I need help solving this practice math problem ​

Answer and Step-by-step explanation:

Trigonometric Function (These only work for right triangles):

SOH-CAH-TOA

S = Sine = sin

C = Cosine = cos

T = Tangent = tan

O = Opposite (side)

H = Hypotenuse (side)

A = Adjacent (side)

SOH = sin(angle) = [tex]\frac{opposite}{hypotenuse}[/tex]

CAH = cos(angle) = [tex]\frac{adjacent}{hypotenuse}[/tex]

TOA = tan(angle) = [tex]\frac{opposite}{adjacent}[/tex]

1. sinQ (Q is the angle) = [tex]\frac{14}{50} = \frac{7}{25} = 0.28[/tex]

Use Pythagorean Theorem to find side PQ.  [tex]14^{2} + PQ^{2}= 50^{2} \\PQ^{2} = 2304\\PQ = 48[/tex]

2. cosQ = [tex]\frac{48}{50} = \frac{24}{25} = 0.96[/tex]

3. tanQ = [tex]\frac{14}{48} = \frac{7}{24} = 0.29[/tex]

Answer: 21n^4 -46n^3 -4n^2 +7n

Step-by-step explanation:

21n^4 +3n^3 +3n^2 -49n^3 -7n^2 +7n =

21n^4 -46n^3 -4n^2 +7n

Answer:

87

Step-by-step explanation:

Answer:

tetrahedral

Step-by-step explanation:

According to the valence shell electron pair repulsion theory (VSEPR) the shape of a molecule is dependent on the number of electron pairs on the valence shell of the central atom in the molecule.

The predicted electron pair geometry may sometimes differ from the molecular geometry due to the presence of lone pairs and multiple bonds.

If we consider each nitrogen atom in N2 independently, we will notice that each nitrogen atom has four regions of electron density. Hence the electron pair geometry is tetrahedral.

Answer: -2.25,1.6 or 1 3/5 ,3.25 or13/4

Step-by-step explanation: because it’s in the negative,it’s smaller than the last on ,

Answer:

none

Step-by-step explanation:

Answer:

Step-by-step explanation:

this is a graph of y=2

the domain is {-∞< x<∞}, x can be any real Number

Answer:

A=50.27

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

We know the total amount of marbles in the bag, 6. Now, we need to make a fraction, there are 3 blue marbles, so our fraction is 3/6. This can be simplified to 1/2.

The required probability of the blue marble in the bag is 1 / 3.

Given that,
A bag with 6 marbles has 2 blue marbles, 1 red marble, and 3 yellow marbles. A marble is chosen from the bag at random, what is the probability that it is blue is to be determined.

Probability can be defined as the ratio of favorable outcomes to the total number of events.

here,
Total number of marble in the bag = 6
Total number of blue marble in the bag = 2
Probability of the blue marble in the bag = 2 / 6 = 1 / 3

Thus, the required probability of the blue marble in the bag is 1 / 3.

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Answer:

so we can't because you did put the full question

Answer:

n = - [tex]\frac{4}{3}[/tex]

Step-by-step explanation:

Given

- 5(n - 1) = 7(n + 3) ← distribute parenthesis on both sides

- 5n + 5 = 7n + 21 ( subtract 7n from both sides )

- 12n + 5 = 21 ( subtract 5 from both sides )

- 12n = 16 ( divide both sides by - 12 )

n = [tex]\frac{16}{-12}[/tex] = - [tex]\frac{4}{3}[/tex]

Answer:

Step-by-step explanation:

To solve this you have to use the distributive property.

So first you would distribute the -5 to n and -1.

So the new equation will be -5n + 1 = 7 (n + 3)

Next, distribute the 7 to n and 3.

