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
Vaselesa [24]
3 years ago
8

PLZZ HELP What is the solution to: y=-2x+7 and y=3x+2?

Mathematics
2 answers:
Anit [1.1K]3 years ago
4 0
Please see the pic, I'd solved in it.

Ksenya-84 [330]3 years ago
3 0
Equations, shows complete work {y=-2x-7;y=-3x<span>-9} so that you understand better.</span>
You might be interested in
767 runners entered a race. 305 more entered before the race started. How many runners are in the race? A 1072​
boyakko [2]
1072 is the answer duh
4 0
3 years ago
Need help on numbers 10 and 11 please!! sos
Harlamova29_29 [7]
Volume of prism B=800*6³/8³
=800*27/64
=25*27/2
=575/2
=287.5 cm³
5 0
3 years ago
To express the polynomial d^2+d^3-d+3 in standard form, which term should be written first?
ozzi
When you want to write a polynomial, you should write the term with the highest degree first.
Here, it should go like this: d^3 + d^2 - d + 3
This means that the term which should be written first is the cubic term. 
6 0
3 years ago
Read 2 more answers
Need help ASAP!!! Only have one hour please help
rjkz [21]

Answer:

the answer is 28°

Step-by-step explanation:

opposite angles or vertical angles because the 2 lines intersect each other.

3 0
3 years ago
Read 2 more answers
Two streams flow into a reservoir. Let X and Y be two continuous random variables representing the flow of each stream with join
zlopas [31]

Answer:

c = 0.165

Step-by-step explanation:

Given:

f(x, y) = cx y(1 + y) for 0 ≤ x ≤ 3 and 0 ≤ y ≤ 3,

f(x, y) = 0 otherwise.

Required:

The value of c

To find the value of c, we make use of the property of a joint probability distribution function which states that

\int\limits^a_b \int\limits^a_b {f(x,y)} \, dy \, dx  = 1

where a and b represent -infinity to +infinity (in other words, the bound of the distribution)

By substituting cx y(1 + y) for f(x, y)  and replacing a and b with their respective values, we have

\int\limits^3_0 \int\limits^3_0 {cxy(1+y)} \, dy \, dx  = 1

Since c is a constant, we can bring it out of the integral sign; to give us

c\int\limits^3_0 \int\limits^3_0 {xy(1+y)} \, dy \, dx  = 1

Open the bracket

c\int\limits^3_0 \int\limits^3_0 {xy+xy^{2} } \, dy \, dx  = 1

Integrate with respect to y

c\int\limits^3_0 {\frac{xy^{2}}{2}  +\frac{xy^{3}}{3} } \, dx (0,3}) = 1

Substitute 0 and 3 for y

c\int\limits^3_0 {(\frac{x* 3^{2}}{2}  +\frac{x * 3^{3}}{3} ) - (\frac{x* 0^{2}}{2}  +\frac{x * 0^{3}}{3})} \, dx = 1

c\int\limits^3_0 {(\frac{x* 9}{2}  +\frac{x * 27}{3} ) - (0  +0) \, dx = 1

c\int\limits^3_0 {(\frac{9x}{2}  +\frac{27x}{3} )  \, dx = 1

Add fraction

c\int\limits^3_0 {(\frac{27x + 54x}{6})  \, dx = 1

c\int\limits^3_0 {\frac{81x}{6}  \, dx = 1

Rewrite;

c\int\limits^3_0 (81x * \frac{1}{6})  \, dx = 1

The \frac{1}{6} is a constant, so it can be removed from the integral sign to give

c * \frac{1}{6}\int\limits^3_0 (81x )  \, dx = 1

\frac{c}{6}\int\limits^3_0 (81x )  \, dx = 1

Integrate with respect to x

\frac{c}{6} *  \frac{81x^{2}}{2}   (0,3)  = 1

Substitute 0 and 3 for x

\frac{c}{6} *  \frac{81 * 3^{2} - 81 * 0^{2}}{2}    = 1

\frac{c}{6} *  \frac{81 * 9 - 0}{2}    = 1

\frac{c}{6} *  \frac{729}{2}    = 1

\frac{729c}{12}    = 1

Multiply both sides by \frac{12}{729}

c    =  \frac{12}{729}

c    =  0.0165 (Approximately)

8 0
3 years ago
Other questions:
  • HELPPPPPPPPP STATTTSSSSS
    8·2 answers
  • Please help asap! I don’t really understand
    5·1 answer
  • Virginia tossed a coin and it landed heads up three times in a row. What is the probability that this same coin will land heads
    10·1 answer
  • Please help me with answer I need help
    14·2 answers
  • Maël mixes 151515 milliliters (\text{mL})(mL)left parenthesis, start text, m, L, end text, right parenthesis of bleach with 3.75
    14·1 answer
  • A bag has 6 red marbles, 5 blue
    13·1 answer
  • Helppppppppppppp meeeeee
    7·1 answer
  • You ate 1/6 of a pizza and your brother eats 5/8 of the pizza .How much did your brother eat compared to you
    8·1 answer
  • M
    8·1 answer
  • This is from Khan academy I have to attach a PNG if you can help me solve it! Thank you!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!