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3 years ago

How to change a quadratic equation into intercept form?

1 answer:

5 0

While most of the ways to write the quadratic equation are redundant and useless, there are three forms that actually have unique uses. These three main forms that we graph parabolas from are called standard form, intercept form and vertex form.

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LK is tangent to circle J at point K. What is the length of the radius? 6/25 85/12 121/36 157/12

schepotkina [342]

Answer:

85/12

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the sum of the first 10<br> terms.<br> 40,37,34,31,...

MArishka [77]

Answer:

It seems each number is 3 less than the previous number.

We must sum these 10 numbers

40, 37, 34, 31, 28, 25, 22, 19, 16, 13

The sum would equal the average of the middle 2 numbers times 10.

(28 + 25) / 2 = 53 / 2 = 26.5

We multiply by 10 because there are 10 numbers and this equals

265

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

You are dealth one card from a 52-card deck. find the probability that you are dealt a two or a black card

grigory [225]

The probability of getting a 2 or a getting a black card, find individual probabilities;

A standard deck has 52 cards.

There are 4 2's in a normal deck; probability of getting it is 4/25

The probability of getting a black card is; 26/52 since half the deck is red and black.

Now add up the probabilities since it says "or"

(4/52)+(26/52)=30/52 probability of the card that you were dealt being a two or a black card.

Hope I helped :)

6 0

3 years ago

PLEASE HELP!!on a piece of paper graph f(x)=2•(3)^x.Then determine which answer choice matches the graph you drew.

Dahasolnce [82]

Answer:

Graph B

The graph in the attached figure

Step-by-step explanation:

we have

$f(x)=2(3)^{x}$

This is a exponential function

of the form

$f(x)=a(b)^{x}$

where

a is the initial value

b is the base

r is the rate

b=1+r

In this problem

a=2 ----> the y-intercept

b=3

1+r=3 -----> r=3-1=2 -----> r=200%

The y-intercept of the graph is equal to 2

As x increases the value of f(x) increases

therefore

Graph B

4 0

3 years ago

X + 4y = -8 x-4y=-8 elimination

Juli2301 [7.4K]

Steps :-

■ Eliminate the equations (subtract them). You'll get the value of 1 variable.

■ Then substitute in another equation to get the value of the other variable.

Answer :-

■ x = -8 & y = 0

See the attachment for the steps.

________

Hope it helps ⚜

6 0

3 years ago