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sveta [45]
3 years ago
6

I reallyyyy need help on this

Mathematics
1 answer:
ycow [4]3 years ago
6 0

Answer:

4

Step-by-step explanation:

h(k(3))=\sqrt{2(3)+7+3}

         =4

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State the open intervals over which the function is (a) increasing, (b) decreasing or (c) constant
ipn [44]

Answer:

a. [-3, 4]

b. (-inf, -3]

c. [4, inf)

Step-by-step explanation:

Our intervals will represent the x-values

We know that since there's an arrow pointing to the left of the line that it goes on infinitely

Same thing when the arrow is going to the right

Then we can just looking at the x-values on the graph for the intervals where it starts and stops

Hope this helps

Best of luck

3 0
2 years ago
Pat wants to create s rectangular playpen for her dogs in her backyard. And estimates the dogs will need 600 square feet. She al
Ira Lisetskai [31]
I found width=13.72 ft and length=43.72 ft.
Call one dimension of the rectangle x, the other will be x+30
You want an area A=600 ft^2 but A=length x width=x*(x+30)=600
Rearranging you get:
x^{2} +30x-600=0
solving this quadratic equation you get a negative solution and a positive one that gives your result.

8 0
3 years ago
Find the value of x for the given value of y.<br> y = x/4 -7; y = 2
babymother [125]

Answer:36

Step-by-step explanation:

2=x/4-7

9=x/4

36=x

7 0
2 years ago
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What is the surface area of this cuboid?<br> height: 5cm<br> length: 9cm<br> width: 4cm
bazaltina [42]

Answer:

180

Step-by-step explanation:

formulae=H×L×W so....5×9×4=180

4 0
3 years ago
Higher interest rate mortgage loans made to people with poor credit
Mrrafil [7]

I don't know what you have to do but I'm trying to do my first answer srry

6 0
2 years ago
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