1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitriy789 [7]
3 years ago
5

Evaluate the expression below when x = -1. 2x∧2 − 5 ______ x + 9

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0
If x= -1

so.
2(-1)^2-5 / (-1 +9)
=-3/8
=-0.375
You might be interested in
gina pasted 3 stickers in a book. if she added one sticker to her collection every day, what equation represents the relationshi
lukranit [14]

Answer:

The answer to your question is

                       Number of stickers = number of days + 3

Step-by-step explanation:

- To find the equation of the line that represents the situation, first, find the slope.

Slope = m = \frac{y2 - y1}{x2 - x1}

             m = \frac{4 - 3}{1 - 0} = \frac{1}{1} = 1

- Find the equation of the line

                      y - y1 = m(x - x1)

                      y - 4 = 1(x - 1)

                      y - 4 = x - 1

                           y = x - 1 + 4

                           y = x + 3

y = number of stickers

x = days

                     Number of stickers = number of days + 3

3 0
3 years ago
A spinner has equal regions numbered 1 through 20. What is the probability that the spinner will stop on an odd number or a mult
klio [65]

Answer:

<em>Probability that the spinner will stop on an odd number or a multiple of 5 is </em><em>0.6</em>

Step-by-step explanation:

Probability = \frac{Required outcomes}{Total possible outcomes}

We are given the equal regions numbered from 1 through 20 which means that our total possible outcomes are 20

<em>Total possible outcomes: 20</em>


<em>Outcomes that spinner will stop on an odd number, n(Odd): 10</em>

1, 3, 5, 7, 9, 11, 13, 15, 17, 19

Probability of spinner stoping on Odd number:

P(Odd) = \frac{n(Odd)}{Total} = \frac{10}{20} = \frac{1}{2} = 0.5


Outcomes that spinner will stop on a multiple of 5, n(5): 4

5, 10, 15, 20

Probability of spinner stoping on multiple of 5:

P(5) = \frac{n(5)}{Total} = \frac{4}{20} = \frac{1}{5} = 0.2

Odd numbers which are a multiple of 5 are: 5 and 15

So,

P(Odd and 5) = \frac{2}{20}=\frac{1}{10}=0.1

Thus Probability of spinner stopping at odd number or a multiple of 5 becomes:

P(Odd or 5) = P(Odd) + P(5) - P(Odd and 5) = 0.5 + 0.2 - 0.1 = 0.6

7 0
3 years ago
A trapezoid has a height of 10 centimeters. One parallel base has a length of 7 centimeters, and the other parallel base has a l
Papessa [141]

Answer:

I couldn't see the picture it is black

Step-by-step explanation:

the formula for the area of a trapezoid is:

\frac{b1+b2}{2} h

insert 7 for b1, 13 for b2, and 10 for h

\frac{7+13}{2} 10

100

Hope that helps

8 0
2 years ago
Reuben bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He p
cupoosta [38]
Same case as Pablo's, more or less.

a = price for the desktop

b = price for the laptop

we know the laptop is 150 bucks more than the desktop,  b = a + 150.

how much is 7% of a?  (7/100) * a, 0.07a.

how much is 9.5% of b?  (9.5/100) * b, 0.095b.

total interests for the financing add up to 303, 0.07a + 0.095b = 303.

\bf \begin{cases}&#10;\boxed{b}=a+150\\&#10;0.07a+0.095b=303\\&#10;----------\\&#10;0.07a+0.095\left(\boxed{a+150}  \right)=303&#10;\end{cases}&#10;\\\\\\&#10;0.07a+0.095a+14.25=303\implies 0.165a=288.75&#10;\\\\\\&#10;a=\cfrac{288.75}{0.165}\implies a=1750

how much was it for the laptop?  well b = a + 150.
8 0
3 years ago
7(4x) simplifying expressions pls help with this!
Slav-nsk [51]

7(4x) = 28x

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>:</em><em>)</em>

3 0
2 years ago
Read 2 more answers
Other questions:
  • there are 45 cans of mixed nuts if each can has 338 nuts what is the total number of nuts,n, in all of the cans
    7·1 answer
  • What is the exact volume of the cylinder with the raduis 6 and the height of 9
    7·2 answers
  • A recipe calls for 8 cups of brown sugar. if i am making 3/4 of the recipe, how much brown sugar should i use?
    11·2 answers
  • What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?
    14·1 answer
  • I don’t understanddddd
    9·2 answers
  • Solve the equation 4(2x + 1) = 6x − 12.
    8·1 answer
  • Hey i'm dumb and geometry is hard pls help! i will give you branliest!
    10·1 answer
  • . Write the following exponential expressions as equivalent radical expressions. <br> a. 2^(1 /2)
    7·1 answer
  • PLEASE HELP ASAP will give brainly
    6·1 answer
  • The mass of potatoes Lucan used in his cooking is 5/2 the mass of carrots used.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!