Triangle P R Q is shown. The length of P R is 4, the length of R Q is 6, and the length of P Q is 5. Law of cosines: a2 = b2 + c2 – 2bccos(A) Find the measure of AngleQ, the smallest angle in a triangle whose sides have lengths 4, 5, and 6. Round the measure to the nearest whole degree. 34° 41° 51° 56°

Answers

Answer 1

Answer:

41°

Step-by-step explanation:

Using cosine rule : since the 3 sides are given

p = 6 ; q = 4 ; r = 5

q² = p² + r² - 2prCosQ

2prCosQ = p² + r² - q²

COS Q = (p² + r² - q²) / 2pr

Cos Q = (6² + 5² - 4²) / 2*6*5

Cos Q = 45 / 60

Cos Q = 0.75

Q = Cos^-1 (0.75)

Q = 41.409622

Q = 41° ( nearest degree)

Answer 2

Answer:

Step-by-step explanation:

b 41 degrees


Related Questions

Susan has 20 pieces of candy in a bag: 6 mint sticks, 11 jelly treats, and 3 fruit tart chews. If she eats one piece every 5 minutes, what is the probability her first two pieces will both be jelly treats?

Answers

Answer:

55%

Step-by-step explanation:

1.  You add all the candy together to show that all the candies added together equals 20.

11+6+3=20

2. You divide 11 by 20 to get the decimal

11/20=.55

3.  To get the percentage you just have to multiply .55 by 100.

4.  The final answer should be 55 %

what is better ,
8 pieces of candy for $0.99.

or

12 pieces of candy for $1.49.

Answers

Answer:

12 pieces of candy for $1.49

If one angle of a triangle is 90°, then the other two add to 90°.
Write the To Prove statement

Answers

So a triangle is always 180°.
If one angle is 90° then we can subtract that from the 180° to find out how much the other two will be.
180°-90°=90°
So the other two angles added together will have to equal 90°.

3. Lars drove 350 miles using 20 gallons of fuel. What was his fuel mileage?
A. 15 miles per gallon
B. 16 miles per gallon
C. 17 miles per gallon
D. 17.5 miles per gallon
pls answer

Answers

Answer : D
To find the fuel mileage divide the miles driven by the gallons of fuel.

350m/20g = 17.5 miles per gallon

Given that f(x) = x2 + 12x + 32 and g(x) = x+ 4, find (f - g)(x) and
express the result in standard form.

Answers

Answer:

x²+11x+28

Step-by-step explanation:

(f - g) (x) = f(x) - g(x)

x² + 12x + 32 - (x + 4) = x² + 11x + 28

I need some help with geometry?​

Answers

39=9x+7-3x+20

Subtract 27 from each side

12=6x
2=x

Now plug in 2 for x to find AB and BC

9x+7= AB
9(2)+7=AB
18+7= AB
25= AB

-3x+20= BC
-3(2)+20= BC
-6+20= BC
14= BC

khan academy

will mark.​

Answers

Given:

[tex]\theta_1[/tex] is located in IV Quadrant.

[tex]\sin (\theta_1)=-\dfrac{24}{25}[/tex]

To find:

The value of [tex]\cos \theta_1[/tex].

Solution:

We have,

[tex]\sin (\theta_1)=-\dfrac{24}{25}[/tex]

We know that,

[tex]\sin^2 \theta+\cos^2\theta=1[/tex]

So,

[tex]\sin^2 (\theta_1)+\cos^2(\theta_1)=1[/tex]

[tex]\left(-\dfrac{24}{25}\right)^2+\cos^2(\theta_1)=1[/tex]

[tex]\cos^2(\theta_1)=1-\dfrac{576}{625}[/tex]

[tex]\cos^2(\theta_1)=\dfrac{625-576}{625}[/tex]

Taking square root on both sides, we get

[tex]\cos (\theta_1)=\pm \sqrt{\dfrac{49}{625}}[/tex]

[tex]\cos (\theta_1)=\pm \dfrac{7}{25}[/tex]

[tex]\theta_1[/tex] is located in IV Quadrant. In IV Quadrant the value of cos is positive. So,

[tex]\cos (\theta_1)=\dfrac{7}{25}[/tex]

Therefore, [tex]\cos (\theta_1)=\dfrac{7}{25}[/tex].

