2 years ago

Find Y.Please help Round to the nearest tenth.

Mathematics

2 answers:

labwork [276]2 years ago

5 0

Answer:

32.7

Step-by-step explanation:

Luba_88 [7]2 years ago

4 0

Answer:

Y = arccos[(50^2 + 90^2 - 55^2)/(2 x 90 x 50)] = ~32.7 deg

Hope this helps!

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PLEASE HELP

sweet [91]

Answer:

a) $2 + 3 + 5 + 6 = 16$

b) $8a + b-9$

c) $8a - 28b + 15c$

Step-by-step explanation:

We are given the following in the question:

1. Equivalent expression

$2 + 3 + 5 + 6$

Since all the terms are like terms, we can write,

$2 + 3 + 5 + 6 = 16$

2. Sum of given expression

$(8a - 2b - 4) \text{ and } (3b - 5)\\ (8a - 2b - 4) + (3b -5)\\= 8a -2b -4 + 3b -5\\\text{Collecting the like terms}\\8a + (-2b+3b) + (-4-5)\\= 8a + b-9$

3. Standard form of the expression

$4(2a) + 7(-4b) + (3 \times c \times 5)\\=(8a) + (-28b) + (15c)\\=8a - 28b + 15c$

which is the required standard form of the given expression.

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2 years ago

Evaluate the expression 23[1/4 +4(36÷12)]

Katyanochek1 [597]

Step-by-step explanation:

23 [1/4 +4(36÷12)]

23 [1/4 +4×3]

23 [0.25 +12]

23 ×12.25

281.75

<h2>follow me</h2>

4 0

2 years ago

1/2 divided by 3. Please answer quickly. My homework is due in a few mins xd

umka2103 [35]

Answer:

0.1666666666

I'd say 1.16

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3 years ago

Mark and his brother David are fighting over a toy airplane while playing their yard. Mark grabs the plane and takes off running

-BARSIC- [3]

David will have 2.57 seconds to get to mark and it’s 50 meters

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2 years ago

grants plans to a factory enough water from 22 gallons in a 16% ammonia solution to make a 24% solution which equation can be us

Andreyy89

16/22=24/x

x=33

then subtract

33-22=11

11 galons should be taken out

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2 years ago