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meriva
3 years ago
6

Solve the problem. Help quick

Mathematics
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

y = -x^2

Step-by-step explanation:

First off you can tell that the graph represents a negative,

nonlinear function due to the direction of the 2 "lines" from

point (0,0). This simply means you can eliminate the graph

representing y = 2x^2 as one of the choices. Now as this is

squared function (^2) you can tell that every x value should be

squared to receive the y value. Here I am suggesting a simple

- x^2 to be defined for the graph.  Take x = 1 as the first

example. If x is squared then y is equal to 1 as well. This is

represented as two coordinates on the graph, when the y value

is negative and when the y value is positive. Now say x = 2.

When x is squared  y = 4, represented by the graph as two

points as well, when y is a negative value of 4 and a positive.

This shows that the graph resembles the function -x^2                             (y = -x^2)

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Neporo4naja [7]

Answer:

Step-by-step explanation:

8 0
3 years ago
Three more than the quotient of a number and 8 is 9
Alborosie

Answer:

48

Step-by-step explanation:

x/8+3=9

x/8=9-3

x/8=6

x=6*8

x=48

4 0
3 years ago
Read 2 more answers
Emma has addressed seven invitations to her
Firlakuza [10]

Answer:

12

Step-by-step explanation:

This can be solved by working backwards.

7 is one more than half the number of invitations.

Subtract 1.  6 is half the number of invitations.

Double.

12 is the full number of invitations.

Algebra (if you must!):

x = number of invitations

x/2 + 1 = 7

Subtract 1.

x/2 = 6

Multiply by 2.

x = 12

8 0
2 years ago
Read 2 more answers
Daisy works at an ice-cream parlor. She is paid $10 per hour for the first 8 hours she works in a day. For every extra hour she
tester [92]

Answer:

The expression giving her net earnings for a day with more than 8 hours worked is X = 80 + 15H, where H means "extra hours worked".

Step-by-step explanation:

Given that Daisy works at an ice-cream parlor earning $10 per hour for the first 8 hours she works in a day, and 1.5 times her hourly wage for every extra hour she works, in order to know how much can she make in a day working more than 8 hours the following equation has to be made:

X = (8 x 10) + (H x (1.5 x 10))

X = 80 + 15H

Therefore, if Daisy works 13 hours, the equation works as follows:

X = 80 + 15x13

X = 80 + 195

X = 275  

3 0
3 years ago
Write the following series in sigma notation.<br> 7 + 16 + 25 +34 +43 +52 + 61
Solnce55 [7]

The series 7 + 16 + 25 +34 +43 +52 + 61 is an illusration of arithmetic series

The sigma notation of the series is: \sum\limits^7_{n=1} {9n - 2}

<h3>How to write the series in sigma notation?</h3>

The series is given as:

7 + 16 + 25 +34 +43 +52 + 61

The above series is an arithmetic series, with the following parameters

  • First term, a = 7
  • Common difference, d = 9
  • Number of terms, n = 7

Start by calculating the nth term using:

a(n) = a + (n - 1) * d

This gives

a(n) = 7 + (n - 1) * 9

Evaluate the product

a(n) = 7  - 9 + 9n

Evaluate the difference

a(n) = 9n - 2

So, the sigma notation is:

\sum\limits^7_{n=1} {9n - 2}

Read more about arithmetic series at:

brainly.com/question/6561461

3 0
2 years ago
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