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3 years ago

A square has a side length of (2x + 4) inches.

Mathematics

2 answers:

Oksi-84 [34.3K]3 years ago

5 0

Answer:

The answer is C, E and F .

Step-by-step explanation:

Given that the area of square is, Area = length×width. In a square, all sides are equal so you have to substitute (2x+4) into the formula :

Let length be (2x+4) inches,

Let width be (2x+4) inches,

Area = (2x+4)(2x+4)

= (2x+4)² (option C)

= 4x² + 16x + 16 (option F)

= 4(x² + 4x + 4) ( Factorize )

= 4(x+2)² (option E)

You can use the formula, (a+b)² = a² + 2ab + b² to evaluate quickly.

n200080 [17]3 years ago

4 0

Answer will be C E and F
The solution are the same as the another person

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A scientist listed the volumes, in milliliters, of some liquids used in an experiment.

Aloiza [94]

Answer:

B) 1.078 < 1.23 (T)

Step-by-step explanation:

A) 1.23 < 1.203 (F)

B) 1.078 < 1.23 (T)

C) 1.17 > 1.203 (F)

D) 1.078 > 1.17 (F)

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3 years ago

Read 2 more answers

Help me please, it dues by monday

Lera25 [3.4K]

The equation that you must use is y=15x+15
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2 years ago

A student randomly draws a card from a standard deck and checks to see if it is his favorite suit he then returned to card to th

tensa zangetsu [6.8K]

Answer:

The binomial probability formula can not be used for this experiment because it does not state the number of times he expects to draw his favorite suit.

Step-by-step explanation:

The binomial probability formula is expressed as follows:

P (k success in n trials) = $\left \{ {{n \atop k} \right.$ $p^{k}$ $q^{n-k}$

n = number of trials, k = number of successes, n-k = number of failures, p = probability of success in one trial and q = 1 - p = probability of failure in one trial.

In the given problem, all of the variables are known except for 'k', the amount of times that the student predicts he will draw his favorite suit.

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3 years ago

7 pipes fill a tank in 50 minutes. How many minutes does it take if there are 11 pipes?

Alekssandra [29.7K]

Answer: With 11 pipes, you need 31.82 minutes to fill the tank.

Step-by-step explanation:

Let's define R as the rate at which one single pipe can fill a tank.

We know that 7 of them can fill a tank in 50 minutes, then we have the equation:

7*R*50min = 1 tank

Whit this equation, we can find the value of R:

R = 1 tank/(7*50min) = (1/350) tank/min.

Now that we know the value of R, we can do the same calculation but now with 11 pipes.

Then the time needed to fill the tank, T, is such that:

11*(1/350 tank/min)*T = 1 tank

We need to isolate T.

T = 1 tank/(11*(1/350 tank/min)) = 31.82 min

With 11 pipes, you need 31.82 minutes to fill the tank.

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3 years ago

My soccer team has 16 players. I have to choose a starting lineup of a goalie and 10 regular players (the regular players are in

ASHA 777 [7]

Answer:

3003

Step-by-step explanation:

We want to find out how many ways we can choose 10 players among 15 players (since the goalie is not interchangeable)

The number of different lineups you can have can be found by using combination:

$^{15}C_{10} = \frac{15!}{(15 - 10)! 10!}\\ \\= \frac{15!}{5! * 10!} \\\\= 3003$

There are 3003 different lineups that can be chosen.

6 0

3 years ago