WILL GIVE BRAINLIEST!! ABC is a triangle. Find the size of the largest angle in the triangle. Give your answer in degrees correct to 3 significant figures.

WILL GIVE BRAINLIEST!! ABC Is A Triangle. Find The Size Of The Largest Angle In The Triangle. Give Your

Answers

Answer 1

Answer:

98.2°

Step-by-step explanation:

The largest angle is opposite to the largest side.

Since the largest side is BC, the largest angle is A.

Work out the angle measure using the law of cosines:

cos ∠A = (b² + c² - a²)/(2bc)cos ∠A = (3² + 7² - 8²)/(2*3*7)cos ∠A = -0.14286m∠A = arccos (-0.14286)m∠A = 98.2°

Related Questions

Please help asap will mark brainliest!!!!

Answers

Answer:

2,600.00

Step-by-step explanation:

Use synthetic division to find the result when 3x^3-19x^2-12x-14 is divided by x−7.

Answers

Answer:

your look hard what grade you in

Step-by-step explanation:

Find the value of Y. Please help. Will give Brainlyest if your correct.

Answers

Answer:

Step-by-step explanation:

by intersecting chord theorem, 27*y = 13*17

y=13*17/27=8.185=8.19

expand -9(9-p)



...................................

Answers

Answer:

35

Step-by-step explanation:

Answer:

-81+9p

Step-by-step explanation:

-9(9-p)

-9×9-9×-p

-81-9×-p

-81-(-9p)

-81+9p

9p-81

Solve for X

show me what steps to do for this one​

Answers

Answer:

x = 24

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

120° is an exterior angle of the triangle, then

2x + 3x = 120

5x = 120 ( divide both sides by 5 )

x = 24

Answer:

here ig ..this is all

Step-by-step explanation:

sry if I got wrong

stay safe ...

pls help omg i will give brainliest

Answers

Answer:

The actual height of 1 story is 15 feet.

Step-by-step explanation:

The given scale is

2 inches = 25 ft

We know the 10 story building has a height of 12 inches, but we need the actual height of 1, that is, the height of 1 story in feet.

Let's divide to find the number of inches per story

There are 1.2 inches per story.

Now, we know , let's use the rule of three

Therefore, the actual height of 1 story is 15 feet.

Answer:

15 ft

Step-by-step explanation:

2 inches  = 25 ft

12 inches = x ft

2 x 6 = 12

25 x 6 = 150

150 ft = 10 stories

150/10 = 15

Each story = 15ft

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

please help i’ll give brainliest

Answers

Answer:

Step-by-step explanation:

The answers are 1, 3, and 4 hundred percent sure it is correct

Solve for x.
9 km
12 km
X

Answers

Answer:

15km

Step-by-step explanation:

[tex] \rm \mapsto \: {9}^{2} + {12}^{2} = {x}^{2} \\ \rm \mapsto \: {x}^{2} = 81 + 144 \\ \rm \mapsto \: {x }^{2} = 225 \\ \rm \mapsto \: x = \sqrt{225} \\ \rm \mapsto \: x = 15[/tex]

What is the slope of the line?
-4x + 7 = 2y - 3
Choose 1 answer

Answers

The answer is C which is -2

HELP ASAP ! WORK A LOT POINTS!

Answers

Answer:

y=2x-8

Step-by-step explanation:

Write a number using the following clues:

a multiple of 4
greater than 30 but less than 100

Answers

Answer:

Theres a lot of numbers you can choose from 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96,

Step-by-step explanation:

It would be 40 since 10 x 4 = 40, 40 is a multiple of 4, greater than 30 and less than 100.

Rewrite the expression as a single logarithm:
log 80 - 3 log 2

Answers

The answer to this question is 1... solving it to the latter part log10 base 10 is one... log(80)- log(2)^4 log (80/8) log(10) which is 1. So the previous solution is just an example... the correct answer is 1

If the expression above is rewritten in the form a+bi, where a and b are real numbers, what is the value of a? ​

Answers

Answer:

......................................,........

30 pts pls awnser all questions i give BRAINLIEST help meee

Answers

10; decreases

8: decreases, increases

7: increases, stays the same, increases, stays the same, increases.

9: increases, increases

I hope that this is correct and was able to help

Keisha's teacher gives her the following information:
• m, n, p, and q are all integers and p = 0 and q +0
• A= and B=;
What conclusion can Keisha make?

Answers

i think it is b sorry if i am wrong

Answer: b

Step-by-step explanation: b

PLZZZ HELP ASAP LAST ONE TYSM

Answers

Answer:

answer: 31.4

Step-by-step explanation:

the formula to finding circumference is just diameter × pi we arent given the diameter so we have to figure it out but what we do know is the radius is half of the diameter so 5 x 2 = 10 so now that we have the diameter we just multiply by pi so 10 × 3.14 = 31.4 Hope this helps!

