What is the measure of angle A please HELP I’ll give you BRAINLIEST

What Is The Measure Of Angle A Please HELP Ill Give You BRAINLIEST

Answers

Answer 1

Answer:

Option (3)

Step-by-step explanation:

By applying cosine rule in the triangle ABC,

BC² = AC² + AB² - 2(AC)(AB)cosA

5² = 3² + 7²- 2(3)(7)cosA

25 = 9 + 49 - 42cos(A)

25 = 58 - 42cos(A)

cos(A) = [tex]\frac{33}{42}[/tex]

A = [tex]\text{cos}^{-1}\frac{11}{14}[/tex]

A = 38.21°

A ≈ 38°

Option (3) will be the correct option.


Related Questions

pls help me my dads gonna hit me if i dont get this done

Answers

Answer:

(I can't answer if its greater than, less than, or equal to because you didn't

specify the number I have to compare to)

2. [tex]\frac{35}{8}[/tex]

3. greater than

4. [tex]\frac{1}{9}[/tex]

5. [tex]\frac{1}{6}[/tex]

6. [tex]\frac{4}{5}[/tex]

Step-by-step explanation:

simplify 5(x + 7) anybody

Answers

5x + 35

You multiply 5 by everything in the brackets. :)

Mia used 1/7 of an ounce of nuts to make 1/5 of a cake. How many ounces of nuts are needed to make a whole cake?

Answers

Answer:

For this case we can apply the following proportional rule:

Step-by-step explanation:

1/7 nuts. x

------------ = ----------

1/5 cake. cake

and solving for x we got:

x = 1/7

------- = 5/7 nuts

1/5

then the answer for this case would be 5/7 nuts

your welcome

A clothing outlet had a sale on jackets. A jacket priced at $233 was on sale, selling for 70% (use 0.7) of its price. How much did customers have to pay for the jacket (ignore taxes)?

Answers

Answer:
$163.10
Explanation:
70% = 7/10 = 0.7
$233 x 0.7 = $163.10

Answer:

Jackets cost $69.90.

Step-by-step explanation:

1. Multiply $233 by 70% (.70 as a decimal) to find how much less the jacket is.

2. Subtract that answer from the cost of the jacket.

233 * .70 = 163.1

233.00

163.10

$69.90

You can also multiply $233 by 30% and not have to subtract because your answer would BE the cost (70% + 30% = 100%).

233 * .30 = 69.90                 $69.90

what is laugh???????​

Answers

Answer:

Nevetni

Step-by-step explanation:

It meaning hungary : nevetni

Answer:

Expression of people when they are happy

Step-by-step explanation:

Hope it help

Mark brainliest

Thanks

Find the quotient.
2,593 dived 4

Answers

Answer:

648.25

Step-by-step explanation:

9. Which of the following groups of numbers are all prime numbers? O A.3. 11, 23, 31 OB.7. 17. 29. 49 OC. 2,3,5, 9 D.2, 5, 15, 19​

Answers

Answer:

The answer would be A.

Hopes this you. Have a good day!!

Answer:

Prime numbers are those that cannot be divided by another number (other than themselves and 1). In other words, prime numbers have factors of themselves and 1.

For example, 3 is a prime number because its only factors are 3 and 1.

6 is not a prime number because it can be factored to 3*2.

Therefore, the correct answer is a. 3,11,23,31

Hope it helps

Please me as brainliest

Thank you

help please, how do I answer these types of questions?​

Answers

the answer is 3/4, hope it helps

A line that includes the point (10, 0) has a slope of
5
What is its equation in slope-intercept
form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Submit
I need helppppppp !!!!!!! Due in 5 mins

Answers

9514 1404 393

Answer:

  y = 1/5x -2

Step-by-step explanation:

When a point and slope are given, sometimes it is easiest to start with the point-slope form of the equation. Then it can be rearranged to the desired form.

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

  y -0 = 1/5(x -10) . . . . . line with slope 1/5 through point (10, 0)

  y = 1/5x -2 . . . . . . . eliminate parentheses to get slope-intercept form

_____

Note that the slope in the attached picture is 1/5, but your problem text says it is 5. Very different equations will result from these different slopes.

The slope of a line is 1, and the y-intercept is -1. What is the equation of the line written in slope-intercept form?

