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UNO [17]
3 years ago
8

Can someone pls help and ty

Mathematics
2 answers:
IgorC [24]3 years ago
7 0

Answer:

16.3

Step-by-step explanation:

I'm assuming side a is the hypotenuse.

Cosine rule is a=\sqrt{a^{2} +b^{2}-2ab*cosC }

so \sqrt{10^{2}+8^{2} -2*10*8*cos130} = 16.33542217

The attached picture is a diagram if you are confused

The labelling of the sides doesn't matter as long as the unknown side is c

SOVA2 [1]3 years ago
4 0

Answer:

well its obtuse and obtuse triangles are more than a right angle or should i say not 90* degrees

Step-by-step explanation:

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Formula in the form y=mx+b models the value, y, of a new car x years after the initial purchase in 2010. Would you expect b to b
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Answer:

positive

Step-by-step explanation:

The equation of a line modeling the price of a car over the years from its initial purchase is to be a line with negative slope "m" due to the fact that the price of the car drops with the years, but for sure the price at the time of purchase (which is the zero in the horizontal x-axis) should be the largest value the car would have (the purchase price) This is actually the y-intercept "b", clearly a positive number.

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3 years ago
The area of a triangle is 1,440 cm2. The base of the triangle is 5 times the height. What is the height of the triangle?
madam [21]

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Step-by-step explanation:

The formula for calculate the area of a triangle is:

A=bh/2

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b=5h

Substitute the above into the formula and solve for the height. Therefore, you obtain that the height is:

1,440=\frac{5h*h}{2}\\1,440=\frac{5h^{2}}{2}

1,440cm^{2}=5h^{2}/2\\h=\sqrt{\frac{2(1,440)}{5}}\\h=24cm

3 0
3 years ago
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Svet_ta [14]

Answer:

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Step-by-step explanation:

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6x+3x +42

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Step-by-step explanation:

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