Mathematics High School

12 can someone please explain this

12 Can Someone Please Explain This

Answers

Answer 1

Answer:

B = x = 44 degrees

Step-by-step explanation:

Interior angles of a triangle = 180 degrees.

There are 2 congruent sides so the angle to the right of 67 degrees is also 67 degrees

180 - 2(67) = 46 degrees (the third angle of the triangle)

x + 46 degrees = 90 degrees ( complementary angles)

x = 44 degrees

Related Questions

ILL GIVE BRAINILEST TO WHEVER ANSWERS

Answers

4(4x-4)+x+4=-46
First you distribute.
16x-16+x+4=-46
Then combine like terms.
17x-12=-46
-12 -12
17x= -58

The final answer is -58/17 or -3.412

which company offers the best deal?why?​

Answers

Answer:

where question？

Step-by-step explanation:

i dont know the question it cant be solve

Answer:

I don't see the question. it cannot be solved

lim x tends to a {x^7-a^7/x^3-a^3]

Answers

Answer:

thank you very much

1235÷722

Solve this equation: -7.2 + 12 - 2.c
23 + 13x
Step 3: Isolate the variable term on one side of the equation by both sides of the equation

Answers

Answer:

4.8-46c+13x

Step-by-step explanation:

1.2k + 2.4, factor out the coefficient of the variable, explain how you got it pls

Answers

The variable is k, the coefficient of the variable (k) is 1.2 so we factor out 1.2
And that gives us 1.2(k+2)

i Square = Square Root -1. True or false

Answers

Answering is false I know because I’m smart

The sum of 8th term of an A.P is 160 while to sum of the 20th term is 880. Find the 43rd term​

Answers

Let a and d be the first term and common difference, respectively. Then

the 8th term is a+7d
the 20th term is a+19d

The sum of the first 8 terms is
(a)+(a+d)+(a+2d)+...+(a+7d) = 8a+28d

The sum of the first 20 terms is
(a)+(a+d)+(a+2d)+...+(a+19d) = 20a+190d

So

8a + 28d = 160
20a+ 190d = 880

40a + 140d = 800
40a + 380d = 1760
240d = 960
d = 4

8a + 112 = 160
8a=48
a =
6

The first term is 6 and the common difference is 4.

The 43rd term is a+42d = 6+42(4) = 6+168 = 174

The sum of the first 12 terms is
(a)+(a+d)+(a+2d)+...+(a+11d) = 12a+66d = 12(6)+66(4) = 72+264 = 336

The value of the 43rd term of the arithmetic sequence will be 482.

What is the sum of an arithmetic sequence?

Let a be the first term, L be the last term, n be the number of terms, and d be a common difference.

Then the sum of the arithmetic sequence will be

Sₙ = (n / 2)[a + L]

Sₙ = (n/2) [2a + (n − 1) d]

An A.P.'s eighth term is worth 160 while their twentieth term is worth 880.

160 = (8/2)(2a + 7d)

2a + 7d = 40                        ...1

880 = (20/2)(2a + 19d)

2a + 19d = 88                       ...2

From equations 1 and 2,

40 - 7d + 19d = 88

12d = 48

d = 4

Then the value of 'a' is given as,

2a + 7(12) = 40

2a = 40 - 84

2a = -44

a = -22

The value of the 43rd term is given as,

aₙ = a + (n - 1)d

a₄₃ = - 22 + (43 - 1)(12)

a₄₃ = - 22 + 42 x 12

a₄₃ = - 22 + 504

a₄₃ = 482

More about the sum of arithmetic sequence link is given below.

https://brainly.com/question/25749583

#SPJ5

What is the sum to 5(−3.4k−7)+(3k+21)

Answers

Your answer is: -14k-14

Step-by-step explanation:

5(-3.4k-7)+(3k+21)

_17k-35+3k+21

-14k-35+21

-14k-14

Answer:

5(-3.4k-7)+(3k+21)

_17k-35+3k+21

-14k-35+21

-14k-14

Your answer is: -14k-14

A ship starts at sea level and then descends 20 feet in 4 1/2 minutes. How many feet did it descend per minute?
How many feet would it descend in 8 minutes?

Answers

Answer:

1. 4 1/2 can be converted into 4.30 / 20 = 0.125f per minute

2. it would descend 4.64 or 5f rounded in 8 minutes (8/0.125)

Answer:

4.45 feet p/m

35.56 feet per 8 minutes

Step-by-step explanation:

20 / (60x4.5) = 60 seconds  = ( 1 x 4.5 minutes)

20/270=0.0740740741 1 = multiplier of feet/seconds

60 x 0.0740740741 1 =4.44444445 feet in one minute = 4.45feet

60 x 8 = 480 seconds   (1 x 8 minutes)

480 x 0.0740740741 1 =35.5555556 feet

= 35.56feet in 8 minutes

I NEED HELPPP WHEN THESE!!! please can someone help

Answers

Answer:

a: 36

b: 10

c: 3.2

d: a

Step-by-step explanation:

Answer:

A = 36

B = 10

C = 3.2

D = a

Step-by-step explanation:

The square roots and power of 2s zero each other out.

what is 0.25+1/8+24+60=

Answers

Answer:

84.375 or 675/8

Step-by-step explanation:

6.478×18.21 Multiply the equation

Answers

Answer:

117.96438

Step-by-step explanation:

6.478 x 18.21 = 117.96438

Answer: I believe it is 117.96

Step-by-step explanation:

6.478×18.21 = 117.96438 but there can only be two numbers after the decimal so you go to the third number after the decimal and round if it is lower than five the second number after the decimal stays the same if it is above five it will round the second number after the decimal up one in this case it will stay the same so the answer is 117.96

Jonah had $340.87 in his checking account. He withdrew $52 and wrote a check for $18.72. Find the new balance.

