Is (3,-2) a solution to the system below? How do you know?
(y + 4x = 10
y +
15x - y = 13


PLEASE HELP!

Is (3,-2) A Solution To The System Below? How Do You Know?(y + 4x = 10y +15x - Y = 13PLEASE HELP!

Answers

Answer 1

Step-by-step explanation:

you know by using the x and y coordinates of the point in the equations and see, if both equations are still true.

if yes, it was a solution, and if just only one is false, then it was not a solution.

(3, -2) in

y + 4x = 10

5x - y = 13

so,

-2 + 4×3 = 10

-2 + 12 = 10

10 = 10 true

5×3 - (-2) = 13

15 + 2 = 13

17 = 13 false

so, it was NOT a solution.


Related Questions

Triangle congruence by SSS/SAS
State if the two triangles are congruent. If they are, state how you know.

Answers

Answer:

if all three side equal to another traingle than we can say SSS congruent criteria

if two side and one angle equal than we can say SAS criteria

Step-by-step explanation:

I hope it's helpful for you

PLEASE HELP ME WITH THIS!!!

Answers

Answer:

B. 1

Step-by-step explanation:

imagining where 10 would be on the graph you can see that the line will cross with 1 missed shot

Please answer as soon as possible, thankyou.

Answers

The coordinates of point A when it is rotated about 180 degrees will be (7,-4).

What is coordinate geometry?

A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.

Given that:-

Point A is shifted by an angle of 180 degrees about an origin.

As it is turned 180 degrees from its initial position ( -7,4) just opposite side of the origin so the new coordinates of the point will be (4,-7).

Therefore the coordinates of point A when it is rotated about 180 degrees will be (7,-4).

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A sandwich shop has four types of sandwiches: ham, turkey, chicken, and PB&J.
Each sandwich can be ordered with white bread or multi-grain bread. What is the probability that the sandwich is ham with white bread?

Answers

Answer:

4

Step-by-step explanation:

each sandwich can be made on either white or whole grain. since there are only 4 options for sandwiches there are only 8 choices in total. ham w white or ham w grain, turkey w white turkey w grain, etc. so there is  a probabilty of 4. let me know if im right!

a 2-quart cartoon od chocolate milk costs 1.52 what is the price per cup

Answers

Answer:

The price per cup is $0.19

Step-by-step explanation:

In a quart there are 4 cups.

1.52÷4=0.38

But because there are 2 quarts you have to divide it by 2.

Which is 0.19

Thats the answer

Pls give Brainliest

Im desperate...

Where is the circumcenter of a right triangle located?
on the hypotenuse
on one of the legs
outside the triangle
inside the triangle

Answers

Answer:

on the hypotenuse

Step-by-step explanation:

Circumcenter lies at the midpoint of the hypotenuse side of a right-angled triangle.

what is 17+6-6+6 divided by 6 + 17.
only 99.9 percent of people could solve. ill give brainiest to first to answer.

Answers

Answer:

[tex]\boxed{\bold{1}}[/tex]

Using Pedmas rule:

[tex]\dashrightarrow \sf \dfrac{17+6-6+6}{6+17}[/tex]

subtract: 6-6 = 0

[tex]\dashrightarrow \sf \dfrac{17+6}{23}[/tex]

simplify the following

[tex]\dashrightarrow \sf \dfrac{23}{23}[/tex]

the numerator and denominator cancels out

[tex]\dashrightarrow \sf 1[/tex]

Given statement:

17 + 6 - 6 + 6 divided by 6 + 17

The phrase "divided by" means division. Therefore,

⇒ (17 + 6 - 6 + 6) ÷ (6 + 17)

⇒ (17 + 6) ÷ (6 + 17)

Recall: A number divided by itself is 1

⇒ 1

Therefore, 1 is the solution to the expression.

Please help, i’ll mark brainliest.

Answers

Answer:

  4568 ft³

Step-by-step explanation:

You want the volume of the figure made from two rectangular prisms.

