Mathematics High School

In triangle ABC, angle C is a right angle. Find the value of the trig function.
Find the cos(A) if c= 15, a=9, b= 12

In Triangle ABC, Angle C Is A Right Angle. Find The Value Of The Trig Function.Find The Cos(A) If C=

Answers

Answer 1

Answer:

its a

Step-by-step explanation:

Related Questions

Solve 81^x=27^x +2
x=1
x=2
x=5
x=6

Answers

Answer:

x=6

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

[tex]{3}^{4x} = {3}^{3( x+ 2)} [/tex]

4x = 3(x + 2)

4x = 3x + 6

4x - 3x = 6

x = 6

An answer with a reasonable response will get brainiest. It is in the picture

Answers

Answer:

M = 12.5

Step-by-step explanation:

Simple,

2 times 12.5 is 25

4 times 12.5 is 50

6 times 12.5 is 75

8 times 12.5 is 100

The "m" is just a variable. Kinda like a question mark.

What will be the first negative term in the sequence 87,84,81​

Answers

Answer:

a₃₁

Step-by-step explanation:

The terms have a common difference between consecutive terms, that is

d = 84 - 87 = 81 - 84 = - 3

This indicates the sequence is arithmetic with nth term

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 87 and d = - 3 , then

[tex]a_{n}[/tex] = 87 - 3(n - 1) = 87 - 3n + 3 = 90 - 3n

To find when [tex]a_{n}[/tex] < 0 , solve

90 - 3n < 0 ( subtract 90 from both sides )

- 3n < - 90

Divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity, then

n > 30

Thus the 31st term will be the first negative term

What is 23x9+37-213+(5x12)

Answers

Answer: 91

is that a x or multiply?

i need the answerrrrr

Answers

Answer:

the distance between the points is 9.84885780 and so on so if you round to the nearest tenth it would be 9.8 :)

Step-by-step explanation:

The base of a triangle is 2 more than three times the side lengths (x). If the
perimeter is equal to 97, then find the base .

Answers

Answer: 15

Step-by-step explanation:

Base is y
Side lengths x
y+2=3•x
P=2x+y
2x+y=97
2x=97-y
x=97-y/2 plug that into
3x=y+2
3(97-y/2)=y+2 multiply by 2
3(97-y)=2(y+2)
292-3y=2y+4
-3y-2y=4-292 multiply by (-1)
5y=288
y=288/5
y=57.6

3x=y+2
3x=57.6+2
3x=59.6
x=19.86

97=2•19.86+57.6
97=39.72+57.6
97=97.32
This is the best I came up with.

Good luck

Determine the intercepts of the line.
y = -32 + 12
Y-
X-

Answers

Answer:

y = − 20

x = none

Step-by-step explanation:

There is no X intercepts

-32 + 12 = 20

Solve for x and y simultaneously

Pls help me ​

Answers

I don't think its possible to do this... you have to have 2 equations

Here is it Y= 2/5x + 6/5, you just need to write it in the explicit form and then simplify it

Given two solutions x=-5 and x=7 of a quadratic function, is the value of a =1 or can the value of a different value?

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i think it’s 19 not sure

PLSS HELPP!!! I WILL BE GIVING BRAINLIEST AND POINTS:(!!

Answers

Answer:

A≈1628.55

Step-by-step explanation:

A=(6ah)+3sqr3a^2=6·8·27+3·sqr3·8^2≈1628.55376

Jackie has a poster that is 8 inches wide by 11 long inches. She wants to enlarge it so that the length is 33 inches. What should the width be?

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Answer:

it is 24inches

Step-by-step explanation:

33/11=3

3x8=24

i need help with graph pleasee​

Answers

Answer:

I drew the graph

I hope this helps you

do u need it still? i can help if not

Can you please answer without sending links because I can’t open them, thanks!

