a + b = 10
a - b =2
solve the systems of equations

Answers

Answer 1

Answer:

a=6, b=4.

Step-by-step explanation:

6+4=10, and 6-4=2.

Answer 2

Answer:

See below

Step-by-step explanation:

a+b =10

a-b = 2    add the two equations

2a = 12     then a = 6      a+b=10 so b = 4


Related Questions

Please help me please

Answers

Answer:

The coordinates of point F would be: (x, y) = (8.2, 5.7)

Step-by-step explanation:

We know that the location of a point P on a coordinate plane can be determined by checking the value of the x-coordinate and the corresponding y-coordinate.

In other words, the location of a point P with the x-coordinate and the corresponding y-coordinate will be: P(x, y)

Using the same concept, we can determine the coordinates of point F.

The location of point 'F' lies on the x = 8.2 (x-coordinate) and their corresponding value of y=5.7 (y-coordinate).

i.e at x = 8.2, y = 5.7

Thus, the coordinates of point F would be: (x, y) = (8.2, 5.7)

Simplify
2(10) + 2(x – 4)

Answers

Answer: 2x+12

Step-by-step explanation:

2(10)+2(x-4)

20+2x-8

12+2x

Answer: 2x + 12 i believe is the answer.

Describe how to determine the average rate of change between x = 2 and x = 4 for the function f(x) = 2x3 + 1. Include the average rate of change in your answer. (10 points)

Answers

Answer: 90

Step-by-step explanation:

670183

what is 30 percent of 210​

Answers

Answer:

63

Step-by-step explanation:

why would you delete someones answer when theyre trying to help you lol

Sorry I don’t get this-

Answers

Answer:

for 2 you add all the numbers

for 3 you add all the numbers

for 4 you add all the numbers

Step-by-step explanation:

Joe Casey, the star of the Placer County All-Star baseball team, has hit 11 home runs in the team's first thirty games. If he continues this pace how many home runs will he hit in a 162 game season? How many home runs is he expected to hit?

Answers

Answer: 59.4

Step-by-step explanation:

We can solve this by using direct proportion where y = kx

y = number of games

x = number of home runs

k = constant of proportionality

Since y = kx

30 = 11k

k = 30/11

The home runs will he hit in a 162 game season will then be:

= 162 ÷ 30/11

= 162 × 11/30

= 59.4

Answer:  59.4

Step-by-step explanation:

A college basketball game is 40 minutes long. Derrick’s favorite player participated for 60% of last week’s game. How many minutes did the player participate?

BE QUICK PLEASE :)

Answers

Answer:

24 minutes

Step-by-step explanation:

Answer:

I'm pretty sure its 24 minutes

please help this is due tmrw!​

Answers

Answer:

3 games per year

Step-by-step explanation:

rate of change is (Y1-Y2)/(X1-X2)

X1: 2012

Y1: 12

X2: 2014

Y2: 18

So: (12-18)/(2012-2014)=(-6)/(-2)=3

Question 28 i need a little assistance with the problem

Answers

We need to know about distance of a point from a line to solve the question. The distance of point (9,5) from the line 4x-3y=-4 is 5 units.

The distance between two points is calculated by taking square root of the sum of the squares of the difference between the coordinates of the two points. But for the distance between a point and a line we can't use this formula. To find the distance between a point and a line we take the shortest distance between them which is the perpendicular distance between the point and the line. The perpendicular distance is the length of the perpendicular dropped on the line from the point. Let the point (x_,y_) and the line be ax+by+c=0 then the formula for the distance between them is given by

[tex]d=\frac{|ax_+by_+c|}{\sqrt{a^{2} +b^{2} } }[/tex]

Here (x_,y_) is (9,5) and the line is 4x-3y=-4

The distance between the line and the point is :

[tex]d=\frac{|36-15+4|}{\sqrt{16+9} }=\frac{25}{5} =5[/tex]

Therefore we found out that the distance between the point (9,5) and the line 4x-3y=-4 is 5 units.

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PLEASE HELP NOW I NEED TO TURN IT IN TODAY AND GET A 100% !!!
#8 !!!

Answers

Step-by-step explanation:

=| -9/10|+|7/4|

=9/10 +7/4

[tex] = \frac{9}{10} + \frac{7}{4} \\ = \frac{53}{20} \\ [/tex]

Option B is the answer

yes or no??
math workk

Answers

Answer:

Yes, and if you need extra help try yay math

Step-by-step explanation:

5.
Write an equation of the line that passes through (4,−1) and is parallel to the line y=3x+7.

Answers

The equation of the line that passes through (4,−1) and is parallel to the line y=3x+7 will be y = 3x - 13.

