All categories

3 years ago

The circumstances of Z is 84cm. What is the length of XY (the mirror arc)

Mathematics

1 answer:

Serga [27]3 years ago

8 0

Answer:

Step-by-step explanation:

arc length = circumference × fraction of circle

= 84 × $\frac{90}{360}$ = 21 cm

You might be interested in

I need help! -4y-4+(-3)

faltersainse [42]

Answer:

-4y-7

Step-by-step explanation:

-4y-4-3

-4y-7

3 0

3 years ago

Plz help and explain

Over [174]

Answer:

7.975

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The value of y varies directly as the square of x and y=27 when x=9. Find the equation represents this relationship. Report the

skad [1K]

Answer:

The relation between x and y is

$y=\frac13 x^2$

Step-by-step explanation:

Given that,

The value of y varies directly as the square of x.

$y\propto x^2$

$\Rightarrow y=rx^2$

where r is constant of proportional.

Given that,

y= 27 and x=9

Plug y= 27 and x=9 in above relation

$y=rx^2$

$\therefore 27=r(9)^2$

$\Rightarrow 27 = r.81$

$\Rightarrow r=\frac{27}{81}$

$\Rightarrow r=\frac{1}{3}$

The relation between x and y is

$y=\frac13 x^2$

8 0

3 years ago

13 and 4/87 to the nearest half

Arte-miy333 [17]

Answer:

Step-by-step explanation:

4/87 is around 0.046

13+0.046=13.046

13.046 to the nearest half is 13

3 0

2 years ago

Help i am struggling

Nat2105 [25]

The model shows that we are to arrange the factors based on the terms in the square box. The factored form is (5x+2)(2x-1)

<h3>Factorizing quadratic equations</h3>

Factorization is a way of simplify. Given the equation 10x² -x - 2

Factorize

10x² -x - 2

10x² - 5x + 4x - 2

5x(2x-1)+2(2x-1)

(5x+2)(2x-1)

We are to arrange each term of the factors in the square box

Learn more on factoring here: brainly.com/question/24734894

#SPJ1

8 0

2 years ago