Answer:

10 π m

Step-by-step explanation:

Given,

Radius ( circle ) = 5 m

To find : Circumference ( circle ) = ?

Formula : -

Circumference ( circle ) = 2πr

Circumference ( circle )

= 2 x π x 5

= 10 π m

Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-2, 2)A(−2,2)A, left parenthesis, minus, 2, comma, 2, right parenthesis, B(6, 2)B(6,2)B, left parenthesis, 6, comma, 2, right parenthesis, C(6, 3)C(6,3)C, left parenthesis, 6, comma, 3, right parenthesis, and D(-2, 3)D(−2,3)D, left parenthesis, minus, 2, comma, 3, right parenthesis.
What is the area of rectangle ABCDABCDA, B, C, D? Please Help

Answers

Answer:

Step-by-step explanation:

The rectangle ABCD has vertices A(-2,2), B(6,2), C(6,3) and D(-2,3).

Now, length of side AB = [6 - (- 2)] = 8 units.

{Since the line AB is parallel to the x-axis, so the length of the segment AB will be the difference between the x-coordinates of the points A and B}

Again, line BC is parallel to y-axis and hence the length BC = (3 - 2) = 1 units.

Therefore, the area of the rectangle ABCD will be (8 × 1) = 8 sq. units. (Answer)

Answer:

8 Square Units

Step-by-step explanation:

An airplane flies 285 miles in 5 hours. What is its average speed in miles per hour?
PLEASE HELP ASAP!!!!!!​

Answers

Answer:

57

Step-by-step explanation:

Speed = Distance / Time

distance = 285

time = 5 hours

285/5 = 57

can someone please help me and write out the answer​

Answers

Answer:

73.3

Step-by-step explanation:

Answer:

Step-by-step explanation:

39 + 90 + x = 180

129 + x = 180

x = 51

help plz 30 points and brainliest! <3

Answers

23x3 is 69

219x6 is 1314

840x 3 2520
23 x 3 = 69
219 x 6 = 1314
840 x 3 = 2520
200 x 6 = 1200
5319 x 4 = 21276
7043 x 8 = 56344
4909 x 6 = 29454
8000 x 3 = 24000
70 x 20 = 1400
53 x 60 = 3180
76 x 32= 2432
41 x 27 = 1107
52 x 28 = 1456
79 x 58 = 4582
94 x 78 = 7332

plz help, photo above

Answers

Answer:

D

Step-by-step explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

D hope this helps you

Durning the summer , a shoe store sells sneakers and sandals at a ratio of 4:7 . If the store sells 164 pair of sneakers, how many pair of sneakers and sandals does the store sell in all ?

Answers

Answer:

x = number of pairs of sandals sold = 287

Total pair of sneakers and sandals sold = 451 pairs

Step-by-step explanation:

Sneakers = 4

Sandals = 7

Sneakers : sandals = 4 : 7

If the store sells 164 pair of sneakers

Let

x = number of pairs of sandals sold

Sneakers : sandals = 164 : x

Equate both ratios to find x

4 : 7 = 164 : x

4/7 = 164/x

4 * x = 7 * 164

4x = 1,148

x = 1,148/4

x = 287

x = number of pairs of sandals sold = 287

how many pair of sneakers and sandals does the store sell in all ?

Total pair of sneakers and sandals sold = Sneakers + sandals

= 164 + 287

= 451 pairs

Total pair of sneakers and sandals sold = 451 pairs

Right triangle A B C. Side A C is 10 meters, side B C is 20 meters, and hypotenuse A B is blank.
Find the area of the triangle.
a.
620 sq. m
c.
100 sq. m
b.
200 sq. m
d.
180 sq.m

Answers

Answer:

C)  100 sq. meters

Step-by-step explanation:

Find an equivalent ratio in simplest terms: 15 : 27​

Answers

15/27 = .55555555556 repeated
When u convert it into a fracture, the simplified version would be 5/9

Answer: 5/9

1st answer gets brainliest!!!
The surface area of this regular pyramid is 1040 cm2. The base is a regular pentagon with side b = 16 cm and slant height l =15 cm. Find its apothem (a).
PLEASE show work :))

Answers

The apothem of this is 13

The length of a rectangle is 4 cm more than 3 times its width. If the area of the rectangle is 15 cm², find the width.

Answers

Answer:88888888

Step-by-step explanation:

Two angles form a linear pair. The measure of one angle is z and the measure of the other angle is 2.4 times z plus 10∘ 10 ∘ . Find the measure of the smallest and biggest angle

Answers

Given:

Two angles form a linear pair.

