URGENT!!! For quiz now!
Solve the pair of simultaneous equations using matrix methods.
1) x + y =2 , x + y =3
2) 3x + 2y = 14 , x + 4y =12
3) -3x + 2y = -16 , -x - 5y = -10
4) y = 2x - 5 , 7x - 2y =16

Answers

Answer 1

Answer:3?

Step-by-step explanation:


Related Questions

4.) Which statement is true about points located in quadrant IV in the
coordinate plane? *
The x-coordinate is negative, and the y-coordinate is positive.
The x-coordinate is negative, and the y-coordinate is negative.
The x-coordinate is positive, and the y-coordinate is positive.
The x-coordinate is positive, and the y-coordinate is negative.
SOMEONE HELP ME PLEASE 30 POINTS

Answers

Answer:

D. (+,-)

Step-by-step explanation:

Map it out!

Quadrant I's points will always be (+,+). It is located in the upper right section.

Quadrant II's points will always be (-,+). It is located in the upper left section.

Quadrant III's points will always be (-,-). It is located in the lower left section.

Quadrant IV's points will always be (+,-). It is located in the lower right section.

The x-coordinate and y-coordinate are both negative, which is the right statement. The best choice is B.


What is a coordinate system?

When determining the location of points or other geometrical elements on a manifold, such as Euclidean space, a coordinate system in geometry uses one or more numbers or coordinates.

The value of the coordinate x and the value of the coordinate y are both negative in the fourth quadrant's coordinate system.

As a result, it is true to say that both the x- and y-coordinates are negative. The correct response is B.

To know more about coordinate systems follow

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Maria is playing with a scale. Two red weights and a 5-ounce weight exactly balance a blue weight. And three red weights and a blue weight exactly balance a 10-ounce weight. What weight, in ounces, would balance a red

weight and two blue weights?

Answers

Answer: 15 ounces
Explanation:

how many faces does the following shape have​

Answers

Answer:

6.

Step-by-step explanation:

Faces in other words is the number of individual shapes on one shape. In this case, how many rectangles is on this shape. Hope this helps have a good day!

Answer:

rectangle is

Edges=12

Faces=6

Vertices=8

Sam is making a blanket and needs 1/3 ball of yarn for each 1/2 inch section. How many balls of yarn will use to make 6 inches of the blanket

Answers

Answer:

12 inches

Step-by-step explanation:

For i = V-1, what is the sum (7 + 3i) + (-8 + 9i)?

Answers

Answer:

12v-3

Step-by-step explanation:

The sum of (7 + 3i) + (-8 + 9i) is 12V - 13

Assume that AABC= APQR. Which of the following congruence statements
are correct? Check all that apply.
A. BC = PO
B. ZRE LC
C. ZA= 20
D. AC = OR
E. AB = PQ
F. ZCE ZP

Answers

Answer:

check B and E

Step-by-step explanation:

All the correct congruence statements are,

⇒ ∠R = ∠C

⇒ AB = PQ

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

Triangles ABC and PQR are congruent.

Now, By definition of congruency we get;

All the correct congruence statements are,

⇒ ∠R = ∠C

⇒ AB = PQ

Thus, All the correct congruence statements are,

⇒ ∠R = ∠C

⇒ AB = PQ

Learn more about the triangle visit;

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Solve the system:


x+4y=1


3x+5y=10

Answers

Answer:

[tex]x=6.25\\y=-1.25[/tex]

Step-by-step explanation:

[tex]3x+5y=10\\x+3y=1\\\\[/tex]

Second equation times 3:

[tex]3x+9y=3[/tex]

1st equation minus equation above:

[tex]-4y=7\\y=-7/4[/tex]

Insert to equation:

[tex]3x+\frac{-35}{4}=10\\12x-35=40\\12x=75\\x=75/12=6.25[/tex]

help please i will give brainlist

Answers

Answer:

Angle 1 is 67 and Angle 2 is 46

Step-by-step explanation:

3(2x-4)-8=5+x
MUST SHOW WORK

Answers

Answer:

5

Step-by-step explanation:

3(2x-4)-8=5+x

6x-12-8=5+x

6x-x-20=5

5x-20=5

5x=5+20

5x=25

x=25/5

x=5

simplify as far as possible:3x+4y+7y​

Answers

Answer:

3x+4y+7y = 3x + 11 y

Step-by-step explanation:

We need to simplify the given expression i.e.

3x+4y+7y

We know that, the like terms gets add up i.e. the sum of 4y and 7y equals 11 y

So,

3x+4y+7y = 3x + 11 y

Hence, the final simplification should be 3x + 11 y.

Answer this pls thank u,

Answers

The answer is D, the yellow

Y+3= -5(x-1) write the equation in slope intercept form

Answers

Answer: The equation in slope-intercept form: [tex]y=-5x+2[/tex]

Step-by-step explanation:

The given equation of a line : [tex]y+3= -5(x-1)[/tex]

The equation of a line in slope -intercept form: y=mx+c, where m= slope , c=y-intercept.

We first use distributive property(a(b+c)=ab+ac) to simplify the given equation, we get

[tex]y+3=-5x+5[/tex]

Subtract 3 from both sides, we get

[tex]y=-5x-2[/tex]

Hence, the equation in slope-intercept form: [tex]y=-5x+2[/tex]

find the value of given expression

[tex](55 - 54) {}^{2} [/tex]

Answers

Answer:

(55-54)²=1²=1 is your answer

Answer:

your answer will be 1

Step-by-step explanation:

......

pls help 11111111111111

Answers

Answer:

g(x) = [tex]2^{x}[/tex] + 4

Step-by-step explanation:

Given f(x) then f(x) + c is a vertical translation of f(x)

• If c > 0 then a shift up of c units

• If c < 0 then a shift down of c units

Here the shift is 4 units up , then

g(x) = [tex]2^{x}[/tex] + 4

Answer:

the answer is B g(x)=2^x+4

Step-by-step explanation:

Sofia calculated the circumference and area of a circle with a radius of 4.
C=2πr
=2(3.14)4
=25.12
A=πr2
=3.14(4)2

She then said, “The value of the circumference of a circle is always half the value of its area.” Is Sofia correct? Justify your answer.

