77
If the measure of angle is 8 is 4 , which statements are true?
A-cos(8) = -1
B-The measure of the reference angle is 60°.
C-The measure of the reference angle is 30°.
D-The measure of the reference angle is 45°.
E-sin() - 2
F-tan(O) = -1

77If The Measure Of Angle Is 8 Is 4 , Which Statements Are True?A-cos(8) = -1B-The Measure Of The Reference

Answers

Answer 1

Answer:

fifth option is the correct ans

sin(thita) = -sqare root 2 / 2

Answer 2

The statements which are true are,

The measure of reference angle is 45° and tan (θ) = -1.

What is Reference Number?

Reference number associated with t is defined as the shortest distance from the x axis to the terminal point t, along a unit circle.

Reference angle is shortest angle measure from the X axis to the terminal side of the angle.

Reference angle = 2π - 7π/4 = π/4 = 45°

We have,

7π/4 = 2π - π/4

We also know that,

cos(2π - x) = cos x,

sin (2π - x) = -sin x

tan (2π - x) = -tan x

So, using theses identities,

cos (7π/4) = cos (2π - π/4) = cos(π/4) = 1/√2

sin (7π/4) = sin (2π - π/4) = -sin (π/4) = -1/√2

tan (7π/4) = tan (2π - π/4) = -tan (π/4) = -1

Hence the true statements are The measure of reference angle is 45° and tan (θ) = -1.

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Related Questions

Solve for x. Rolind to the nearest hundredth.

Answers

Your answer is A) 4.41

cos(51°) = x/7
x = 7 • cos(51)
x = 4.4052 = 4.41

The radius of a circle is 7 ft. Find its area to the nearest tenth

Answers

Answer:

153.9 ft²

Step-by-step explanation:

A(Circle) = πr²

⇒ π(7)² ⇒ 49π ≈ 153.9 ft²

Answer:

47.0

Step-by-step explanation:

A=L^2

A=7*7

A=47

47 to the nearest tenth

=47.0

8.6 divided by 1,000 =
find the quotient. divide decimals by power of ten.

Answers

The android sjsjsben 86

Use the fraction strips to compare 2/4 and 5/8. use the drop-down menus to explain your comparison.
Comparing 2/4 and 5/8 is the same as comparing the length of ____ of the 1/4 sections and _____ of the 1/8 sections.

The sections of 2/4 is _____ the length of 5/8. Therefore, 2/4 < 5/8.

Answers

Answer:

 [tex]\frac{2}{4} = 2 *\frac{1}{4} \\[/tex]

So the length of 2 of the 1/4 sections.

 [tex]\frac{5}{8} = 5* \frac{1}{8}[/tex]

So the length of 5 of the 1/8 sections.

Now,

[tex]\frac{2}{4} = x *\frac{5}{8}\\\\x = \frac{2}{4} * \frac{8}{5} = \frac{16}{20} = \frac{4}{5}[/tex]

Therefore 2/4 is 4/5 the length of 5/8.

The area of a kite is 120cm2. The length of one diagonal is 20cm. What is the length of the other diagonal?

Answers

Answer:

12cm

Step-by-step explanation:

The area of a kite is the product of the diagonals divided by 2:

A = (d1 * d2)/2

You can substitute what we have:

120 = (20 * d2)/2

And solve.

240 = 20 * d2

d2 = 12cm

The length of the other diagonal is 12cm.

What is area ?

Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.

here, we have,

SOLUTION:

Step 1:

In this question, we are given the following:

The area of a kite is 120. One of the diagonals is 20.

What is the length of the other diagonal?

Step 2:

The details of the solution are as follows:

we know that,

The area of a kite is the product of the diagonals divided by 2:

A = (d1 * d2)/2

You can substitute what we have:

120 = (20 * d2)/2

And solve.

240 = 20 * d2

d2 = 12cm

CONCLUSION:

The length of the other diagonal = 12 cm.

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What is the quotient? 8)48​

Answers

Answer: 6

Step-by-step explanation: 8 x 6 = 48, so therefore 8)48 would be 6.

