Solve the following system of equations: {−6x−y=2−7x−4y=−9

Answers

Answer 1

Answer:

x=-1, y=4. (-1, 4).

Step-by-step explanation:

-6x-y=2

-7x-4y=-9

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

y=-6x-2

-7x-4(-6x-2)=-9

-7x+24x+8=-9

17x=-9-8

17x=-17

x=-17/17

x=-1

-6(-1)-y=2

6-y=2

y=6-2=4


Related Questions

EN Sved. 10:22 AM
The triangle shown can be used
to represent a slope of
10
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10
1
Son
Use the Connect Line tool to
construct a similar triangle that
can also represent a slope of 3
This triangle should not be
congruent to the one shown.

Answers

I uploaded the answer to a file hosting. Here's link:

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find the average rate of change of the function y=f(x)=1/(x-1)^2-8 with respect to x on the interval -2≤x≤0

Answers

Answer:

The average rate of change is (f(3)-f(0))/3=(7-0)/3=7/3.

Step-by-step explanation:

Question here

I need help with this

Answers

cool can i have brainliest

Answer: nice the answer is ummmm I don’t know

Step-by-step explanation:

A method currently used by doctors to screen for possible bre canc fails to detect canc in 15% of the women who actually have the disease. A new method has been developed that researchers hope will be able to detect canc more accurately. A random sample of 70 women known to have br canc were screened using the new method. Of these, the new method failed to detect can in six.
A. Specify the null and alternative hypothesis that the researchers wish to test.
B. Is the sample large enough

Answers

Step-by-step explanation:

1.sample size n = 70

X = 6

We calculate the sample proportion

P^ = 6/70

= 0.0857

The population proportion = 15 percent

P = 15/ 100

= 0.15

The question says we should specify the hypothesis

Null hypothesis

H0: p = 0.15

Alternative

H1: P < 0.15

2.

The sample size is 70 and therefore large enough

NEED HELP I SUCK AT GEOMETRY (OFFERING 100POINTS)!!! best answer get brainlest

Can you prove the triangles below are congruent? Explain why or why not.

Answers

Answer: This is kinda confusing but I would say no

Step-by-step explanation: Because they would be congruent if the little line in JKD is in the middle of JK  instead of KD.

Answer:

The traingles are not congruent.

Step-by-step explanation:

ang A=ang J

ang L=ang K

LA=KD

So, u must have thaught that the triangles are congruent by ASA. But it's not true.

The Angle-Side-Angle criterion states that the two triangles can only be congruent if two angles and the included side of one triangle are equal to the corresponding two angles and the included side of the other triangle.

But here, the LA is the included side but KD is not. In order to be congruent, LA must congruent to KJ of ∆JKD.

I need help. q – 12 = 1

Answers

Answer:

q=13

Step-by-step explanation:

Given q - 12 = 1

we need to find q

to do so we need to isolate the variable using inverse operations

so to get rid of the 12 we add 12 but whatever we do to one side we do to the other

so we add 12 to each side

-12+12 cancels our

1+12=13

we're left with

q=13

Amy is attending physical therapy after knee surgery. She walked 6 1/4 miles over 3 days. How many miles is this per
day? (Simplify the answer and write it as a mixed number)

Answers

Answer:

Step-by-step explanation:

2 1/12 miles per day

The number of miles Amy walked per day is given by the equation

A = 2 1/12 miles

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

The total number of miles walked by Amy = 6 1/4 miles

The total number of miles walked by Amy = 25/4 miles

And , the number of days = 3 days

So , the number of miles per day A = total number of miles walked by Amy / number of days

Substituting the values in the equation , we get

The number of miles per day A = ( 25/4 ) / 3

The number of miles per day A = 25/12

The number of miles per day A = 2 1/12 miles

Hence , the equation is A = 2 1/12 miles

To learn more about equations click :

https://brainly.com/question/19297665

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Which function below is a quadratic shifted left 2 and down 5?
A
f(x) = (x - 5)2 - 2
B.
f(x) = 2(x - 5)2
С
f(x) = (x + 2)2-5
D
f(x) = (x - 2)2 - 5

Answers

Answer: C: f(x)=(x+2)2-5

Step-by-step explanation:

Answer: c

Step-by-step explanation:

:)

Consider the two functions below which one of these functions in the line year what is its equation answer any answer totwo decimal places

Answers

Answer:

The thing u pasted is glitched and isn't loading

Step-by-step explanation:

WILL MARK BRAINLEST AND THANKS Area: 28.67 sq m and the side is 4.7 m The missing side length is equal to:??? m

Answers

Answer:

The area of this is 28.67 meters squared

Step-by-step explanation:

You must use division in order to complete the question

the missing side length is equal to 6.1 ! to find the answer you take the area and divide it by the side you know (4.7)

an ice cream company made 38 batches of ice cream in 7.6 hours. assuming A CONSTANT RATE OF PRODUCTION, AT WHAT RATE IN HOURS PER BATCHWAS THE ICE CREAM MADE. (hours per batch)

Answers

Answer:

5 batches per hour

Step-by-step explanation:

How many zeros does the equation
7x^4 - 63x^3 -29x^2+10x+15 have?

