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Dmitrij [34]
3 years ago
8

Someone plz answer this o need it done

Mathematics
1 answer:
viva [34]3 years ago
4 0
I believe the answer is B

please give brainliest if helped :)
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Find the Area of the Shaded Region.
Ksju [112]

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A of the shaded figure is 4840cm

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3 years ago
Find the roots of the equation <br> x^2 +7= 2x<br> express your answer in simplest a +bi form
Fittoniya [83]

x^2+7=2x\\\\\implies x^2 -2x +7 =0\\\\\text{Apply quadratic formula,}~ x =\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\text{in this case,}~ a = 1, b= -2 ~\text{and}~ c = 7\\\\\\x= \dfrac{-(-2) \pm \sqrt{(-2)^2 -4\cdot 1 \cdot 7}}{2\cdot 1}\\\\\\\implies x =\dfrac{2 \pm \sqrt{-24}}{2}\\\\\\\implies x = \dfrac{2 \pm i\sqrt{24}}2\\\\\implies x =\dfrac{2 \pm i2\sqrt{6}}2\\\\\implies x = \dfrac{2\left(1 \pm i  \sqrt 6\right)}2\\\\\implies x = 1 \pm i\sqrt 6\\\\

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7 0
3 years ago
I need help please!!
Jobisdone [24]
A
B
C
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F
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(It’s basically just a game of making pairs)
4 0
3 years ago
I'm not sure if I'm right. Which value is equivalent to cos15∘?
Jlenok [28]

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3 0
3 years ago
A ladder 6.5 m long rests against a vertical wall. If the foot of the ladder is 2.5m from the foot of the wall find upto how muc
Burka [1]

Answer:

The ladder reaches a height of 6 m.

Step-by-step explanation:

Given that,

Height of the ladder, H = 6.5 m

The foot of the ladder is 2.5 m from the foot of the wall.

We need to find the height does the ladder reach. If we consider a triangle in which hypotenuse is 6.5 m, foot of the ladder is 2.5 m then we need to find the height of the ladder i.e.

H^2=b^2+h^2\\\\h^2=H^2-b^2\\\\h^2=(6.5)^2-(2.5)^2\\\\h=6\ m

The ladder reaches a height of 6 m.

7 0
3 years ago
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