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3 years ago

Which expression is equivalent to a + (c + 7)?

2 answers:

7 0

Answer: D. (a+c)+7
Step-by-Step Explanation:
Consider the association property of addition. The way you group addition won’t affect the sum. Therefore D. is the right answer.

Vikki [24]3 years ago

3 0

Answer:

(a+c)+7

Step-by-step explanation:

this is called the Associative Property

(x+y)+z=x+(y+z)

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UKNOWN LINKS WILL BE REPORTED questions in the picture

lora16 [44]

Answer:

297/27=11

Step-by-step explanation:

6 0

2 years ago

If sin 0 = 7/25, find csc 0

kipiarov [429]

Answer:

$csc(\theta)=\frac{25}{7}$

Step-by-step explanation:

We know that:

$sin(\theta)=\frac{7}{25}$

And we want to find:

$csc(\theta)$

Remember that there is a trigonometric identity that relates the $sin(\theta)$ function with the $csc(\theta)$ function

$csc(\theta)=\frac{1}{sin(\theta)}$

Then if $sin(\theta)=\frac{7}{25}$ this means that:

$csc(\theta)=\frac{1}{\frac{7}{25}}$

Finally:

$csc(\theta)=\frac{25}{7}$

3 0

3 years ago

Read 2 more answers

The expression 3P2 represents the number of ways of:?

Vsevolod [243]

The expression 3P2 can also be read as "permutation of 3 taken 2". This represents the number of ways in which the 3 items are arranged with the emphasis on the arrangement of the first two other items.

5 0

2 years ago

Read 2 more answers

The mean weight 20 students in a room is 65 kg one student one student who weight is 88kg went into the room what is the new mea

umka2103 [35]

The new mean is 66.09

<u>Explanation:</u>

Mean weight of 20 students = 65kg

One student with 88kg entered the room.

New mean = ?

$\frac{x_1+x_2+....+x_2_0}{20} = 65$