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goblinko [34]
3 years ago
12

Help me with this homework plz.

Mathematics
2 answers:
sleet_krkn [62]3 years ago
8 0
The 9 is 624 square millimeters
andrezito [222]3 years ago
7 0
A=pi times r•r
A=pi (9•9)
A=254.47
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it took Dean's family 3 hours to drive 195 miles on Friday. Then they drove at the same speed for 5 on saturday. how far did Dea
inn [45]

Hey!

Dean's family has been traveling on the same speed for two days, so to find how far you will need to travel you will need to find how far they are traveling in one hour..

To find this you will need to set up a proportion...

3/195 = 1/x

Solve this proportion by cross multiplying and then dividing..

195 * 1 = 195/3 = 65

This tells you that they are traveling 65 miles per hour. Now with this you will simply have to multiply 65 by 5 to tell you how far they would be traveling in 5 hours with the given speed...

65 * 5 = 325

Your answer of 325 miles tells you how far they traveled.


Hope it Helped!

~A

6 0
3 years ago
7) If £1 = €1.14.<br> Work out what €144 is in pounds.
jonny [76]

Answer:

126\frac{6}{19} £

Step-by-step explanation:

£1 = €1.14  /*\frac{144}{1.14}

£\frac{144}{1.14}=144€= 126\frac{6}{19} \\£

8 0
3 years ago
Can someone help me on this math problem ?
faltersainse [42]

Answer:

4/3

Step-by-step explanation:

Given two points, we can find the slope by using

m = (y2-y1)/(x2-x1)

    = (20 - -16)/(7 - -20)

    = (20+16)/(7+20)

    = 36/27

   =4/3

8 0
3 years ago
Verify the identity. sin() tan() = cos() use a reciprocal identity to rewrite the expression in terms of sine and cosine, and th
Andreas93 [3]

The identity Sin(α)/Tan(α) = Cos(α) is valid

Trigonometry is study of triangles. All trigonometric ratios are defined using the sides of the right triangle, such as an adjacent side, opposite side, and hypotenuse side. Three major of them are as follows :-

Sine Function:

sin(θ) = Opposite / Hypotenuse

Cosine Function:

cos(θ) = Adjacent / Hypotenuse

Tangent Function:

tan(θ) = Opposite / Adjacent

Lets prove this identity by proceeding with the LHS

= Sin(α)/Tan(α)

= Sin(α)/ (Sin(α)/Cos(α)) (Tan(α) = Sin(α)/Cos(α))

= Sin(α)xCos(α) / Sin(α)

= Cos(α)

Hence verified

Learn more about Trigonometric Ratios here :

brainly.com/question/13776214

#SPJ4

4 0
2 years ago
What is .181818... as a fraction?
LekaFEV [45]
181818/1000000. let me know if im wrong! <3
4 0
3 years ago
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