Answers

Answer:

Step-by-step explanation:

slope (m) = 1

y-intercept (c) = - 1

Writing in slope intercept form

y = mx + c

y =  x - 1

hope it helps :)

What is the slope y+2=1/4(x-3)

Answers

Answer:

[tex]m=\frac{1}{4}[/tex]

Step-by-step explanation:

Given

[tex]y+2=\frac{1}{4}(x-3)[/tex]

Required

Find the slope

[tex]y+2=\frac{1}{4}(x-3)[/tex]

Subtract 2 from both sides

[tex]y+2-2=\frac{1}{4}(x-3) - 2[/tex]

[tex]y=\frac{1}{4}(x-3) - 2[/tex]

Open bracket

[tex]y=\frac{1}{4}x-\frac{1}{4}*3 - 2[/tex]

[tex]y=\frac{1}{4}x-\frac{3}{4} - 2[/tex]

Take LCM

[tex]y=\frac{1}{4}x+\frac{-3 - 8}{4}[/tex]

[tex]y=\frac{1}{4}x+\frac{-11}{4}[/tex]

[tex]y=\frac{1}{4}x-\frac{11}{4}[/tex]

An equation has the form:

[tex]y = mx + b[/tex]

Where

[tex]m = slope[/tex]

By comparing: [tex]y = mx + b[/tex] and [tex]y=\frac{1}{4}x-\frac{11}{4}[/tex]

[tex]m=\frac{1}{4}[/tex]

So, the slope is 1/4

ABC is a straight line.

A
в с
The length of AB is four times the length of BC.
AC = 75 cm.
Work out the length of AB.
mi
i

Answers

answe ac

Step-by-step explanation:because 827.0837

To find the quotient of 3 divided by 1/6 multiply 3 by what

Answers

Answer:

I am not fully sure but i think you multiply it by 6

Step-by-step explanation:

Because 3/ [tex]\frac{1}{6}[/tex] is 18 and if you multiply 3 times 6 you get 18

image attached
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Answers

Answer:

The answer will be A

Step-by-step explanation:

have a nice day/night

I dont understand this at all, I need the right anwser and Explanation please.

Answers

Answer:

a = 7; b = ⁷/2

Step-by-step explanation:

Recall the acronym, SOHCAHTOA

We would apply trigonometric ratio formula in finding a and b.

Reference angle [tex] (\theta) [/tex] = 60°

Opposite side to the reference angle = [tex] \frac{7\sqrt{3}}{2} [/tex]

Adjacent side = b

Hypotenuse = a

✔️To find a, we would apply SOH, which is:

[tex] sin (\theta) = \frac{opp}{hyp} [/tex]

Plug in the values

[tex] sin (60) = \frac{\frac{7\sqrt{3}{2}}{a} [/tex]

[tex] \frac{\sqrt{3}}{2} = \frac{\frac{7\sqrt{3}{2}}{a} [/tex] (sin 60 = √3/2)

[tex] \frac{\sqrt{3}}{2} = \frac{7\sqrt{3}{2}*\frac{1}{a} [/tex]

[tex] \frac{\sqrt{3}}{2} = \frac{7\sqrt{3}{2a} [/tex]

Cross multiply

[tex] \sqrt{3}*2a = 7\sqrt{3}*2 [/tex]

[tex] 2a\sqrt{3} = 14\sqrt{3} [/tex]

Side both sides by √3

[tex] 2a = 14 [/tex]

Divide both sides by 2

a = 14/2

a = 7

✔️To find b, apply TOA, which is:

[tex] tan (\theta) = \frac{opp}{adj} [/tex]

Plug in the values

[tex] tan (60) = \frac{\frac{7\sqrt{3}{2}}{b} [/tex]

[tex] \sqrt{3} = \frac{\frac{7\sqrt{3}{2}}{b} [/tex] (tan 60 = √3)

[tex] \sqrt{3} = \frac{7\sqrt{3}{2}*\frac{1}{a} [/tex]

[tex] \sqrt{3} = \frac{7\sqrt{3}{2b} [/tex]

Cross multiply

[tex] \sqrt{3}*2b = 7\sqrt{3} [/tex]

[tex] 2b\sqrt{3} = 7\sqrt{3} [/tex]

Divide both sides by √3

[tex] 2b = 7 [/tex]

Divide both sides by 2

b = 7/2

Timo was curious if quadrilaterals LMNR and PQNO were similar, so he tried to map one figure onto
the other using a rotation and a dilation.
M
N
LO
R
Q
Timo concluded:
"It's not possible to map LMNR onto PQNO using a sequence of rigid transformations and dilations,
so the quadrilaterals are not similar."

