^3 + 9x - 2x^2 - 18 which when put in the correct order gives

x^3 -2x^2 + 9x - 18

The second one is a bit more difficult to judge.

-5  and -3+  square root(2)

I don't think this is a polynomial. The coefficent is not integral. (-3 +√2)

For each pair figures, find the ratio of the area of the first figure to the area of the second. 14mm 7mm

Answers

The ratio of the area of the first figure to the area of the second figure is 4:1

Ratio of the areas of similar figures

From the question, we are to determine the ratio of the area of the first figure to the area of the second figure

The two figures are similar

From one of the theorems for similar polygons, we have that

If the scale factor of the sides of two similar polygons is m/n then the ratio of the areas is (m/n)²

Let the base length of the first figure be ,m = 14 mm

and the base length of the second figure be, n = 7 mm

∴ The ratio of their areas will be

[tex](\frac{14 \ mm}{7 \ mm})^{2}[/tex]

[tex]= \frac{196 \ mm^{2} }{49\ mm^{2} }[/tex]

[tex]=\frac{4}{1}[/tex]

= 4:1

Hence, the ratio of the area of the first figure to the area of the second figure is 4:1

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if x-y= -10 and x-y=2 what is the value of x

Answers

No solution , because x-y = -10 therefore x-y can’t be -2

True or false, in a ratio the units are not written

Answers

Answer:

True

Step-by-step explanation:

A ratio is normally written using whole numbers only, with no units, in its simplest form. The numbers in a ratio must be written using the same units.

e.g. ratio of 1:2

False, ratio's do no have units.

A question to upload the GeoGebra downloaded file : Graph the quadratic function of your choice and find the vertex and axis of symmetry .​

Answers

Answer:I drew a quadratic function with a vertex and axis of symmetry, hope this helps

Allison is making fruit drinks for her friends.
Each fruit drink is made with 3/5 cup of
strawberries and 1/5 cup of blueberries. If
Allison is making fruit drinks for 6 friends,
how many cups of fruit will she need??

Answers

The number of cups of fruit Allison will need is = 4 ⅘ cups of fruits

Calculation of total quantity of fruits

The quantity of strawberries needed for each fruit drink= 3/5 cup

The quantity of blueberries needed for each fruit drink = 1/5 cup

Therefore the total quantity of fruits needed for each drink = 3/5 + 1/5

= 4/5

If 4/5 = 1 fruit drink

X = 6 fruit drinks

Make X the subject of formula,

X = 4/5 × 6

X = 24/5

X= 4 ⅘

Therefore, the number of cups of fruit Allison will need is = 4 ⅘ cups of fruits

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which statement is true? A. parallel lines to form four right angles B. parallel lines will always be the same distance apart C. parallel lines intersect at no more than one point pls answer :) it would help me alot

Answers

Answer: C.

Step-by-step explanation:Parallel lines never touch so they cant be intersecting.

Find the area of a green shaded region in the figur

Answers

Answer:

The answer is 156cm^2

Step-by-step explanation:

Solution:

The shape given is a trapezium.

The area of the green region = Area of the outer trapezium - Area of the inner trapezium.

[tex]Area\: of\:a\:trapezium\:=\frac{1}{2}\:(a+b)h[/tex]

[tex]Where\: a,b\:are\:the\:bases,\:h=height[/tex]

[tex]For,\:outer\:trapezium,[/tex]

[tex]a=10cm,\:b=14cm,h=16cm[/tex]

[tex]Area\:of\:the\:outer\:trapezium=\frac{1}{2}\:(10+14)16[/tex]

[tex]=\frac{1}{2}(24)(16)=192cm^{2}[/tex]

[tex]For\:inner\:trapezium,[/tex]

[tex]a=3cm,b=6cm,h=8cm[/tex]

[tex]Area\:of\:the\:inner\:trapezium=\frac{1}{2}(3+6)8[/tex]

[tex]=\frac{1}{2}(9)(8)=36cm^{2}[/tex]

[tex]193cm^{2}-36cm^{2}[/tex]

[tex]=156cm^{2}[/tex]

The answer is 156cm^2



[tex]\frac{-65}{100} - \frac{12}{7}[/tex]

Answers

Hope it helps best of luckkkkk….

