Question 12 (1 point)
The solution to 2x + y = 8 and y = x -7 is (5,-2).
True
False

Answers

Answer 1

Answer:

True

Step-by-step explanation:

Used a graphing calculator to check

Hope this helps


Related Questions

The triangle below is equilateral. Find the length of side x x in simplest radical form with a rational denominator

Answers

Answer:

x = √30

Step-by-step explanation:

We are given an equilateral triangle, so the angles will all be (180/3). = 60

Therefore, the angle opposite x is 60° ; hence. We can use trigonometry to obtain the value of x

Tan θ = opposite / Adjacent

Tan 60 = x / √10

Tan 60 = √3

Hence,

√3 = x / √10

x = √3 * √10

x = √30

WILL GIVE BRAINLIEST
Determine whether each scenario below is an example of a BIASED or UNBIASED sample

Answers

Answer:

1. Unbiased

2. Biased

Step-by-step explanation:

i need help plz
99 points waiting for the person that answers the question

Answers

Answer:

No

Step-by-step explanation:

This is from a website so you might have to rephrase it but Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:

y=kx

for some constant k , called the constant of variation or constant of proportionality . (Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x .")

This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.

The graph of the direct variation equation is a straight line through the origin.

Any line that crosses through the origin is a direct variation:
y = kx y = kx y = kx
The graph you're looking at isn't a straight line. We can demonstrate this by demonstrating that the slopes of two pairs of points are not equal.
m = (4 - 0) / m = y/x (2 - 0)
m = 2 m = y/x m = (9 - 0) / (3 - 0) m = 3 m = 2 m = 3
As a result, this isn't a direct version.

what is the solution to the system of equations graphed below?​

Answers

I believe it would be (A) 0.-4

Find the side length of x (trigonometry)

Answers

Answer:

x=12.124

Step-by-step explanation:

here 7 and x are the legs of the triangle where as 14 is hypotenuse because it is opposite opposite to 90 degree.

using pythagoras theorem

a^2 + b^2 = c^2

here and b are legs and c is hypotenuse

7^2 + x^2 = 14^2

49 + x^2 = 196

x^2 =196-49

x^2 =147

x=[tex]\sqrt{147}[/tex]

x=12.1243

x=12.124 (after converting to the nearest hundredth)

58/360 in simplest form​

Answers

Answer:

29/180 is the answer for 58/360 in simplest form

For each of the following quadrilaterals, select all the properties that must be true.

Answers

All have 2 pairs of parallel sides all sides congruent and all have rig angles
2.0gm
This is the answer to the qjestion

two rectangles have a scale factor of 4:1. If the area of the larger rectangle is 156cm^2, what is the area of the smaller rectangle?

A. 26.75 cm^2
B. 31 cm^2
C. 9.75 cm^2
D. 39 cm^2

Answers

Answer:

c=9.75cm^2

Step-by-step explanation:

156/16 because you are deivding each side by 4 and 4x4=16 and the area is 156

A tube of toothpaste holds 75 ml.
How many tubes can be filled using 3 litres of toothpaste?
Pls help

Answers

Answer:

40 tubes

Step-by-step explanation:

1 liter = 1,000 milliliters

2 liters = 2,000 milliliters

3 liters = 3,000 milliliters

A tube of toothpaste = 75 ml

How many tubes can be filled using 3 litres of toothpaste?

Let

x = number of tubes

x tubes of toothpaste = 3000 ml

x = 3000 ml / 75 ml

x = 40

x = number of tubes = 40 tubes

If 9 : x = x:4, then x =

Answers

Answer:

x = ±6

Step-by-step explanation:

9 : x = x : 4

Cross multiply

36 = x²

Take the square root of both sidesw

x = ±6

Find the equation of the line that is parallel to the line
y = 3x + 3 and passes through the point (10,1). Write the
equation in slope-intercept form.