Answers

Answer:

c

Step-by-step explanation:

The two quadrilaterals LMNR and PQNO are not similar. Timo tried to map one figure onto the other using rotation and dilation methods. He concluded that they are not similar because the rigid transformations like rotation preserve congruence and dilation will not change the shape but it changes its size. So, this results in no congruence.

What is rigid transformation?Rotations, reflections, and translations are known as rigid transformations. They do not change the size or shape of a figure, they simply move it. These rigid transformations preserve congruence.

What is dilation?Dilation is not a rigid transformation, since they change the size of a figure. Dilation would not change the shape but changes the sizeThis would give us a similar, but not congruent figure.

Here Timo used rotation and dilation on the two quadrilaterals LMNR and PQNO. So, this resulted in a change in the size of the quadrilaterals. Because of this, Timo concluded that "it's not possible to map LMNR onto PQNO using a sequence of rigid transformations and dilations, so the quadrilaterals are not similar".

Learn more about rigid transformations and dilation here:

https://brainly.com/question/1616371

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Which of the following numbers is irrational? -9/5 , sqrt (5) , 7/3 , sqrt (9)

I WILL mark brainliest!

Answers

Sqrt 5 because it’s an imperfect square. Fractions with integers are always rational and sqrt 9 is perfect so it is also an integer.

Answer:

[tex]\large\boxed { \ ANS = \sqrt{5} }[/tex]

Step-by-step explanation:

Irrational numbers are numbers that cannot be written as simple fractions. All the numbers listed above except for [tex]\sqrt{5}[/tex] cannot be written as fractions.

• [tex]\frac{7}{3}[/tex] is already a fraction

• [tex]\frac{-9}{5}[/tex] is also already a fraction

• [tex]\sqrt{9}[/tex] is 3 and 3 can be written as [tex]\frac{3}{1}[/tex]

• [tex]\sqrt{5}[/tex]  is an irrational algebraic number and cannot be written as a simple fraction since it is equal to

2.23606797749978969640917366873127623544061835961152572427089..which continues on and on.

I hope this helped you understand this topic!

As indicated below, write the equations of the line passing through the point (2, 2) and perpendicular to the line whose equation is y = x. Complete your work in the space provided. Part 1: Point-Slope form of the linear equation Part 2: Slope-intercept form of the linear equation Part 3: The general form of the linear equation

Answers

Answer:

Step-by-step explanation:

y = x

Slope of line = 1

Slope of perpendicular to line = -1

Point-slope equation for line of slope -1 through (2,2):

y-2 = -(x-2)

Slope-intercept equation:

y = -x + 4

Standard form:

x+y = 4

help me pls i need help asap​

Answers

Answer:

no babe

Step-by-step explanation:

Decimal equivalent of 143%

Answers

Answer:

1.43 as a decimal

Step-by-step explanation:

%143 = 1.43

if your monthly salary is $2,543, what is your annual salary

Answers

multiply your monthly by 12
2543 x 12 = 30,516

Andy's little brother has a toy box that
contains 2 blue race cars, 1 green race car,
and 1 red race car. Andy removes 2 race cars
from the toy box without looking. If Andy
removes a blue car first and does not replace
it, which best represents the sample space
for the cars Andy removes?

Answers

Answer:

c.

Step-by-step explanation:

The solution is Option C.

Sample space is  set A = { blue , blue } , { blue , green } , { blue , red }

What is union and intersection of sets?

The union of two sets A and B is the set of all those elements which are either in A or in B, i.e. A ∪ B, whereas the intersection of two sets A and B is the set of all elements which are common. The intersection of these two sets is denoted by A ∩ B

The union of two sets is a new set that contains all of the elements that are in at least one of the two sets

The intersection of two sets is a new set that contains all of the elements that are in both sets

Given data ,

Let the sample space be represented as set A

Now , the equation will be

The number of blue cars = 2 blue cars

The number of green cars = 1 green car

The number of red cars = 1 red car

So , the total number of cars = 2 + 1 + 1 = 4 cars

Now , Andy removes 2 race cars from the toy box without looking

Let the first removed car be a blue car

So , the second car can have any value including a blue , green or white

And , the sample space is given by set A

Set A = { blue , blue } , { blue , green } , { blue , red }

Hence , the set is { blue , blue } , { blue , green } , { blue , red }

To learn more about sets click :

https://brainly.com/question/28278437

#SPJ2

Let R be the region bounded by the following curves. Use the shell method to find the volume of the solid generated when R is revolved about the x- axis.
y = Sqrt x , y = 0, and x = 81
V = ? (Type an exact answer in terms of pi)