Answer:

8 / 48

Step-by-step explanation:

quotient = 0

remainder = 8

Brainiest please

Select the situation below that is most likely to produce a 50-50 result. That is, 50% of the time the coin lands on heads and 50% of the time the coin lands on tails


a. Flipping the coin 10 times.
b. Flipping the coin 50 times.
c. Flipping the coin 1,000,000 times.
d. All situations are equally likely to produce a 50-50 result

Answers

Answer:

I believe the correct answer is d

Answer:

The answer is D

Step-by-step explanation:

I took the test :D

In an enclosure, there are 8 yellow chicks and 6 black and white chicks. The door opens and two chicks escape. What is the probability that both chicks were yellow?

Answers

Answer:4/13

Step-by-step explanation:

Number of yellow chicks = 8

Number of black and white chicks = 6

Total number of chicks = 8+6 = 14

The probability of the first yellow chick escaping will be 8 out of 14.

The probability of the second yellow chick escaping will be 7 out of 13 since there'll be 13 chicks left after the first yellow excaped.

Therefore, the probability that both chicks were yellow will be:

= 8/14 × 7/13

= 4/7 × 7/13

= 4/13

Therefore, the probability is 4/13.

hello please help i’ll give brainliest:)

Answers

Answer:

Its is 85

Step-by-step explanation:

It is 85 because you need to see out of all of those numbers which one is one is in the middle so just mark one number from each side untill you get to the middle number!

Dentro de 15 años la edad de Carlos será el doble de la edad de Ana. Hace 6 años la edad de Carlos era el triple de la de Ana. Calcular la suma de sus edades y dar como respuesta la suma de cifras de este resultado

Answers

Answer:

Ana tiene 27 años mientras que Carlos, tiene 69 años

La suma de las edades es: 27+69 = 96

La suma de las cifras de este resultado es 9+6 = 15

Step-by-step explanation:

Vamos a hacer una linea temporal para ubicarnos en tiempo.

AÑO 2021, Ana tiene una edad A mientras que Carlos tiene una edad C

15 años para adelante

AÑO 2036, la edad de Carlos es el doble de la de Ana

C = 2A

Si nos vamos 6 años para atrás

AÑO 2015, la edad de Carlos es el triple de la de Ana

C = 3A

Como de 2015 a 2036 pasan 21 años, podemos plantear que

La edad de Carlos + 21  va a ser 2 veces la edad de Ana, traducido:

C + 21 = 2A, pero en 2015, ya sabemos que la edad de Carlos es el triple de la de Ana, entonces:

3A + 21 = 2A. Si despejamos:

3A - 2A = -21

A = |21|  Ésta es la edad de Ana. (Ponemos valor absoluto porque una edad no puede ir negativa.

Si Ana en 2014 tiene 21 años, Carlos tiene 63 (el triple) por lo que sumamos 6 años y llegamos al presente:

En 2021, Ana tiene 27 años (21+6), mientras que Carlos tiene 69 (63+6). Edades actuales.

Nos corremos 15 años al futuro, por lo que llegamos al año 2036.

Carlos pasa a tener 84 años (69+15) y Ana, 42 (27+15) donde verificamos que la edad de Carlos, es el doble que la de Ana, 84/42 = 2.

Finalmente la suma de las edades es: 27+69 = 96

La suma de las cifras de este resultado es 9+6 = 15

A function is given by formula f(x)=x+7. What is f(3)?

Answers

Answer:

[tex]f(x) = x + 7 \\ f(3) = 3 + 7 \\ = 10[/tex]

The answer is f(x)= X+7 3+7 =10

What is 17% of 300 pleas help

Answers

I believe the answer is 51!

what I did was 0.17×300 which got me 51 ^^

Hey! The answer is 51

A circle has a circumference of 10 feet. What is the
diameter?

Answers

the diameter would be 3.18
um the diameter would be 3.18

Given AB CD find the value of X

Answers

Answer:

-2,0

Step-by-step explanation:

To find the x-intercept, substitute in  

0

for  

y

and solve for  

x

. To find the y-intercept, substitute in  

0

for  

x

and solve for  

y

.

