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2 years ago

Which of the following is a solution to the equation:

Mathematics

1 answer:

timama [110]2 years ago

5 0

Step-by-step explanation:

The answer is the third one where x=6 and y= -4

Explanation:

Replace x and y with 6 and -4, so it becomes

2(6) = -5(-4) - 8

Then solve. 2×6 is 12 and -5×(-4) is 20, since two negatives make a positive. Then bring down -8

12 = 20 - 8

12 = 12

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Which equations matches the graph

iren2701 [21]

The answer for the question is C

7 0

3 years ago

Multiply the following complex numbers: (-7+ ) and ( + i). Show all work and explain the steps you are taking in the work.

notka56 [123]

Answer:

Step-by-step explanation:

in complex number land there are two distict parts real.. the first number and imaginary.. the second number with the i

if your problem really only has a 7 and an i in it.. then it looks like below

7 * i = 7i

but..I suspect you just left out a bit of the problem.. repost .. i'll answer it again if the problem is different that what you posted already :)

8 0

2 years ago

a minivan is rated for maximum carrying capacity of 900lbs. if the luggage weighs 100lbs what is the maximum weight allowable fo

Katarina [22]

900 - 100 = 800

so the maximum weight allowable for passengers is 800lbs

I hope this helps! :)

~Ayden

6 0

2 years ago

Read 2 more answers

Identify the inverse of the following.

posledela

Answer:

$f^{-1}(x)=\sqrt{\frac{1}{8}(-x+4)}$

Step-by-step explanation:

Given function is,

f(x) = -8x² + 4

Step to find the inverse of the function,

Step 1

Write the function in the form of an equation,

y = -8x² + 4

Step 2

Interchange the variables 'x' and 'y',

x = -8y² + 4

Step 3

Solve the equation for y,

x = -8y² + 4

x - 4 = -8y²

-x + 4 = 8y²

y² = $\frac{1}{8}(-x+4)$

$y=\sqrt{\frac{1}{8}(-x+4)}$

Therefore, inverse of the function f(x) will be,

$f^{-1}(x)=\sqrt{\frac{1}{8}(-x+4)}$

3 0

2 years ago

A high-speed bullet train travel 900 feet in 5 seconds at this rate how far would it travel in 1 minute

iragen [17]

Since there are 60 seconds in one minute, we can form the equation:
$900 \div 5 = x \div 60$
From here, we can cross multiply.
$5x = 54000$
$x = 10800$
The train would travel 10,800 feet in one minute.

5 0

3 years ago