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3 years ago

Write an expression that can be used to multiply 6 times 198 mentally

Mathematics

1 answer:

puteri [66]3 years ago

5 0

6*100
6*90
6*8

add them all up and you get 1188..the answer

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A square postage stamp has area 1,130 mm². About how long is each side?

Anna007 [38]

Answer:

33.61 mm (the square root of 1130)

Step-by-step explanation:

3 0

2 years ago

HELP PLEASEEEE!!!!!!!!

nikdorinn [45]

Chin is correct because 5 x $.65 is $3.25., and he multiplied by US/GB

Nadene is incorrect because she took GB/US x 5

3 0

2 years ago

2) The two rectangles shown are similar.

Citrus2011 [14]

Answer:

$6\ cm$

Step-by-step explanation:

First Rectangle:

$length(l_1)=24\ cm\\\\Width(b_1)=9\ cm$

Second Rectangle:

$length(l_2)=16\ cm\\\\Let\ Width=b_2\ cm$

$Since\ these\ two\ rectangles\ are\ similar\\\\\frac{l_2}{l_1}=\frac{b_2}{b_1}\\\\\frac{16}{24}=\frac{b_2}{9}\\\\16\times 9=24\times b_2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ cross\ multiplication\\\\b_2=\frac{16\times 9}{24}\\\\b_2=6\ cm$

5 0

3 years ago

The mean temperature for the first 7 days in January was 3 °C.

weeeeeb [17]

$m = \frac{a_1 + a_2 + ... + a_n}{n}\\~\\m = \frac{3 * 7 + 2}{8} = \frac{21 + 2}{8} = \frac{23}{8} = 2,875$

Answer: 2,875.

6 0

3 years ago

Find the range of the inequality 2e-3< 3e-1

serg [7]

Answer:

$x = { - 1, 0,1 ,2 ...}$

Step-by-step explanation:

$2e - 3 < 3e - 1 = 2e - 3e < - 1 + 3 = - 1e < 2 = e > - 2$

Hope this helps ;) ❤❤❤

6 0

3 years ago