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
lisov135 [29]
3 years ago
6

Find f'(x) for f(x) = −7x2 + 4x − 10.

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0
The answer is D, none of these
You might be interested in
The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1800 hours and a standard deviation
DedPeter [7]

Answer: 68% of light bulbs last between 1765 hours and 1835 hours.

Step-by-step explanation:

The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated below

68% of data falls within the first standard deviation from the mean.

95% fall within two standard deviations.

99.7% fall within three standard deviations.

From the information given, the mean is 1800 hours and the standard deviation is 35 hours.

1 standard deviation = 1 × 35 = 35

1800 - 35 = 1765 hours

1800 + 35 = 1835 hours

Therefore, 68% of light bulbs last between 1765 hours and 1835 hours.

6 0
3 years ago
What is the value of y? Enter your answer in the box. y = An isosceles triangle with vertices labeled A, B, and C. Side B C is t
masha68 [24]

Answer:

y = 5

Step-by-step explanation:

Given:

An isosceles triangle ABC with AB = AC.

∠A = (4y+10)\°

∠B = 75\°

∠C = (3x)\°

We know that, for an isosceles triangle, the angles opposite equal sides are also equal to each other.

Therefore, ∠B = ∠C

⇒ 75 = 3x

⇒ x=\frac{75}{3}=25

∴ ∠C = 3\times 25=75°

Now, the sum of all the interior angles of a triangle is always 180°.

\angle A + \angle B + \angle C=180\\(4y+10)+75+75=180\\4y+10+150=180\\4y+160=180\\4y=180-160\\4y=20\\y=\frac{20}{4}=5

Therefore, the value of 'y' is 5.

5 0
2 years ago
Wha is 1.11×10^-7 wrtten in standard form
Llana [10]
It is already in standard form.
5 0
3 years ago
If it takes Kathy 2 hours to bake 20 cupcakes, then at that rate, how many cupcakes could be made in 16 hours?
Stella [2.4K]
The answer to this question would be 160 cupcakes in 16 hours
5 0
2 years ago
Read 2 more answers
Which face has symmetry?​
Setler79 [48]

Answer:

D last one

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • A pair of pants costs twice as much as a shirt. The total cost of 1 pair of pants and 1 shirt is $18 . If s represents the cost
    12·2 answers
  • Identify the vertex of the function, f(x) = 3(x - 1)2 + 5.
    15·2 answers
  • The surface area of 3ft, 7ft, 2ft
    6·1 answer
  • The index of refraction of quartz is anisotropic. Suppose that visible light is passing from one grain to another of different c
    5·1 answer
  • The price of a DVD, including 5% sales tax is $21.15. What us the price of the DVD, before sales tax?​
    10·1 answer
  • 3x - 9 = 12 <br> Solve for X
    8·2 answers
  • 32. The length of a rectangle measures six more than the width. The perimeter of the rectangle is 38.
    13·1 answer
  • Translate (5. – 5) down 3 units.
    6·1 answer
  • Mrs. Wallace is already tired of school and thinking about her summer vacation. She wants to take a road trip with her family. A
    10·1 answer
  • Fill in the monthly budget, assume your gross monthly is $550 from your part time job. in your spare time you walk a dog for an
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!