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4 years ago

13

Please help me by marking the correct answer to each part of number 9. I really dont get this at all, so please tell me why your

answer is correct (step by step) PLSS TELL ME HOW AND WHY THIS IS YOUR ANSWER!!!

1 answer:

Margaret [11]4 years ago

7 0

9a) False, The dimensions are 10 x 20

b) True, 10 x 20 = 200

c) 10-6=4 (right side minus left side)
26-20=6 (bottom line minus top line)

d) True, Area of a triangle = (base x height) / 2

The base is 6 and the height is 4, so 6 x 4= 24 / 2 =12

e) True, the total area is equal to the triangle area plus the rectangles area.

so, 200+12= 212

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Mashcka [7]

$\dfrac{2}{3}=\dfrac{2\cdot2}{3\cdot2}=\dfrac{4}{6}\\\\\dfrac{2}{3}=\dfrac{2\cdot3}{3\cdot3}=\dfrac{6}{9}\\\\\dfrac{2}{3}=\dfrac{2\cdot4}{3\cdot4}=\dfrac{8}{12}\\\\\dfrac{2}{3}=\dfrac{2\cdot5}{3\cdot5}=\dfrac{10}{15}\\\vdots\\\\\dfrac{2}{3}=\dfrac{2\cdot10}{3\cdot10}=\dfrac{20}{30}\\\vdots\\\\\dfrac{2}{3}=\dfrac{2\cdot100}{3\cdot100}=\dfrac{200}{300}\\\vdots$

8 0

3 years ago

a number has the same digit in it's hundreds place and it's hundredths place. How many times greater is the value of the digit i

kondor19780726 [428]

Answer:

3 times

Step-by-step explanation:

8 0

3 years ago

2/3x= 7/84 what is the solution

Amanda [17]

2/3x=7/84 16=1 9=4 The solución is by dividing

3 0

4 years ago

Read 2 more answers

Pls help<br> Enter the equation for the graph.

prisoha [69]

Answer:

$y=[1]cos([\frac{2\pi }{3}]x)$

Step-by-step explanation:

Looking at the graph, we can see the domain to be from (0 , 2π).

Now we have to find one period that corresponds to cos(x).

The half-period of cos(x) for this graph appears to be pi/3 and adding another pi/3 gets us 2pi/3 to be our cosine period.

b = 2pi/3

a is the same range as cos(x). Range: (0,0)

y = [a] * cos ([b]*x)

y = [1] * cos([2pi/3]x)

4 0

2 years ago

Can someone please answer. There is one problem. There's a picture. Thank you!

yawa3891 [41]

Degrees: $s = \frac{\pi}{180}\theta r$
   $s = \frac{\pi}{180}(\frac{s}{r})(r)$
  <span> $s = \frac{\pi}{180}(\frac{165}{4})(4)$
  </span> $s = \frac{\pi}{180}(41.25)(4)$
   $s = \frac{\pi}{180}(165)$
   $s = \frac{165\pi}{180}$
   $s = \frac{11\pi}{12}$
   $s = \frac{11\pi}{12} * \frac{180}{\pi}$
   $s = 11 * 15$
   $s = 165\°$

Radians: $s = \theta r$
$s = \frac{s}{r}(r)$
$s = \frac{165}{4}(4)$
$s =41.25(4)$
$s =165$
$s =165 * \frac{\pi}{180}$
$s =11 * \frac{\pi}{12}$
$s = \frac{11\pi}{12}$

$Arc\ Length = \frac{central\ angle}{360} * circumference$
$Arc\ Length = \frac{\theta}{360} * 2\pi r$
$Arc\ Length = \frac{165}{360} * 2(3.14)(4)$
$Arc\ Length = \frac{11}{24} * 2(12.56)$
$Arc\ Length = \frac{11}{24} * 25.12$
$Arc\ Length = \frac{276.32}{24}$
$Arc\ Length \approx 11.51\bar{3}$

The answer is A.

8 0

3 years ago

Read 2 more answers