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3 years ago

19 and a half plus 31 and seven eights

Mathematics

2 answers:

sammy [17]3 years ago

8 0

I think the answer is 41 3/8

Contact [7]3 years ago

5 0

411/8! hope this helps you!

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What is the factored form of a2 – 121?

Flura [38]

Answer:

The factored form $a^2-121$ is $(a+11)(a-11)$ .

Step-by-step explanation:

Given : $a^2-121$

We have to write the given expression in factored form.

Factor form of an expression is writing the expression in lower power form such that the product of factors given the original expression

Consider the given expression $a^2-121$ .

We know the algebraic identity $x^2-y^2=(x+y)(x-y)$

Here $a^2-121=a^2-(11)^2$ .

Comparing with identity stated above , we have x= a , b = 11 , thus, we get

$a^2-(11)^2=(a+11)(a-11)$ .

Thus, the factored form $a^2-121$ is $(a+11)(a-11)$ .

7 0

3 years ago

What is the volume of the figure below, which is composed of two cubes with side lengths of 7 units?

wariber [46]

Answer:

B) 686 cubic units

Step-by-step explanation:

If one cube has a side length of 7, then it equals to 343 cubic units. Since there are 2 cubes, this translates to 686 cubic units.

6 0

2 years ago

The lengths of plate glass parts are measured to the nearest 1/10 mm. The lengths are discretely and uniformly distributed with

vagabundo [1.1K]

For uniform, the mean is:

x¯ = (590.0+590.9) 2
The variance is:
σ = sqrt [ (n2−1) /12 ]

 Where n=10.

The answer would be 590.45

I hope my answer has come to your help. Have a nice day ahead and may God bless you always!

8 0

3 years ago

On a track and field team, 8% of the members run only long-distance, 32% compete only in field events, and 12% are sprinters onl

kondor19780726 [428]

Answer:

0.40

Step-by-step explanation:

Members who run only long distance = 8%

So, probability that a member will run only long distance = P(A) = 0.08

Members who compete only in field events = 32%

So, probability that a member will compete only in field events = P(B) 0.32

Members who are sprinters = 12%

So, probability that a member is sprinter = P(C) 0.12

We have to calculate the probability that a randomly chosen team member runs only long-distance or competes only in field events. i.e we have to find P(A or B). Since these events cannot occur at the same time, we can write:

P(A or B) = P(A) + P(B)

Using the values, we get:

P(A or B) = 0.08 + 0.32 = 0.40

Thus, the probability that a randomly chosen team member runs only long-distance or competes only in field events is 0.40

7 0

3 years ago

The roof of a shack is drawn below (not to scale). What is the slope of the roof?

Natalka [10]

Answer:

2/3.......... :)

7 0

3 years ago

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