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Marina86 [1]
3 years ago
14

Задача

Mathematics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

<h3>Sorry. I can't answer your question because I can't understand that language. Can you put translate it in English? </h3>
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if a perimeter of a rectangle is 63 cm2 and the breadth is 9 cm, what is the length of the rectangle?
bekas [8.4K]
The length of the rectangle is 22.5
3 0
3 years ago
(15 PTS answer asap pls) Can someone explain how I got this wrong? I´m too scared to ask my teacher because we´ve moved on alrea
leva [86]

Answer:

You got it wrong because you didn't distribute the 7 to the 3j.

Step-by-step explanation:

The answer should be 21j +70.

8 0
3 years ago
Read 2 more answers
Please help!! Due really soon!
Alisiya [41]

9514 1404 393

Answer:

  f(x) = 6x +1

Step-by-step explanation:

Differences in x-values (first row) are 1, 1, 1.

Differences in y-values (second row) are 6, 6, 6.

The constant ratio of differences (6/1) tells you the function is linear, and has a slope of m = 6/1 = 6.

Using the first point in the form ...

  y = mx + b

we have ...

  y = 6x + b

  7 = 6·1 + b . . . . (x, y) = (1, 7)

  1 = b . . . . . . subtract 6

Then the equation can be written ...

  y = 6x +1

In functional form, this is ...

  f(x) = 6x +1

4 0
3 years ago
Malcolm is given a plan for a garden. He expresses the perimeter as 2(x+8) + 2(3x). WHAT WILL BE THE COEFFICIENT OF X WHEN HE SI
CaHeK987 [17]

Answer:

The coefficient of x is 8

Step-by-step explanation:

Given

P = 2(x+8) + 2(3x) --- Perimeter

Required

Determine the coefficient of x

P = 2(x+8) + 2(3x)

Open bracket

P = 2x + 16 + 6x

Collect like terms

P = 2x + 6x+ 16

P = 8x+ 16

<em>The coefficient of x is 8</em>

4 0
3 years ago
Solve the following quadratic equation by factorisation method 3 x square - 2 root 6 × + 2 =0​
frozen [14]
3x^2 -2root(6)x + 2 = 0

(root(3)x)^2 -2[root(3)x]root(2)+ (root(2))^2 = 0

let a = root(3)x and b = root(2)

a^2 -2ab + b^2 = 0

(a - b)^2 = 0

by the null factor rule,

a - b = 0

sub back in a and b

root(3)x = root(2)

x = root(3)/root(3)
6 0
3 years ago
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