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
slamgirl [31]
3 years ago
6

Please help and give good answers

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0

Answer:

y=3x+9 I'm pretty sure

inessss [21]3 years ago
7 0

Answer:

be smart

Step-by-step explanation:

when using such a complex mindset of activity

a set of explanations might be there but,

don't get me wrong concentration is key

adding understanding

You might be interested in
What 3-dimensional figure can be created by folding the shape shown below on the dotted lines?
oksano4ka [1.4K]

Answer:

A triangle

Step-by-step explanation: The two squares lean against each other

8 0
2 years ago
A pet store sells tropical fish. One week they sell 15 anglefish, 9 tetras, 42 guppies. The owner uses ratios of sales to compar
Ivahew [28]

Answer: 15:42or simplified 5:14


Step-by-step explanation:

15 angelfish to 42 guppies

15/3= 5

42/3=14

so the ratio of 15:42 is equal to 5:14

5 0
3 years ago
Please I need Steep by Steep Help 100 Points + Branly
mafiozo [28]

Answer:

a 4

b 3

c 9

d 4

Step-by-step explanation:

id.k

7 0
3 years ago
The principal at Riverside High School would like to estimate the mean length of time each day that it takes all the buses to ar
Lilit [14]

Answer:

C) 11

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Since the Confidence is 0.90 or 90%, the value of \alpha=0.1 and \alpha/2 =0.05, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that z_{\alpha/2}=1.64

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{s}{\sqrt{n}}    

And on this case we have that ME =7 and we are interested in order to find the value of n, if we solve n from the last equation we got:

n=(\frac{z_{\alpha/2} s}{ME})^2  

And replacing the values that we got we have:

n=(\frac{1.64(14)}{7})^2 =10.758 \approx 11

C) 11

8 0
3 years ago
Bob order 151/2 pound of cherrys fron the farm,this year they want to order 1 1/4 more pound but then 2/5 of the order they want
noname [10]

Answer:

Percentage of cherries    = 60 %

Percentage of berries  = 40 %

Step-by-step explanation:

He orders  15 1/2 pounds every year.

He wants more=  1 1/4 pounds

So the total pounds = 15 1/2 + 1 1/4

                                 = 15 + 1 + 1/2 + 1/4

                                 = 16 + (2+1)/4

                                  =   16 + 3/4

                                  = 16 3/4 pounds

Out of 16  3/4 pounds they want 2/5 part to be of blue berries.

So blue berries = 16 3/4 * ( 2/5)

                          = 67/4 * ( 2/5)

                            = 67/10 = 6 7/10 pounds

Amount of cherries= 16  3/4- 6 7/10

                                 = 10 3/4- 7/10

                                  = 10 (15- 14)/20

                                   = 10 1/20 pounds

Percentage of cherries = Amount of cherries/ Total amount * 100

                                      = 201/20 / 67/4 *100

                                         = 201/20 * 4/67 *100

                                         = 201/335 *100

                                          = 60 %

Percentage of berries = 100- 60 = 40 %

3 0
3 years ago
Other questions:
  • What is the area of this trapezoid?<br><br> 50 in²<br><br> 108 in²<br><br> 126 in²<br><br> 192 in²
    10·2 answers
  • The sum of the measures of two angles of a scalene triangle is calculated, and the result is the same as the measure of one of t
    11·2 answers
  • A change in the dollar price of yen from $1 = 100 yen to $1 = 50 yen will:
    5·1 answer
  • 3.15 as a mixed number
    13·1 answer
  • Please help by Giving out the brainiest
    12·1 answer
  • Pls help<br> Show workings???
    11·1 answer
  • -2m-6=-6m+8<br><br><br><br> someone pls help me and solve the problem showing there work!
    8·1 answer
  • Maggie's brother is 10 years younger than twice her age. The sum of their ages is 32.
    5·1 answer
  • The sum of 5 times a number and 16 is 31.<br> What is the number? <br> Enter your answer in the box.
    7·2 answers
  • Please man<br> please help me
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!