helpmiiiiiiiiiiiiiiiiiiiiiiiiii​

Helpmiiiiiiiiiiiiiiiiiiiiiiiiii

Answers

Answer 1

Answer:

[tex]2x - 3y = 5 - - - (a) \\ 5x = 4y + 14 \\ 5x - 4y = 14- - - (b) \\ 5 \times (a) - 2 \times (b) : \\ - 7y = - 3 \\ y = \frac{3}{7} \\ x = \frac{22}{7} [/tex]

Answer 2

Answer:

SO not sure if you want me to solve the equation after, but if it's just asking for the matrix method then here ya go

Step-by-step explanation:

SO, first equation is already in matrix form

Second equation = -5x + 4y = -14

So your answer is:

2x - 3y = 5

-5x + 4y = -14


Related Questions


It is winter if and only if it is the month of
December

Answers

Answer:

false

Step-by-step explanation:

winter can lead into the months of January February and others.

HELP
In complete sentences, explain why correlation does not prove causation. Please have at least 3 complete sentences with proper punctuation, grammar, and capitalization.​

Answers

Answer:

Correlation doesn't prove causation because just because two things correlate does not necessarily mean that one causes the other.It's easy to think that just because two things seem related, that one must be the cause of the other. But that can be a foolish and sometimes dangerous assumption

The Table below is a data set that lists how many pairs of shoes are owned by some of your classmates.

Using the data set, what is the median?

Answers

Answer:

7.5

Step-by-step explanation:

To find the median, first order the numbers from least to greatest:

2, 4, 5, 7, 8, 8, 10, 12

Then, find the middle number (number in the middle):

There are 2 middle numbers. 7 and 8.

Because there are 2 numbers, we need to find the average. If there was only one number, that would be the median.

To find the average, add 7 and 8. Then, divide the sum by 2 because there are 2 numbers;

7 + 8 = 15

15 / 2 = 7.5

Have a nice day!

Help me with this question, please!

Answers

Answer:

3,432 m²

Step-by-step explanation:

The amount of aluminum in square meters needed to make the mailboxes = 1863(surface area of each mailbox)

Surface area of each mail box = ½(surface area of cylinder) + (Surface area of rectangular prism/box - area of the surface of the box that joins the half-cylinder)

✔️Surface area of ½-cylinder = ½[2πr(h + r)]

r = ½(0.4) = 0.2 m

h = 0.6 m

π = 3.14

Surface area of ½-cylinder = ½[2*3.14*0.2(0.6 + 0.2]

= 0.628(0.8)

Surface area of ½-cylinder = 0.5024 m²

✔️Surface area of the rectangular box/prism = 2(LW + LH + WH)

L = 0.6 m

W = 0.4 m

H = 0.55 m

Surface area = 2(0.6*0.4 + 0.6*0.55 + 0.4*0.55)

Surface area of rectangular box = 1.58 m²

✔️Area of the surface joining the half cylinder and the box = L*W = 0.6*0.4 = 0.24 m²

✅Surface area of 1 mailbox = (0.5024) + (1.58 - 0.24)

= 0.5024 + 1.34

= 1.8424

Amount of aluminum needed to make 1863 mailboxes = 1863 × 1.8424 = 3,432.3912

= 3,432 m²

factorize fully and also write in simplest form [tex]x^{2} +3x-10[/tex]

Answers

Step-by-step explanation:

x²+3x-10 =

(x+5)(x-2)

______

hii someone pls help me, I’m confused

Answers

Answer:

A, B, and D

Step-by-step explanation:

A, B, and D

Answer:

m²+m²+m²+m²

m⁸

4m²

Step-by-step explanation:

The equation is basically asking what is the same as m² times 4

A container is in the shape of a rectangular prism with a square base. It has a volume of 99 cubic inches and a height of 11 inches. How many softballs with a diameter of 3.8 inches will fit into the container? Use the drop-down menus to explain your answer.

Answers

Answer:

3

Step-by-step explanation:

How many ways can you arrange the letters in the word Vacuum?

Answers

Answer:

The answer is 360 ways

Step-by-step explanation:

Answer:

720 arrangements

So the six letters can be a combination of 6×5×4×3×2×1 letters or 720 arrangements.

