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
Svetradugi [14.3K]
3 years ago
10

⚠️⚠️⚠️⚠️ANSWER ASAP!!! ⚠️⚠️⚠️⚠️

Mathematics
1 answer:
Anon25 [30]3 years ago
3 0

Answer:

0.08

Step-by-step explanation:

5^-2 x 2

1/25 or 0.04 x2

0.04 x 2= 0.08 or 2/25.

You might be interested in
If you multiply an area in square feet by a height in feet, the result will have units of?
Bumek [7]
x\ square\ units\ times\ y\ units=(xy)\ cube\ units\to (xy)u^3\\\\

The\ cube\ units\ of\ the\ volume.
4 0
2 years ago
Read 2 more answers
A random sample of 850 births included 434 boys. Use a 0.10 significance level to test the claim that 51.5​% of newborn babies a
Molodets [167]

Answer:

A

Null hypothesis: H0: p = 0.515

Alternative hypothesis: Ha ≠ 0.515

z = -0.257

P value = P(Z<-0.257) = 0.797

Decision; we fail to reject the null hypothesis. That is, the results support the belief that 51.5​% of newborn babies are​ boys

Rule

If;

P-value > significance level --- accept Null hypothesis

P-value < significance level --- reject Null hypothesis

Z score > Z(at 90% confidence interval) ---- reject Null hypothesis

Z score < Z(at 90% confidence interval) ------ accept Null hypothesis

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

For the case above;

Null hypothesis: H0: p = 0.515

Alternative hypothesis: Ha ≠ 0.515

Given;

n=850 represent the random sample taken

Test statistic z score can be calculated with the formula below;

z = (p^−po)/√{po(1−po)/n}

Where,

z= Test statistics

n = Sample size = 850

po = Null hypothesized value = 0.515

p^ = Observed proportion = 434/850 = 0.5106

Substituting the values we have

z = (0.5106-0.515)/√(0.515(1-0.515)/850)

z = −0.256677

z = −0.257

To determine the p value (test statistic) at 0.10 significance level, using a two tailed hypothesis.

P value = P(Z<-0.257) = 0.797

Since z at 0.10 significance level is between -1.645 and +1.645 and the z score for the test (z = -0.257) which falls with the region bounded by Z at 0.10 significance level. And also the one-tailed hypothesis P-value is 0.797 which is greater than 0.10. Then we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say that at 10% significance level the null hypothesis is valid.

5 0
3 years ago
A particular model rocket kit uses the scale 1 : 144. The actual rocket is 168ft tall. How tall will the model rocket be when co
Irina18 [472]

answer is equal to 168/144

7/6feet

5 0
3 years ago
For z = –2 + 2i, which graph represents z and –2z?
iVinArrow [24]

Answer:

Graph B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
In what ways do you follow a healthy diet?
andrey2020 [161]
By eating healthy and constantly working out
5 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of the three consecutive numbers is33 more than the smallest of the number. Find the numbers
    15·1 answer
  • Two physics students are doing a side competition during a game of bowling, seeing who can toss a ball with the larger momentum.
    11·1 answer
  • I need a quick response! Please help!
    7·1 answer
  • Scott took out a 4-year car loan for $5,500. He paid back a total of $7,370. What interest rate did he pay for this loan?
    8·1 answer
  • 4 cups equals how many ounces
    12·2 answers
  • Resuelve el problema aplicando las estrategias de solución de problemas.
    6·1 answer
  • If (3a + 3b + 1) (3a + 3b - 1) = 80, then a + b =
    14·1 answer
  • How many more students were enrolled at the University of Michigan in 1950 than in 1900
    5·1 answer
  • Help please ASAP !!<br> !!!!
    6·1 answer
  • Is x = 6 a solution to the equation 5(x – 3) = x + 13?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!