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
spin [16.1K]
3 years ago
9

How can you use compatible numbers to estimate the quotient when dividing a decimal by whole number?

Mathematics
1 answer:
ss7ja [257]3 years ago
6 0
<span>Remember to place a zero in the quotient when the divisor is larger than the dividend.Place the decimal point in your quotient.Check your answer: Multiply the divisor by the quotient to see if you get the dividend.</span>
You might be interested in
In a race, Jane ran 3 minutes less than twice as many minutes as Mike ran. Write an expression to represent the number of minute
a_sh-v [17]

Answer:

n * 2 - 3

Step-by-step explanation:

Let's say n is the number of minutes Mike ran then the expression would be

n * 2 - 3

4 0
3 years ago
Read 2 more answers
I need help plzzzzzzzzz help me​
andrew11 [14]

Answer:

Which do you need help with?

1. -6 is 4 units from -2 in the negative direction.

2. A. and D

Step-by-step explanation:

When adding negative numbers the negative will be more, but if you are adding positive and negative numbers, whichever sign (+ or -) has the bigger number then that is the sign of the answer.

Additive inverses are when two numbers are added together to equal zero. Therefore if you have -3+3, it would be an additive inverse.

Hope this helps.

5 0
3 years ago
Is this decimal closer to 10 or 20?
PIT_PIT [208]

Answer:

Its closer to 10

Step-by-step explanation:

5 0
3 years ago
What is multiplied to equal 30 but is added to equal -17?
GalinKa [24]
7
 HASUJGUVBG DUa bgiAD GUI bgaoudbg
4 0
3 years ago
Read 2 more answers
A practice law exam has 100 questions, each with 5 possible choices. A student took the exam and received 13 out of 100.If the s
Cloud [144]

Answer:

z=\frac{13-20}{4}=-1.75

Assuming:

H0: \mu \geq 20

H1: \mu

p_v = P(Z

Step-by-step explanation:

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest (number of correct answers in the test), on this case we now that:

X \sim Binom(n=100, p=0.2)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

We need to check the conditions in order to use the normal approximation.

np=100*0.2=20 \geq 10

n(1-p)=20*(1-0.2)=16 \geq 10

So we see that we satisfy the conditions and then we can apply the approximation.

If we appply the approximation the new mean and standard deviation are:

E(X)=np=100*0.2=20

\sigma=\sqrt{np(1-p)}=\sqrt{100*0.2(1-0.2)}=4

So we can approximate the random variable X like this:

X\sim N(\mu =20, \sigma=4)

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".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  The letter \phi(b) is used to denote the cumulative area for a b quantile on the normal standard distribution, or in other words: \phi(b)=P(z

The z score is given by this formula:

z=\frac{x-\mu}{\sigma}

If we replace we got:

z=\frac{13-20}{4}=-1.75

Let's assume that we conduct the following test:

H0: \mu \geq 20

H1: \mu

We want to check is the score for the student is significantly less than the expected value using random guessing.

So on this case since we have the statistic we can calculate the p value on this way:

p_v = P(Z

5 0
3 years ago
Other questions:
  • How can u divide 5 pizza with 8 kids
    10·1 answer
  • The equation a = 1/2(b1 + b2)h can be used to determine the area, a, of a trapezoid with height, h, and the base lengths, b1 and
    6·1 answer
  • Evaluate 5z^2 when z = 3 and when z = -3
    14·2 answers
  • Let h be the function that assigns each student ID number to a grade level.
    8·1 answer
  • What is the answer for -3(-5) - 16?
    6·1 answer
  • The table below gives the number of hours ten randomly selected students spent studying and their corresponding midterm exam gra
    6·1 answer
  • 7 1/7 - 2 1/2 how do I solve?
    5·2 answers
  • Which of these expressions below is less than 345? Select all that apply.
    14·2 answers
  • I have to do a number graph using fractions I dont know how​
    10·1 answer
  • A suit is on sale for $378 which is 28% less than the regular price. what is the regular price?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!