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
Maksim231197 [3]
3 years ago
9

Can somebody help me with this question

Mathematics
2 answers:
frosja888 [35]3 years ago
8 0
A solution is when the two lines intersect, when they have the same (x,y) point.  So we can say y=y which is the same as saying:

2x-15=5x

-3x-15=0

-3x=15

x=-5, now use either to solve for the y coordinate...y=5x becomes:

y=5(-5)=-25 so the solution is the point:

(-5, -25)
Alexus [3.1K]3 years ago
3 0
We start with:

y=2x-15
y=5x

Now, we have a perfectly set-up variable we can get rid of: <em>y.</em>

But we need to make either the top or bottom equation negative, so for simplicity, let's make the bottom one negative.

y=2x-15
(-y)=(-5x)

Now simplify.

-3x-15=0

Add 3x on both sides.

3x=15

Divide by 3 on both sides.

x=5



You might be interested in
What is 25+30 pleas help me
olganol [36]
Your answer would be 55
3 0
3 years ago
Pre-Calc: Find all the zeros of the function.
uysha [10]

The zeros of the polynomial function are y = 4/5, y = -4/5 and y = ±4/5√i and the polynomial as a product of the linear factors is f(y) = (5y - 4)(5y + 4)(25y^2 + 16)

<h3>What are polynomial expressions?</h3>

Polynomial expressions are mathematical statements that are represented by variables, coefficients and operators

<h3>How to determine the zeros of the polynomial?</h3>

The polynomial equation is given as

f(y) = 625y^4 - 256

Express the terms as an exponent of 4

So, we have

f(y) = (5y)^4 - 4^4

Express the terms as an exponent of 2

So, we have

f(y) = (25y^2)^2 - 16^2

Apply the difference of two squares

So, we have

f(y) = (25y^2 - 16)(25y^2 + 16)

Apply the difference of two squares

So, we have

f(y) = (5y - 4)(5y + 4)(25y^2 + 16)

Set the equation to 0

So, we have

(5y - 4)(5y + 4)(25y^2 + 16) = 0

Expand the equation

So, we have

5y - 4 = 0, 5y + 4 = 0 and 25y^2 + 16 = 0

This gives

5y = 4, 5y = -4 and 25y^2 = -16

Solve the factors of the equation

So, we have

y = 4/5, y = -4/5 and y = ±4/5√i

Hence, the zeros of the polynomial function are y = 4/5, y = -4/5 and y = ±4/5√i

How to write the polynomial as a product of the linear factors?

In (a), we have

The polynomial equation is given as

f(y) = 625y^4 - 256

Express the terms as an exponent of 4

So, we have

f(y) = (5y)^4 - 4^4

Express the terms as an exponent of 2

So, we have

f(y) = (25y^2)^2 - 16^2

Apply the difference of two squares

So, we have

f(y) = (25y^2 - 16)(25y^2 + 16)

Apply the difference of two squares

So, we have

f(y) = (5y - 4)(5y + 4)(25y^2 + 16)

Hence, the polynomial as a product of the linear factors is f(y) = (5y - 4)(5y + 4)(25y^2 + 16)

Read more about polynomial at

brainly.com/question/17517586

#SPJ1

5 0
1 year ago
Joe has an ice cream stand. last week he spent $85 for ice cream and supplies. he earned $125. what was his profit?
Elodia [21]

Answer:

40 dollars

Step-by-step explanation:

Profit is what he earned minus his costs

Profit = 125 -85

Profit = 40

3 0
2 years ago
If Harriet rolls the number cube 39 times how many times can she expect to roll a 3 or 4?
Damm [24]
Two out of thirty nine hope this helped 
4 0
3 years ago
Read 2 more answers
What's the answer to. 2472 ÷ 24
vladimir2022 [97]

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

if it's .2472/24 it is = .0103

but if it's 2472/24 it is = 103

5 0
3 years ago
Other questions:
  • In a recent national survey, the mean price for a 2000 sq ft home in Florida is $240,000 with a standard deviation of $16,000. T
    5·1 answer
  • The Storm roller coaster climbs to a height of 180 feet. The Snake roller coaster climbs to a height of 105 feet. How much highe
    14·2 answers
  • A line passes through the points (8, –1) and (–4, 2).
    11·2 answers
  • Suppose f is a function and f(1) = 3. In addition suppose that, as x goes from 1 to 4, the average rate of change of f is – 6. I
    5·1 answer
  • Jimmy can oil the lanes in a bowling alley in eight hours. Perry can oil the same lanes in nine hours. How long would it take th
    15·1 answer
  • Ralph and his brother are at a carnival. They separate from each other at the Ferris wheel at 1:00 PM, and they agree that they
    14·2 answers
  • Write all the values of p for which the quadratic equation x2 +px+16=0 has equal roots. Find the roots of the equation so obtain
    11·1 answer
  • A woman a walked 12km at 3km/hr and cycled 18km at 9km/hr. what is her average speed for the whole journey.​
    11·1 answer
  • Match the following sentences on the left with their algebraic expression on the right.
    15·2 answers
  • Justin spends $15 at the grocery store. He buys a loaf of bread for $3 and buys 112 pounds of cheese. What is the price per poun
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!