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vredina [299]
3 years ago
9

I can't figure this one out

Mathematics
2 answers:
dolphi86 [110]3 years ago
7 0

Answer:

21

Step-by-step explanation:

Law of cosines

\tt c=\sqrt{AC^2+BC^2-2\cdot AC \cdot BC\cdot\cos C}\\\\{} \ \ =\sqrt{10^2+17^2-2\cdot10\cdot17\cdot(-0.152985)}\\\\{} \ \ \approx\sqrt{100 +289+52} \approx\sqrt{441} \approx21 \ units

aleksley [76]3 years ago
4 0

Answer:

c = 21

Step-by-step explanation:

You are given the lengths of two sides and the measure of the included angle. You must use the Law of Cosines.

c^2 = a^2 + b^2 - 2ab\cos C

c^2 = 17^2 + 10^2 - 2(17)(10)\cos 98.8^\circ

c = 21.0004

c = 21

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Mr. Yu applies 1/2 ounce of fertilizer to every 5/8 square meter of his lawn. How many ounces of fertilizer does Mr. Yu use per
Andrews [41]
Divide both by 5/8 because 5/8 divide by 5/8 =1
(1/2)/(5/8)
1/2*8/5
8/10
4/5
4 0
4 years ago
Read 2 more answers
What is x+y=10;y=x+10
Alenkasestr [34]

[ Answer ]

\boxed{\bold{X \ = \ 0, \ Y \ = \ 10}}

[ Explanation ]

  • System Of Equations \bold{\left \{ {X \ + \ Y \ = \ 10} \atop {Y \ + \ X \ = \ 10}} \right.}

-----------------------------------

  • [Substitute] Y = X + 10

\bold{\begin{bmatrix}x+x+10=10\end{bmatrix}}

  • Isolate x for x + x + 10 = 10: x = 0

For y = 10

Substitute x = 0

Y = 0 + 10

0 + 10 = 10

y = 10

  • Solutions

X = 0

Y = 10

\boxed{\bold{[] \ Eclipsed \ []}}

3 0
3 years ago
1704000000 in scientific notation
zaharov [31]

Answer: 1.704 x 10^9

Step-by-step explanation: Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10

. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

3 0
3 years ago
What formula did you use to solve this ?
makkiz [27]

Answer:

What do you mean by this I don't get the question you are asking?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help me if you can :)
IgorC [24]
All right, so let's start with a basic equation. A percent increase on a number <em>n </em>can be represented by n(1+x) where x is the percent increase. So if there's a percent increase of 50% on 4 objects, then it'll be 4(1+0.5) = 4(1.5) = 6.
a) Set up: 1650 = 1500x
    x = 1.1. The percent of increase is 1.1 - 1 = 0.1 = 10%.
b) 1500(1.99) = 2985
These are the answers I got, but it is always helpful to double check work. Hope this helps!
5 0
3 years ago
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