Answers

Answer:

[tex]V=47239.2\pi [/tex]

Step-by-step explanation:

We are given that

[tex]y=\sqrt{x}[/tex]

y=0

[tex]x=81[/tex]

When y=0 then x=0

Using shell method

Volume of solid

[tex]V=2\pi \int_{a}^{b}xf(x)dx[/tex]

Using the formula

Volume of solid

[tex]V=2\pi \int_{0}^{81} x(\sqrt{x})dx[/tex]

[tex]V=2\pi \int_{0}^{81}x^{\frac{3}{2}}dx[/tex]

[tex]V=2\pi [\frac{2}{5}x^{\frac{5}{2}}]^{81}_{0}[/tex]

[tex]V=2\pi\times \frac{2}{5}((81)^{\frac{5}{2}})[/tex]

[tex]V=47239.2\pi [/tex]

an expression to show the sum of g and h reduced by 11

Answers

Answer:

(g + h) - 11

Step-by-step explanation:

Sum of g and h : g + h

Sum of g and h reduced by 11: (g + h) - 11

50 percent of blank is 30

Answers

60 hope it helps!!!!!!!!!

Answer:

50%of balnk is 30

the blank is 15 because

50x30/100 gives you what you don't have

so 50x30/100=15

The blank would be 15

Step-by-step explanation:

HELP PLSSSSSS!!! answer all pls

Answers

Answer:

See below.

Step-by-step explanation:

STEP 1:  If you write the given terms all with denominators of 16, they are 28/16, 25/16, 22/16, 19/16, __, ____, ____, 7/16, 4/16.

STEP 2: The terms decrease by 3/16 for each step.

RULE: Term 1 = 7/4 and term (n + 1) = term 'n' - 3/16

The operation for increasing by the same amount every step is addition.

The operation for decreasing by the same amount every step is subtraction.

STEP 3: The rule is that the terms decrease by 3/16 at each step.

So the next 3 terms after 19/16 will be 16/16, 13/16, and 10/16.

Reformat them and you have 1, 13/16, 5/8.

So now the completed sequence is 1&3/4, 1&9/16, 1&3/8, 1&3/16, 1, 13/16, 5/8, 7/16, 1/4.

SIGNIFICANCE OF OPERATION RESEARCH IN MODERN MANAGEMENT ​

Answers

What? Can you elaborate

Which statement completes step 6 of the proof?


Coordinate plane with line f at y equals 3 times x plus 1 and line g at y equals negative one third times x plus 1. Triangle JKL is at J negative 1 comma negative 2, K 0 comma 1, and L 0 comma negative 2. Triangle J prime K L prime is at J prime negative 3 comma 2, K 0 comma 1, and L prime negative 3 comma 1.



Step 1 segment KL is parallel to the y-axis, and segment JL is parallel to the x-axis.

Step 2 ΔJKL was rotated 90° clockwise to create ΔJ'KL'. Point K did not change position, so it remains point K. Therefore, ΔJKL ≅ ΔJ'KL'.

Step 3 segment K L prime is perpendicular to the y-axis, and segment J prime L prime is perpendicular to the x-axis.

Step 4 segment JK lies on line f and has a slope of 3.

Step 5 segment J prime K lies on line g and has a slope of negative one third.

Step 6 ?

A. The product of the slopes of segment JK and segment J prime K is −1; therefore, lines f and g are perpendicular.

B. The slopes of segment JK and segment J prime K are congruent; therefore, lines f and g are parallel.

C. The product of the slopes of segment KL and segment K L prime is −1; therefore, lines f and g are perpendicular.

D. The slopes of segment KL and segment K L prime are congruent; therefore, lines f and g are parallel.

Answers

Answer:

a) the product of slopes of segment jk and segment j prime k is -1 therefore line f and g are perpendicular

Answer:

The product of the slopes of segment JK and segment J prime K is −1; therefore, lines f and g are perpendicular.

Step-by-step explanation:

Just took the test and its correct!! :)

OMG PLS— THIS IS DUE AT 8PM—

Answers

Answer:

so good

Step-by-step explanation:

so good

give five equivalent fractions for 4/7​

Answers

Answer:

8/14, 12/21, 16/28, 20/35, 40/70

Step-by-step explanation:

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