Answers

9514 1404 393

Answer:

  y = 3x -29

Step-by-step explanation:

The parallel line will have the same slope: 3. The y-intercept can be found from ...

  b = y -mx

  b = 1 -(3)(10) = 1 -30 = -29

Then the slope-intercept equation is ...

  y = 3x -29

Angelica reads 15 pages of a book each day. In 10 days, she reads 200 pages. Assume the relationship is linear. Find and interpret the rate of change and initial value
Plz help

Answers

Answer:

rate of change: 15 pages per day

initial value: 50 pages

Step-by-step explanation:

In this scenario, the rate of change is 15 pages per day. This means that every single day Angelica can read 15 pages of the book and that is the number by which her total read pages will change. In 10 days Angelica can read 150 pages (10 days * 15 pages per day). Since the question states that in 10 days Angelica has read 200 pages then this means that the initial value of pages read would be 50 since this would be the number of missing pages to obtain the 200 read pages in a span of 10 days...

200 - 150 = 50 pages.

need an answer asap will give the first answer brainliest

Answers

Answer:

The answer would be the first one.

m = -3n

Step-by-step explanation:

Answer:

m = -3n

Step-by-step explanation:

-6 = (-3)2  True

-12 = (-3)4  True

-18 = (-3)6  True

[tex]P=\frac{11}{40}+\frac{1}{4}-\frac{1}{20}[/tex]

Answers

Answer

p = 19/40

Please give brainliest

Solve for x: 3(x + 1) = −2(x − 1) − 4

Answers

Answer:

x = -1

Step-by-step explanation:

i think it’s x = -1

the 6th term of a gp is -2/29,and it's first term is 18.what is the common ratio​

Answers

Answer:

-0.329

Step-by-step explanation:

The formula for Geometric ratio is

an = ar^n - 1

Where

a = First term = 18

r = Common ratio = ?

n = Number of term= 6

Hence

a6 = 18 × r^6-1

From the question

a6 = -2/29

Hence:

-2/29 = 18 × r^6-1

-2/29 = 18 × r⁵

Divide both sides by 18

-2/29 ÷ 18 = 18 × r⁵/18

-2/29 × 1/18 = r⁵

r⁵ = -1/261

Take the fifth root of both sides

⁵√(r⁵) = ⁵√(-1/261)

r = -0.3286032834

Approximately = -0.329

Therefore, Common ratio = -0.329

A wire attached to the top of a pole reaches a stake in the ground 20 feet from the foot of the pole and makes an angle of 58° with the ground. Find the length of the wire.

Answers

it is a right triangle
cos 58 = 20/length of rope
length of rope = 20/cos 58 degrees
= 37.74 feet

what is a way to describe the shape of this graph

Answers

The dots to the right of 5 are more spread out

Need help immediately
A sum of money is to be divided among A, B and C in the ratio 2:3:5. The smallest share amounts to $210.
Calculate:
i. The total sum of money to be shared
ii. C’s share
iii. B’s share​

Answers

Answer:

Step-by-step explanation:

If A, B, and C are in the ratio of 2:3:5 and they are each getting some amount of money in that ratio, then to find the total amount of money they split is found in Ax + Bx + Cx and we need to solve for x. What we are told is that the smallest share = 210 and obviously A is the smallest share. Therefore,

2x = 210 and x = 105.

The total sum = 210 + 3(105) + 5(105) so

Total sum = 210 + 315 + 525

Total sum = 1050 and

C's share is 525 and

B's share is 315

How can you find the area of a circle if you only know the circumference?

Answers

https://youtu.be/3y1U0sntOsI

HELPP PLS ASAP I NEED HELP

Answers

Answer:

Option (b) second one is the correct answer

PLZ THIS IS DUE

Is triangle ABC: A(2, -1), B(5, -1) C(5, 3), a right triangle? Explain in at least 5-7 sentences at a minimum.