Answer:

x=60

Step-by-step explanation:

there is a law that says that the 124 angle and the unknown equation are equal, i just dont remember what that law is. but you can create the equation 124=2x+4 to solve for x, subtract 4 over and now you have 120=2x, divide by 2 and you will finish with 60=x

leave any questions in the comments and i will try to answer them, and if this helps, pls give brainliest pls.

Choose the best graph that represents the linear equation: -2y = x + 6 Graph A On a coordinate plane, a line goes through (negative 6, 0) and (1, negative 3). Graph B On a coordinate plane, a line goes through (0, 3) and (2, 4). Graph C On a coordinate plane, a line goes through (0, 3) and (2, 2). Graph D On a coordinate plane, a line goes through (0, negative 3) and (6, 0). a. Graph A c. Graph C b. Graph B

Answers

Answer:

i think its A

Step-by-step explanation:

divide both sides by -2 which makes the y int -3 and A has a negative slope

Answer:

It's B

Step-by-step explanation:

Just took the test on Edge 2021

Find the missing value for the parallelogram

Answers

Answer:

y = 85°

z = 35°

x = 60°

Step-by-step explanation:

y) 180 - 120 = 60, therefore:

180 - (35 + 60)

=> y = 85

z)

=> z = 35

x)

180 - (35 + 85)

=> x = 60

Hope this helps!

Answer:

to find y

you find the bottom right angle

which is 180-120 = 60

then you do 60+35 = 95

then 180 -95 because the sum of all angles in a triangle is 180

so the answer is 85 = y

There is a rule where the alternate angles between the parallel lines are identical

if y = 85 that means that the angle next to 35 is 85

same for angle z, if the top right 35, that means that angle z = 35

Now you add 35 + 85 = 120

180 - 120 = 60 = angle x

In summary

x=60

y=85

z=35

Hope that answers your question

Don't hesitate to leave a comment if you are confused about something

Step-by-step explanation:

At Edison Middle School, 54.4% of the
72
students chose chicken tacos as their
favorite school lunch, and 36% chose fish
tacos. There are 750 students in the
school. How many did NOT choose a type
of taco?
PLZ HELPP (7th grade math) ASSAAPPP

Answers

Answer:

6.912 students did NOT choose a taco type out of the 72 students.

Step-by-step explanation:

I got the number of kids for 54.4% of 72 and 36%, and added them, then subtracted that from 72 to get the total amount

750 - 750 * 0.544 - 750 * 0.36 = 72.

PLS SOMEONE HELP ME

Answers

A and D are 85 degrees

Roberta invested $600 $ 600 into a mutual fund that paid 4% 4 % interest each year compounded annually. Write an exponential function of the form =() y = a ( b ) x to describe the value of the mutual fund then use that function to determine the value of the mutual fund in 15 15 years.

Answers

Answer:

600 X (1.04)^15

$1080.57

Step-by-step explanation:

The formula for calculating future value:

FV = P (1 + r) n

FV = Future value  

P = Present value  

R = interest rate  

N = number of years

600 X (1.04)^15  = $1080.57

Plssss help SUNDAY HOMEWORKKKKKKKKKKKK

Answers

Answer:

already did

Step-by-step explanation:

What is the vertex of the graph of the function f(x) = x^2 + 8x - 2?

Answers

Answer:

(-4,-18)

Step-by-step explanation:

go to math(way).com to find the answer

What is the domain of the function y = l n (x + 2)
A. x < -2
B. x > -2
C. x < 2
D. x > 2

Answers

Answer:

Option B.

Step-by-step explanation:

For a function f(x), the domain is the set of all the possible values of x that can be used in the function.

We know that the natural logarithm is only defined for positive real numbers.

So, the function:

Ln(x + 2)

Works always that

x + 2 > 0

So we can just solve this inequality for x, and that will give us the domain of the function.

To isolate x, we just need to subtract 2 in both sides of the inequality.

x + 2 - 2 > 0 - 2

x > - 2

This is the domain of the function.

The correct option is B.

