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
Bogdan [553]
3 years ago
11

Need help soon please and that’s question 6

Mathematics
1 answer:
AnnZ [28]3 years ago
5 0

Answer:

16

Step-by-step explanation:

H = (-16) × (1-2)2 + 64

=(-16) × (1-4) + 64

=(-16) × 3 + 64

=(-48) + 64

=<u>1</u><u>6</u>

You might be interested in
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.3. (Round your ans
Maurinko [17]

Answer:

0.0039 is the probability that the sample mean hardness for a random sample of 12 pins is at least 51.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 50

Standard Deviation, σ = 1.3

Sample size, n = 12

We are given that the distribution of hardness of pins is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Standard error due to sampling =

=\dfrac{\sigma}{\sqrt{n}} = \dfrac{1.3}{\sqrt{12}} = 0.3753

P(sample mean hardness for a random sample of 12 pins is at least 51)

P( x \geq 51) = P( z \geq \displaystyle\frac{51 - 50}{0.3753}) = P(z \geq 2.6645)

= 1 - P(z < 2.6645)

Calculation the value from standard normal z table, we have,  

P(x \geq 51) = 1 - 0.9961= 0.0039

0.0039 is the probability that the sample mean hardness for a random sample of 12 pins is at least 51.

3 0
3 years ago
If I have 60 coins consisting of dimes and quarters, and if I have x dimes, how many quarters do i have?
Contact [7]
I don't know if I'm correct, I'm guessing... 30
4 0
3 years ago
Read 2 more answers
Six times a number x is at least -24
S_A_V [24]
The answer is -4.
 i hope it helps you!


6 0
3 years ago
Read 2 more answers
a purse contains 25p coins and 50 p coins. the total amount in the purse is rs.25. if the number of 50 p coins is double the num
erica [24]
Let the total no. of 25 p coins be x
50p coins = 2x 

Value of 25 p coins ( in rupees) = 0.25*x =0.25x
Value of 50p coins ( in rupees) = 0.5*2x = x

0.25x+x = 25
1.25x =25
x = 25/1.25 = 20

no. if 25p coins = 20
and 50p coins = 2*20 = 40

4 0
3 years ago
Reducing Fractions<br> 30/90
fgiga [73]

Answer: 1/3

<u>Divide</u>

30/90÷30/30=1/3

Since we are simplifying fractions we divide the numerator and the denominator by a number the fraction can go into.

We could use 10 then divide by 3. You can also just divide by 30 and get the answer.

Let's try dividing by 10 then 3!

30/90÷10/10=3/9

3/9÷3/3=1/3

As you can see we still get 1/3 when we divide by 3. Even tho you have to divide twice you still get 1/3. That's all that matters.

3 0
3 years ago
Other questions:
  • Option 2
    6·1 answer
  • 13) 3 bags of Brand X dog food and 4 bags of Brand Y dog food costs $18,
    12·1 answer
  • A teacher figures that final grades in the chemistry department are distributed as: A, 25%; B, 25%;C, 40%;D, 5%; F, 5%. At the e
    9·1 answer
  • 2. Match each set of equations with the move that turned the first
    11·1 answer
  • In circle N, KL ≅ ML.<br><br> What is the measure of ?<br> 77°<br> 90°<br> 132°<br> 154°
    13·2 answers
  • Janet must paint her outdoor cicular tabletop
    8·1 answer
  • The perimeter of a rectangle is 18cm- if the
    7·1 answer
  • Which equation could be represented by the number line
    15·2 answers
  • Put the following equation of a line into slope-intercept form, simplifying all
    10·1 answer
  • WILL MARK BRAINLIEST . PLEASE HELP . Pigeons can fly at a rate of 168ft every 6 minutes, and ravens can fly at a rate of 472ft e
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!