Mathematics High School

please help me with this question

Please Help Me With This Question

Answers

Answer 1

Answer:

cosθ₁ = - [tex]\frac{5}{13}[/tex]

Step-by-step explanation:

Given

sinθ₁ = - [tex]\frac{12}{13}[/tex] = [tex]\frac{opposite}{hypotenuse}[/tex]

This is a 5- 12- 13 right triangle

with opposite = 12, adjacent = 5 and hypotenuse = 13

Given θ₁ is in the 3rd quadrant where cosθ₁ < 0 , then

cosθ₁ = - [tex]\frac{adjacent}{hypotenuse}[/tex] = - [tex]\frac{5}{13}[/tex]

Related Questions


Someone helpp plzzzzzz

Answers

its d
hope this helps

Which describes the correlation shown in the scatterplot

Answers

The answer is c because it does not lean more to the left or right.
Hope this helps!!

What is the measure, in degrees of A?

Answers

Answer:

[tex] = \frac{1}{2} \times 134 \degree \\ = 67 \degree[/tex]

"(67)"degrees trust me

pls help me with this maths equation

Answers

Answer:

Step-by-step explanation:

given :

y = 120 degree

z = 57 degree

angle x = ?

first lets find angle c in triangle BDC

angle c + z = y (sum of two interior opposite angle is equal to the exterior angle formed)

angle C + 57 = 120

angle C = 120 -57

angle C = 63 degree

Now lets find angle B in triangle BDC

angle B + angle C + z = 180 degree (sum of interior angles of a triangle)

angle B + 63 + 57 = 180

angle B + 120 = 180

angle B = 180 - 120

angle B = 60 degree

now for angle x

angle B + z = angle x (sum of two interior opposite angles is equal to the exterior angle formed)

60 + 57 = x

117 = x

What is the exact value of the trigonometric ratio of tan-240 degrees?

Answers

Tan240=1.732050808
Tan^-1(240)=89.76126897

In base 2, what is the value of 1011₂ + 10111₂

Answers

1011₂ + 10111₂

= (1000₂ + 10₂ + 1₂) + (10000₂ + 100₂ + 10₂ + 1₂)

= 10000₂ + 1000₂ + 100₂ + 2 (10₂) + 2 (1₂)

= 10000₂ + 1000₂ + 100₂ + 2 (10₂) + 10₂

= 10000₂ + 1000₂ + 100₂ + 100₂ + 10₂

= 10000₂ + 1000₂ + 2 (100₂) + 10₂

= 10000₂ + 1000₂ + 1000₂ + 10₂

= 10000₂ + 2 (1000₂) + 10₂

= 10000₂ + 10000₂ + 10₂

= 2 (10000₂) + 10₂

= 100000₂ + 10₂

= 100010₂

Need help with figuring out this zingoes problem asap, willing to give brainliest!

Answers

Answer:

The yellow trapezoid, blue rectangle, and whatever that purple thing is are zingoes

Step-by-step explanation:

As far as I can tell, all the correct examples are

1) Symmetrical

2) Have a line splitting them symmetrically and does not go above or below the shape (Does that make sense?)

The wrong examples don't have any of the characteristics told above. For example, the square would be wrong because it doesn't even have a line

(P.S- This isn't my picture, just found it on the web. Shout out to whoever owns this)

OASIIO - II - TWO WAY POWER CIENTIFIC CALCULATOR S-A.AKR 국 2401 . 0​

Answers

Answer:

I can't understand !!!!!!!!!

PLZ HELP I will give brainliest :)))

Answers

Answer:

The answer should be A.

Step-by-step explanation:

The answer should be A! :)

Can someone help me? It's urgent and thank you!

Answers

Answer:

11 in

Step-by-step explanation:

The area of a square is given by

A = s^2 where s is the side length

121 = s^2

Taking the square root of each side

sqrt(121) = sqrt(s^2)

11= s

Answer:

The side of square is 11 m.

Step-by-step explanation:

To calculate the side of square .

Here, given area of square which is 121 inches².

Using Formula :-

Area of square = ( side )²

where, side is the length of side of square.

