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2 years ago

2 (x + 1) - 3 cuando x = 6

2 answers:

6 0

This question you are asking is order of operations also know as PEMDAS: please excuse my dear aunt sally is a great way to remember it.

P: parenthesis

E: exponents

M: multiply (From left to right)

> These 2 can be switched. As long as you are going left to right, you do which one comes first.

D: divide (From left to right)

A: add (From left to right)

> These 2 can be switched. As long as you are going left to right, you do which one comes first.

S: subtract (From left to right)

The answer is: 11

Explanation:

If x is 6, then we can start filling things in. Instead of 2(x+1)-3 we can put 2(6+1)-3. Then we do the parenthesis first because of pemdas. we get 6+1= 7. Then we lay it out. 2 (7) -3. 2 times 7 = 14. Last we subtract 3. 14-3= 11. :) That i how we get the answer. Hope this helps :)

katen-ka-za [31]2 years ago

3 0

Answer:

Step-by-step explanation:

6+1=7

7x2=14

14-3=11

espero que esto ayude

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A sailor is looking at a kite. If he is looking at the kite at an angle of elevation of 36and the distance from the boat to the

Nonamiya [84]

Answer:

Height of the kite from the ground is 29.2 feet.

Step-by-step explanation:

For better explanation of the solution, see the figure attached :

The angle formed by the height of kite to that of the surface of the ground is right angle.

⇒ m∠ABC = 90°

Let angle of elevation be θ

Now, to find height of the kite : find length of AB

In right angled triangle ABC , using tan rule, we have $\tan\theta=\frac{Perpendicular}{Base}\\\\\tan36^{\circ}=\frac{AB}{BC}\\\\\implies \tan36^{\circ}=\frac{AB}{40}\\\\\implies AB=0.73\times 40\\\\\bf\implies AB=29.2\thinspace{ feet}$

Hence, Height of the kite from the ground is 29.2 feet.

7 0

2 years ago

A triangle has a base length of 3.1 cm and corresponding height of 4.2 cm, correct to

Svetradugi [14.3K]

Answer:

The upper bound of the area is 6.69375 cm²

The lower bound of the area is 6.32875 cm²

Step-by-step explanation:

The question relates to measurements and accuracy

The given information are;

The base length of the triangle = 3.1 cm

The height of the triangle = 4.2 cm correct to one decimal place

The lower bound for the base length of the triangle = 3.05 cm

The upper bound for the base length of the triangle = 3.15 cm

Similarly, the lower bound for the height of the triangle = 4.15 cm

The upper bound for the height of the triangle = 4.25 cm

The formula for calculating the area of a triangle is given by the following formula;

Area of a triangle = 1/2 × Base × Height

The upper bound of the area = 1/2 × The upper bound of the base × The upper bound of the height

The upper bound of the area = 1/2 × 3.15 × 4.25 = 6.69375 cm²

The upper bound of the area = 6.69375 cm²

The lower bound of the area = 1/2 × The lower bound of the base × The lower bound of the height

∴ The lower bound of the area = 1/2 × 3.05 × 4.15 = 6.32875 cm²

The lower bound of the area = 6.32875 cm²

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2 years ago

Jerome is a pharmacy technician that filled a prescription that use 1/4 bottle of ibuprofen. How many pills did jerome use for t

Neporo4naja [7]

It is clearly mentioned in the question that each bottle of ibuprofen has 1000 pills.

Now, 1/4 bottle of ibuprofen is used to make the prescription.

So, if one bottle of ibuprofen has 1000 pills and 1/4 1/4 bottle of ibuprofen is used to make the prescription, then Jerome obviously used $\frac{1000}{4}=250$ pills of ibuprofen to make the prescription.