3 years ago

4c + 2b3 when b = 5 and c= 1.2

Mathematics

1 answer:

ELEN [110]3 years ago

8 0

Answer:

257.8

Hope this Helps!

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A right-angled triangle has shorter side lengths exactly c^2-b^2 and 2bc units respectively, where b and c are positive real num

yKpoI14uk [10]

Answer: hypotenuse = $c^{2} + b^{2}$

Step-by-step explanation: Pythagorean theorem states that square of hypotenuse (h) equals the sum of squares of each side ( $s_{1},s_{2}$ ) of the right triangle, .i.e.:

$h^{2} = s_{1}^{2} + s_{2}^{2}$

In this question:

$s_{1}$ = $c^{2}-b^{2}$

$s_{2} =$ 2bc

Substituing and taking square root to find hypotenuse:

$h=\sqrt{(c^{2}-b^{2})^{2}+(2bc)^{2}}$

Calculating:

$h=\sqrt{c^{4}+b^{4}-2b^{2}c^{2}+(4b^{2}c^{2})}$

$h=\sqrt{c^{4}+b^{4}+2b^{2}c^{2}}$

$c^{4}+b^{4}+2b^{2}c^{2}$ = $(c^{2}+b^{2})^{2}$ , then:

$h=\sqrt{(c^{2}+b^{2})^{2}}$

$h=(c^{2}+b^{2})$

Hypotenuse for the right-angled triangle is $h=(c^{2}+b^{2})$ units

3 0

4 years ago

You are at a restaurant and your bill comes to $28.52. You need to add the sales tax which is 6%. You have one $20 bill, two $10

kifflom [539]

Answer:

30.2312

u should give the server $33

one $20 bill, one $10 bill, three $1 bills

Step-by-step explanation:

28.52*106/100=30.2312

u should give the server $33

one $20 bill, one $10 bill, three $1 bills

20+10+1+1+1=3

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3 years ago

How would using a number line to find the sum -2+ -5?

Gelneren [198K]

Answer:

In finding the sum of 2+5 you would go right on the number line, while in finding the sum of -2+(-5) you would go left on the number line

Step-by-step explanation:

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3 years ago

7 feet 8 feet 10 feet 9 feet rosa is painting a wall'

allsm [11]

Answer:

this doesn't make sense, but it depends how big the wall is I guess

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3 years ago

What is the equation of this line? <br> A) y=2x-2<br> B) y= -1/2x-2<br> C) y= 1/2x-2<br> D) y= -2x-2

8_murik_8 [283]

Answer:

Step-by-step explanation:

gradient = change in y/change in x= 1/2

y intercept is -2

so y=1/2x-2

6 0

3 years ago

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