Solution :-

Area of square = ( side )²

121 inches² = side²

Taking square root of both side

√121 inches² = √side²

11 inche = side

Hence, The side of square is 11 inche.

Which line of best fit is the best choice for the data given below?

Answers

It would be D as it has a the tightest spread between the points and the least outliers

Jake volunteers to help out his younger brother's basketball team in his free time. One of his tasks is to ensure that all the basketballs have enough air in them. Given that a properly inflated basketball measures 8.8 inches across, what is the total volume of air inside six of Jake’s basketballs? Assume that the wall of each ball is infinitely thin.

Answers

Answer:

The volume is 2140.98 inches

Hope this helped!

Answer:

681.47 π cubic inches

Step-by-step explanation:

Huxian's father gives her $120 as her monthly allowance. a) If she spends an average of 5 dollars a day, find the amount on money that she is left with after 1) 3 days 2) 6 days 3) 10 days

Answers

Answer:

3 days=  $105, 6 days= $90, 10 days= $70

Step-by-step explanation:

You can rewrite this equation as y=120-5x

x is the amount of days passed

plug in 3 for x and you get 15. 120-15=105

plug in 6 for x and you get 30. 120-30=90

plug in 10 for x you get 50. 120-50=70

Hope this helps!

:)

Simplify (-4a^5b) (2a^2b)

Answers

Answer:

[tex]-8a^{7b}[/tex]

Step-by-step explanation:

[tex](-4 a^{5b}) (2a^{2b}) = -(2^2 a^{5b}) (2a^{2b})\\[/tex]

                    [tex]= -(2 ^2 \times 2) \times a^{5b + 2b}\\\\= -(2 ^{2+1}) \times a^{7b}\\\\=-(2^{3}) \times a^{7b}\\\\= - 8 a^{7b}[/tex]

Help me please ASAP tysm

Answers

Answer:

2/3 ft

Step-by-step explanation:

area of triangle =base*height/2

2/5=base*6/5/2

2/5 *2 =base * 6/5

4/5 =base*6/5

4/5÷6/5=base

4/5 * 5/6=base

20/30=base

2/3=base

therefore base=2/3 ft

Bob and Carl each rented the same kind of moving truck from EZ Move. There was a flat rental fee plus a charge per mile that the truck was driven. Bob’s cost for his truck was $112.96 for 138 miles. Carl’s cost for his truck was $142.78 for 209 miles. Which equation can be used to represent the cost of the rental truck?

Round to the nearest hundredth if necessary.

Answers

Answer:

ok so we can turn both of these into equations

Bob: 112.96 divided by 138=0.81855072463

so about 82 cents per mile

Carl: 142.78 divided by 209=0.68315789473

so about 68 cents per mile

so ya i am a little confused but heres what i got

If its length is 4x - 3 meters and its width is 2x + 6meters , what is the actual width of the rectangle?

Answers

Answer:

p

=

2

(

4

x

+

3

)

+

2

(

2

x

−

6

)

or simplified  

p

=

12

x

−

9

Explanation:

By definition the perimeter of an object is the length of all its sides.

Also by definition, for a rectangle the 2 sides of the width are equal and the 2 sides of the length are equal.

Therefore the equation for the perimeter of a rectangle can be written as:

p

=

2

⋅

l

+

2

⋅

w

where  

p

is the perimeter,  

l

is the length and  

w

is the width.

Substituting what was given about the length and width gives the equation:

p

=

2

(

4

x

+

3

)

+

2

(

2

x

−

6

)

Simplifying this equation gives:

p

=

8

x

+

3

+

4

x

−

12

p

=

8

x

+

4

x

+

3

−

12

p

=

12

x

−

9

Step-by-step explanation:

Factorize : x^3 + 6x^2 + 11x + 6
can you tell me the fast cause i am doing my exam:)

Answers

I’m not sure if it’s right but I got (x+1)(x+2)(x+3) as an answer.