What is the solution?

1

Group of answer choices

(0,-2)

(0,3)

(-1,-1)

(-2,0)

Answers

Answer:

(-1,-1)

Step-by-step explanation:

Because that is where the dot is.

Hope this helps :)

Answer: C
I hope this helps u!!

solve and find the solution sets of thr given inequaloties and represent them in number line.
1. x-3<6​

Answers

Answer:

panomonasabe kumainka ng tae masarap ba gustumupa ha gustu mo gutu mo

x - 3 < 6         {add 3 to both sides}

x < 9

graph

x∈(-∞; 9)

Find the length of the third side of the right triangle

The length of the third side is?

Answers

Answer:

12

Step-by-step explanation:

by pythagoras’ theorem:

a^2 + b^2 = c^2

5^2 + b^2 = 13^2

b^2 = 144

b = 12

Answer:

blurry

Step-by-step explanation:

noob

I need help with my math!

The diagram compares the ratio of girls in the chorus to boys in the chorus. What is the ratio of girls to boys? If there are 50 students in the chorus, how many are girls, and how many are boys? ??50 The ratio of girls to boys is too. The number of girls in the chorus is. The number of boys in the chorus is.

Answers

Answer:

there are a total of 20 boys and 30 girls in the choir of 50 students

Step-by-step explanation:

Scale the ratio 2:3. so that the numbers on either side sum to 50 . 2+3=5 , and 50÷5=10 , so we scale our ratio by a factor of 10 . So there are a total of 20 boys and 30 girls in the choir of 50 students

Graph by finding the intercepts
9x-15y = 45

Answers

Answer:

Look at picture

Step-by-step explanation:

X intercept is when y = 0. so...

9x -15*0 = 45

9x = 45

x = 5. so the coordinate is (5,0)

Y intercept is when x = 0. so...

9*0 - 15y = 45

y = -3. so the coordinate is (0,-3)

then you plot these 2 points and draw a line going across them

A triangle with area 50 cm^2 has side lengths 10cm and 22cm. What is the magnitude of the included angle?

Answers

Answer:

can we go to bed first

Step-by-step explanation:

then i will check your speed

Answer:

27°

Step-by-step explanation:

A = ab sinC / 2

50 = 10 * 22 * SinC / 2

sin C = (50 * 2) / (10 * 22) = 100 / 220 = 0.455

C = 27°

Which of the following information would best be displayed on a pie chart?

a) How much of a family’s monthly budget goes to groceries, housing, and entertainment.
b) How many times the phone rings in a 24-hour period.
c) The heights of the students in a class.
d) The rate of growth of a puppy the first year.

Answers

Answer:

A

Step-by-step explanation:

The answer is: a

Explanation: the others would probably be better displayed as a column or bar graph

please i really need help, this is due in 10 minutes!!

Answers

Answer:

see below

Step-by-step explanation:

3x+6=total cost

3(8)+6=30$

what is the volume of the figure​

Answers

Answer:

5,376in^3

Step-by-step explanation:

find the volume of the smaller box first

10×4×12 = 480in^3

find volume of bigger box

17×12×24 = 4,896in^3

add both volumes 4,896 +480 = 5,376in^3

Answer:

v = 5,376

Step-by-step explanation:

So the first thing we have to do is figure out the volume for the first part of the cube figure.

To do this we just multiply H x W x L =

In this case v = 4,896

Now we do the same thing with the other rectangular prism:

10 x 4 x 12 = 480

Now that we have the 2 volumes we add them together:

4,896 + 480 = 5,376

Hence the total volume = 5,376

Can anyone help me out?

Answers

The correct answer is C.

