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Lapatulllka [165]
4 years ago
9

What is the value of j(-5)

Mathematics
1 answer:
elena55 [62]4 years ago
6 0

f(x)=\left\{\begin{array}{ccc}2-x&if&x\leq-5\\x+11&if&x > -5\end{array}\right\\\\-5\leq-5\ \text{therefore for}\ x=-5,\ f(x)=2-x\\\\f(-5)=2-(-5)=2+5=7

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Rewrite the expression by using grouping symbols
Elan Coil [88]

Answer:

D) y(5+a)

Step-by-step explanation:

Given expression:

y\times5+y\times a

The above expression can be rewritten using grouping symbols by using properties of equality.

We apply distributive property of multiplication according to which:

ab+cb=b(a+c)

the product of a number and each addend individually added together is equal to the product of that number  and sum of the addends.

So, we can write

y\times5+y\times a=y(5+a)

5 0
3 years ago
You are having a family meeting during the a epidemic. You want to follow the guidelines and know everyone has to stay 6 feet ap
Lady_Fox [76]

Answer:

a.

Total No. of People = 8 people

b.

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Hence, we can not fit the same amount of people in both rooms.

Step-by-step explanation:

a.

Here, the dimensions of the room are 12 ft by 24 ft. So, in order to maintain the 6 ft distance, we can allow following number of people in it.

No. of people along 24 ft dimension = 24 ft/6 ft

No. of people along 24 ft dimension = 4

No. of rows along 12 ft dimension = 12 ft/6 ft

No. of rows along 12 ft dimension = 2

So, the total no. of people is given as:

Total No. of People = (People along 24 ft)(Rows along 12 ft)

Total No. of People = (4)(2)

<u>Total No. of People = 8 people</u>

<u></u>

b.

Here, the dimensions of the room are 16 ft by 18 ft. So, in order to maintain the 6 ft distance, we can allow following number of people in it.

No. of people along 16 ft dimension = 16 ft/6 ft

No. of people along 16 ft dimension = 2.67

In order to maintain minimum 6 ft distance the no. of people is rounded down to 2.

No. of people along 16 ft dimension = 2

No. of rows along 18 ft dimension = 18 ft/6 ft

No. of rows along 18 ft dimension = 3

So, the total no. of people is given as:

Total No. of People = (People along 24 ft)(Rows along 12 ft)

Total No. of People = (2)(3)

<u>Total No. of People = 6 people</u>

<u>Hence, we can not fit the same amount of people in both rooms.</u>

<u></u>

8 0
3 years ago
Read 2 more answers
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Dima020 [189]
We can find the answer by solving the two equations simultaneously.

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equation 1 = equation 2:
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But x >= 0 (the question says it's a height above the water), so x = 5

Substituting x = 5 into one of the equations:
y = 10 - x
y = 10 - 5
y = 5

So the answer is C
7 0
4 years ago
Find the area and simplify your answer
GarryVolchara [31]

{3x}^{2}  + 2x - 1

I think this is the answer

6 0
3 years ago
Terry planted 12 pepper plants he planted twice as many green pepper plants is red pepper plants how many green pepper plants ar
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Let x = green pepper plants
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3 years ago
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