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
tatuchka [14]
4 years ago
7

Find a so that the point (-1, 2) is on the graph of f(x)=ax^2+5.

Mathematics
1 answer:
Gnesinka [82]4 years ago
4 0
We are asked to determine the value of a such that the function f(x) = ax^2 + 5 is fit for the point given (-1,2). In this case, we substitute 2 to y and -1 to x. The result is then 2 = a*(-1)^2 + 5 ; 2 = a + 5; a is then equal to -3
You might be interested in
A customer buys 15.5 cheese pizzas which are $10.50 each. What is the total? Round it to the nearest hundredth.
Cerrena [4.2K]
First of all, how do you buy exactly 15.5 pizzas?
what is a 0.5 pizza?

anyway

cost=cost per pizza times number of pizzas
cost per pizza=10.50
number of pizzas=15.5

cost=10.50 times 15.5
cost=162.75

total cost is $162.75
5 0
4 years ago
Horizontal lines are __________ perpendicular to vertical lines. question 10 options:
LenKa [72]
A. Always
These lines<span> are </span>perpendicular<span> since their slopes are negative reciprocals.</span>
7 0
3 years ago
Which triangles are congruent by AAS?
netineya [11]
For two triangles to be congruent by AAS:
1- Two angles in the first triangle must be equal to two angles in the second triangle
2- A non included side in the first triangle is equal to a non included side in the second triangle

Now, let's check our options. We will find that:
For the two triangles UTV and ABC:
angle T = angle A
angle V = angle C
TU (non-included between angles T & V) = AB (non-included between angles A & C)

Therefore, we can conclude that:
Triangles ABC and UTV are congruent by AAS

8 0
3 years ago
Read 2 more answers
A house painter finds that he needs 20 minutes to set up his equipment before painting and then 5 minutes for every square foot
garri49 [273]
To answer this question you need to add 20 minutes to 5 times 800, which equals 4020, then you divide 4020 by 60 and your answer is 67!
8 0
3 years ago
A man bought a lot for 1200 and sold it for 1500. his percent of gain based on his purchase was
jok3333 [9.3K]

Answer: The percent gain was 25%.

Step-by-step explanation:

Given, Cost price of lot = $1,200

Selling price of lot = $1,500

The percent gain = \dfrac{\text{selling price- cost price}}{\text{cost price}}\times100

⇒ Percent gain =\dfrac{1500-1200}{1200}\times100\%

\Rightarrow\text{ Percent gain}=\dfrac{300}{1200}\times100\%\\\\\Rightarrow\text{ Percent gain}=\dfrac{1}{4}\times100\%\\\\\Rightarrow\text{ Percent gain}=25\%

Hence, the percent gain was 25% based on his purchase.

5 0
4 years ago
Other questions:
  • On a standardized exam, the scores are normally distributed with a mean of 300 land a standard deviation of 20. Find the z-score
    7·1 answer
  • Roni and Allie are mowing the grass at the soccer field. Roni has a riding lawn mower and can mow the field in 30 minutes. Allie
    11·2 answers
  • I need help with this problem
    9·2 answers
  • If 18 more than 2 times a number is -10, what is the number?
    13·1 answer
  • There are six read a yellow to blue and for green marbles in a black bag. What are the odds of reaching into the black bag and s
    12·1 answer
  • The graph of the function f(x)=V x+4 is shown below <br> The domain of the function is
    11·1 answer
  • Which expression represents the length of the spring after Gerard removes some weight? Gerard adds weight to the end of the hang
    10·1 answer
  • Tina is tossing bean bags at a target. She hit the target on 3 out of her last 15 tries. Considering this data, how many hits wo
    12·2 answers
  • If ∆ABC congruent ∆DEF, which of the following can you NOT conclude as being true?
    12·2 answers
  • Identify the Minimum, First Quartile, Median, Third Quartile, and Maximum for the data.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!