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
Makovka662 [10]
3 years ago
5

30 points and brainliest...please help

Mathematics
2 answers:
Sever21 [200]3 years ago
8 0

Answer:

C. a greater-than 21 and one-third

Step-by-step explanation:

Allisa [31]3 years ago
5 0
I believe it's D, assuming "a" is a variable. This is because you multiply -16 by 4 to make 3/4a into 3a. The problem is now 3a<-64. Then you divide -64 by 3, which gets you -21.3 or -21 1/3. Now it is a<-21 1/3
You might be interested in
A TV company when purchasing thousands electronic components apply this sampling plan: randomly select 15 of them and then accep
katrin [286]
<h2>Answer with explanation:</h2>

According to the Binomial probability distribution ,

Let x be the binomial variable .

Then the probability of getting success in x trials , is given by :

P(X=x)=^nC_xp^x(1-p)^{n-x} , where n is the total number of trials or the sample size and p is the probability of getting success in each trial.

As per given , we have

n = 15

Let x be the number of defective components.

Probability of getting defective components = P = 0.03

The whole batch can be accepted if there are at most two defective components. .

The probability that the whole lot is accepted :

P(X\leq 2)=P(x=0)+P(x=1)+P(x=2)\\\\=^{15}C_0(0.03)^0(0.97)^{15}+^{15}C_1(0.03)^1(0.97)^{14}+^{15}C_2(0.03)^2(0.97)^{13}\\\\=(0.97)^{15}+(15)(0.03)^1(0.97)^{14}+\dfrac{15!}{2!13!}(0.03)^2(0.97)^{13}\\\\\approx0.63325+0.29378+0.06360=0.99063

∴The probability that the whole lot is accepted = 0.99063

For sample size n= 2500

Expected value : \mu=np= (2500)(0.03)=75

The expected value = 75

Standard deviation :  \sigma=\sqrt{np(1-p)}=\sqrt{2500(0.03)(0.97)}\approx8.53

The standard deviation = 8.53

6 0
3 years ago
Find the slope:<br> y = -X – 1
gogolik [260]

Answer:

The slope would be -x

Step-by-step explanation:

The second number in the equations y=mx+b is always the slope unless you have to plug in number and do all kinds of stuff but that's not whats in the problem now.

3 0
3 years ago
Read 2 more answers
Look at the photo pick A B C D either one explanation not needed thank you! &lt;3
hjlf

Answer:

A

Step-by-step explanation:

It's A

5 0
3 years ago
Read 2 more answers
Describe how to determine the average rate of change between x = 3 and x = 5 for the function f(x) = 3x3 + 2. Include the averag
Serhud [2]

Answer:

147

Step-by-step explanation:

Average rate of change is given by the total rise over total run.

f(x) = 3x^3+2\\f(3)=3*3^3+2=83\\f(5)=3*5^3+2 = 377

So,

total rise = 377 - 83 = 294

total run = 2

average rate of change = \dfrac{294}{2} = 147

8 0
3 years ago
Dan Perkins goat is attached to the corner of the 14-foot-by-7-foot pump house by a 14-foot length of rope. The goat eats the gr
fenix001 [56]
<span>This pattern consists of three-fourths of a circle of radius 14 feet and one-fourth of a circle of radius 7 feet. What area of grass can Dan Perkins goat eat?</span>

We know that the formula for the area of the pitch circle are:
\pi*r^2*\alpha where alpha is the pinch of circle, r is radius, and pi is mathematics constant approximately equal 3,14

\pi*14^2*\frac{3}{4}+\pi*7^2*\frac{1}{4}=461,58+38,465=500,045(feet^2)
5 0
3 years ago
Other questions:
  • What is 12/56 reduced?
    7·2 answers
  • Write this number in standard form 4000 + 10 + 3 + .02
    8·2 answers
  • What is the average volume of gasoline remaining in the cars waiting at the gas station?
    14·1 answer
  • What is the Expanded form of 26
    15·1 answer
  • A 10-sided die numbered 1 to 10 is rolled once. Find these probabilities.
    6·2 answers
  • Why is 0.7 greater than 7%?
    12·2 answers
  • There is an equilateral triangle, ABC, inscribed in a circle with center D. What is the smallest angle you can rotate triangle A
    11·1 answer
  • Combine the following expressions. Help pleaseeeeeeeeeeeeeeeeeee
    8·2 answers
  • Need some math help 50pts
    5·2 answers
  • Gary is collecting stamps and wants to collect the same number of stamps each week. He currently has 520 stamps. He only has 6 m
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!