Volume

The volume of the whole is the sum of the volumes of its parts. The volume of a rectangular prism is the product of its dimensions.

The horizontal prism is 7 ft high, 8 ft wide, and 45 ft long.

The vertical prism has a square base 8 ft on a side, and is 32 ft long.

The total volume is ...

  V = horizontal volume + vertical volume

  V = (7 ft)(8 ft)(45 ft) + (8 ft)²(32 ft) = 4568 ft³

The volume of the figure is 4568 ft³.

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The total volume of the figure is 4,568 ft³

How to find the volume?

We can view this as two different rectangular prisms, remember that the volume of a rectangular prism is equal to the product between its dimensions.

For the one that is laid down, the volume is:

V = 7 ft*8 ft*45 ft

V = 2,520 ft³

For the other prism, the volume will be:

V' = 8ft*8ft*32ft = 2,048 ft³

Adding the two volumes we will get:

volume = 2,520 ft³ +  2,048 ft³ = 4,568 ft³

That is the total volume of the figure in cubic feet.

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A correlation coefficient of -0.85 means:

As one variable increases in value the other variable decreases in value

No relationship between the variables

As one variable increases in value the other variable also increase in value

Answers

Answer:

do you got an answer key

Step-by-step explanation:

9!/6!
Evaluate each factorial expressions

Answers

Answer:

I don't know what I'm doing

Step-by-step explanation:

9! = 362 880

6! = 720

362 880 / 720 = 504 = 384 + 5!

Answer:

9!/6! would be (9 x 8 x 7 x 6 x 5 x 4 x 3 x 2) / (6 x 5 x 4 x 3 x 2), which is 504.

Step-by-step explanation:

A factorial, by definition, is the product of a given whole number and each positive whole number less than itself. A factorial is denoted by an exclamation point (n!), with n being the number you want to find the factorial of.

Ex. 2! = 2 x 1 (you can get rid of the x1 because it does nothing)

     3! = 3 x 2

     4! = 4 x 3 x 2

     and so on...

What's the answer to this?

Answers

Answer: 4

Step-by-step explanation:

      First, we will find the length of sides TU and T'U' to compare. Then, we will find the scale factor. Since the shape gets bigger and not smaller, we will have a whole number - not a fraction.

TU = 3 units

T'U' = 12 units

12 / 3 = 4

       A scale factor of four.

So i can not figure out the answer to this question if anyone could help that would be awesome

Answers

Answer:

MN is correct

Step-by-step explanation:

A segment bisector passes through the midpoint of the segment and divides it in half. Since MN does both of these, it is the segment bisector.

Answer:

MN: 32

Step-by-step explanation:

Which function results after applying the sequence of transformations, in this order, to f(x) = x^5
• stretch vertically by 3
• translate up 1 unit
• translate left 2 units​

Answers

Answer:

C. f(x) = 3(x+2)^5 + 1

Step-by-step explanation:

The basic equation take the form a(x-h)+k

We can plug in the values of 3 for a, 1 for k, and 2 for h, and get the equation f(x) = 3(x+2)^5 + 1

Question 16 of 20
What is the degree of the polynomial 16x2 - 11x3 + 18?

Answers

Answer:

3

Step-by-step explanation:

Find the raised power (exponent) that is greatest in value in order to find the degree of a polynomial. In this example, the highest power is 3, so that is the degree of the polynomial.

hope this helps!

<~~• ¥ Pls HELP me!! ¥ • ~~>

Answers

Answer:

18

Step-by-step explanation:

Area of a triangle: 0.5 x base x height

In this case: 0.5 x 9 x 4

hope this helps

have a good day

Answer:

Area =  18

Step-by-step explanation:

Formula

b*h /2

so

9 *4 /2

= 18

Which statement is true?
11 < 10
11 < 10
-8 > -9
-8 > -9
3 > 5
3 > 5
-2 < -10

Answers

Answer:

-8 > -9

Step-by-step explanation:

Every other question says greaten then, on the other side or other way around.
The higher the number in negatives, the less it actually is.

