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stiks02 [169]
3 years ago
5

Mark the statements that are true.

Mathematics
1 answer:
qaws [65]3 years ago
7 0

Answer:

Hi there!

The correct choices are: A, B, C

Step-by-step explanation:

π in radians equals to 180°

A is correct because 180/3 = 60

C is correct because 180/4 = 45

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A rectangular poster is to contain 722 square inches of print. the margins at the top and bottom of the poster are to be 2 inche
Delvig [45]
Let
x ----------> the height of the whole poster
<span>y ----------> the </span>width<span> of the whole poster
</span>
We need to minimize the area A=x*y

we know that
(x-4)*(y-2)=722
(y-2)=722/(x-4)
(y)=[722/(x-4)]+2

so
A(x)=x*y--------->A(x)=x*{[722/(x-4)]+2}
Need to minimize this function over x > 4

find the derivative------> A1 (x)
A1(x)=2*[8x²-8x-1428]/[(x-4)²]

for A1(x)=0
8x²-8x-1428=0
using a graph tool
gives x=13.87 in

(y)=[722/(x-4)]+2

y=[2x+714]/[x-4]-----> y=[2*13.87+714]/[13.87-4]-----> y=75.15 in

the answer is
<span>the dimensions of the poster will be
</span>the height of the whole poster is 13.87 in
the width of the whole poster is 75.15 in

6 0
3 years ago
How do you write 0.9 as a percentage?
mamaluj [8]
0.9 as a percentage would be 0.9% it doesn't really change
7 0
3 years ago
I don't understand how to do it can someone help me please!!!​
goblinko [34]

Answer:

813

Step-by-step explanation:

7 0
3 years ago
On a certain quiz with 25 questions, each correct answer is scored 4 points and each incorrect answer is scored –1 point. questi
Katarina [22]

x correct answers


23 - x incorrect answers


82 = 4x + -1(23 - x) = 3x - 23


105 = 5 x


x = 105/5 = 21


21 right 2 wrong 2 unanswered


Check: 4(21) -1(2) = 84-2=82 good



7 0
3 years ago
Read 2 more answers
At Downunder Farms, Jamie is packing kiwi fruit in shipping crates. Each tray
Artist 52 [7]

Answer:

348 kiwis

Step-by-step explanation:

Jamie is packing Kiwie fruits into a tray

Each tray holds 58 kiwis

He can put 6 trays in a crate

Hence when the craye is full the number of kiwis it will contain can be calculated as follows

°= 58×6

= 348 kiwis

6 0
3 years ago
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