Answers

Answer:

yes it is because a right angle triangle has a 90 degree angle and the other sides are equal

Question
2x + 3y = 11
x – 3y =1
What is the solution (x, y) to the given system of equations?
O (4,0)
O (4,1)
O (12,8)
O (12, 10)

Answers

Answer: (4, 1)

Step-by-step explanation:

Let's solve this by adding the equations

2x+3y=11

+x-3y=1

3x=12

Now we can solve

[tex]\frac{3x}{3} =\frac{12}{3} \\x=4[/tex]

Now that we know x=4 it can only be the first to options. Let's sub in the value of x to one of the original equations to find the value of y.

[tex]2(4)-3y=11\\8+3y=11\\8+3y-8=11-8\\\\3y=3\\\frac{3y}{3} =\frac{3}{3} \\y=1[/tex]

The answer is (4, 1)

What is 938 written in standard form?


Answers

Answer:

[tex]9.38 \times 10^{2}[/tex]

Step-by-step explanation:

All numbers in scientific notation or standard form are written

                                                                                       [tex]m \times 10^n[/tex],

where m is a number between 1 and 10.

Answer:

[tex]9.38 \times {10}^{2} [/tex]

Step-by-step explanation:

All numbers in standard form are written

[tex]m \times {10}^{n} [/tex]

Hope it is helpful....

At Marie's Book and Music Store, 7/20 of the sales come from
books, 6/20 of the sales come from music and 3/20 of the sales
come from video games.
What fraction represents the portion of sales from books, music,
and video games?

Answers

the fraction would be 16/20

Please could someone help me?

Answers

Answer:

C

Step-by-step explanation:  6  23  17  16

15 is the highest value

Answer:

7:00 pm

Step-by-step explanation:

Mode - Result that appears the most

15 people said they preferred the time 7pm. 15 is the largest number out of the given data

So the mode is 7pm

I need some help with this please! An explanation would be lovely too!

Answers

Answer:

20

Step-by-step explanation:

if m<ABC is = 40 and BD is besector then m<ABD = 20

how many ounces is 13 lbs?​

Answers

Answer:

208 oz

Step-by-step explanation:

So do 16x13=208

13 lbs=208 oz

brainliest pls?

Answer:

its 208 ounces

please help I will give brainlist​

Answers

Answer:

Your answer will be B

Step-by-step explanation:

Because you find the difference between 14 and 22 or the difference between 22 and 30 or the difference between 30 and 38. and so on then it will be 8

You then say ok 8 times x so for example 8×1 = 8 then you say ok 22 - 8= 22. So it will be 8x+14...

I hope this helped if not tell me please....❤

Answer: Option B (y=8x+14)

Step-by-step explanation:

To solve these kind of question we just simply keep on inserting the values of x and if we get the required value of y that is in the table that equation is our answer, For example lets take Option A,

y = 8x

If we insert x = 0 we get,

y = 8(0)

y=0

but in the table it says we get 14 so option A is incorrect

Like this we keep checking for more values and all the values of x satisfy our equation in Option B like this,

y=8x+14

y=8(0)+14

y=14

y=8x+14

y=8(1)+14

y=8+14

y=22

y=8x+14

y=8(2)+14

y=16+14

y=30

and so on. Now your answer would be Option B.

THE CREDIT GOES TO (IjlalHashmi)

somebody help me out

Answers

F(x)= 4(-5)^2 + (-5) -5
=4(25) -5-5
=100-5-5
=90

[tex]\longrightarrow{\green{90}}[/tex] 

Step-by-step explanation:

[tex]f(x) = 4 {x}^{2} + x - 5[/tex]

Now,

[tex]f( - 5) = 4( { - 5})^{2} + ( - 5) - 5 \\ \\ = 4 \times 25 - 5 - 5 \\ \\ = 100 - 5 - 5 \\ \\ = 100 - 10 \\ \\ = 90[/tex]

.........................................................Note:-

[tex]\sf\purple{BODMAS\: rule.}[/tex]

B = Brackets

O = Orders

D = Division

M = Multiplication

A = Addition

S = Subtraction

And,

[tex]\sf\red{(-\:x\:-)\:=\:+}[/tex]

[tex]\sf\pink{(+\:x\:-)\:=\:-}[/tex]

.........................................................

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}[/tex]

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