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3 years ago

Identify the type of regression that returns the equation y = x^2 + 7x - 15.

Mathematics

1 answer:

horrorfan [7]3 years ago

4 0

Answer:

B. quadratic

Step-by-step explanation:

The equation y=x^2+7x-15 is a quadratic equation. It might be the result of a quadratic regression.

_____

The descriptors "linear," "quadratic," "exponential," and "power" describe the sort of equation that is used to try to match the data. Quadratic regression returns a quadratic equation.

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Geometry Question: BK bisects angle ABC and M angle ABK=28.3 degrees. Find M angle KBC and M angle ABC.

GarryVolchara [31]

Answer:

$KBC = 28.3$

$ABC = 56.6$

Step-by-step explanation:

Given

$ABK = 28.3$

Required

Determine KBC and ABC

Since BK bisects ABK, then

$KBC = ABK$

Substitute 28.3 for ABK

$KBC = 28.3$

Using same point as above

<em>Since BK bisects ABK, then</em>

$ABC = ABK + KBC$

$ABC = 28.3 + 28.3$

$ABC = 56.6$

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3 years ago

What are different ways to add two rational numbers and get a negative

makkiz [27]

If the sum is negative or if the signs are different and the negative has a biger absoulute value.

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4 years ago

What is 3.8 as a fraction

slava [35]

Fraction 19/5
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8 0

4 years ago

Read 2 more answers

Find the value of (64/25)^-1/2 Give your answer as fraction in its simplest form.

Elis [28]

Answer:

$\frac{5}{8}$

Step-by-step explanation:

$(\frac{64}{25})^{-\frac{1}{2} }$ has a negative, fractional indice; this negative sign in this context means to make the base fraction a reciprocal (flip it!):

$(\frac{25}{64})^{\frac{1}{2}}$ The denominator is the value by which we should root, then the numerator is the power the fraction should be raised to: [root and then raise]

$\frac{(\sqrt{25})^{1} }{(\sqrt{64})^{1} }$ This fraction then becomes:

$\frac{5}{8}$

8 0

3 years ago

Tameka bought 50 cans of soda ( cola, grape, and orange) to serve at a party. She has 8 more colas than grape sodas, and 3 less

Gwar [14]

Answer:

Orange = 12

Grape = 15

Cola = 23

Step-by-step explanation:

Turning this into equations you can give each soda a variable

Cola = C | Grape = G | Orange = R

Then you get:

8 + G = C

R + 3 = G

C + G + R = 50

We want to get a variable all by itself in an equation so first I'm going to put the second equation (R + 3 = G) in the first (8 + G = C) by replacing the G to get

8 + (R + 3) = C Combine the variables 11 + R = C and put that new equation into the last equation

(11 + R) + G + R = 50

Now plug our original second equation (R + 3 = G) into our third to get

(11 + R) + (R + 3) + R = 50

Combine and get

14 + 3R = 50 Subtract over the 14

3R = 36 Divide by 3

Orange Sodas = 12

Our new 3rd Equation is now: C + G + 12 = 50, subtract over 12 to get

C + G = 38

Plug either equation 1 or 2 into that one, I'll do 1

(8 + G) + G = 38

8 + 2G = 38

2G = 30

Grape Sodas = 15

Now our 3rd equation is C + 15 = 38, subtract over 15

Cola Sodas = 23

Orange = 12

Grape = 15

Cola = 23

12 + 15 + 23 = 50

7 0

3 years ago