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3 years ago

Can someone help last one :((

Mathematics

1 answer:

vovangra [49]3 years ago

8 0

Answer:

40.49cm²

Step-by-step explanation:

I hope it helps

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What's (-5, 3) reflected along x-axis

Anna71 [15]

Whenever you reflect a point over the x axis, the x coordinate stays the same and the y coordinate is negated. In this case, the y coordinate which is 3 will be negated to become -3, and the x coordinate which is -5 will remain the same. Therefore, the new point is (-5,-3).

I hope this helps.

4 0

3 years ago

Read 2 more answers

What is t ? 3t - 2/3=1+t

MatroZZZ [7]

<span>3t - 2/3=1+t
we need to separate t. subtract t from both sides.
2t - 2/3 = 1
add 2/3 to both sides.
2t = 1+2/3
2t = 3/3 + 2/3
2t = 5/3
divide 2 by both sides.
t = 5/6</span>

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3 years ago

Find the area of this shape

docker41 [41]

Answer:

Step-by-step explanation:

7 x 3 + 6 x 7

21 + 42

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4 years ago

Please help. Sine and Cosine rules

kodGreya [7K]

Answer:

a=41.8 BC=2.8

Step-by-step explanation:

sin30/6=sinx/8

8*sin30=6sinx

4=6sinx

sin^-1(4/6)

angle a

cosine rule

bc^2=3^2 +5^2-2(3)(5)*cos30

BC^2= $\sqrt8.019237886\\$

BC=2.83

2.8

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3 years ago

Mathematics puzzle from my calculus text book.

xenn [34]

Answer:

${ \tt{g(x) = a {x}^{2} + bx + c = 0 }} \\ { \tt{f(x) = {a'x}^{2} + b 'x + c' = 0}} \\ { \boxed{ \bf{f(g(x)) = g(f(x))}}} : \\ { \tt{ =( \frac{a}{a'})x {}^{2} + ( \frac{b}{b'}) x} + \frac{c}{c'} } = 0$

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3 years ago