Mathematics High School

Calculate value of x
A=24.9
B=19.1
C=10.3
D=12.3

Answers

Answer 1

Answer:

C. 10.3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Trigonometry

[Right Triangle Only] cos∅ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use Trig Rations to solve for the missing side

Step 2: Identify Variables

Adjacent leg = x

Hypotenuse = 16

Angle ∅ = 50°

Step 3: Solve for x

Set up equation: cos50° = x/16Isolate x: 16cos50° = xEvaluate: 10.2846 = xRewrite: x = 10.2846

Related Questions

Solve for y: 11−9y=−6y+8

Answers

-9y+11= -6y+8
-9y+11-11=-6y+8-11
-9y=-6y-3
-9y+6y=-6y-3+6y
-3y=-3
Answer: y=1

الزاوية في الوضع القياسي التي تكون الزاوية °82 زاوية مرجعية لها هي :
a) 275°
b) 98°
C) 262°

Answers

Step-by-step explanation:

340 046 9411Collect the contact numbers of the potential customers (could be friends or relatives initially). Create a whats app broadcast list and send them the new products or offers with image to them regularly.

One more thing that helps is advertisement banners on public places such as bus depot, railway stations, etc…

Last but not the list. A COOL customer experience to the customers even though they do not buy anything.

Hope these helps. There are many other important factors as well. You can ask any time for any help in this. Would be glad to help. :)

Answer:

Step-by-step explanation:

What is the slope of a line which makes an angle of 45 degree with x-axis? *

Answers

Answer:

First we have to find slope m=Tan45°=1

so slope is 1.

Answer:

slope = 1

Step-by-step explanation:

The relationship between slope and the positive angle it makes with the x- axis is

slope = tanθ ( θ is the angle measured from the x- axis ), then

slope = tan45° = 1

Answer The Question Below:

Answers

Answer:68600m

Step-by-step explanation:98 meters to cm is 9800 then times it by 7 you get 68600

68700 I think is the answer

the graph shows a proportional relationship. what is the constant proportionality?

Answers

Answer:

Step-by-step explanation:

21 is the constant of proportionality.

If Z is the centroid of triangle TUV, TZ=60, XZ=28, and WZ=25, find each missing measure

Answers

The measure of length ZV, ZY, ZU, TY, and XV are 56, 30, 50, 60, and 78.

If Z is the centroid of triangle TUV, then the following are true:

ZV = 2ZX

Given that ZX = 28,

ZV = 2(28)

ZV = 56

Similarly, TZ = 2ZY

60 = 2ZY

ZY = 60/2

ZY = 30

Also, ZU = 2WZ

ZU = 2(25)

ZU = 50

TY = 2ZY

TY = 2(30)

TY = 60

XV = XZ + ZY

XV = 28 + 50

XV = 78

Therefore the measure of length ZV, ZY, ZU, TY, and XV are 56, 30, 50, 60, and 78.

Learn more on centroid here: https://brainly.com/question/25845737

I NEED HELP ASAP!!!!!

What is the distance (length) of side LM?

Answers

Answer:

Distance, d = √((x2 - x1)² + (y2 - y1)²)

L(x1, y1) => L(-3, -1)

M(x2, y2) => M(2, 3)

Distance LM = √((2 - -3)² + (3 - -1)²)

= √((2 + 3)² + (3 + 1)²)

= √((5)² + (4)²)

= √(25 + 16)

= √ 41

= 6.4 unit

HELP IM BEING TIMED!!!!!

Answers

Answer:

Step-by-step explanation:

Rad10 times rad10 equals rad100 which is simplified to 10

Answer:

A: 10

Step-by-step explanation:

√10 × √10

= 10

1/sin30 - √3/cos10 =4 prove it?

Answers

Step-by-step explanation:

1/sin10-√3/cos10

= (cos10 - √3sin10)/cos10sin10

multiplying 1/2 in denominator and numerator

= {(cos10/2) - (√3sin10/2)}/(cos10sin10/2)

= (cos60cos10 - sin60sin10)/(cos10sin10/2)

= cos(60 + 10)/(cos10sin10/2)

= cos70/(cos10sin10/2)

= 2cos70/cos10sin10

multiplying 2 on numerator and denominator

= 4cos70/2sin10cos10

=4cos70/sin20

=4cos70/cos70

= 4 proved

If the equation of a line is y = - 5x + 3, which is true?

A) Slope is 3, Y-Intercept is -5

B) Slope is -5 , Y- Intercept is 0

C) Slope is -5, Y-Intercept is 3

D) Slope is 5, Y-Intercept is -3

PLS ANSWER 64 POINTS (64 POINTS AND ILL MARK BRAINIEST) PLS...

