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Rudiy27
3 years ago
11

Proszę o pomoc!! Daje naj.

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0

Answer:

a is 60 b is 48

Step-by-step explanation:and i will get the rest to you when i am done

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The area (in square centimeters) of a square coaster can be represented by d^2+8d+16 .
Katarina [22]

ANSWER

a. d+4

b. 4d+16

EXPLANATION

The area of the square coaster is represented by:

{d}^{2}  + 8d + 16

We split the middle term to obtain,

{d}^{2}  + 4d + 4d + 16

We factor by grouping to get,

d(d + 4) + 4(d + 4)

(d + 4)(d + 4) =  {(d + 4)}^{2}

Since area of a square is l² , it means the side length of the square is

l = d + 4

b) The perimeter of a square is given by

P=4l

We substitute the length in terms of d, to obtain;

P=4(d + 4)

Or

P=4d + 16

7 0
3 years ago
Read 2 more answers
A full-service salon charges $15.00 for a haircut and $0.45 per hair roller used in a perm. What is the minimum number of hair r
IrinaK [193]

Answer:

43 hair rollers.

Step-by-step explanation:

The cost of the haircut ($15.00) and the hair rollers (0.45*43) would equal $34.35, just passing the minimum amount of $34.00.

6 0
3 years ago
64=[(96 divided by 8) times 5]-42
bogdanovich [222]

Answer:

that statement is not true

Step-by-step explanation:

64=[(96÷8)5}-42

64={(12)5} - 42

64= (60)-42

64=18

but that with subtraction. if you multiply 60 by negative 42 you get -2520 which is still not true

7 0
3 years ago
Which of the following is an arithmetic sequence? <br> 0,2,4,6<br> 1,2,4,8<br> 1,4,8,13
STatiana [176]
It is probably 0,2,4,6 because other ones go "out of the sequence".

Hope this helps. :)
8 0
3 years ago
Hue is arranging chairs. She can form 2 rows of a given length with 2 chairs left over, or 6 rows of that same length if she get
Nady [450]
There are 7 chairs in each row length.
Step-by-step explanation:
Let number of chairs in 1 row be 'x'.
Let total number of chairs be 'y'.
Given:
Hue can form 6 rows of a given length with 3 chairs left over.
It means that Total number of chairs is equal to chairs in 1 rows multiplied by number of rows which is 6 plus number of chairs which is left which is 3.
Framing in equation form we get.

Also Given:
Hue can form 8 rows of that same length if she gets 11 more chairs.
It means that Total number of chairs is equal to chairs in 1 rows multiplied by number of rows which is 8 minus number of chairs which is required more which is 11.
Framing in equation form we get.

From equation 1 and equation 2 we can say that L.H.S is same.
So according to law of transitivity we get;

Combining like terms we get;

Using Subtraction and Addition property we get;

Now Using Division Property we will divide both side by 2.

Hence there are 7 chairs in each row length.
8 0
3 years ago
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