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3 years ago

Which ordered pairs in the form (x, y) are solutions to the equation

Mathematics

1 answer:

Ann [662]3 years ago

4 0

Answer:

A, D

Step-by-step explanation:

Sub the x and y values into the equation. The x value is the first number in the coordinate, and the y value is the second number.

If the left side is equal to the right side, it is a solution.

Example:

4x-5y=24

4(-9)-5(-12)=24

-36+60=24

24=24

Remember: if the left side does not equal the right side, it is not a solution.

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Evaluate the expression when z = 8.<br> 6z

katovenus [111]

Answer:

$48$

Step-by-step explanation:

Our expression:

$6z$

If we know $z=8$ , let's substitute $z$ , for $8$ , in our expression:

$6(8)$

Multiply:

$6(8)=48$

6 0

4 years ago

Troy took out an 80/20 mortgage to buy a house costing $100,000. The first (80%) mortgage has an interest rate of 4.75%, The sec

tekilochka [14]

Answer:

$557.51

Step-by-step explanation:

A financial calculator tells you the payments are ...

on $80,000 at 4.75%: $417.32

on $20,000 at 7.525%: $140.19

Then the total monthly payment is ...

$417.32 +140.19 = $557.51

_____

You can use the amortization formula to find the payment (A) on principal P at interest rate r for t years to be ...

A = P(r/12)/(1 -(1+r/12)^(-12t))

I find it takes fewer keystrokes to enter the numbers into a financial calculator. Both give the same result.

7 0

3 years ago

100 POINTS FOR WHO EVER SHOWS THE WORKS AND ANSWERS CORRECTLY. LEGIT 4 QUETIONS BUT MUST SHOW WORK!!

m_a_m_a [10]

Answer:

See below

Step-by-step explanation:

1 . Missing angle

Sum of interior angles in the triangle = 180°

180° - (105° + 29°) = 36°

2. Angle 1

Angle 1 is exterior angle of the triangle
Angle 1 = 55° + 78° = 133°

3. Angle 2

Angle 2 = 180° - (55° = 78°) = 47°

4. The sum of exterior angle and adjacent interior angle equals 180°

If they are equal, then each will measure 180°/2 = 90°

So it is possible with the right triangle

4 0

3 years ago

Read 2 more answers

Please answer ASAP for 5 stars and brainliest

lawyer [7]

Answer is in the attached figure.

5 0

3 years ago

Read 2 more answers

Your company offers warranty coverage for MP3 players. The policy provides for the replacement of MP3 players that fail within 3

Finger [1]

Answer:

181 MP3 players

Step-by-step explanation:

Given data:

Replacement of MP3 that fail within 3 years

expected lifetime of MP3 = 5 years

number of MP3 players purchased = 1000

number of MP3 players replaced in the first year = ?

To determine the number of MP3 replaced in the first year we will employ this formula:

$E(To) = \frac{1}{u} = e_{x} ^{0} =\int\limits^a_0 {po} \, dt$

a = ∞

since the given problem is an exponential distribution

1/u = 5 hence u = 0.2

next we will determine the number of MP3's to fail in its first year of purchase

qo = failure

po = success

number of purchase = 1000

attached below is the remaining part of the solution

7 0

3 years ago