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
Bumek [7]
3 years ago
7

What is the square root of 4

Mathematics
2 answers:
Nezavi [6.7K]3 years ago
5 0
2 is the square root of 4
mixas84 [53]3 years ago
4 0
2 is the square root of 4, 2^2=4, (2×2=4)
You might be interested in
Researchers watched dolphin groups off the coast of Ireland in 1998 to determine what activities the dolphin groups partake in a
Arte-miy333 [17]

The table of the number of dolphins is used to illustrate probability

The probability that a dolphin group is partaking in travel is 0.2063

<h3>How to determine the probability</h3>

From the table, we have:

  • The total number of dolphin group = 189
  • The total number of dolphin group that partake in travel = 39

So, the probability that a dolphin group is partaking in travel is calculated as:

p = 39/189

Divide

p = 0.2063

Hence, the probability that a dolphin group is partaking in travel is 0.2063

Read more about probability at:

brainly.com/question/25870256

5 0
2 years ago
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 439.0 gram setting.
Vlada [557]
<h2>Answer with explanation:</h2>

Let \mu be the average weight of chocolate chips in each bag.

As per given , we have

H_0: \mu =439.0\\\\ H_a: \mu

Since H_a is left-tailed , so we perform a left-tailed test.

Also, the population standard deviation is known \sigm=21.0.

So we use z-test.

Test statistic : z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqt{n}}}

Substitute given value ,\overline{x}=433.0\ , n=47,\ \sigma=21 \ , \mu=439

z=\dfrac{433-439}{\dfrac{21}{\sqrt{47}}}\approx-1.96

Significance level = 0.05

Decision rule : Reject H_0 when p-value < 0.05.

By z-table , P- value for left-tailed test  = P(z<-1.96)= 1- P(z<1.96)

[∵ P(Z<-z)=1-P(Z<z)]

= 1- 0.9750

=0.025

Since , P-value(0.025) < 0.05 , so we reject the null hypothesis.

We support the claim that the machine is underfilling the bags at 0.05 significance level .

3 0
3 years ago
I'm picking a number between 1-20. I add 5, then I times the number by 3. Lastly I takeaway it by 15. My answer is 42.
Pani-rosa [81]
So (x + 5)*3 - 15 = 42
so the answer is 
42 + 15 = 15 + 3x
so solving for x:
x = 14
6 0
3 years ago
Read 2 more answers
Explain why you cannot find the intersection points of the two lines shown below. Give both an algebraic reason and a graphical
Art [367]

Answer:

m_1 = m_2 = 4

Step-by-step explanation:

Given

y = 4x + 1

y = 4x + 10

Required

Show that these two lines have no point of intersection

The general equation of a line is

y = mx + b

Where m represents slope

In y = 4x + 1

m = 4

Similarly; in y = 4x + 10

m = 4

Since the slope of both lines are equal;

m_1 = m_2 = 4

<em>This implies that the lines are parallel and parallel lines have no point of intersection</em>

<em></em>

<em>See Attachment for Graph</em>

5 0
4 years ago
the height of the gateway arch shown on the Missouri quarter is 630 feet or 7560 inches.find how many 4 inch stacks of quarters
Elena-2011 [213]
Step One: 7560 ÷ 4 = 1890 Stacks Of Quarters
Step Two: 58 * 1890 = 109,620 Quarters

The Arch is 109,620 quarters high.
5 0
3 years ago
Other questions:
  • Which of the following is equivalent to (81m6) 1/2?
    10·2 answers
  • Find the distance between the two points (0,0), (4,3)
    6·1 answer
  • Sandi works for Elizabeth Arden Cosmetics and earns $500 per week salary plus 4% commission on sales over $2,000. If Sandi sold
    15·1 answer
  • Solve the equation, and check the solutions √(x+9)/4=3.
    8·1 answer
  • 9 out of 20 students ride the bus to school. Find the percent.
    9·2 answers
  • In right △ABC , the right angle is at C, m∠A=30∘ , and AC=5√ 5 units.
    9·1 answer
  • Write 144 with an exponent by using 12 as the base
    9·2 answers
  • Do you know how to bake a muffan
    6·2 answers
  • Simplify this expression √8 + 6(√32 − √18)
    14·1 answer
  • Four machines, each costing $5,700, were purchased for an office. Each machine requires
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!