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
nekit [7.7K]
2 years ago
14

Evaluate: 34−(−4)2 Write the value in standard form.

Mathematics
1 answer:
Fiesta28 [93]2 years ago
3 0

-4 ×2 =8

34 -(-4)2

34 + 8 (minus minus becomes +)

42

You might be interested in
What percentage of 40 is 8?​
Firlakuza [10]

Answer:

20%

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
3. Andrew wants to buy exercise equipment that costs $140 and the
sertanlavr [38]

Answer:

23

Step-by-step explanation:

just trust me

5 0
3 years ago
Read 2 more answers
From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-ciga
jasenka [17]

Answer:

The 90% confidence interval is (0.1897, 0.2285).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}

For this problem, we have that:

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-cigarette) in the past week. This means that n = 1186, \pi = \frac{248}{1186} = 0.2091

Construct a 90% confidence interval to estimate the population proportion of Americans age 18-29 who vaped in the past week.

So \alpha = 0.10 , z is the value of Z that has a pvalue of 1 - \frac{0.10}{2} = 0.95, so z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 - 1.645\sqrt{\frac{0.2091*0.7909}{1186}} = 0.1897

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 + 1.645\sqrt{\frac{0.2091*0.7909}= 0.2285

The 90% confidence interval is (0.1897, 0.2285).

3 0
3 years ago
ملی
bonufazy [111]

Answer:

Rs 75,000

Step-by-step explanation:

Let the total value of property be x

If one-fifth of that is given to son

property with son = 1/5 of total value of property = 1/5 of x = x/5

If one-third of that is given to daughter

property with daughter = 1/3 of total value of property = 1/3 of x = x/3

remaining property after giving the portions to son and daughter

= total value of property - property with son -property with daughter

= x - x/5 - x/3

taking LCM of 5 and 3 (15)

= (15x - 3x - 5x)/15

= 7x/15

Given that remaining property was given to wife

property with wife = 7x/15

it is given that wife got 35000 Rs

thus,

7x/15 = 35,000

7x = 35,000*15 = 525,000

x =  525,000/7 = 75,000

Thus, total worth of property =Rs 75,000 Answer

4 0
3 years ago
Find the area for the following figure
iren2701 [21]

Answer:

The answer I got was 15 3/4 ft 2

4 0
2 years ago
Other questions:
  • What is (6x-5) + (8x-50)
    15·2 answers
  • Let a, b, c, d be four integers (not necessarily distinct) in the set {1, 2, 3, 4, 5}. The number of polynomials x4 + ax3 + bx2
    6·1 answer
  • How are these two constants of proportionality related to each other?
    12·1 answer
  • What does 6t equal ?
    10·1 answer
  • Select the correct answer.
    10·1 answer
  • In Minneapolis, it is 20 degrees colder than it is in Houston
    14·1 answer
  • Which number is less than 3/20<br> A 2/11 <br> B1/6<br> C 13%<br> D 0.15
    12·1 answer
  • What is the slope of a line perpendicular to the line whose equation is x-y=6
    5·1 answer
  • Graph the image of the polygon after the given rotation. 90 degrees
    7·1 answer
  • Solve, using linear combination.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!