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seropon [69]
3 years ago
5

What is the value of 2x{6+[12/(3+1)}-1

Mathematics
2 answers:
Nata [24]3 years ago
5 0
2 {6 + [12/(3 + 1)]} - 1
2 { 6 + 12/4} - 1
2 { 6 + 3 } - 1
2 {9} - 1
18 - 1
17 <===
Bond [772]3 years ago
4 0
Start with innermost parenthesis-(3+1)=4
then the next-12/4=3
then add 6=9
then multiply by the 2=18
then subtract 1

=17
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Find the magnitude of v. v = -3i+ 40 + 7k v =
kherson [118]

Answer:

The magnitude of the given vector is 40.72 units.

Step-by-step explanation:

The given vector is v=-3\widehat{i}+40\widehat{j}+7\widehat{k}

We know that for any vector 'r' \overrightarrow{r}=x\widehat{i}+y\widehat{j}+z\widehat{k} the magnitude is given by

|r|=\sqrt{x^{2}+y^{2}+z^{2}}

Comparing with the given vector we have

x = -3

y = 40

z = 7

Thus the magnitude equals  

|v|=\sqrt{(-3)^{2}+40^{2}+7^{2}}

|v|=40.72

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3 years ago
Apply the distributive property to factor out the greatest common factor 32 + 44 =
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Answer:

4(8+11)

Step-by-step explanation:

32 + 44     Divide the entire equation by 4 =

8 + 11         Put in parentheses and put 4 in the front =

4(8+11)

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3 years ago
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Maru [420]

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6 0
3 years ago
Twenty years ago, bruce wayne bought a batmobile for 250250250 million dollars. as the crime in gotham city has been down for a
dem82 [27]

Bruce will receive $160 million for the batmobile.

<h3>What is percentage?</h3>

The term "percentage" comes from the Latin phrase "per centum," meaning means "by the hundred." Percentages is fractions with a denominator of 100.

In other terms, it is the relationship between portion and whole in which the value of the whole is always assumed to be 100.

Calculating a percentage implies determining a portion of a whole in term of 100. A percentage can be calculated in two ways:

  1. The unitary technique is used.
  2. By adjusting the fraction's denominator to 100.
  3. It must be noted that second method of percentage calculation is not employed when the denominator isn't a factor of 100. In such circumstances, we employ the unitary technique.

Now, according to the question;

Given that prices fall about 20% every decade;

Thus,  100% - 20% = 80%

He paid $250 million for a batmobile twenty years ago.

Let Bruce to receive x millions of dollars for the batmobile.

⇒ 80% of x = 80/100 × x = 4/5 x

⇒ x = 250(4/5)(4/5)

⇒ x = 250(16/25)

⇒ x = 160

As a result, Bruce will receive 160 millions of dollars for such batmobile.

To know more about the percentage, here

brainly.com/question/317717

#SPJ4

The correct question is-

Twenty years ago, Bruce Wayne bought a batmobile for 250 million dollars. As the crime in Gotham city

has been down for a while, he plans to sell it.

How much can he get for the batmobile if the price goes down by 20% every decade? million dollars

6 0
2 years ago
Ammeters produced by a manufacturer are marketed under the specification that the standard deviation of gauge readings is no lar
AURORKA [14]

Answer:

0.101

Step-by-step explanation:

Given that :

Standard deviation, s = 0.2

Sample variance, s² = 0.0653

Sample size, n = 10

Population variance = σ² = 0.04

We use the Chi square distribution :

(n - 1)s² / σ²

For P(s² ≥ 0.065)

(n - 1)s² / σ² = (10 - 1)*0.0653 / 0.04

(n - 1)s² / σ² = 0.585 / 0.04 = 14.625

P(s² ≥ 14.625) = 0.101 ( chi squee calculator).

8 0
3 years ago
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