Step-by-step explanation:

What is the midpoint of the segment shown below?

Answers

It would be C, 5/2, -7/2

Marking brainliest

Please help

Answers

I think the answer is plus bc you need to add

Answer:

The quantities that are needed would be;

a variable (y) representing the total cost that needs to be found out

a constant cost for per cupcake made  (This would be 0.17)

a variable (x) representing the number of cupcakes made

any additional cost (This would be $75)

Hope this helps!

5. A number or symbol multiplied with a variable

Answers

Answer:

Coefficient

Step-by-step explanation:

Is x + 15 = 7 true when x = 12?
_________________________

Answers

Answer:

no not even if its supposed to be a negative

Step-by-step explanation:

12 + 15 = 27
Not true

12+[ 9 4/5 - ( 1.5 + 2 2/10)]



Someone please help me?​

Answers

Answer:

18.1

The thing You NEEDED to do

Simplify or Evaluate Your Answer

10. Tamara wants to find the height of a tree outside her home. Using her clinometer, she measures the slope angle from 8 feet away from the base of the tree and gets an angle of 40o . If Tamara's eye level is 5 feet above the ground, how tall is the tree (rounded to the nearest tenth of a foot)? Show your work.

Answers

Answer:

11.7 ft

Step-by-step explanation:

Remember the notation SOHCAHTOA

We would be using tan because we have been given the adjacent and we are to determine the opposite value

tan 40 = opposite / adjacent

0.8391 = opposite / 8

opposite = 0.8391 x 8

6.7

Tamera is 5 ft above ground = 6.7 + 5 = 11.7 foot

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

Please find attached a diagram explaining this question

ASNWER ALL FOUR YES AND NO ANSWERS FOR 25 POINTS

Answers

Answer:

Yes

No

No

Yes

Step-by-step explanation:

Cosine of theta is adjacent over hypotenuse.

Sine of theta is opposite over hypotenuse.

HELP ASAP! Find the area of the shaded region.

Answers

Answer:

73.4

Step-by-step explanation:

the answer is 73.3966

what is the ratios for 150 and 3

Answers

The correct answer is 50:1 I got that one right!

1.
Write y = x2 - 4x – 5 in the form y = (x + h) + k
Someone please help meee

Answers

Answer:

y = (x - 2)² - 9

Step-by-step explanation:

Using the method of completing the square

add/ subtract ( half the coefficient of the x- term)² to x² - 4x

y = x² + 2(- 2)x + 4 - 4 - 5

y = (x - 2)² - 9

At a point on the ground 50 feet from the foot of a tree, the angle of
elevation to the top of the tree is 53 degrees. Find the height of the tree.
Round to the nearest hundredths.

Answers

Answer:

66.35 feet

Step-by-step explanation:

We solve the above question using the Trigonometric function of Tangent

= tan θ = Opposite/Adjacent

θ = 53°

Opposite = Height of the tree = h

Adjacent = Point of the ground from the foot of the tree = 50 ft

Hence,

tan 53 = h/50ft

Cross Multiply

h = tan 53 × 50ft

h = 66.352241081 ft

Approximately to the nearest hundredth, the height of the tree = 66.35 feet

(-2-√3) (-2+√3) when simplified is​

Answers

Answer:

=1

Step-by-step explanation:

(-2-√3)(-2+√3)

=-2(-2+√3)-√3(-2+√3)

=4-2√3+2√3-√9

=4-3

=1

Which statements about the system are true?
Select TWO options.

y = 1/3x - 4
Зу - х = -7

A. The system has one solution.

B. The system consists of parallel lines.

C. Both lines have the same slope.

D. Both lines have the same y-intercept.

E. The equations represent the same line.

Answers

2 Answers:

B)  The lines are parallelC)  The lines have the same slope.

Parallel lines always have equal slope, but different y intercepts.

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

Explanation:

Let's solve the second equation for y

3y - x = -7

3y = -7+x

3y = x-7

y = (x-7)/3

y = x/3 - 7/3

y = (1/3)x - 7/3

The equation is in y = mx+b form with m = 1/3 as the slope and b = -7/3 as the y intercept. We see that the first equation, where y was already isolated, also has a slope of m = 1/3. The two equations of this system have the same slope. Choice C is one of the answers.

