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3 years ago

Find the y-intercept for f(x )= - (x+1)^2 A. -1 B. x C. 0 D. 1

Mathematics

2 answers:

Rainbow [258]3 years ago

6 0

The answer is negative one!

MAVERICK [17]3 years ago

5 0

Answer:

-1

Step-by-step explanation:

What's the x value of a point that's considered as the y-intercept? It's 0.

With that in mind, let's solve this by plugging 0 into the function

$f(0) = -(0+1)^2\\f(0) = -1$

Good luck!

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You invested $26,000 in two accounts paying 2% and 3% annual interest, respectively. If the total interest earned for the year

mihalych1998 [28]

Answer:

You invested $22,000 in two accounts paying 3% and 5% annual interest, respectively. If the total interest earned for the year was $980, how much was invested at each rate?

Step-by-step explanation:

let x=amt invested at 3% rate of interest.

22000-x=amt invested at 5% rate of interest.

.03x+.05(22000-x)=980

.03x+1100-.05x=980

.02x=120

x=6000

22000-x=16000

amt invested at 3% rate of interest=$6,000

amt invested at 5% rate of interest=$16,000

<h2><em><u>Hope iit help you mark as Brainlist</u></em></h2>

7 0

3 years ago

How to solve using substitution

DiKsa [7]

X+5 = x^2 - x + 2
0 = x^2 -2x - 3
0 = (x-3)(x+1)

x = -1,3

y = -1 + 5 OR y = 3+5
y = 4 OR y = 8

y = 4,8

So we have two ordered pairs, (-1,4) and (3,8).

Hope that helped!

can you mark my answer as brainliest btw?

4 0

3 years ago

the price of an item has been reduced by 40% the original price was $15 what is the price of the item now

harkovskaia [24]

This answer would be 21 because you’d just do 15 increased by 40% which gave me 21

3 0

3 years ago

3. half of 42, increased<br> by 5

OlgaM077 [116]

Answer:

Step-by-step explanation:

Half of 42 is 21.

21 + 5 = 26

Hope this helps you out ; )

3 0

3 years ago

In a history class, students take a weekly multiple choice quiz consisting of 6 questions, each with 4 possible answers. if a st

Mademuasel [1]

There are 24 possible answers, 6 are correct answers and 18 are incorrect answers. By use of the hypergeometric distribution the probabilities of each possible number of randomly selected correct answers can be found, as follows:
P(0) = 0.1379, P(1) = 0.3819, P(2) = 0.341, P(3) = 0.1213, P(4) = 0.017, P(5) = 0.0008, P(6) = 0.000007.
The expected or mean number of correct answers is found from:
$E(X)=0\times0.1379+1\times0.3819+2\times0.341+3\times0.1213+4\times0.017$ $+5\times0.0008+6\times0.000007=1.4998$
The answer is: 1.4998

8 0

3 years ago