There were 12 boys and 20 girls in chorus.
What is the ratio of boys to girls?
A:3:8
B:5:3
C:3:5
D:5:8

Answers

Answer:

3:5

Step-by-step explanation:

you divide them by 4!

Find the number in each case.
1. 70% of a numbеr iѕ 63

thanks to everyone helping :)

Answers

Answer:

[tex]90[/tex]

Step-by-step explanation:

Let the unknown number be x

[tex]x \times \frac{70}{100} = 63 \\ x = \frac{63 \times 100}{70} \\ x = 90[/tex]

Hope this helps

Can I have the brainliest please?

~Hi1315~

Answer:

90

Step-by-step explanation:

If 70% of a number is 63, we can call that number x and make the following equation:

0.7x = 63

Now we just need to solve for x:

x = 63/0.7

x = 90

So the original number is 90.

How do we know we’re right? If you do 70% of 90 (aka 0.7*90), you’ll get 63, so we know it’s correct.

Patrick invested money into a special savers bank account each year money in the account earns 4% interest after one year, the total amount of money in the account was £291.20 how much did Patrick invest?

Answers

Answer: £280

Step-by-step explanation:

After a year, the total amount that was in the account was £291.20 which according to the question is 4% more than the amount Patrick invested.

Assume the amount invested is x.

x + 0.04x = 291.20

1.04x = 291.20

x = 291.20/1.04

= £280

HELP PLS!! Whitney conducted a survey of grocery store customers to determine the most popular brand of bread. Of the 72 people sh
surveyed, 11 customers liked Moonbeam, 24 customers liked Cora Lee, 17 customers liked Wondrous Loaf, and 8 customers
liked Mostess.

Identify the sample size in the situation above.

A. 24

B. 132

C. 72

D. 60

Answers

Answer:

72 totalHence population sample is 72

Steven bought a new computer at the end of a sale. The price of the computer was $52 on the day he bought it. The next day it had been marked up by 40%. What was the new price after the sale?

Answers

Answer:

$72.80

Step-by-step explanation:

You would multiply 52 with .40 to get 20.8. This is how much the price increased by. Then you would add the 20.8 to your original price of 52 to get 72.80.

(Also you use .40 initially because percent means out of 100. So 40% is the same as .4)

The new price after the sale of a new computer is, $72.8

What is mean by Percentage?

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;

The price of the computer was $52 on the day he bought it.

And, The next day it had been marked up by 40%.

Let the new price after the sale of a new computer = x

So, We can formulate;

⇒ x = $52 + 40% of $52

⇒ x = $52 + 40 × 52/100

⇒ x = $52 + $20.8

⇒ x = $72.8

Learn more about the percent visit:

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HELP HELP QUICK an olympic team won 20 medals. if 70% of the medals were gold, how many gold medals did they win?

Answers

they would have 14 gold medals

MIDSEGMENTS For problems 7-10, find the value of the variables. will give brainliest plzz

Answers

Answer: See explanation

Step-by-step explanation:

7.) 2 (x - 1) = 45

2x - 2 = 45

Add 2 to both sides

2x = 47

x = 23.5

8.) 5x - 2 = 2 (4)

5x - 2 = 8

Add 2 to both sides

5x = 10

Divide both sides by 5

x = 2

9.) x = 2 (30)

x = 60

10.) 3x - 6 = 2 (x)

3x - 6 = 2x

Add 6 to both sides

3x = 2x + 6

Subtract 2x from both sides

3x - 2x = 6

x = 6

2x + 1

Substitute x for 6

2 (6) + 1

12 + 1 = 13

2y = 13

Divide both sides by 2

y = 6.5

Hope that helped!

What is the slope of a line perpendicular to the line whose equation is x-y=6x. Fully reduce your answer.

Answers

Answer  

1/5

Step-by-step explanation:

The slope of a perpendicular line is the negative reciprocal. Since y=-5x(m=-5), the slope is -(-1/5) which is 1/5

The slope of a line perpendicular to the line x - y = 6x is 1/5.

