The measure of angle is 0 is 7pi/4. The measure of its reference angle is ___ °, and tan 0 is ___

?<br>12.Write an equation and solve it to find the measure of Angle TPQ.

tatuchka [14]

9 times 9 = 81 6 times 6 =36 so 36 plus 18

8 0

2 years ago

Help me plsss ill give ten pointsssss

Bond [772]

Answer:

A

Step-by-step explanation:

AE=EC

5x-10=2x+5

5x-2x=5+10

3x=15

x=5

6 0

2 years ago

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A chemist has a 40% alcohol solution and a 25% alcohol solution. How much of each should he mix together to get 50 liters of a 3

ludmilkaskok [199]

Answer:

33 1/3 L of the 40% solution, 16 2/3 L of the 25% solution

Step-by-step explanation:

Set up two equations...

Let x represent the number of Liters of the 40% solution

Let y represent the number of Liters of the 25% solution

We need 50 liters total, so

x + y = 50

and we need the 50 L to be 35% solution, so

0.4x = 0.25y = 0.35(50)

Solve the first equation for one variable...

x = 50 - y (subtract y from both sides in equation 1)

Now substitute that value into the second equation...

0.4(50 - y) + 0.25y = 17.5 (x becomes 50 - y, 0.35(50) = 17.5)

Now solve for y...

20 - 0.4y + 0.25y = 17.5

-0.15y = -2.5

y = 16.66666667

y = 16 2/3 L

So we need to plug that into the first equation to find 'x'

x + 16 2/3 = 50

x = 50 - 16 2/3

x = 33 1/3

3 0

2 years ago

Read 2 more answers

Can anyone help me out in my homework. I would love to talk about these problems

katen-ka-za [31]

Step-by-step explanation:

(b) If $F_G = m_1g,$ then

$m_1g = G\dfrac{m_1m_2}{r^2}$

Note that $m_1$ cancel out so we get

$g = G\dfrac{m_2}{r^2}$

Solving for $m_2,$ we get

$m_2 = \dfrac{gr^2}{G}$

(c) I'm not sure what the problem is asking for but here goes. As r doubles, $F_G$ becomes

$F_G = G\dfrac{m_1m_2}{(2r)^2} = \dfrac{1}{4}\left(G\dfrac{m_1m_2}{r^2}\right)$

5 0

2 years ago

HELP!!!!!!!<br><br><br> What is 2 8/10 + (-3.5) in decimal form

GarryVolchara [31]

Answer: -0.7

Step-by-step explanation:

7 0

2 years ago

The measure of angle is 0 is 7pi/4. The measure of its reference angle is ___ °, and tan 0 is ____

The measure of angle is 0 is 7pi/4. The measure of its reference angle is _ °, and tan 0 is __