2 years ago

What is -1/2 times 1/4-3/8?

Mathematics

1 answer:

pav-90 [236]2 years ago

6 0

Answer:

The answer is <em>-0.5</em>

Step-by-step explanation:

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The length of the hypotenuse of 30 -60 -90 triangle is 4 find the longer leg

11Alexandr11 [23.1K]

The longer leg is the leg adjacent to the larger angle

so 60

length of longer leg = 4 sin60 = 2sqrt(3)

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2 years ago

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A biologist wants to know the width w of a river in order to properly set instruments for studying the pollutants in the water.

belka [17]

Answer: The river is 148.3 feet wide.

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The triangle formed is a right triangle.

Using SOH CAH TOA

$tan 56 = \frac{x}{100}$

Multiplying 100 in both sides

$x = 100 \times tan56$

$x = 100 \times 1.4826$

$x = 148.26$

Rounding to the one decimal place

$x = 148.3$

Hence river is 148.3 feet wide. .............. Answer

Hope it will help :)

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2 years ago

4/5 dived by 3/4<br><br> Please help

Leto [7]

Answer:

1 1\15

Step-by-step explanation:

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2 years ago

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Please help me out am confused

Kipish [7]

Answer:

Step-by-step explanation:

separate into squares

i separated it into three squares (rectangles);

9x5

3x2

find the area of the three then add, 45+6+6

Total Area = 57m^2

7 0

2 years ago

Q ÷ 2 -qp ÷ 6; let p = -6 and q = 10

ozzi

Answer:

Step-by-step explanation:

1. Plug in the values.

q=10

p=-6

10÷2-(10)(-6)÷6

2. Use PEMDAS.

10÷2+60÷6

5+10

5 0

2 years ago