Answer:

-331/140

Step-by-step explanation:

Lauren's scores on her math tests were 96, 95, 98, 92, 94, 93, and 97. What score could Lauren get on her next math test so that the mean and median remain the same? Complete the explanation. The score on her next test that would keep her mean and median the same would be Because her mean and median are already another score of this value would not alter the mean or the median.​

Answers

Answer:

Lauren needs to get 95  on her next math test so that the mean and median remain the same

Step-by-step explanation:

92+93+ 94+ 95+96+97+98  = 665

665/2 =95

mean=95

median=95

x=  score could Lauren get on her next math

(665+ x)/8 =95

multiply both sides by 8 to eliminate fraction

665 +x = 760

x=95

So now the median is the same

(95+95)/2=95

      shorcut:

with 7 scores 95 is the median(in the middle)

with 8 scores ,we need a number that added to 95 and divided by 2 is still 95  That number is 95

What is the product? 3 x (-6 -14 -11 -9)

Answers

Answer:

-120

Step-by-step explanation:

Following the rules of PEMDAS (parentheses, exponents, multiplication, division, addition, and subtraction)

First when solve the numbers in the parentheses:

-6-14-11-9= -40

Then we can do the multiplication:

3*-40 = -120

Hope this helps! :)

Answer:

-18  -33

-42  -27

Step-by-step explanation:

At age 25, Sam deposited $4,000 into an IRA account where it earns 9.8% interest, compounded monthly. What will it be worth when Sam is 33?

Answers

The amount $4,000 deposited by Sam into an IRA account where it earns 9.8% interest, compounded monthly, will be $12903.8  when Sam is 33.

What is compound interest?

Compound interest is the amount charged on the principal amount and the accumulated interest with a fixed rate of interest for a time period.

The formula for the final amount with the compound interest formula can be given as,

[tex]A=P\times\left(1+\dfrac{r}{n\times100}\right)^{nt}\\[/tex]

Here, A is the final amount (principal plus interest amount) on the principal amount P of with the rate r of in the time period of t.

At age 25, Sam deposited $4,000 into an IRA account where it earns 9.8% interest, compounded monthly. Thus,

[tex]P=4000\\r=9.8\%[/tex]

Now the worth has to be found out when Sam is 33. Thus, the total time period in year is,

[tex]t=33-25\\t=12\rm\; years[/tex]

Put the values in the formula,

[tex]A=4000\times\left(1+\dfrac{9.8}{12\times100}\right)^{12\times12}\\A\approx12903.8[/tex]

Thus, the amount $4,000 deposited by Sam into an IRA account where it earns 9.8% interest, compounded monthly, will be $12903.8  when Sam is 33.

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#SPJ1

Answer: $8733.01

Step-by-step explanation: I got it right on my quiz

PLEASE HELP ILL GIVE FIVE STARS AND GIVE BRAINLIEST AND GIVE THANKS PLEASE HELP
Ray is x years old. His brother Ron is y years older than Ray.
What will the difference of their ages be in 5 years?

Answers

ray is x years old

Ron is x+y years old

in 5 years ron will be 5 years older than now, so x+y+5 years old

 orAnswer:

x - x + y + 5 - 5 = y  or   x + y - x = y

Step-by-step explanation:

The difference now,

x + y - x = y

The difference in 5 years,

(x + y + 5) - (x + 5) = x - x + y + 5 - 5

x - x + y + 5 - 5 = y

The difference in their ages never changes

Odds in favor of drawing a face card

Answers

Answer:

y blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah

12 face cards

->12/52

=3/13

Lin's grandmother ordered needles that were 0.3125 inches. The pharmacist sent her 0.6875 inches needles. How longer were these needles than the ones she ordered?

Answers

Answer:

0.375

Step-by-step explanation:

0.6875-0.3125 = 0.375

You need a 40\% alcohol solution. On hand, you have a 150 mL of a 20% alcohol mixture. You also have 55% alcohol mixture. How much of the 55% mixture will you need to add to obtain the desired solution?

Answers

Answer:

You need to add 200 mL of the 55%   to obtain the desired solution

Step-by-step explanation:

x=mixture you need to add

20% * 150 + 55% x = 40%(x + 150)

0.20 * 150 + 0.55x = 0.40(x + 150)

30+0.55x=60+0.40x

0.15x = 30

x=200 mL

Find the slope of the line 11x + y = -30.

Answers

Answer:

slope =  -11 or m = -11

Step-by-step explanation:

11x + y = -30

y = -11x - 30

I hope this helps!

Find the slope of
the line
Gve your answer as
a fraction in simplest
form.

Answers

Answer:

slope = 1/2

Step-by-step explanation:

we rise 1 and run 2 which gives us y=1/2x

Question 6(1 point)
QS is a tangent to circle P. Find QS.

Answers

QS = 12

PR = 5 since it is also the radius.

So if you use the Pythagorean theorem, you get sqrt(13^2 - 5^2) = 12

If x = 10 units, y = 12 units, z = 12 units, and h = 8 units, then what is the surface area of the triangular prism shown above?

Answers

could you repost/answer with a picture?

