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crimeas [40]
3 years ago
11

I do not even know where to begin. Please help.

Mathematics
1 answer:
xenn [34]3 years ago
5 0
F(x) = 2x + 1  when x <= -5
Now -10 is less than -5 so we plug x = -10 into 2x +1:-

f(-10) = 2(-10) + 1 =  -19 answer

Now f(x) = x^2 when  -5< x < 5
x =2  is within this range so f(2) = 2^2 = 4 answer

You can calculate the  other 3  values by a similar method
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How do I write this in sigma notation?
tamaranim1 [39]

Answer:

\frac{143}{60}

Step-by-step explanation:

6 0
3 years ago
Pls help. I offer 50.<br><br> A. 3.6<br> B. 3.8<br> C. 3.9<br> D. 4.0
lianna [129]

Answer:

  • B. 3.8

Step-by-step explanation:

<u>Expected egg production is:</u>

  • 3*0.25+4*0.7+5*0.05 = 3.8

Correct choice is B

3 0
3 years ago
Read 2 more answers
What are the coordinates of the vertex of y = –x2 – 12x – 32?
LekaFEV [45]

Answer:

x^2=12x-32

Step-by-step explanation:

try to factor by splitting the middle term example x^2-(12*x-32)=0

multiply the coefficient of the first term by the the constant 1 X 32=32

find two factors of 32 whose sum equals the coefficient of the middle term which is answer keys -32 +-1  =-33

-16+-2=-18

-8+4=-12.

6 0
3 years ago
Simplify the following expression: '5x - 8 + 3y + 10x - 8y'
monitta

Answer:

-5x-8-11y

Step-by-step

Because you shift 10x to -10x and then 5x-10x = -5x

You leave the -8 the same

You do 3y to -3y and  then do -3y -8y = -11y

Hence altogether you get, -5x -8 -11y

6 0
3 years ago
Can some one plz help me?! The LATERAL Surface Area for the shape below is:
love history [14]

Answer:

430 cm2

Step-by-step explanation:

The Lateral Surface Area of it is equal to:

Area of ABCD + Area of A'B'C'D' + Area of ABB'A' + Area of DCC'D' + Area of ADD'A' + Area of BCC'B'

As ABCDA'B'C'D' is a rectangle prism, so that:

+) Area of ABCD = Area of A'B'C'D'

+) Area of ABB'A' = Area of DCC'D'

+) Area of ADD'A' = Area of BCC'B'

=> Total lateral surface area = 2. Area ABCD + 2. Area ABB'A + 2. Area ADD'A

As ABCDA'B'C'D' is a rectangle prism, so that we have: ABCD, ABB'A', ADD'A' are rectangles.

The formula to calculate the area of rectangle is: Area = Length x Width

We have:

+) Area ABCD = AB x BC =11 x 10 = 110 cm2

+) Area ABB'A = AB x AA' = 11 x 5 = 55 cm2

+) Area ADD'A = AA' x A'D' = 5 x 10 = 50cm2

Total lateral surface area = 2. Area ABCD + 2. Area ABB'A + 2. Area ADD'A

= 2 x 110 + 2 x 55 + 2 x 50 = 430 cm2

4 0
3 years ago
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