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Vilka [71]
3 years ago
14

Which of the following expressions have a value of 180 when b = 4?

Mathematics
1 answer:
Tasya [4]3 years ago
5 0

Answer: The answer is A and D

Step-by-step explanation: If you go through all the problems, just replace "b" with "(4)" into a calculator. For A and D, they both equaled 180.

You might be interested in
Is 7,849 a reasonable number for 49x49
AleksAgata [21]
Well 49x49= 2,401 so not really
5 0
3 years ago
A man 6 feet tall casts a shadow that is 11 feet long. A building casts a shadow of 139 feet long. The building is tall. Round y
dmitriy555 [2]

Given:

Height of man = 6 ft

Height of man's shadow = 11 feet

Height of building's shadow = 139 feet

To find:

The height of the building.

Solution:

We know that the heights of the objects and there shadows are always proportional.

\dfrac{\text{Height of man}}{\text{Height of man's shadow}}=\dfrac{\text{Height of the building}}{\text{Height of building's shadow}}

Let x be the height of the building.

\dfrac{6}{11}=\dfrac{x}{139}

Multiply both sides by 139.

\dfrac{6}{11}\times 139=x

\dfrac{834}{11}=x

75.8181...=x

x\approx 75.8

Therefore, the building is 75.8 feet long.

8 0
3 years ago
I need to submit this soon help plz, sorry for asking a lot, I'm not that good at math
garik1379 [7]

Answer:

1.4000

2.5.551

3.6.8

4.10.00

5.4

Step-by-step explanation:

1 4066 as an example start from the end a 5 or more it turns to a zero and the one next to it

so in this case we now have 4100 but since it isn't 5 or more we make it a zero and move on so now we have 4000

sorry if I am wrong I am also an idiot so hopefully this helps for the future :)

5 0
3 years ago
Jamaican sprinter Usain Bolt 100 m sprint gold medal in the 2012 Summer Olympics Iran the hundred meter race and 9.63 seconds th
Serggg [28]

Answer: 23.2 miles per hour

Step-by-step explanation:

He ran 100 meters in 9.63 seconds.

First convert the number of meters he ran to miles:

= 100 * 3.28

= 328 feet

= 328/5,280

= 0.062121212 miles

Convert the seconds to hours:

= 9.63 / 60

= ‭0.1605‬ minutes

= ‭0.1605‬/60

= ‭0.002675‬ hours

Speed in miles per hour is:

=  0.062121212 / ‭0.002675

= 23.22

= 23.2 miles per hour

4 0
3 years ago
PLEASE HELP AND EXPLAINNNN
trapecia [35]
5000 × .06 = $300 balance $5,300
5300 × .06 = $318 balance $5,618
5618 × .06 = $337.08 balance $5,955.08
5955.08 ×.06 = $357.30 balance $6,312.38
4 0
3 years ago
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