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3 years ago

Find (5d2 +8d + 1) - (2d? + 3d - 1). (542 +8d + 1) - (2d2 + 3d-1) =

Mathematics

1 answer:

Kruka [31]3 years ago

3 0

Answer:

282

Step-by-step explanation:

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Triangle X Y Z is shown. Angle X Z Y is a right angle. Angle Z X Y is 60 degrees and angle X Y Z is 30 degrees. The length of hy

vladimir1956 [14]

Answer:

StartFraction StartRoot 3 EndRoot Over 3 EndFraction

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

we know that

In the right triangle XYZ

$cos(Y)=\frac{ZY}{XY}$ ---> adjacent side divided by the hypotenuse

substitute the values

$cos(30\°)=\frac{ZY}{4}$

Remember that

$cos(30\°)=\frac{\sqrt{3}}{2}$

substitute

$\frac{\sqrt{3}}{2}=\frac{ZY}{4}$

$ZY=(4)\frac{\sqrt{3}}{2}$

$ZY=2\sqrt{3}\ units$

step 2

$sin(Y)=\frac{XZ}{XY}$ --> opposite side divided by the hypotenuse

substitute the values

$sin(30\°)=\frac{XZ}{4}$

Remember that

$sin(30\°)=\frac{1}{2}$

$\frac{1}{2}=\frac{XZ}{4}$

$XZ=2\ units$

step 3

$tan(Y)=\frac{XZ}{ZY}$ --> opposite side divided by adjacent side

substitute the values

$tan(Y)=\frac{2}{2\sqrt{3}}$

$tan(Y)=\frac{1}{\sqrt{3}}$

Simplify

$tan(Y)=\frac{\sqrt{3}}{3}$

StartFraction StartRoot 3 EndRoot Over 3 EndFraction

7 0

2 years ago

Read 2 more answers

A: Which expression shows how many ways 7 people can be arranged on individual Ferris wheel seats?

Assoli18 [71]

A: 7! and
B: 5040

you only have 7 slots with 7 * 6 * 5 * 4 * 3 * 2 * 1

8 0

3 years ago

Given: ABC is a right triangle with right angle C. AC = 15 centimeters and mZA= 40°

kupik [55]

Answer:

hello luv

Step-by-step explanation:

i see ur struggling mate

6 0

3 years ago

Could you please help me on question 5

morpeh [17]

Question plz thxs
your welcome

7 0

2 years ago

PLEASE HELP ASAP

stellarik [79]

Answer and Step-by-step explanation:

The correct answer choice would be to grind the solvent into smaller pieces.

When the solid is in smaller pieces, it would take less time for the dissolver to dissolve the smaller bits, since the pieces are smaller and take up less volume for the dissolver to go through.

With a bigger solid, the dissolver would just chip away at the solid before eventually dissolving the solid, although this could take some time.

#teamtrees #PAW (Plant And Water)

5 0

2 years ago