1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhannawk [14.2K]
3 years ago
11

2 ALGEBRA 1 QUESTIONS HELP!!!

Mathematics
1 answer:
nikklg [1K]3 years ago
3 0
4)
3x-2y=10
5x+y=4

We solve this system of equation by elimination method.
   3x-2y=10
2(5x+y=4)
------------------------
13x=18

Answer: A)  13x=18

5)
slope-intercept form:
y=mx+b
y=f(x)

m=slope
b=y-intercept

1) we calculate the slope:
we choose any two points of this table:
For example: (2,2) and (3,4)

Given two points (x₁,y₁) and (x₂,y₂) the slope of the line that passes through these points will be:
m=(y₂-y₁)/(x₂-x₁)
In this case:
m=(4-2)/(3-2)=2

2) we compute "b";
we choose an any point of this talbe:
For example: (4,6), and we substitute "x" for "4" and "y" for "6" in the next equation:
y=2x+b  
6=2(4)+b
b=6-8
b=-2

3) we build the function that it belong this table:
m=2
b=-2
f(x)=mx+b
f(x)=2x-2

Answer: B) f(x)=2x-2

You might be interested in
A customer gives you a $100 bill for a purchase that totals $22.75. What is the best money combination to give the $77.25 to the
Alinara [238K]
3, 20 bills 60 dollars add 1, 10 bill to get to 70 dollars add 1, 5 bill you get 75 dollars add 2,1 bills to get 77 dollars finaly 1 quarter to get 77 dollars and 25 cents

4 0
3 years ago
Read 2 more answers
Solve the equation on the interval [0,2pi] 5sec(x)+7=-3
vovangra [49]

Answer:

Hello,

x\in \bigg\{\dfrac{2\pi}{3} ,\dfrac{4\pi}{3}\bigg\}\\

Step-by-step explanation:

5*sec(x)+7=-3\\\\sec(x)=\dfrac{-10}{5} \\\\\dfrac{1}{cos(x)} =-2\\\\cos(x)=-\dfrac{1}{2} \\\\x=120^o\ or\ x=240^o\\

8 0
2 years ago
Read 2 more answers
Angle K and angle L are complementary angles. If angle k = (3x + 3)" and angle k= (10x - 4)". find the
soldier1979 [14.2K]

Answer:

3X+3+10X-4=90

13X-1=90

13X=91

X=91/13=7

<K=10X7-4

70-4

<K=66(SUM OF COMPLEMENTARY ANGLE =90)

<K=24

5 0
3 years ago
Whitch of the following is closest to 8 62 61 65 66
Natasha2012 [34]

Answer:

If the question is which is closest to 8, the answer is 61

Step-by-step explanation:

6 0
2 years ago
A couple of college students frustrated with the current class registration process decide to survey 500 random students on camp
aleksklad [387]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Standard deviation = \sqrt{(n*p)(1 - p)}

Substitute the values in:

\sqrt{(500 *0.84)(1-0.84)} = 8.1975...

This can be rounded to give an approximate answer of 8.2

The answer is option A.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

8 0
3 years ago
Other questions:
  • Which rational number is one tick mark to the left of -3/4
    7·1 answer
  • What is 5c-3d-12c+d in simplest form
    6·1 answer
  • In the figure angle G measures 102° and angle B measures 30° what is the measurement of angle B
    10·2 answers
  • 4x - y = 6 and 2x - y/2 =4
    5·1 answer
  • The athletic club at school sold raffle tickets to raise money for equipment. The club sold a total of 1050 tickets,515 to teach
    11·1 answer
  • Plz answer it fast urgent
    13·1 answer
  • 5
    11·1 answer
  • Idk what to do can someone help?
    13·1 answer
  • Simplify each expression by writing the expression without absolute value bars
    11·1 answer
  • A fish swins 12 miles upstream in 4 hours. The return trip only takes 3 hours. Find the rate of the current
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!