Answer:

b.x>-2

Step-by-step explanation:

edge 2021

Find the area of the circle. Round to the nearest hundredth (3.14 for pie)

Answers

Answer:

hn

Step-by-step explanation:

gggggg

Answer the question on the picture!

Answers

Answer:

64 square inches

Step-by-step explanation:

im not 100% sure but i think its right

pls pls pls help me pls

Franco has a rock in his collection that is very smooth and glassy. He knows that the rock was formed by lava that cooled very quickly after a volcanic eruption. Which kind of rock does Franco have?

Group of answer choices

concrete

igneous

metamorphic

sedimentary





Benji is writing some observations of different samples in his mineral collection. Which of the following terms can both be used to describe luster?

Group of answer choices

hard and coarse

metallic and soft

grainy and rough

glassy and metallic





Shane uses a hand lens to examine a piece of granite rock. He observes that the granite is made up of very large crystals.

Group of answer choices

minerals

fossils

soils

shells

Answers

Answer: Hope This Helps!

Step-by-step explanation:

1: Igneous: Igneous rocks are formed by cooling magma. The location of the formation of the rock, as well as how fast the magma cools will determine the type of igneous rock.

2: Glassy and Metallic: Luster definition; the state or quality of shining by reflecting light; glitter, sparkle, sheen, or gloss: the luster of satin.

3: Minerals: The large mineral crystals in granite are evidence that it cooled slowly from molten rock material.

Find the number of real-number solutions of the equation. −x2 − 10x = 25

Answers

-2.083333333333

Step-by-step explanation:

I got a rational number which is -2.083333333

-2x-10x=25

-12x=25

x=-2.083333

Answer:

Step-by-step explanation:

[tex]-x^{2} -10x-25=0 SE CAMBIA LOS SIGNOS\\x^{2} +10X+25=0 (se utiliza (a^{2} + 2 ab^{2} + b^{2}), asi factorizando la expresion).\\(x+5)^{2} =0\\x+5=0\\x= -5[/tex]

Find the median, first quartile, third quartile, and interquartile range of the data.

68, 74, 67, 72, 63, 70, 78, 64, 76

Answers

Given:

The data set is:

68, 74, 67, 72, 63, 70, 78, 64, 76

To find:

The median, first quartile, third quartile, and interquartile range of the data.

Solution:

We have,

68, 74, 67, 72, 63, 70, 78, 64, 76

Arrange the given data in ascending order.

63, 64, 67, 68, 70, 72, 74, 76, 78

Now divide the data in two equal parts.

(63, 64, 67, 68), 70, (72, 74, 76, 78)

So, the median of the given data set is 70.

Divide each parenthesis in two equal parts.

(63, 64), (67, 68), 70, (72, 74), (76, 78)

Now, the first quartile is:

[tex]Q_1=\dfrac{64+67}{2}[/tex]

[tex]Q_1=\dfrac{131}{2}[/tex]

[tex]Q_1=65.5[/tex]

The third quartile is:

[tex]Q_3=\dfrac{74+76}{2}[/tex]

[tex]Q_3=\dfrac{150}{2}[/tex]

[tex]Q_3=75[/tex]

The interquartile range (IQR) is the difference between third quartile and first quartile.

[tex]IQR=75-65.5[/tex]

[tex]IQR=9.5[/tex]

Therefore, median is 70, first quartile is 65.5, third quartile is 75 and the interquartile range is 9.5.

A baby weighs 6.4 pounds at birth. At the end of ten months the baby has grown 2 1/2 times its birth weight. How many pounds did the baby weigh at the end of ten months?

Answers

Answer:

The answer would be 16.

Step-by-step explanation:

Its easy multiplication. I hope this helps you!

Answer:

16 pounds (i belive)

Step-by-step explanation:

6.4 lbs × 2 1/2 = 16 lbs

What is y⁵×y⁵=
pls answer it is grade 8 work​

Answers

Answer:

y^10

Explanation:

y^a × y^b = y^a+b

ahhhh someone help pls!!!!

Answers

Answer:

I may be wrong but I think it's 90 I may be wrong but hey I tryed.

Step-by-step explanation:

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