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3 years ago

Sol answered 49 questions correctly on a 63 question test.

Mathematics

1 answer:

AleksandrR [38]3 years ago

5 0

Answer:

0.7

Step-by-step explanation:

49 out of 63 so it is 49/63 which is 0.7777 inf

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Area and perimeter of geometric functions

SCORPION-xisa [38]

Answer:

C. 60

Step-by-step explanation:

From triangle ADB,

$|AD|^2+|BD|^2=|AB|^2$

$|AD|^2+16^2=20^2$

$|AD|^2=20^2-16^2$

$|AD|^2=400-256$

$|AD|^2=144$

$|AD|=\sqrt{144}$

$|AD|=12$

From triangle ADC,

$|CD|^2+12^2=15^2$

$|CD|^2+144=225$

$|CD|^2=225-144$

$|CD|^2=81$

$|CD|=9$

The perimeter is the distance around the figure.

The perimeter

$=15+20+16+9$

$=60$

8 0

4 years ago

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HELP PLZ i'll mark brainliest

kondor19780726 [428]

The sam choice im sure

8 0

3 years ago

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2 workers are working together. They finish their work in 12 hours. if the ratio of their work together is 3:2 how long did each

Serhud [2]

Answer:

7.2 and 4.8hrs

Step-by-step explanation:

Given the ratio it took them to finish work as 3:2

Total ratio = 3+2 = 5

For the larger ratio;

3/5 *12

= 36/5

= 7.2hrs

For the shorter ratio;

2/5 * 12

= 24/5

= 4.8hrs

Hence the first worker worked for 7.2hrs while the second was 4.8hrs

3 0

3 years ago

Okay so- I'm really stuck (help is well appreciated)

Artemon [7]

The dot is not filled and it is between the 5 and 6

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3 years ago

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Lana71 [14]

Answer:

for 1-12 I will say t (true) and f (false) to determine if it's proportional or not.

1) t. 7)t

2)t. 8)f

3)f. 9)t

4)t. 10)t

5)f. 11)t

6)f. 12)f

13) proportional

14) unproportional

6 0

3 years ago