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
Tanzania [10]
3 years ago
15

What is the value of (4-2)^3-3X4

Mathematics
1 answer:
Mazyrski [523]3 years ago
6 0
<h2>Answer:</h2>

3 x^{4}-8=0

<h2>Given: </h2>

(4-2)^{3}-3 x^{4}

<h2>Step-by-step explanation:</h2>

In this problem, we need to find the value of the given expression for which we need to simplify the given expression.

\Rightarrow(4-2)^{3}-3 x^{4}=0

We need to solve the numbers within the parentheses.

\Rightarrow(2)^{3}-3 x^{4}=0

We can bring the constant one side and variables another side.

\Rightarrow 8=3 x^{4}

Taking fourth root for ‘8’ and ‘3’ will give numbers which are very tough to solve further.

Since, we cannot solve the above equation further. The value of the given equation remains,

\therefore 3 x^{4}-8=0

You might be interested in
If two sides of a triangle are proportional to the corresponding sides of another triagle and if their included angles are _____
harina [27]
The angles need to be congruent for the two triangles to be similar.

Hope this helps :)
5 0
3 years ago
Read 2 more answers
Help me In sick and don’t feel like doing their rn tbh
castortr0y [4]

Answer:

1.. \:  \: 64 - 40 = 24 \\ so.\% \:  \\  \frac{24}{40}  \times 100 = 60\% \\

............................

1-e

2-h

3-f

4- c

5-d

6-i

7-b

8-a

9-l

10-k

11-j

12-g

5 0
3 years ago
Researchers at the National Cancer Institute released the results of a study that investigated the effect of weed-killing herbic
jolli1 [7]

Answer:

The 95% confidence interval for the difference in the proportion of cancer diagnoses between the two groups is (0.3834, 0.5166).

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem and subtraction between normal variables.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

The randomly sampled 400 dogs from homes where an herbicide was used on a regular basis, diagnosing lymphoma in 230 of them.

This means that:

p_h = \frac{230}{400} = 0.575, s_h = \sqrt{\frac{0.575*0.425}{400}} = 0.0247

Of 200 dogs randomly sampled from homes where no herbicides were used, only 25 were found to have lymphoma.

This means that:

p_n = \frac{25}{200} = 0.125, s_n = \sqrt{\frac{0.125*0.875}{200}} = 0.0234

Distribution of the difference:

p = p_h - p_n = 0.575 - 0.125 = 0.45

s = \sqrt{s_h^2+s_n^2} = \sqrt{0.0247^2 + 0.0234^2} = 0.034

Confidence interval:

The confidence interval is:

p \pm zs

In which

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

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower bound is 0.45 - 1.96(0.034) = 0.3834

The upper bound is 0.45 + 1.96(0.034) = 0.5166

The 95% confidence interval for the difference in the proportion of cancer diagnoses between the two groups is (0.3834, 0.5166).

3 0
3 years ago
Sally is planning the school picnic and needs to decide what food vendor to
Marizza181 [45]

Answer:0.03

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
1,459,327 rounded to the nearest hundred
Ratling [72]

Answer:

1,459,000

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What are the roots of y = x2 – 3x – 10?
    5·1 answer
  • Can anyone help?? I don't understand.
    10·1 answer
  • Kylie drew a circle with a diameter of 8 cm. Paige drew a circle with a radius of 3 cm. Approximately how much larger is the are
    10·2 answers
  • Mrs. Williams shops at a store that has an annual membership fee of $30. Today she paid her annual membership and bought several
    14·2 answers
  • In circle O, AE and FC are diameters.Arc ED measure 17 degrees
    14·2 answers
  • Alice bought a 2-foot sub sandwich.The sandwich was cut into 10 pieces. Beth ate 1/5 of the sandwich , Camila ate 3/10 of the sa
    7·1 answer
  • The difference between the record high and low temperatures in Daytona Beach, Florida, is 87° F. The record high temperature is
    6·1 answer
  • I WILL GIVE YOU 20 POINTS AND THE BRAINLYEST
    13·2 answers
  • A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than
    15·1 answer
  • Find midpoint of 1,-3 and -1,-1
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!