Answers

Answer:

the circumference is 25.12

Solve the following values for x and y :

Answers

Answer and Step-by-step explanation:

2(5x - 5) = 6x + 50

Distribute the 2 to the 5x and -5.

10x - 10 = 6x + 50

Add 10 to both sides, and subtract 6x from both sides.

4x = 60

Divide both sides by 4.

x = 15

5y + 5 = 7y - 9

Subtract 5 from both sides, and 7y from both sides.

-2y = -14

Divide both sides by -2.

y = 7

#teamtrees #PAW (Plant And Water)

What is the answer to this question (hurry plz)

Answers

Answer:

not proportional

Step-by-step explanation:

Four more than double a number is 100 what is the answer?

Answers

Answer:

the number would be 48 i think

Step-by-step explanation:

48 + 48 = 96

96 + 4 = 100

find the volume of the tin. state the units
who ever helps i’ll give you a brainialist. plss

Answers

Answer:

7200 m

Step-by-step explanation:

as volume is l×b×h

300cm = 3m

so 6m×4m×3m= 72m

If someone understands this please help

At a carnival, you spin a spinner that has four equal-sized sections, each a different color: green, yellow, red, and blue. If you land on green, you win 2 points. If you land on yellow, red, or blue, you lose 1 point. Write the expected value equation.

A= B= C=
D= E= F=
G=

Answers

Answer:

A= 4

B= 4

C= -1

D= 4

E= -1

F= 4

G= -1

Step-by-step explanation:

The expected value equation is the probability of something happening multiplied by the amount of times it happens. In this case you have four equal sized sections, so you have a one in four chance to land in any of these sections. A, B, D, and F represent the four for this one in four chance. C, E, and G represent the amount of points you get when you land on those sections, in this case -1

what is 2 1/2 times 1 2/8

Answers

Answer:25/8 or if mixed number 3 1/25

Step-by-step explanation:

Someone help and please make sure the answer is right

Answers

Answer:

This is the exterior angle theorem, so

x+30+x+22=130

2x+52=130

2x=78

x=39

sooooooooooooo

39+22=61 degrees

61 degrees

Answer:

21

Step-by-step explanation:

First set up the equation

130 + x + 30 + x + 22 = 180  (triangle angles always add up to 180)

then start to solve to find x

130 +2x + 30 + 22 = 180

182 + 2x = 180

-182          -182

2x = -2

/2     /2

x = -1

Then just plug it back into the equation

-1 + 22

21

what is the area of rectangle that has the side lengths of 3\4 yard and a 5\6 yatd​

Answers

The answer is 5/8 yards.

What is the resulting equation when the expression for y in the second equation is substituted into the first equation-3x+2y=-3
Y=4x+1

Answers

Answer:

x=-5/11, y=-9/11. (-5/11, -9/11).

Step-by-step explanation:

3x+2y=-3

y=4x+1

---------------

3x+2(4x+1)=-3

3x+8x+2=-3

11x=-3-2

11x=-5

x=-5/11

y=4(-5/11)+1

y=-20/11+11/11

y=-9/11

A cuboid has sides of length 10cm 6cm and 7cm

Find the total surface area of the cuboid

Answers

i do not know guy i just want those points...thanx for those lol

well but i do know this i had the exam of maths so i am explaining it to u but u needa mark this as the brainliest answer

Answer:

Total surface area of a cuboid is 376 square centimeter.

Step-by-step explanation:

Given : A cuboid of length 10 cm breadth 8 cm and height 6 cm.

To find : The total surface area of a cuboid?

Solution :

The total surface area of a cuboid is  

Where, l is the length l=10 cm

b is the breadth b=8 cm

h is the height h=6 cm

Substitute the value in the formula,

Therefore, Total surface area of a cuboid is 376 square centimeter.

what's


[tex] \frac{8}{4} [/tex]

Answers

Answer:

2

Step-by-step explanation:

The answer is 2 hope this helps you

A bookshelf is 45 inches wide. How many 1 & 1/2 inch wide books will fit on the bookshelf? *

Answers

Answer:

30 books

Step-by-step explanation:

bookshelf is 45 inches

each book is 1 1/2 inches

45 / 1 1/2 = 30

30 books can fit on the shelf

Enter the value that belongs in the
green box

Answers

Answer:

100

Step-by-step explanation:

Just add

A new car is purchased for 22300 dollars. The value of the car depreciates at 10.25% per year. What will the value of the car be, to the nearest cent, after 6 years?

Answers

Answer:

$11654 approx

Step-by-step explanation:

Given data

Principal amount =  22300 dollars

Rate= 10.25%

time= 6 years

The expression for the decrease is given as

A=P(1-r)^t-----------Note the negative sign is because of the decrease

substitute

A= 22300(1-0.1025)^6

A=22300(0.8975)^6

A=22300*0.5226

A=$11653.98

Hence the new value is $11654 approx

Harper invested $930 in an account paying an interest rate of [tex]\frac{19}{2}[/tex]% compounded monthly. Zoey invested $930 in an account paying an interest rate of [tex]\frac{37}{4}[/tex] % compounded continuously. To the nearest dollar, how much money would Harper have in her account when Zoey's money has tripled in value?

Answers

Answer:2861

Step-by-step explanation:

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