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
zalisa [80]
3 years ago
8

What is 30 rounding to the nearest ten

Mathematics
2 answers:
Blizzard [7]3 years ago
7 0
Yh you can’t round 30 as 30 is its nearest ten
AURORKA [14]3 years ago
6 0
You can’t round 30 up or down because it’s already a ten. It would just stay as 30
You might be interested in
The national average sat score (for verbal and math) is 1028. if we assume a normal distribution with standard deviation 92, wha
elena55 [62]

Let X be the national sat score. X follows normal distribution with mean μ =1028, standard deviation σ = 92

The 90th percentile score is nothing but the x value for which area below x is 90%.

To find 90th percentile we will find find z score such that probability below z is 0.9

P(Z <z) = 0.9

Using excel function to find z score corresponding to probability 0.9 is

z = NORM.S.INV(0.9) = 1.28

z =1.28

Now convert z score into x value using the formula

x = z *σ + μ

x = 1.28 * 92 + 1028

x = 1145.76

The 90th percentile score value is 1145.76

The probability that randomly selected score exceeds 1200 is

P(X > 1200)

Z score corresponding to x=1200 is

z = \frac{x - mean}{standard deviation}

z = \frac{1200-1028}{92}

z = 1.8695 ~ 1.87

P(Z > 1.87 ) = 1 - P(Z < 1.87)

Using z-score table to find probability z < 1.87

P(Z < 1.87) = 0.9693

P(Z > 1.87) = 1 - 0.9693

P(Z > 1.87) = 0.0307

The probability that a randomly selected score exceeds 1200 is 0.0307

5 0
3 years ago
Any help would be cool thaanks
Nikolay [14]

Answer:

I Can help you! what do y need help on?

Step-by-step explanation:

6 0
3 years ago
115 divided by 17 and 72 divided by 5
Firlakuza [10]
72 divided by 5 is 14.4
4 0
3 years ago
Read 2 more answers
A recipe calls for 3/4 cups of flour . Estevan wants to make 1/3 of the recipe how much flour will he need
romanna [79]
1/3 × 3/4 = 1/4 :) hope this helped!
7 0
3 years ago
Read 2 more answers
What’s the correct answer for this? Select all the ones that apply
NNADVOKAT [17]

Answer:

C and E

Step-by-step explanation:

ANP = BNP = 90 WILL PROVE THAT CD IS PERPENDICULAR TO AB.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Identify whether the given value of the variable makes the equation true.
    8·1 answer
  • Ricardo draws three right triangles. In each figure, he measures a pair of angles. What is a reasonable conjecture for Ricardo t
    7·1 answer
  • 2":12"::6":24" Is this a true proportion?
    5·1 answer
  • What is fourteen less than three fourths of a number is negative eight written as a equation
    9·1 answer
  • Lowkey forgot how to do this so I’m stuck._.
    6·2 answers
  • 1. Jerry has a photo that is 7 inches wide and 5 inches high. He wants to enlarge it so that the new photo has a
    11·1 answer
  • Pls help me i suck at math and i really need this done.
    13·1 answer
  • Need help asap pls help​
    11·1 answer
  • Help asap will give 40 points
    11·1 answer
  • Only 12 people can ride a trolley at one time. This is 20% of the people waiting to ride. How many people are waiting to ride?​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!