-8>-9

Step-by-step explanation:

when its a negative number, the number closer to zero is the answer

What is the area of the hexagon?
6m
5m
10 m
5m
6m

Answers

The awnser is 5m that’s what I got‍♀️

A force of 72 N is applied to an area of 610 cm2.
Calculate the pressure in N/m2.
Give your answer to the nearest integer.

Answers

Answer:

[tex]2 \frac{n}{ {m}^{2} } [/tex]

Step-by-step explanation:

[tex] \frac{f}{a} = \frac{72}{6.1 \times 6.1} = \\ \frac{72}{37.21} = 1.93 \\ 2[/tex]

On a test that has a normal distribution, a score of 49 falls two standard deviations below the mean, and a score of 61 falls one standard deviation above the mean. Determine the mean of this test.

Answers

The mean of this test will be 57.

What is Standard Deviation and Mean?

A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean.

The mean can be used to get an overall idea, or picture, of the data set.

Let Mean be 'm'

and standard deviation= [tex]\sigma[/tex]

So, m-2[tex]\sigma[/tex]=49

and, m + [tex]\sigma[/tex]=61

Solving the above two equation we get

[tex]\sigma =4[/tex]

Now, m= 61-[tex]\sigma[/tex]

           = 61-4

           = 57

So , the mean of this test will be =57

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what is natural number example

Answers

Answer:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .........

Step-by-step explanation:

Hope it helps you :))))

have a good day.

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=-4.9t2+64t+136.
The rocket will reach its peak height of 345 meters above sea level at _____ second

Answers

Using the vertex of the quadratic equation, it is found that:

The rocket will reach its peak height of 345 meters above sea level at 6.53 seconds.

What is the vertex of a quadratic equation?

A quadratic equation is modeled by:

[tex]y = ax^2 + bx + c[/tex]

The vertex is given by:

[tex](x_v, y_v)[/tex]

In which:

[tex]x_v = -\frac{b}{2a}[/tex]

[tex]y_v = -\frac{b^2 - 4ac}{4a}[/tex]

Considering the coefficient a, we have that:

If a < 0, the vertex is a maximum point.If a > 0, the vertex is a minimum point.

In this problem, the equation is given by:

h(t) = -4.9t² + 64t + 136.

The coefficients are a = -4.9 < 0, b = 64, c = 136, hence the instant of the maximum height is given by, in seconds:

[tex]t_v = -\frac{64}{2(-4.9)} = 6.53[/tex]

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-n+(-3)+3n+5

please help me with this

Answers

Answer:

2n + 2

Step-by-step explanation:

If the directions for this problem say to "Simplify" then what you will do is to combine like terms. This is an expression because there is no equal sign. If it had an equal sign (and more information) it could be solved.

Since it only an expression we simplify:

-n + (-3) + 3n + 5

= -n + 3n + (-3) + 5

= 2n + 2

Answer:

I believe that it is, 2n + 2.

Step-by-step explanation:

You add all the common factors ( sorry if its a wrong vocab word ) -

( {-3} + 5 ) and ( 3n + { -n } )

-3 + 5 would also be 5 - 3 = 2

3n + -n would be 3n - n = 2n so it would be,

2n + 2 or 2 + 2n.

The length of side AI is?
The length side of IH is?
The area of the visible side of the model is?