Answers

Answer:

B. C. E.

Explanation:

In answer B, 4b means four of that variable, so you would add them all together, same goes with answer C. In answer E, you would use the "multiply by the reciprocal" rule, which basically means to keep the b as it is, change division to multiplication, and flip [tex]\frac{1}{4}[/tex].

Write the slope intercept equation for the following table

Answers

M or slope: 2
B or y intercept: 7
Equation: y=2x+7
I think this is right Srry if it’s wrong

Step-by-step explanation:

m = y2-y1/X2-X1

slope intercept equation is: y=Mx+b

The slope is based on the formula m and from there pick any points then do the forumla m to find the slope. Anything that have 0 as the X is b which is the y intercept.

Your answer would be

Slope: 2

y-intercept: 7

Answer: y=2x+7

Abcd is rotated counterclockwise about the origin.By how many degrees was abcd rotated?

Answers

Answer:

The rotation is 270 degrees counterclockwise

Step-by-step explanation:

Given

See attachment

Required

Degrees of rotation

From the question, the rotation is counterclockwise

Using point B and B' as points of reference.

[tex]B =(2,5)[/tex]

[tex]B' =(5,-2)[/tex]

The rule that supports the above is: rotation by 270 degrees counterclockwise.

Because the rule is:

[tex](x,y) ==>(y,-x)[/tex]

HELP PLEASE
Determine the maximum number of zeros of the polynamial function -8x^4 -x^2+2 please select the best answer choice provided

It’s 1 or 2 or 4 or 3

Answers

It’s 1 because of -8x^4-x^2+2

lec types 3/5 of a paragraph in 2/3 minute. If he continues at the same rate, what fraction of a paragraph can Alec complete in 1 minute?

Answers

Answer:

ik you in MS 118 but still the answer is 9/10

Step-by-step explanation:

multiply by the reciprocal 3/2.

3/5x3/2=9/10

A bullet fired from a gun has a muzzle velocity of 3510 km per hour how long dies it take to travel 100m

Answers

Answer:

A bullet fired from a gun has a muzzle velocity of 3510 km per hour how long dies it take to travel 100m

Step-by-step explanation:

Given :

Velocity of bullet = 3510 km/hr

Distance traveled = 100m

Converting distance in meter to kilometer :

(100 / 1000) km = 0.1 km

Recall :

Speed = Distance /time

Time taken = Distance / speed

Therefore,

Time taken = Distance / speed

Time taken = 0.1 km / 3510 km/hr

Time = 2.849 * 10^-5 hour

Someone help please

Answers

Answer:

-2x2 y1/3

Step-by-step explanation:

Find the area. Simplify your answer.
x+7 x+2

Answers

Answer:

8x+2

Step-by-step explanation:

I think that's right I hope it is

The area of the quadrilateral is (x² + 9x + 14).

Given is a quadrilateral with height equal to (x+7) and the base is (x+2), we need to find the area of the quadrilateral,

So, to find the area of a quadrilateral, we need to know the lengths of both the height and the base.

In this case, the height is given as (x+7) and the base is given as (x+2).

The formula to find the area of a quadrilateral is:

Area = (base × height)

Let's substitute the given values into the formula and solve for the area:

Area = [(x+2) × (x+7)]

To simplify the expression, let's expand the brackets:

Area = (x² + 7x + 2x + 14)

= (x² + 9x + 14)

So, the area of the quadrilateral is (x² + 9x + 14).

Learn more about Areas click;

https://brainly.com/question/30307509

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Identify the lateral area and surface area of a right cone with radius 7 cm and slant height 15 cm. Answer ASAP!

Answers

Answer:

Lateral area:

A(l) = πrl = 3.14*7*15 = 329.7 cm³

Surface area:

A = πr(r + l) = 3.24*7(7 + 15) = 498.96 cm³

Answer:  498.96 cm³

Lateral area:

A(l) = πrl = 3.14*7*15 = 329.7 cm³

Surface area:

A = πr(r + l) = 3.24*7(7 + 15) = 498.96 cm³

A dump truck delivers dirt for $6 per cubit foot. The dimensions are 4 3/4 ft by 8 ft by 17 ft. How much does a full load of dirt cost

Answers

Answer:

None. There can't be any dirt in it because it's a hole.