Answers

Answer:

270.15

Step-by-step explanation:

Answer:

270.15

Step-by-step explanation:

u just add 52 and 18.72 and subtract it from 340.87

Anyone know how to solve this? Pease show how you got the answer:)

Suppose you used one quarter of a sheet of paper for each ad and four full sheets for the title banner in Problem 2. How many ads could you make?

- 56 ads
-48 ads
-64 ads
-12 ads

Answers

- 56 ads jajjajahahahahajha

Find the difference
a. 41- 275
b. -15 - 47
c. -72 - (-151)
d. 612 - (-144)

Answers

Answer:

41-275=234

15-47=62

-72-{151}=223

612-144=174

Step-by-step explanation:

The cost of printing different numbers of copies of a book is shown on the graph below.

Which equation represents the cost ,C, of printing n copies of the book?

Answers

Answer:B

Step-by-step explanation:200 times 2 is 400

−1.2x+2.5=0.8x+6.5

Solve for x

Answers

Answer:

x = -2

Step-by-step explanation:

It's a matter of rearranging the equation to make x the subject. Simple arithmetic.

Original equation:

-1.2x + 2.5 = 0.8x + 6.5

Start moving constants with variables to left, and constants without variables to right:

-1.2x - 0.8x + 2.5 = 6.5

-1.2x - 0.8x = 6.5 - 2.5

Collect like terms

-2x = 6.5 - 2.5

-2x = 4

Divide both sides by -2 to make x the subject

x = 4/-2

x = -2

Answer: x = - 2.0

Step-by-step explanation:

We can find x by making it the subject of the equation and simplifying:

   

     −1.2x+2.5=0.8x+6.5      [group like terms across the equal sign]

      -1.2x - 0.8x = 6.5 - 2.5     [simplify]

              - 2.0x = 4                 [divide both sides by -2.0]

                     x = -2.0

Check:

 −1.2(-2.0)+2.5  =  0.8(-2.0)+6.5

                4.9   =   4.9 ✅

HELP PLEASE 10 POINTS

Answers

Answer:no idea

Step-by-step explanation:

Given the overlapping triangles shown at the right. Notice the parallel segments. Find x. 6 х 9 MathBils.com 20​

Answers

Using the principle of parallel lines, the value of x in the given triangle is calculated to be 8

The smaller triangle can be expressed as :

Side / base = 6/x ----(1)

The larger triangle can be expressed as :

Side / base Side = 6+9 = 15 15/20 - - - - - (2)

Equating (1) and (2) :

6/x = 15 / 20

15x = 20 × 6

15x = 120

x = 120 / 15

x = 8

Therefore, the value of x in the triangle is 8.

Learn more : https://brainly.com/question/25326255

Select ratios that are equivalent to the following: *
18:54

Answers

Answer:

Equivalent ratios follow:

9:27

3:9

1:3

5:15

2:6

9) List the numbers in order from least to greatest.
square root of 5, 2.5, 2 1/3 , square root of 8

Answers

Square root of 5, 2 1/3, 2.5, square rot of 8

Please Help!!!!!!!!!!!!!!

Answers

The streetlight is 3x taller. The larger triangle's base is 30ft. 30 divided by 10 is 3. So the streetlight's height is 3 times 6 which is 18. Which also means the streetlight is 3x taller than the person.

<5 , <3 , <2, or <4 ? ^^

Answers

Answer and Step-by-step explanation:

To figure out the problem, we first need to know what supplementary means. In this question, supplementary (angles) is when two angles are next to each other, and when added together, they add up to 180 degrees.

By looking at the image, we see that angle 1 is next to angles 2 and 5.

Angles 1 and 2 don't look like they will add up to 180 degrees.

Angles 1 and 5 look like they will add up to 180 degrees.

A way to find supplementary angles is by looking at lines that go straight across, with a line intersecting the middle of the line to form the supplementary angles.

#teamtrees #PAW (Plant And Water)

I hope this helps

8. The month of July has 31 days. What is the greatest
possible number of Saturdays that can occur in July?
+

Answers

Answer:

We know that one Saturday comes in a week there are 7 days in a week and there are 4 weeks in a month so in 7×4=28 days four Saturdays will come ,

But since July has 31 days so there is a possibility of 5 Saturdays as in the rest 2 days one can be Saturday. so theres a possibility of 5 Saturdays

what is the unit rate of 588 and 12

Answers

Answer:

49

Step-by-step explanation:

588  divided by 12                        49

___                                  =           -------          

12    divided by 12                           1

Hope this helped, click thanks if it did

Please help me in this:

Answers

Answer:

;sjjdje

Step-by-step explanation:

4djdeje

1 4/5 x 7 1/5 help mee

Answers

Answer:     355/70? correct me if im wrong :-)

Step-by-step explanation:

Evaluate for b

50 = -1/3b + 20

Answers

Answer:

b= -90

Step-by-step explanation:

30= -1/3b

multiply by negative 3 on both sides to make -1/3 into 1.

-90 = b

Answer:

Solve the rational equation by combining expressions and isolating the variable bb.

Exact Form:

b= -1/90

Determine the relationship between the two triangles and whether or not they can be proven to be congruent

Answers

9514 1404 393

Answer:

  the triangles are congruent

Step-by-step explanation:

The side marked congruent is between the angles marked congruent, so the triangles are congruent by the ASA congruence postulate.

Can someone help me with number 8?

Answers

Answer:  18.55 ft/s

Step-by-step explanation:

Rate of change = change in distance ÷ change in time

                          =  (3126 ft - 1735 ft) ÷ (120 s - 45 s)

                         = 1391 ft ÷ 75 s

                         ≈ 18.55 ft/s

∴ the rate of change is 18.55 ft/s.
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