The measure of one angle is z and the measure of the other angle is 2.4 times z plus 10°.

To find:

The measure of the smallest and biggest angle.

Solution:

Two angles form a linear pair. The measure of one angle is z.

The measure of the other angle is 2.4 times z plus 10°, i.e., [tex]2.4z+10^\circ[/tex].

We know that if two angles form a linear pair then their sum is 180 degrees.

[tex]z+(2.4z+10^\circ)=180^\circ[/tex]

[tex]3.4z=180^\circ -10^\circ[/tex]

[tex]3.4z=170^\circ[/tex]

Divide both sides by 3.4.

[tex]z=\dfrac{170^\circ}{3.4}[/tex]

[tex]z=50^\circ[/tex]

Now, the measure of other angle is:

[tex]2.4z+10^\circ =2.4(50^\circ)+10^\circ[/tex]

[tex]2.4z+10^\circ =120^\circ+10^\circ[/tex]

[tex]2.4z+10^\circ =130^\circ[/tex]

Therefore, the measure of the smaller angle is [tex]50^\circ[/tex] and the measure of the bigger angle is [tex]130^\circ[/tex].

The 15th term of an arithmetic sequence is 21 and the common difference is -4.
(a) Find the first term of the sequence.
(b) Find the 29th term of the sequence.
(c) Find the sum of the first 40 terms of the sequence.

Answers

Answer:

a. Firat term of the sequence= 77

b. 29th term of the sequence= -35

c. Sum of the first 40 terms of the sequence= -40

Step-by-step explanation:

The first term of the sequence is 77, the 29th term of the sequence is -35 and the sum of the first 40 terms of the sequence is -40.

Given that, [tex]a_{15} =21[/tex] and d=-4.

What is the nth term of the arithmetic sequence?

The nth term of the arithmetic sequence is [tex]a_{n} =a+(n-1)d[/tex].

To find the first term of the sequence:

[tex]a_{15}[/tex]=a+(15-1)(-4)

⇒21=a+(15-1)(-4)

⇒a=77

To find the 29th term of the sequence:

[tex]a_{29}[/tex]=77+(29-1)(-4)=-35

To find the sum of the first 40 terms of the sequence:

The first n terms of a sequence [tex]=\frac{n}{2}[2a+(n-1)d)][/tex]

[tex]S_{40} =\frac{40}{2}[2 \times77+(40-1)(-4))][/tex]

=20(154-156)=-40

Therefore, the first term of the sequence is 77, the 29th term of the sequence is -35 and the sum of the first 40 terms of the sequence is -40.

To learn more about the arithmetic sequence visit:

https://brainly.com/question/15412619.

#SPJ2

If two points known on the line AB in the coordinate plane is (7,15) and (18,42), calculate the following..

A) the slope of the line AB

B) The length of the line AB

Answers

Answer:

Slope = 27/11AB = 29.15 u

Step-by-step explanation:

Given :-

Two points are given to us .The points are A(7,15) and B(18,42)

To Find :-

The slope of the line .The length of line AB .

We can find the slope of the line passing through the points [tex]( x_1,y_1)[/tex] and [tex]( x_2,y_2)[/tex]as ,

[tex]\implies m = \dfrac{ y_2-y_1}{x_2-x_{1}}[/tex]

Plug in the respective values ,

[tex]\implies m = \dfrac{ 42-15}{18-7} \\\\\implies \boxed{ m = \dfrac{ 27}{11 }}[/tex]

Hence the slope of the line is 27/11 .

[tex]\rule{200}2[/tex]

Finding the length of AB :-

We can find the distance between them by using the Distance Formula .

[tex]\implies Distance =\sqrt{ (x_2-x_1)^2+(y_2-y_1)^2} \\\\\implies Distance =\sqrt{ (18-7)^2+(42-15)^2 } \\\\\implies Distance =\sqrt{ 11^2 + 27^2 } \\\\\implies Distance =\sqrt{ 121 + 729 } \\\\\implies Distance = \sqrt{ 850} \\\\\implies \boxed{ Distance = 29.15 \ units }[/tex]

Hence the length of AB is 29.15 units .

-4(-8x + 12y)
Distribute

Answers

Answer:

-32x-48y

Step-by-step explanation:

multiply: -4 (8x) - 4 (12y) = -32x-48y

Answer:

32x - 48y

Step-by-step explanation:

when you distribute, -4 has to go to both -8x and 12y  

so -4 times -8x = 32x

-4 times 12 = -48y

Final answer: 32x - 48y

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