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3 years ago

I need help again its not the answer i thought it was

Mathematics

2 answers:

Volgvan3 years ago

5 0

Answer: you subtract the angles by the one you are trying to solve

Step-by-step explanation: learned about it in 6th grade

madreJ [45]3 years ago

4 0

Step-by-step explanation:

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Josh decided to rent an SUV for a family trip he was planning. On the way

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Answer: a collision damage waiver

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3 years ago

Convert: 27 mm = _______ m A. 270 B. 0.027 C. 2.7 D. 0.0027

SSSSS [86.1K]

Answer:

B. 0.027

Step-by-step explanation:

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4 years ago

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3 years ago

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Write the decimal as a fraction 0.4 = 4/?

STALIN [3.7K]

Answer:

4/10

Step-by-step explanation:

Hi,

0.4 is the same thing as 40/100, but when you simplify it, you get 4/10

I hope this helps :)

(If you have any questions similar to this in the future, simply place the number over 100)

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3 years ago

In the right ΔABC, AN is the altitude to the hypotenuse. Find BN, AN, and AC, if AB=2√5 in and NC= 1 in.

kipiarov [429]

Answer:

$BN=4\ \text{in}$

$AN=2\ \text{in}$

$AC=\sqrt{5}\ \text{in}$

Step-by-step explanation:

Let $BN=x$

$BC=c$

$NC=y=1\ \text{in}$

$AB=a=2\sqrt{5}\ \text{in}$

$AC=b$

We have the relation

$\dfrac{BC}{AB}=\dfrac{AB}{BN}\\\Rightarrow \dfrac{c}{a}=\dfrac{a}{x}\\\Rightarrow c=\dfrac{a^2}{x}\\\Rightarrow x+1=\dfrac{a^2}{x}\\\Rightarrow x^2+x=20\\\Rightarrow x^2+x-20=0\\\Rightarrow x=\frac{-1\pm \sqrt{1^2-4\times 1\times \left(-20\right)}}{2\times 1}\\\Rightarrow x=4,-5$

$\boldsymbol{BN=4\ \text{in}}$

$h=\sqrt{a^2-x^2}\\\Rightarrow h=\sqrt{(2\sqrt{5})^2-4^2}\\\Rightarrow h=2\ \text{in}$

$\boldsymbol{AN=2\ \text{in}}$

$b=\sqrt{h^2+y^2}\\\Rightarrow b=\sqrt{2^2+1^2}\\\Rightarrow b=\sqrt{5}\ \text{in}$

$\boldsymbol{AC=\sqrt{5}\ \text{in}}$

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3 years ago