However, they don't have the same y intercept. The first equation has y intercept b = -4, while the second has b = -7/3. This means that they do not represent the same line. They need to have identical slopes, and identical y intercepts (though the slope can be different from the y intercept of course) in order to have identical lines. So we can rule out choice D and E because of this.

Because the two equations have the same slope, but different y intercepts, this means the lines are parallel. Choice B is the other answer.

Parallel lines never touch or intersect, which in turn means there is no solution point. A solution point is where the lines cross. We can rule out choice A.

I recommend using your graphing calculator, Desmos, GeoGebra, or any graphing tool (on your computer or online) to graph each equation given. You should see two parallel lines forming. I used GeoGebra to make the graph shown below.

The table below shows how the length of Alex's
lizard changes over time.
Age
(years)
Length
(centimeters)
1
1
5.0
2.
7.4
3
9.8
4
12.2
5
14.6
What is the slope of the table?

Answers

Answer: The domain is all possible inputs and the inputs in this are {1, 2, 3, 4, 5}

Step-by-step explanation:

Inputs(Domain) 1, 2, 3, 4, 5         Outpust (Range)  5.0, 7.4, 9.8, 12.2, 14.6

Which decimal is equivalent to 8 3/5 ?

Answers

8.6 is equivalent to 8 3/5

What is the surface area of the cylinder with height 2 yd and radius 3 yd? Round your answer to the nearest thousandth.

Answers

Given :

height (h) = 2 yd

radius (r) = 3 yd

Solution :

[tex] \boxed{ \mathrm{Surface \: Area = 2\pi r(h +r )}}[/tex]

[tex]2 \times 3.14 \times 3 \times (3 + 2)[/tex]

[tex]18.84 \times 5[/tex]

[tex] \boxed{\mathrm{94.2 \: yd {}^{2} }}[/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

PLEASE HELP ME ASAP!!! Alex has 64 cubes with dimensions in feet like the one shown. (1/2 ft). He uses all the cubes to fill a box shaped like a larger rectangular prism. What is the volume, in feet, of the larger rectangular prism?

Answers

Answer: MARK AS BRAINLIST PLZ:)

A) First, find the volume of each cube:

V = s³

  = (1/2)³

  = 1/8 ft³

We have a total of 64 cubes, therefore the maximum volume will be:

Vmax = 64 · (1/8) = 8 ft³

B) The volume of a rectangular prism is given by:

V = w × l × h

Therefore any combination of w × l × h = Vmax = 8 will be fine.

Examples:

2 × 2 × 2

4 × 2 × 1

Step-by-step explanation:

HOPE IT HELPS BRAINLIST

find sin(a) in the triangle

Answers

Answer:

the answer is [tex]\frac{20}{29}[/tex]

Step-by-step explanation:

Find volume PLS HELP

Answers

Answer:

88.3

I just think so

I dont have a 20 letter explantion

Does anyone know how to solve this?

Answers

Strictly increasing functions:

Let a function f(a) for x = a, then,

f(a + h), for x = a + h,

If f(a + h) > f(a), we say this a strictly increasing function, as with increase in x, f(x) also increases.

In the given graph, there are straight lines so you can say increasing interval would have +ve slope.

For x = -5 to -4, it increases = [-5, -4]

For x = 1 to 3, it increases = [1, 3]

Answer: [-5, -4] , [1, 3]

0.2x + 0.3 = 0.1x + 0.5

Answers

Answer:

x = 2

Step-by-step explanation:

0.2x + 0.3 = 0.1x + 0.5 ( subtract 0.1x from both sides )

0.1x + 0.3 = 0.5 ( subtract 0.3 from both sides )

0.1x = 0.2 ( divide both sides by 0.1 )

x = 2

Answer. X will be 2

PLZZZZZZZZZZZZ PLZZZZZZZZZZZZ PLZZZZZZZZZZZZ PLZZZZZZZZZZZZ help

Answers

Answer:

a. option is the correct answer

A. Decreased by 15% compared with last years amount
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