What is an equation of the line?

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given that line that passes through (4,−1) and is parallel to the line y = 3x+7. If the line is parallel then the slope will be equal to the parallel line.

m = 3

The equation of the line will be written as,

y = 3x + c

The y-intercept will be calculated as,

y = 3x + c

-1 = ( 3 x 4) + c

c = -13

The equation will be,

y = 3x - 13

Therefore, the equation of the line that passes through (4,−1) and is parallel to the line y=3x+7 will be y = 3x - 13.

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what's the slope of the line shown

Answers

Answer:

i think it is 1

Step-by-step explanation:

The slope is 1/2

Slope =rise/run
Find a point where the line goes straight though it then go up and over to the next place the line intersects directly through a point.
I used (2,-2) went up 1 over 2 to the point (4,-1)

Hope that helped. :D

In what way was youth activism during the civil rights era the same as it is
today?
O A. People used popular culture to raise awareness,
O B. People participated in protests and marches.
C. People wanted social justice.
O
D. All of the above are correct.

Answers

It’s D which is all of above :(

The second term of an arithmetic sequence is -39. The rule a, = a -1 + 12 can be used to find the next term of the
sequence. What is the explicit rule for the arithmetic sequence?
a, = -51+12(n-1)
O a = -39+12(n-1)
O a, = 12+(-39)(n-1)
O a = 12+(-51)(n-1)

Answers

Answer:

A. an = -51+12(n-1)

Step-by-step explanation:

edge quiz

The solution is, the explicit rule for the arithmetic sequence is

a n = -51 + ( n - 1 ) · 12 .

What is Arithmetic progression?

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

The nth term of AP : a_n = a + (n – 1) × d

here, we have,

given that,

a 2 = -39

a 2 = a 1 + 12

- 39 = a 1 + 12

a 1 = - 39 - 12

a 1 = - 51 ( first term )

The common difference is : d = 12

The explicit rule for the arithmetic sequence:

a n = a1 + ( n - 1 ) d

a n = -51 + ( n - 1 ) · 12

Hence, The solution is, the explicit rule for the arithmetic sequence is

a n = -51 + ( n - 1 ) · 12 .

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Mrs. Taft keeps inventory of the copy paper in the school copier room. Nine weeks ago, there were 150 reams of copy paper in the room. Now, there are 85 reams left. Which of the following two expressions are equivalent to the average weekly change in the number of reams of copy paper in the copier room over this time period?
Choices: -9/65, 9/-65, 65/-9, -65/9 (the negative for this one applies to both numbers.) and -65/-9

Answers

Answer:

-9/65

Step-by-step explanation:

Which value completes the equation?
0 : 101 = 2.3
O A. 0.23
O B. 2.3
O C. 23
0 D. 230
PLEASE GET THIS RIGHT I HAVE IN F IN THIS CLASS PLSASE HELP

Answers

Answer:

C. 23

Hope your grade raises

Step-by-step explanation:

c

Find the equation of the line that passes through the given points. Write the equation in slope-intercept form.
(-2.7) and (-1,5)

Answers

Answer:

The equation in the slope-intercept form will be:

y = -2x + 3

Step-by-step explanation:

Given the points

(-2, 7)(-1, 5)

Finding the slope between the points

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-2,\:7\right),\:\left(x_2,\:y_2\right)=\left(-1,\:5\right)[/tex]

[tex]m=\frac{5-7}{-1-\left(-2\right)}[/tex]

[tex]m=-2[/tex]

We know that the slope-intercept of line equation is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept

substituting m = -2 and the point (-2, 7) to find the y-intercept 'b'

y = mx+b

7 = -2(-2) + b

7 = 4 + b

b = 7-4

b = 3

so the y-intercept = b = 3

substituting m = -2 and b = 3 in the slope-intercept form of line equation

y = mx+b

y = -2x + 3

Thus, the the equation in the slope-intercept form will be:

y = -2x + 3

50 pts!
If f(x) = 2x2 + 3, find f(3).

Answers

Answer:

probly f(x) = 7

Step-by-step explanation:

dk if I’m wrong

Answer:

x = 7

Step-by-step explanation:

FREE FOR-ALLHAVE FUN

Answers

Answer:

ThThaThanThanks

Step-by-step explanation:

Answer:

YAY FREE FOR ALL *starts headbanging*

Step-by-step explanation:

lol have a blessed day

Solve this inequality for X.
81 – 11: < 55
OA. 1 > 21
I < 113
OB.
Ос.
3
OD.
I< -21

Answers

Answer:

infinity

pick any answer, its a trick question, it says, SOLVE INEAQUALY

The graph of f passes through (-2,7) and is perpendicular to the line whose equation is x= -16.
The equation of the function is

Answers

Answer:

y = 7

Step-by-step explanation:

x = -16 is a vertical line.

