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3 years ago

X increased by 6 algebraic expression

Mathematics

2 answers:

Galina-37 [17]3 years ago

6 0

Answer:

x + 6

Step-by-step explanation:

ddd [48]3 years ago

3 0

Step-by-step explanation:

x increased by 6 is :

= x+6

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A gardener uses a rainwater collection barrel (storage container) shaped like a right cylinder to store water for his plants. Th

Mariulka [41]

Answer:

Option C

Step-by-step explanation:

Barrel (storage container) is enclosed in a small square fence.

Since, barrel is touching the surfaces from four sides of the cylindrical barrel.

Length of each side of the square fence = Diameter of the barrel

= 2(radius of the barrel)

= 2(1.5)

= 3 feet

Perimeter of a square = 4(Side of a square)

= 4(3)

= 12 feet

Therefore, Option C will be the correct option.

6 0

3 years ago

I’m confused can someone help?

tia_tia [17]

Answer:

(a) check the first one, and the second one

(b) check the last one

Step-by-step explanation:

This is quite easy actually.

3x+24 = 3 * x + 3 * 8

3(x+8) using distribute property.

3x + 24

You cannot simplify 3x+24 any further

And 3(8x+1) just doesn't work

since it's multiplying

The "*" is an X sign

The first, second, and third are not correct

But the last one is.

5 0

2 years ago

What is 23% of 250<br><br> 56 is what percent of 200<br><br> 37 is what percent of 60

aleksandr82 [10.1K]

Answer:

<h2>23 percent of 250= 57.5</h2>

<h2>56 is what percent of 200= 28</h2>

<h2>36 is what percent of 60= 61.67</h2>

5 0

3 years ago

How many 1/3 - hour shifts are in 3 hours

Alex Ar [27]

Each (1/3) shift would be 20 min. There are 3 shifts every hour and there are 3hrs.

3x3= 9 shifts

3 0

3 years ago

New heat lamps are reported to have the mean lifespan of 100 hours with a standard deviation of 15 hours. Before replacing their

Tom [10]

Answer:

The correct option is C

The correct option is A

The correct option is B

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 100$

The standard deviation is $\sigma = 15$

The sample size is $n = 36$

The sample mean is $\= x = 105.1$

Generally

The null hypothesis is $H_o: \mu = 100 \ hours$

The alternative hypothesis is $H_a : \mu \ne 100\ hours$

Given that the null hypothesis is true then the distribution of sample means $\mu_{\= x }$ , from a sample size of 36 is mathematically represented as

$\mu_{\= x } = \mu$

=> $\mu_{\= x } = 100$

According to the Central Limit Theorem the test stated in the question is approximately normally distributed if the sample size is sufficiently large $(n > 30 )$ so given that the sample size is large n = 36