Answers

Answer:

AI=3.25 IH= 4.2

Step-by-step explanation

The distance between C and D is 1.3 inches, the distance between E and F is 0.75 inches and the distance between G and H is 1.2 inches. This is true because the model says so. If you look closely together, this is equal to the distance between AI which is the length of AI. The answer would be 1.2+1.3+0.75=3.25. To find the length of side IH you do the same strategy, the distance between sides D and E is 4.8 inches, at the bottom is 9 inches of distance between side I and side F. 9-4.8 inches is equal to 4.2 inches. Therefore, the length of side AI is 3.25 inches and the length of side IH is 4.2 inches. If I am wrong please tell me for feedback, I also hoped that this has helped you in your learning :)

Answer:

Step-by-step explanation:

AI is 3.25

IH is 4.2

Area is 23.025

y(z + y): use y = 2, and z = 4​

Answers

2(4+2) so the answer is 12

Which expression does (cos 3x)(cos x) − (sin 3x)(sin x) simplify to?

cos 4x
sin 2x
cos 2x
sin 4x

Answers

The result for the expression (cos 3x)(cos x) − (sin 3x)(sin x) is cos 4x.

Trigonometric Identities What is trigonometric identities ?

Equations involving trigonometric functions that hold true for all possible values of the variables are known as trigonometric identities.

The addition/sum formula in trigonometry:

In terms of functions of A and B, angle addition formulae express trigonometric functions of sums of angles A[tex]\frac{+}{_}[/tex]B.

Sum formula or cos:

cos (A+B) = cosA.cosB + sinA.sinB

Application of sum formula of cos:

The give equation is as follows,

(cos 3x)(cos x) − (sin 3x)(sin x)

Applying the sum formula,

= (cos 3x)(cos x) − (sin 3x)(sin x)

= cos(3x + x)

= cos 4x

Therefore, the result of the given equation is cos 4x.

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Which problem can be solved with 16 divided by one-eighth?

Answers

The value of the 16 divided by one-eighth is 48 after simplification of the fraction.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that are +, -, ×, and ÷.

We have:

16 divided by one-eighth.

Here the option is not given, but we can solve the above expression.

= 16 ÷ (1/8)

= 16×8  (after simplification)

= 48

Thus, the value of the 16 divided by one-eighth is 48 after simplification of the fraction.

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On a coordinate plane, the pre-image is shifted 2 units to the right and 1 unit up. It is rotated 90 degrees counterclockwise.
Which sequence of transformations produced the image?

Answers

Answer:B.

Step-by-step explanation:

B.a translation 2 units to the right and 1 unit up followed by a counter-clockwise rotation 90° about the origin

Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) – C(x).
Which expression represents P(x), if R(x) = 2x4 – 3.rº + 2x – 1 and C(x) = x4 – x2 + 2x + 3?
24 - 303 – 22 + 4x + 2
24 – 3x3 + x2 – 4
2008 – 3203 + x2 - 4
3x4
32322 + 4x + 2

Answers

Answer: 200x9

Step-by-step explanation: division addion and multiplecatin

A car who travels 225km in 15 hours, what is the average speed?​

Answers

Answer:

= 15km/hour

Step-by-step explanation:

Distance = 225km
Time = 15 hours

We will divide distance over time and then we will get the average speed so the average speed will be = 15 km\hour.

Answer:

Below in bold.

Step-by-step explanation:

Speed = distance / time

= 225/15

= 15 km/hour.

The function C (t) = StartFraction 4 t Over t squared + 2 EndFraction models the cost per student of a field trip when x students go on the trip. How is the parent function On a coordinate plane, 3 curves are shown. One curve opens up and to the right in quadrant 1 and goes through (2, 4) and (4, 1). Another curve approaches x = negative 2 in quadrant 2, changes direction at (0, 0), and then decreases in quadrant 4 and approaches y = 2. The third curve opens down and to the left in quadrant 3 and goes through (negative 4, negative 1) and (negative 2, negative 4). transformed to create the function On a coordinate plane, 2 curves are shown. One curve opens up and to the left in quadrant 2 and goes through (negative 4, 8) and (negative 6, 6). Another curve opens down and to the right and goes through (negative 1, negative 3), (0, 0), and (6, 3).?

Answers

Answer:

It is vertically stretched by a factor of 200 and shifted 10 units up.

Step-by-step explanation:

cool like that

It is vertically stretched by a factor of 200 and shifted 10 units up.

What is a function?

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.

How do you write a function?

You write functions with the function name followed by the dependent variable.

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