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valina [46]
3 years ago
5

2. Find the perimeter and area of a square with a 7-ft side.

Mathematics
1 answer:
Rina8888 [55]3 years ago
7 0

Answer:

Step-by-step explanation:

Perimeter 4L = 28

Area L^2 = 49

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When x=-2 and y=-1,-x^2-5xy+5y^3 is
kirill115 [55]

Answer:

-19

Step-by-step explanation:

Evaluate -x^2 - 5 x y + 5 y^3 where x = -2 and y = -1:

-x^2 - 5 x y + 5 y^3 = -(-2)^2 - -2 (-5) + (-1)^3×5

(-2)^2 = 4:

-4 - -5 (-2) + 5×(-1)^3

(-1)^3 = -1:

-4 - -5 (-2) + 5×-1

-5 (-2) = 10:

-4 - 10 - 5

-4 - 10 - 5 = -(4 + 10 + 5):

-(4 + 10 + 5)

| 1 | 0

| | 5

+ | | 4

| 1 | 9:

Answer:  -19

5 0
3 years ago
How do you solve this problem?
vodomira [7]
7x^2 - 32x - 60

Factor by grouping,

(x - 6) (7x + 10)
6 0
2 years ago
The interquartile range of this data set
Natali [406]
The interquartile range is 20 you take Q3 in the graph which is 30 and the Q1 in the graph which is 10 then you subtract Q3-Q1 so 30-10 and get 20
6 0
1 year ago
Read 2 more answers
the function f(t) = 5 cos(pi/4*t) + 11 represents the tide in dark sea. it has a maximum of 16 feet when time (t) is 0 and a min
Allushta [10]

The height of the tide after eight hours is 16 feet.

<h3>How to illustrate the function?</h3>

From the information given, the function is given as 5cos (π/4)t + 11.

In this case, the time is given as eight hours. This will be:

f(8) = 5 × cos (π/4) × 8 + 11

f(8) = 5 × cos(2π) + 11

= (5 × 0.999) + 11

= 16 feet

The height is 16 feet.

Learn more about functions on:

brainly.com/question/5957029

#SPJ1

6 0
2 years ago
Penny bought a juice squeezer for $10. She can make a bottle of orange juice for a cost of $0.75, and she sells her orange juice
azamat
Is there more to this question?

7 0
3 years ago
Read 2 more answers
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