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3 years ago

What are the y-intercept and x-intercept of 9x-7y=-63

Mathematics

1 answer:

Verdich [7]3 years ago

6 0

X Intercepts - (-7,0)
Y Intercepts - (0,9)

Hope this helps!

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The exchange rate at the post office is £1 = €1.17. How many euros do I get for £280?

lidiya [134]

Answer:

327.21 euros.

Step-by-step explanation:

5 0

3 years ago

8. Combine the like terms in this expression: –3x + 2xy + 4y – xy + 2x – 11y

luda_lava [24]

Answer:

D. –X+XY–7y

Step-by-step explanation:

We just have to combine (add) the similar terms... so all terms that have an x in them for example.

–3x + 2xy + 4y – xy + 2x – 11y

Let's first re-write it placing similar terms next to each other

(-3x + 2x) + (2xy - xy) + (4y - 11y)

Then we sum them up, for each similar terms

1x + 1xy -7y

so, x + xy -7y

Answer D.

6 0

3 years ago

kayla took $36.75 to the state fair. each ticket in the fair cost x dollars. kayla bought 3 tickets. write an expression that re

Gennadij [26K]

F(x)=y=the amount of money, in dollars , that Kad had after she bought the tickets.
x=price of one ticket

f(x)=-3x+36.75 or y=-3x+36.75

7 0

3 years ago

Some help please? Which polynomial represents the difference below?

Helga [31]

So the right answer is of option D.

Look at the attached picture⤴

Hope it will help u...

4 0

3 years ago

Read 2 more answers

Nick bought a new car.

ira [324]

Using an exponential function, it is found that it takes 5.42 years for the car to halve in value.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

$A(t) = A(0)(1 - r)^t$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

In this problem, the car depreciates 12% a year in value, hence r = 0.12 and the equation is given by:

$A(t) = A(0)(0.88)^t$ .

It halves in value at t years, for which A(t) = 0.5A(0), hence:

$A(t) = A(0)(0.88)^t$

$0.5A(0) = A(0)(0.88)^t$

$(0.88)^t = 0.5$

$\log{(0.88)^t} = \log{0.5}$

$t\log{0.88} = \log{0.5}$

$t = \frac{\log{0.5}}{\log{0.88}}$

t = 5.42.

It takes 5.42 years for the car to halve in value.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

9 0

2 years ago