HELLO PLS HELP ME THIS IS DUE TMR AND I DONT UNDERSTAND THE ANSWER

Answers

Answer:

6x+7=13

2/3x+8= 8.66

Step-by-step explanation:

calculator and rule with a compass

Carlos took 1/4 hours to clean the kitchen. Then he took 5 3/8 hours to clean the den. How much time did Carlos take to clean the two rooms?

Answers

Answer:

5 [tex]\frac{5}{8}[/tex]

Step-by-step explanation:

[tex]\frac{1}{4} = \frac{2}{8}[/tex]

[tex]\frac{2}{8} + 5\frac{3}{8}[/tex]

Your solution is:

5 [tex]\frac{5}{8}[/tex]

5 and 5/8 1/4=2/8 so, 2/8 + 3/8 = 5/8

Find the solutions to the equation below.

Check all that apply.

4x^2 - 4x - 2 = 0

A. x = -1/2

B. x = 3/2

C. x = 1/2

D. x = -2

E. x = 3

F. x = 2

Answers

Answer:

A and B.

Step-by-step explanation:

4x^2 - 4x - 3 = 0    

4x^2 + 2x - 6x - 3 = 0

2x(2x + 1) - 3(2x + 1) = 0

(2x - 3)(2x + 1) = 0

x = 3/2, -1/2.

help its so hard!!!!!!!!!

Answers

Answer:

It should be 27 from the answer I got

Step-by-step explanation:

Hope this helps <3

Describe the ratio of corresponding measures in scale drawing and the actual measure they represent

Answers

Answer:

More data needed.

Step-by-step explanation:

jijijijiji

The expression c + 0.07c can be used to find the total cost of an item with 7% sales tax, where c is the cost of the item. Use the expression to find the total cost of an item that is $25.

Answers

The total cost of the item at the value of $25 and a tax of 7% is $26.75

Total Cost

Given Data

Tax = 7%Cost of item c = $25

We have the given expression to find the total cost which is

Total = c + 0.07c

Substituting our given data into the expression we have

Total = 25 + 0.07*25

Total = 25 + 1.75

Total = $26.75

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The graph of a linear relationship has a slope of -5 and passes through the point (2, -12). Write the equation of the line in slope-intercept form.

Answers

Answer:

y=-5x-2

Solution:We are given the line's slope and a point that it passes through.Using the given information, we can write the equation of the line in Point-Slope Form:[tex]y-y_1=m(x-x_1)[/tex]In this formula, y₁ stands for the y-coordinate of the point, m stands for the slope of the line, and x₁ stands for the x-coordinate of the point.In this case, y₁ is equal to -12, m is equal to -5, and x₁ is equal to 2.Plug in the values:y-(-12)=-5(x-2)y+12=-5(x-2)Now, convert into Slope-Intercept Form, y=mx+b:y+12=-5x+10y=-5x+10-12y=-5x-2

Hope it helps.

Do comment if you have any query.

Matt buys 9 cookies, and of them are chocolate chip. How many chocolate chip cookies did he buy? A .3 cookies B. 6 cookies C.8 cookies D. 11 cookies​

Answers

Answer:

B. 6 cookies

Step-by-step explanation:

Given :

9 cookies2/3 of them are chocolate chip

Number of chocolate chip

Total x fraction of chocolate chip9 x 2/33 x 26 cookies

PLEASE HELP ILL GIVE THANKS, 5.0, AND BRAINLIEST TO WHOEVER ANSWERS CORRECTLY PLEASE HELP AND ILL GIVE A HIGH POINT COUNT
Sophie bikes at a speed of s miles per hour. Her friend Rana is slower, her biking
speed is only r miles per hour.
Tomorrow both girls are planning to spend 3 hours biking. How much longer will be
Sophie's route?

Answers

Answer:

FOR THIS PROBLEM I GOT..... (20/r)-(20/s)

Step-by-step explanation:

pls brainlest mee

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How does drip irrigation affect the environment?A. It cleans soils of salts.B. It increases loss of water.C. It minimizes evaporation.D. It recharges groundwater supply. Read the passages to answer the question and give your best answer.Question:Which of these is a main idea developed in BOTH passages?A.Insect pests can cause terrible damage to full-grown oak trees.B.The features of oak trees benefit the places where they grow.C.Oak trees provide a very important food source for animals.D.The height of an oak tree is its most important feature.First Passage: The Northern Red OakThe northern red oak is a grand-looking tree. It can grow as high as 75 feet tall. The fall season brings shorter days and cooler temperatures. Fall also brings changes to the leaves of the northern red oak. Leaves turn from green to shades of yellow, orange, and red, which is an amazing sight. 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