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kolbaska11 [484]
2 years ago
5

Calculate the area and perimeter

Mathematics
1 answer:
siniylev [52]2 years ago
4 0

Answer:

Area: 38 cm^2 Perimeter: 28 cm

Step-by-step explanation:

blegh

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find the value of tan (a-b) if cos a=4/5 on the interval (270, 360) and sin b=-5/13 on the interval (270, 360)
Rudiy27

We can find a and b using inverse trig functions,

\cos(a)=\frac{4}{5}\implies a=\arccos\Big(\frac{4}{5}\Big)\approx36.87 \\\sin(b)=-\frac{5}{13}\implies b=\arcsin\Big(-\frac{5}{13}\Big)\approx-22.62

\tan(36.87-(-22.62))\approx1.7

Hope this helps.

7 0
3 years ago
−2(x+1/4)+1=5 ​<br> whats the value of x
harkovskaia [24]

The value of x is: Solve for x by simplifying both sides of the equation, then isolating the variable.

x=−9/4


4 0
3 years ago
I need<br> Help on this one
elixir [45]
The answer is
X=7
Have a nice day <3
5 0
2 years ago
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Please help me im horrable at math
Masja [62]

1.) First plug in the values for m and A:

2555 = 139(4) + b

--> 2555 = 556 + b

Isolate b: 2555 - 556 = 556 - 556 + b

b = 1999

So your answer is the first option.

2.) Admission costs $5.25, so even if you don't go on any rides, you will still have to pay $5.25. This means that for this problem, 5.25 will be the b value. If each ride costs $2.50, then this means it is $2.50x for the cost of x rides. The total cost will then be C = 5.25 + 2.50x.

7 0
3 years ago
Please help me. I have been struggling with prob and stats.
Paraphin [41]

Answer:

Step-by-step explanation:10

3 0
3 years ago
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