Explanation: factor by grouping (x+1)(x^2+5x+6)
Find one factor use factor by grouping and that’s how I got the answer (x+1)(x^2)(x+3) I hope this helps you

The hall is a rectangle that measures 4m long by 90 cm wide what is the area

Answers

Step-by-step explanation:

the answer is 36000 cm2

please mark the brainliest

QUESTION:

The hall is a rectangle that measures 4m long by 90 cm wide what is the area?

=============================ANSWER:

[tex]\large\tt{36000 \: cm²}[/tex]=============================#BrainliestBunch

┻━┻︵└(՞▽՞ └)

Jacinta received a scholarship from the american meteorological society and was able to pay 43% of one year of her college with the scholarship money the remainder 11, 033.75 for the year was posted for with a student loan what was the total cost of 4 years

Answers

Answer:

$77429.824

Step-by-step explanation:

Let the total college cost for one year = x

43% of x was paid with scholarship fee

Percentage left = 100% - 43% = 57%

57% is equivalent to 11,033.75

57/100x= 11,033.75

0.57x = 11033.75

x = 11033.75 / 0.57

x =19357.456 ; this is Jacinta's college fee for a year ;

Hence

College fee for 4 years :

19357.456 * 4 = $77429.824

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Answers

Oh yes the normal question I ask of myself everyday, and for some reason I have no answer.

Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a 15% alcohol solution. The equation 0.10x + 0.15(50 – x) = 0.12(50) can be used to find the amount of 10% alcohol solution Bruce should use.

How much of the 10% alcohol solution should Bruce use?

How much of the 15% alcohol solution should Bruce use?

Answers

Answer:

10% = 30 15% = 20

Step-by-step explanation:

_

The students at Riverview High School were asked to vote on their preference for new school colors. The school principal was interested to see how the student-athletes might vote differently from the students who are not athletes. The table shows the results of the vote. What percent of the student-athletes voted for red and gold as the new school colors? Round your answer to the nearest whole percent. 27% 42% 51% 67%

Answers

Answer: %27

Step-by-step explanation: 90/338   x/100

90x100=9000

9000/338=%27

                       

The volume of a cuboid is 462cm3. The length is 11cm and the width is 60mm. Work out the height of the cuboid

Answers

Answer:

step-by-step explanation: 1cm is equal to 10mm

The volume of a cuboid is length ×breadth×height

We start by converting 60 mm into cm which will be 6cm

Solution :

462cm3=11cm×6cm

462cm3/66=66cm/66

The final answer will be 7cm

Therefore the height is 7cm

Directions: Solve for x. Round your answer to the nearest tenth. Make sure you calculator
is in degree mode!
541
9

Answers

Answer:

12.4

Step-by-step explanation:

using x= 9tan54 the results is 12.38743728 but 12.4 to the nearest tenth

Given the triangle below, what is the measure of x to the nearest foot?

Answers

Answer:

18 ft

Step-by-step explanation:

Since the triangle is right angled ; we could use trigonometry ;

Using the angle , 40° ; adjacent side, = 14 feets ; hypotenus = x

Cos θ = Adjacent / hypotenus

Cos 40 = 14 / x

0.7660444 = 14 / x

0.7660444x = 14

x = 14 / 0.7660444

x = 18.27

= 18 ( nearest foot)

I NEED HELP WITH THIS NOWWW

Answers

18x+48+32+12x

18x+80+12x

30x+80

that's 3 different expressions equivalent to the original

Answer:

You can first remove the parentheses to get 18x+48+32+12x

Then you can combine like terms to get 30x+48+32

Finally you can finish combining like terms to get 30x+80

You could also enter 10(3x+8) because of the distributive property.

Step-by-step explanation:

How do I find the value of y in y=mx+c

Answers

Plug in your coefficients

I told you I was not smart :[

Answers

Answer:

Attached below

Step-by-step explanation:

Trapezoid: Opposite side are parallel in trapezium.

So, opposite sides are parallel in  all given quadrilateral except second.

Therefore, attached figure is not trapezium.

Answer:

.........

Step-by-step explanation:

Find the distance between the given points. Round to the nearest tenth.

Answers

Answer:

(7 , -3)

Step-by-step explanation:

The distance between A and B is 7 squares to the right and 3 squares down

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