All lines perpendicular to a vertical line are horizontal lines. All horizontal lines have a slope of 0

so m = 0,  y = 7, x = -2

y = mx + b

7 = 0(-2) + b

b = 7

so,

y = 0x + 7

y = 7

what is an another way to express 36 + 32

Answers

Answer:

Answer:- 68 your answer is here dear ☺️ please give me thanks for My answer mark me brainlist please

I WILL LITERALLY LOVE YOU THIS IS DUE TONIGHT PLEASEEE
Find the scale factor using the given scale drawings and measurements
below.
Scale Factor:
Actual = 3 cm
Scale Drawing = 5cm

Answers

Answer:

[tex]\frac{5}{3}[/tex]

Step-by-step explanation:

Scale factor: [tex]\frac{5}{3}[/tex]

7 cm
3 cm
A square has the same perimeter as the rectangle.
What is the side length of this square?
I

Answers

Answer:

20 is the perimeter

20÷4=5

each side of a square is 5cm

Step-by-step explanation:

Hope it helps!!!

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The map shows ancient and modern cities on the Indian subcontinent.

A map titled Ancient and Modern Cities on the Indian Subcontinent. A key shows Ancient Indian civilizations with yellow dots and Modern Indian cities with purple dots. There are groups of yellow dots near the western coast and along the Indus River. The modern Indian cities of Mumbai and Chennai are along the coastline with Kolkata and New Delhi near rivers.

How do the locations of ancient and modern Indian cities differ?

a Ancient cities developed only in inland regions, while modern cities developed along the coast.

b Ancient cities developed in mountains, while modern cities developed along the Ganges River.

c Ancient cities developed along the Arabian Sea, while modern cities developed mainly on the Bay of Bengal.

d Ancient cities developed mainly along the Indus River, while modern cities developed near different bodies of water.

Answers

C is your best friend for this question

in the diagram, AB is parallel to DE. Also, DE is drawn such that the length of DE is half the length of AB. If sin A=0.5, then what is sin E?​

Answers

Answer:

I got sin E = 0.5

Thus answer choice C being the correct choice

Hope this helps ;)

Step-by-step explanation:

For given diagram, sin(E) = 0.5

What is transversal?

"It is a line that passes through two lines in the same plane at two distinct points."

What are parallel lines?

"These are the lines in the plane that are at equal distance from each other and never meet."

For given question,

AB is parallel to DE.

We can observe that, the line segment AE is transversal.

So, ∠DEF and ∠FAB are alternate interior angles.

We know, when a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.

⇒ ∠FAB = ∠DEF

⇒ ∠A = ∠E

⇒ sin(A) = sin(E)

As, sin(A) = 0.5

⇒ sin(E) = 0.5

Therefore, sin(E) = 0.5

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What is the distance from the origin to point P graphed on the complex plane below?


A) (absolute value) 7

B) (absolute value) 29

C) 7

D) 29

Answers

I believe it’s A but I may be wrong

Answer:

A

Step-by-step explanation:

Complex plane most have avsolute value with small digits

Choose the best description for the real number 34 over 3

Answers

We need to know aut rational numbers to solve this problem. The correct answer is C, rational because it is a fraction.

Rational numbers are numbers that can be written as p/q where q is not equal to zero. In this question 34 over 3 can be written as a fraction, 34/3 where 3 is not equal to zero, so we can safely say that 34 over 3 is a rational number. Now for the reasoning part,

34/33= 11.333...

So we can see that the fraction 34/3 is a repeating decimal and not a terminating decimal. Repeating decimal is a decimal where the numbers after the decimal point keep repeating without an ending. Terminating decimal is a decimal in which the decimal terminates at one point. We can see that in this question 34/3 is not a terminating decimal.

Therefore we see that the best description for 34 over 3 is that it is a rational because it is a fraction.So option C is the correct answer.

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Your question was incomplete. Please refer below for the full content.

The question has 4 options that describe 34 over 3, which are:

A Irrational, because it is a fraction

B Irrational, because it is a repeating decimal

C Rational, because it is a fraction

D Rational, because it is a terminating decimal


Which equation can be used to solve for x in the following diagram?

Answers

Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

10x + 10 and 110 are vertical angles and are congruent, thus

10x + 10 = 110 → D

Subtract 10 from both sides

10x = 100 ( divide both sides by 10 )

x = 10

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