Answers

Answer:

1

Step-by-step explanation:

X = y-2
2x-y=2

X=
Y=

Answers

Answer:

y =4 and x=6 hope it may help u

Find the area of the polygon 2cm 2cm 3cm in square centimeters​

Answers

Answer:

12sq cm

Step-by-step explanation:

For Area, we do lenth x width x height. Here, the lenth and the width is 2, so we do 2x2 which is 4. Next the height is 3 so we do 4x3 which is 12. There is your answer. Hope it helps!

Kevin can walk 14 miles in 5 hours. How far can he walk in 3 1/2 hours?

Answers

Step-by-step explanation:

If he can walk 14 miles in 5 hours, take 14÷5 to find out how long he can walk in 1 hour. (2.8)

Then take 2.8 miles times 3.5 hours is 9.8 miles

answer the questions, please I will give you 10 points

Answers

A) 3 times 7x makes it a normal number of 21.
B) using PEMDAS you must multiply 5 times 5 to put 5 to its own power, then multiply by 2 to get 50, then add 4 getting 54.
C) 9 times 5y gets the normal number of 45, then subtract that from 80, you get 35.

In the United States Constitution, the principle of popular sovereignty holds that in diridod hoturn the national and state governments .​

Answers

Answer:

your answer should be J

Step-by-step explanation:

as popular sovereignty is defined as the majority of a group however large agreeing on a common answer or cause

so accordingly your answer should be J as the election process relies almost solely on popular sovereignty

I hope this helped!

What is the lowest term of 75/60 as an improper fraction?

Answers

75/60 = 15/12 = 5/4. This is the lowest term

Answer:

The lowest term 75/60 as an improper fraction is 5/4.

Please help due soon.

Answers

Answer:

He should give his sister 41.50 dollars.

Step-by-step explanation:

41.50 dollars he should give

The relationship between the height of a tree and the time snice the tree was planted?

Answers

Answer:

Answer: It´s correlated. Step-by-step explanation: The graph shows that the height of the tree increases as time passes, meaning that the more time that a three has been planted the more height it has, so there´s a direct correlation between the time passing and the height of the tree.

Select all the statements that describe a unit rate. You must select all of the correct ones to receive credit.



a
Pete sold 1 poster.
b
Michael drives 50 miles in 1 hour.
c
Karen paid $10 for each pizza.
d
Jared bought 4 shirts and 1 hat.
e
Elizabeth earned 5 points for every correct test question.
f
Kelly climbed 50 stairs.

Answers

The answer are b,c, and f

WILL MARK! please help:)
Find x and y so that ABCD will be a parallelogram.

Answers

Answer:

The answer is the first one; x = 6 y =42

Find the value of x.
65°
127°
35°
to

Answers

x Seems To Be An Obtuse Angle So The Answer Should Be 127°
looking at this picture i’d say 127°

Select the correct answer from each drop-down menu.
A cylinder has a diameter of 10 units.
Its radius is
units. If its height is twice its radius, its height is
units. Its volume is about
cubic units

Answers

Radius = 5 units
Height = 10 units
Volume = 785.4 units

Answer:

1st blank: 5

2nd blank: 10

3rd blank: 785

Step-by-step explanation:

the radius of a circle or the base/top of a cylinder is measured from the center to the side of the face, where as the diameter is measured from side to side through the middle, so the diameter will always be twice the radius of the same circle, meaning if the diameter is 10 units, then the radius will be half that, 5 units, then all we do is double the radius like the question says to get the height (NOTE this is NOT part of any formula for finding any dimensions for any shape and is specific to this question) then all we do to find the volume is use the formula below

V = (pi) (r^2) h

plug the radius or 'r' in as well as height or 'h' in the equation and solve

PLEASE NOTE: the question is asking for an APROXAMATE so your answer should be close to one of the drop down options by about >1 integer, but will not be exact

Find the value of SU

Answers

Answer:

A

Step-by-step explanation:

yw

MovieMania, an online movie rental website charges a one-time fee of $6.85 and $2.99 Per movie rental. Let m represent the number of movies you watch and let C represent the total cost to watch the movies. write an equation that relates the total cost to the numbers of movies you watch from MovieMania

Answers

Answer:

C=6.85+2.99m, where:

C is the total cost to watch the movies

m is the number of movies you watch

Step-by-step explanation:

From the information provided, you can say that the total cost to watch the movies would be equal to the one-time fee plus the result of multiplying the price per movie for the number of movies you watch, which can be expressed as:

C=6.85+2.99m, where:

C is the total cost to watch the movies

m is the number of movies you watch

thank you to whoever helps

Answers

(3,1) would be the right answer

This Question: 1 pt
Determine whether the variation between the indicated quantities is direct or inverse.
The time required to defrost a frozen hamburger in a room and the temperature of the room.
Choose the correct answer below.
Inverse
Direct

Answers

Answer:

Inverse variation

Step-by-step explanation:

Required

What type of variation is described in the question

From the question, we understand that: the relationship is between time and temperature

The higher the time, the lower the temperature of the hamburger (to get freeze).

Hence, the relationship is an inverse variation.

I dont understand the first 4

Answers

Answer:

Let me see what i can do, I'll try. Hope this helps

siny dy/dx=cosy (1-xcosy)

Answers

Step-by-step explanation:

hope it helpe...............

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