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
viva [34]
3 years ago
7

Question 1: A ratio of 28 to 12 can be expressed in simplest form as:

Mathematics
1 answer:
vichka [17]3 years ago
3 0
It’s 7:3
Explanation
It’s 7:3 because 28 divided by 4 is 7 and 12 divided by 4 is 3
You might be interested in
Triangle JKL is dilated with the origin as the center of dilation to create triangle J'K'L' .
Kitty [74]

Answer: (x,y) -> (7/4x, 7/4y)

Step-by-step explanation:

5 0
2 years ago
11.
yKpoI14uk [10]

\\ \tt\leadsto tan\theta=\dfrac{Perpendicular}{Base}

\\ \tt\leadsto tan29=\dfrac{h}{400}

\\ \tt\leadsto h=400tan29

\\ \tt\leadsto h=221.7ft

6 0
1 year ago
Read 2 more answers
4,756 rounded to the nearest thousand is
Shalnov [3]

4,756 rounded to the nearest thousand is 5,000.

8 0
3 years ago
Read 2 more answers
A product comes in cans labeled "38 oz". A random sample of 10 cans had the following weights:
KiRa [710]

Answer:

b. 35.9, 39.1 ounces

Step-by-step explanation:

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".

barX=37.465 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=2.27 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

barX +- t*[(s)/(sqrt{n))]   (1)

In order to calculate the critical value t we need to find first the degrees of freedom, given by:

df=n-1=10-1=9

Since the Confidence is 0.95 or 95%, the value of alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,9)".And we see that t_(alpha/2)=2.26

Now we have everything in order to replace into formula (1):

37.465-2.26[(2.27)/(sqrt{10))]=35.9    

37.465+2.26[(2.27)/(sqrt{10))]=39.1

So on this case the 95% confidence interval would be given by (35.9;39.1)    

7 0
3 years ago
Which ordered pair is a solution of the system?
kenny6666 [7]
Y = -2x - 4

x + 4y = 19
x + 4(-2x - 4) = 19
x + (-8x) - 16 = 19
-7x - 16 = 19
-7x = 35
-x = 5
x = -5

y = -2x - 4
y = -2(-5) - 4
y = 10 -4
y = 6

Solution set {-5, 6} (C)
3 0
3 years ago
Other questions:
  • Which expression is equivalent to 6(14)? <br> 6(10 + 4) 6(10 + 14) 6(1 + 40) 6(10 + 40)
    8·2 answers
  • You can drive 420 miles on 20 gallons in 6 hours. How far can you drive on 1 gallon?
    12·2 answers
  • The function f is given in three equivalent forms.
    9·1 answer
  • BRAINLIEST IF UR CORRECT What is the correct answer?
    5·1 answer
  • A rectangle has an area of 24 square inches. The rectangle is reduced by a scale factor of 1/2 . What is the area of the new rec
    12·1 answer
  • Solve the formula B=(R+M)/2 for R
    15·1 answer
  • Find the circumference of circle with a radius of 63mm. Use 22/7 for pi
    10·2 answers
  • Write the equation of a line perpendicular to the line: y=−5/2x+4 that goes through the point (-6, 0).
    5·1 answer
  • Factor completly 4x^2 +8x -5
    9·1 answer
  • I need to know how to do this problem and graph it on a graph like this one below…Problem: Makayla earns $7 per hour at the bage
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!