The new equation will be -5n + 1 = 7n + 21

Next you simplify by adding 5n to both sides which will give you 1 = 12n + 21

Then you subtract 21 from both sides and get -20 = 12n

So then you divide both sides by 12 to get n by itself and you are left with  -5/3 = n

Answer:

question 9

= –12

while question 11=, x= –72

Step-by-step explanation:

question 9=

u= –16+4= –12

question 11=

cross multiplication

x = -36 multiplied by 2 =

-72

I HOPE THIS HELPED IF WRONG IM SORRY

Answer:

4 times 15 = 60 answer 4

Step-by-step explanation:

4 times

15+15+15+15=60

Answer:

Step-by-step explanation:

the last choice looks good

Answer: Its the bottom one i believe

Step-by-step explanation:

Domain slope stuff you don't want to hear have a good night :)

Answer:

3

Step-by-step explanation:

Step-by-step explanation:

mmm whats the question though

they are all inequality symbols

Answer:

I believe that the answer is 213

Step-by-step explanation:

Answer:

u have the answer yet?

Step-by-step explanation:

?

Answer:

-3,970.9(0.47)= -1,866 years

i'll edit my answer afterwards, but what are the options for the second question?

Step-by-step explanation:

Answer:

17 is the corect answer

hope this helped

Step-by-step explanation:

Answer:

120 grams of 20% sugar and 480 grams of 10% sugar

Step-by-step explanation:

The reason that the answer is what it is is because the total of the sugar syrup must be 600 grams. It is 12% which means that its 1/5 20% and 4/5 10% and if you divide 600 by 5 you get 120 therefore 120 grams of 20% sugar is correct and for the rest just subtract 120 from 600 the get the answer.

There are 120 g of 20% sugar syrup and 480 grams of 10% of sugar syrup.

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

A 20% sugar syrup is mixed with 10% sugar syrup.

And, The result is 600 g of 12% sugar syrup.

Now,

It is 12% which means that its 1/5 of 20%.

Hence, Amount of sugar grams = 600 / 5

                                                  = 120 grams

And,  It is 12% which means that its 4/5 of 10%.

Hence, Amount of sugar grams = 600 / (4/5)

                                                  = 480 grams

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Answer:

Percent increase = 60%

Percent increase with baggage = 83%

Step-by-step explanation:

Given that:

Old price of the ticket = $210

New price of the ticket = $335

Increase amount =335-210 = $125

Percent increase = [tex]\frac{Inrease\ amount}{Old\ price}*100[/tex]

Percent increase = [tex]\frac{125}{210}*100 = 0.595*100[/tex]

Percent increase = 59.52% = 60%

Additional charges = $125+$50 = $175

Percent increase = [tex]\frac{175}{210}*100[/tex]

Percent increase = 83%

Hence,

Percent increase = 60%

Percent increase with baggage = 83%

Answer:

person on top is the goat

Step-by-step explanation:

Answer:

y=-1x+9

Step-by-step explanation:

plug point in to y-y1=m(x-x1)

y-3=-1(x-6)

y-3=-1x+6

y=-1x+9

Answer:

5

Step-by-step explanation:

because equation by itself

Answer: Total work stations = 20

Step-by-step explanation:

Total clay = [tex]\dfrac58[/tex] pound

Clay at each work station =  [tex]\dfrac1{32}[/tex] pound

Total work stations = (Total clay ) ÷ (Clay at each work station )

[tex]=\dfrac58\div\dfrac{1}{32}\\\\=\dfrac58\times32\\\\= 5\times4\\\\= 20[/tex]

Hence, Total work stations = 20

Answer:

The correct answer is A.) 45 + 70x < 250.

y = mx + b

She started at 45 miles (+ 45).

She has to go at least 250 miles (< 250).

She is driving at a constant, unchanging speed of 70 mph (70x).

Answer:

The answer is 20/3/4(without spaces) or 20 3/4.

Step-by-step explanation:

Answer  :83/4

Step-by-step explanation:

Answer:

Yes they are similar using the SSS postulate

Step-by-step explanation:

All sides are in the same ratio!

Another tip is that one triangle is a dilated shape of the other