Here,

The equation of line whose equation is,

⇒x - y = 6x

We have to find the slope of a line perpendicular to the line x - y = 6x.

What is Equation of line?

The general equation of a straight line is,

y = mx + c

Where, m is the slope of the line.

Now,

The equation of line whose equation is,

⇒x - y = 6x

⇒ y = -5 x

Hence, the slope is -5.

The slope of a perpendicular line is the negative reciprocal.

So, The slope of a line perpendicular to the line x - y = 6x is,

⇒ [tex]-(\frac{1}{-5} )[/tex]

⇒ [tex]\frac{1}{5}[/tex]

The slope of a line perpendicular to the line x - y = 6x is 1/5.

Learn more about the Equation of line visit:

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Which three statements are true of a blackbody radiator? O A. It emits a range of wavelengths of EMR. I B. It emits EMR at all frequencies. I C. It emits frequencies of EMR that depend on its temperature. D. It does not reflect much of the EMR it receives.​

Answers

Answer:it’s A. C. D.

Step-by-step explanation:

A.p.e.x

The three statements that are true of a blackbody radiator are; A. It emits a range of wavelengths of EMR. C. It emits frequencies of EMR that depend on its temperature. D. It does not reflect much of the EMR it receives.​

What is a blackbody radiator ?

A blackbody radiator is an object which absorbs all the electromagnetic radiation at varying frequencies and angles of incidence.

Blackbody radiators posses a cavity which does not allow heat to escape from the radiator.

The electromagnetic spectrum is the distribution of radiation due to the different frequencies at which it radiates and its different intensities, that radiation is formed by electromagnetic waves, that are transverse waves formed by an electric field and a magnetic field perpendicular to it.

Therefore, we can conclude that the three statements that are true of a blackbody radiator are as listed.;

A. It emits a range of wavelengths of EMR.

C. It emits frequencies of EMR that depend on its temperature.

D. It does not reflect much of the EMR it receives.​

Hence, the three statements that are true of a blackbody radiator are option A, C and D.

Learn more about Blackbody radiator :

brainly.com/question/16448055

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Please please help me, I don’t understand at all, I will truly appreciate it! Thank you

Answers

the answer is A.

y = x^2 + 2 simply means that y is whatever x is to the second power, plus 2. so, -2^2 = 4. 4 + 2 = 6.

you can work this through the other options but A is the answer.

pls help w math question

Answers

Answer:

x > -2

Step-by-step explanation:

The line on the graph points toward the right, so it would be a greater than sign ( > ). The sign is underlined because the line dot is filled in. If it wasn't filled in, it would not be underlined

The point on the line starts at negative 2.

hope this helps :)

Jack has written the name of each planet of the solar system on a separate piece of paper and has placed all these pieces of paper in a bag. The names he included are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If he picks a piece of paper at random from the bag, what is the probability that the name of the planet written on it contains at least 6 letters?

Answers

Answer:

The probability that it would contain at least 6 letters is: 5/8

Step-by-step explanation:

From the question given above,

We know that there are 8 planet that was given.

Mercury        7 letters

Venus           5 letters

Earth             5 letters

Mars              4 letters

Jupiter            7 letters

Saturn             6 letters

Uranus             6 letters

Neptune.          7 letters

Therefore,

P(at least 6 letters) + P( Less than 6 letters) = 1

P (at least 6 letters) + P (3 planet) = 1

P (at least 6 letters) +  ( 3/8) = 1

P(at least 6 letters) = 1 - (3/8)

= 5/8

You dump the 49 coins from your piggy bank into a CoinstarCountemUp machine. You have only dimes and quarters which the CoinstarCountemUp machine counts as $7.45. Find the number of quarters and dimes in your Piggy bank.

Answers

Answer:

17 quarters and 32 dimes

Step-by-step explanation:

Just got a calculator out and started with an estimated guess and changed it till I got it correct.

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