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
trapecia [35]
3 years ago
5

How do you find the domain for 7

Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0

h(x) = -5x² + 15x - 3

It's a quadratic function. The domain of quadratic function is the set of all real numbers.

Therefore

D=\mathbb{R}-all real numbers.

You might be interested in
If gas prices are now $3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?
Hatshy [7]

Given

gas prices are now $3.75 and it up 10% from 6 months ago.

Find out how much were gas prices 6 months ago.

To proof

gas prices now = $3.75

let the gas price 6 month ago = x

gas price now is rise up 10% from 6 months ago

First write 10% in simpler form

= \frac{10}{100}

= 0.1

Now the equation becomes

0.1x + x = 3.75

1.1x = 3.75

x =\frac{3.75}{1.1}

x = 3.41 (approx)

Thus gas prices 6 months ago be $ 3.41 (approx )

Hence proved

7 0
4 years ago
HELPPP!!!!!!
Furkat [3]
<h3>Answer: Choice D)  31.2 miles</h3>

This value is approximate.

============================================================

Explanation:

Let's focus on the 48 degree angle. This angle combines with angle ABC to form a 90 degree angle. This means angle ABC is 90-48 = 42 degrees. Or in short we can say angle B = 42 when focusing on triangle ABC.

Now let's move to the 17 degree angle. Add on the 90 degree angle and we can see that angle CAB, aka angle A, is 17+90 = 107 degrees.

Based on those two interior angles, angle C must be...

A+B+C = 180

107+42+C = 180

149+C = 180

C = 180-149

C = 31

----------------

To sum things up so far, we have these known properties of triangle ABC

  • angle A = 107 degrees
  • side c = side AB = 24 miles
  • angle B = 42 degrees
  • angle C = 31 degrees

Let's use the law of sines to find side b, which is opposite angle B. This will find the length of side AC (which is the distance from the storm to station A).

b/sin(B) = c/sin(C)

b/sin(42) = 24/sin(31)

b = sin(42)*24/sin(31)

b = 31.1804803080182 which is approximate

b = 31.2 miles is the distance from the storm to station A

Make sure your calculator is in degree mode.

8 0
3 years ago
If 1 kg of milk had 0.264 kg of fat, then find the amount fat in 12.5 kg of milk.<br>​
beks73 [17]

1 kg--> 0.264 kg fat

:. 12.5 kg--> (0.264*12.5) 3.3 kg fat

Mark me brainliesttt :))

3 0
3 years ago
Please help me on this question
Ierofanga [76]

Answer:

please mark my answer brainliest

Step-by-step explanation:

  1. 11 students
  2. 26 students
  3. that 2 small divisions =1 unit =1 student
6 0
3 years ago
Donna is a computer repair person. She charges a flat fee of $20 for each computer plus an hourly charge of $9 per hour. Yesterd
ollegr [7]

Answer:

$147

Step-by-step explanation:

20×6=120 9×3=27. 120+27=147

5 0
3 years ago
Other questions:
  • Show work for all problems!
    13·1 answer
  • Find the greatest common factor of the following monomials 34n^5 32n4
    9·2 answers
  • How many sunflower seeds to get 1000 calories
    14·1 answer
  • Which expressions are equivilent to -4 2/7 + (-1 1/2) + (-3/7)
    12·1 answer
  • Find the value of each variable
    11·1 answer
  • Solve the problem 1/5+2/5+3/5=
    15·2 answers
  • Which expression can be used to determine the skip of the linear function represented in the table
    10·2 answers
  • Mitzi has 79 coins she divides the coins equally among herself and her 3 brothers Mitzi will keep any coins left over how many c
    9·1 answer
  • If x2 = 10, what is the value of x?
    13·2 answers
  • Can someone help me i will give brainliest to whom ever right 28=x+13
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!