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2 years ago

Solve for an angle in right triangles. Round to the nearest hundredth

Mathematics

1 answer:

Leona [35]2 years ago

4 0

Answer:

6.53

Step-by-step explanation:

cos(theta)= adjacent/hypotenuse

cos(40)= 5/h

H= 5/cos(40)

=6.527

Rounded to the nearest hundredth will be 6.53

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Simplify 9i(2+3i)

viktelen [127]

Simplify 9i(2+3i):
9i×2=18i
9i×3i=27i

18i+27i

3 0

3 years ago

Read 2 more answers

15. A cylindrical glass 10 cm tall and 8 cm in diameter is filled to 1 cm

ANTONII [103]

Answer:

No. The new height of the water is less than the height of the glass(6.33 cm<10 cm)

Step-by-step explanation:

-For the water in the glass to overflow, the volume of the inserted solid must be greater than the volume of the empty space or the ensuing height of water >height of glass.

#Volume of the golf ball:

$V=\frac{4}{3}\pi r^3\\\\=\frac{4}{3}\pi \times 4^3\\\\\approx 268.08\ cm^3$

#The volume of the water in the glass:

$V=\pi r^2 h\\\\=\pi \times 4^2\times 10\\\\\approx 50.27\ cm^2$

We then equate the two volumes to the glass' volume to determine the new height of the water:

$V=\pi r^2h\\\\(206.08+50.27)=\pi r^2 h\\\\h=318.35/(\pi \times 4^2)\\\\=6.33\ cm$

Hence, the glass will not overflow since the new height of the water is less than the height of the glass(6.33 cm<10cm).

4 0

3 years ago

What is the value of A when we rewrite<br> (5/2)^x +(5/2)^x+3 as A x (5/2)^x

elixir [45]

Answer:

Step-by-step explanation:

$(\frac{5}{2})^{x}+(\frac{5}{2})^{(x+3)}=(\frac{5}{2})^{x}+(\frac{5}{2})^{x}*(\frac{5}{2})^{3}\\\\=(\frac{5}{2})^{x}*[1+(\frac{5}{2})^{3}]$

Therefore,

$A=1+(\frac{5}{2})^{3}$

3 0

3 years ago

What two numbers add up to 12 but multiply to 20

marta [7]

Answer:

I think it’s 10plus2 then u multiply

Step-by-step explanation:

7 0

3 years ago

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Please help I need to turn this is 30 min.

Soloha48 [4]

Answer:

46 ft2

Step-by-step explanation:

esorry if it doesnt lph

8 0

3 years ago