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
nirvana33 [79]
3 years ago
11

Will choose brainliest and 12 points

Mathematics
1 answer:
sveta [45]3 years ago
7 0
The answer is equation 2 as it expands to 0=0
You might be interested in
line j is perpendicular to lines m and n. if the products of the slope of all three lines is -8, what is the slope of line j?
jeka94

Answer:

the slope of line j is -1/8, the slope of lines m and n are both 8.

Explanation step by step:

Suppose j is the slope of line j, m the slope of line m and n the slope of line n. Since:

1. line j is perpendicular of line m, so j*m= -1

2. J is perpendicular of line n, so  j*n=-1

3. m and n and parallel so m=n

As we want to know the slope of j we clear the equations presented to us in order to find it.

(1) m* n* j = -8, since n=m we have  n^{2}* j = -8.

we clear j; n^{2} * j = -8 \\ j =\frac{-8}{n^{2} }

replacing in the equation n*j = -1 we get

n*(-8/n^2) = -1. Thus n = 8. Since j = -1/n = -1/8.

7 0
3 years ago
Mr. Smith baked 144 blueberry pies, some strawberry pies, and some apple pies. The number of apple pies is 4\5 of the number of
Leviafan [203]
B = 144
a = 4/5s
s = a + 24

s = 4/5s + 24
5/5s - 4/5s = 24
1/5s = 24
s = 24 * 5
s = 120

a = 4/5s
a = 4/5(120)
a = 480/5
a = 96

blueberry pies = 144
total of all pies = 144 + 120 + 96 = 360

percent of blueberry pies is : 144/360 = 0.40 = 40% <==

6 0
3 years ago
Read 2 more answers
A hot air balloon holds 1,592 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic
yuradex [85]

Answer: 285.2 kg

Step-by-step explanation:

Given

The volume of helium in the balloon is V=1592\ m^3

The density of the helium is \rho =0.1785\ kg/m^3

Mass of the helium gas is given by the product of density and volume

\Rightarrow M=\rho \cdot V\\\Rightarrow M=0.1785\times 1592\\\Rightarrow M=285.2\ kg

Thus, the mass of gas is 285.2 kg

3 0
3 years ago
In order to receive a B in Biology class, Michael must have an average score of at least 82 on 5 tests. So far, he has made 88,
marysya [2.9K]

Answer:

c

Step-by-step explanation:

7 0
2 years ago
An urn contains three red balls, five white balls, and two black balls. Four balls are drawn from the urn at random without repl
Nana76 [90]

Answer:

0

Step-by-step explanation:

total number of balls = 3+5+2= 10

Probability of getting red P(R) = 3/10

Probability of getting white P(W) = 5/10

Probability of getting black P(B) = 2/10

for each red ball drawn you win $6 and for each black ball drawn you loose $9 dollars

E(X)= 6×3/10 +0×5/10 -9×2/10= 0

E(X)= 0

8 0
3 years ago
Other questions:
  • Which Numbers are listed from least to greatest : A : 300, 0, - 200, - 250, or B : - 250, - 200, 0, 300 or C : 0, - 200, - 250,
    11·2 answers
  • resha earned $26 babysitting for 4 hours yesterday if she earns the same hourly rate how much will she earn for babysitting for
    7·2 answers
  • Which of these numbers have 8 as a factor
    5·1 answer
  • A square has an area of 25 cm2. if its perimeter increases by 4 cm, what is its area?
    8·1 answer
  • Help me plz and thank you
    15·1 answer
  • Which expression is equivalent to 5 x + 10 y minus 15?
    8·2 answers
  • What is the discriminant of the quadratic equation<br>7x^2-4x+5=0​
    9·2 answers
  • P:-3x + 8x - 5x = x<br><br> q: (3x)(5y) = 15xy<br><br> Which of the following statements is false?
    12·1 answer
  • Evaluate the expression for r = 14.
    5·1 answer
  • Select the shapes that are similar to shape A
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!