Step-by-step explanation:

A person invests 3500 dollars in a bank. The bank pays 6.25% interest compounded annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 11100 dollars?

Answers

18.328 or 18.3 years

The duration of time period required is 2.4 years.

What is a compound interest?

Compound interest simply means that the interest associated with a bank account, loan, or investment increases exponentially over time.

Given that, A person invests 3500 dollars in a bank. The bank pays 6.25% interest compounded annually.

A = P(1+r/100)ⁿ

n = time

A = amount

P = principal

11100 = 3500(1+0.0625)ⁿ

3.171 = (1.0625)ⁿ

Taking log to both sides,

log(3.171) = nlog(1.0625)

n = 2.40

Hence, the required time is 2.4 years.

For more references on compound interest, click;

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What is the length of the missing leg?

Answers

C = 17.5 I’m pretty sure

whats the volume (5 points)​

Answers

Answer is: 20 because, u multiple 5 times 2 then, 10 times 2 which is 20 :D

Give me 3 reasons why the penguins are the best animal will give brain-list

Answers

Answer:

‏‏‎ ‎

Step-by-step explanation:

#1 - they look cool

#2 - they can swim

#3 - they eat fish

In 2005 the U.S. Census Bureau reported that 68.9% of American families owned their homes. Census data reveal that the ownership rate in one small city is much lower. The city council is debating a plan to offer tax breaks to first-time home buyers in order to encourage people to become homeowners. They decide to adopt the plan on a 2-year trial basis and use the data they collect to make a decision about continuing the tax breaks. Since this plan costs the city tax revenues, they will continue to use it only if there is strong evidence that the rate of home ownership is increasing. a) In words, what will their hypotheses be

Answers

Answer:

H0 : Number of homeowners stays the same

H1: Number of homeowners increases.

Step-by-step explanation:

The hypothesis is to test if the level of home ownership rises or doesn't.

For this type of experiment,

The null hypothesis is the current level of home ownership.

The alternative hypothesis which is usually the opposite of the null is meant to challenge the claim of the Null. Hence, the null hypothesis will support the claim or hypothesis of the study, which is that the number of homeowners increases, hence, does not remain the same.

Therefore,

H0 : Number of homeowners stays the same

H1: Number of homeowners increases.

MNOP is a trapezoid with median QR. Find x.

Answers

Answer:

D. x = 7

Step-by-step explanation:

Midsegment of a trapezium = ½(sum of the lengths of the parallel bases) => Trapezoid midsegment theorem

Thus:

QR = ½(NO + MP)

QR = 14

NO = 8

MP = 2x + 6

Plug in the values into the equation

14 = ½(8 + 2x + 6)

14 × 2 = ½(8 + 2x + 6)×2

28 = 8 + 2x + 6

28 = 14 + 2x

28 - 14 = 14 + 2x - 14

14 = 2x

14/2 = 2x/2

7 = x

x = 7

Find the value of x. Round the length to the nearest tenth. The diagram is not drawn to scale.

Answers

Answer:

x ≈ 2879.4 m

Step-by-step explanation:

Measure of ∠DAC = 10°

Measure of ∠DAB = 90°

Measure of ∠BAC = 90° - 10° = 80°

By applying cosine rule in ΔABC,

cos(80°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

              = [tex]\frac{AB}{AC}[/tex]

0.17365 = [tex]\frac{500}{x}[/tex]

x = [tex]\frac{500}{0.17365}[/tex]

x = 2879.36

x ≈ 2879.4 m

What is the measure of angle 3?

Answers

the measure of angle 3 is 90
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