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

So the formula for slope is y = mx + b

Here is what it looks like so far: y = -5x + 3

In that equation, -5 is m (slope)

and 3 is b (y-intercept)

So the answer is C

Question 15
If you have these three lengths 6cm,7cm,6cm can they make a Triangle?
O True
False

Answers

Answer:

the answer is yes

since there is there sides that's what shows in a triangle

Number of digits in base 5 number system are

Answers

Answer:

5 digits (from 0 to 4)

Step-by-step explanation:

Well the numbers that you can use to make a number are

[tex]0\\\\1\\\\2\\\\3\\\\4[/tex]

well there are 5 digits

Answer:

Step-by-step explanation:

please help!!!! its math I will give you more points if you answer correctly and brainly
The equations of four lines are given. Identify which lines are perpendicular.

Line 1: y+8x=−5

Line 2: x+1/6y=−5

Line 3: y=−6x−7

Line 4: y+3=1/8(x−1)

Lines 2 and 3 are perpendicular.
Lines 1 and 2 are perpendicular.
All four lines are perpendicular.
Lines 1 and 4 are perpendicular.

Answers

Answer:

All four lines are perpendicular

Step-by-step explanation:

Lines 1 and 2 are parallel

y+8x=−5;x+1/6y=−5

Lines 2 and 3 are parallel

x+1/6y=−5;y=−6x−7

Lines 1 and 4 are perpendicular they intercept

x+1/6y=−5;y+3=1/8(x−1)

All four lines are perpendicular

line 4 is perpendicular to all other lines

Which tool could be used to model wave motion during a scientific investigation?

A: beam balance
B: mirror
C: prism
D: slinky spring

Answers

Answer:

D: slinky spring

Step-by-step explanation:

WILL MARK BRAINLIEST

Divide an exponential and cubic function.

Answers

Answer:

where's the question

Step-by-step explanation:

Where’s the problem at and question???

Given that f ( x ) = 3 x − 2 and g ( x ) = 2 x , evaluate f ( g ( − 1 ) )

Answers

g(x) = 2x

9(-1) = -2

f(x) = 3x-2

f(g(-1)) = f(-2) = 3*(-2) - 2 = -8

Answer:

-8

Step-by-step explanation:

g(-1)= 2 * -1 = -2

So f(g(-1)) will be f(-2)

F(-2) = (3 * -2) - 2

= -6 - 2

= -8

What is 24% of 100

PLEASEEEE HELP I WILL GIVE BRAINLY POINTS!!!!!!!!!!!!!!!!!

Answers

24 is going to be the answer

Answer:

24% of a hundred is 24

Step-by-step explanation:

use fractions to help you solve this.

is 19 equal to 4.358

Answers

Answer:

Step-by-step explanation:

19=19 and 4.358=4.358

Use a graph to find x and y values that make both
y = x + 3 and y = 2x – 5 true.
YA
6
5 4
NW
-8 7 6 5 4 3 -2 -10
NE
4
6 7 8 x
-2
-3
The x-value is
The y-value is
The solution is

Answers

Step-by-step explanation:

The given equations are :

y = x + 3 .....(1)

y = 2x – 5 ......(2)

The table for equation (1) is :

x = 0, 1, 2, 8

y = 3, 4, 5, 11

The table for equation (2) is :

x = 0, 1 , 2, 8

y = -5, -3, -1, 11

From the graph we can see that,

The x-value is = 8

The y-value = 11

The solution is = (8,11).

The x-value is = 8, the y-value = 11 and the solution is = (8,11)

How to determine the equation solutions?

The equations are given as:

y = x + 3

y = 2x - 5

Next, we plot the graph of the equations

From the graph of the equations, we have:

(x,y) = (8, 11)

Hence, the x-value is = 8 and the y-value = 11

So, the solution is = (8,11)

Read more about graphed equations at:

https://brainly.com/question/14323743

please help with questions. This is geometry btw

Answers

Answer:

I'm pretty sure it's true.

Step-by-step explanation:

Help me pls !!!!!!!!!’n

Answers

Answer:

x=-31/4

Step-by-step explanation:

Cross multiply and bring 3 to the opposite side.

3(3x+8) =5x-7

9x+24=5x-7

Bring all the x to one side and the numbers to the other

9x-5x=-7-24

4x=-31

x=-31/4

PLS HELP ASAP I DONT HAVE TIME AND IT ALSO DETECTS IF ITS RIGHT OR WRONG

Answers

Yeah its b they’re right

estimate √9.7+3.88×6.21

Answers

9514 1404 393

Answer:

a little more than 27

Step-by-step explanation:

Estimates are generally made by approximating the numbers using 1 or 2 significant digits. The idea is to do as much mental arithmetic as possible, not involving a calculator. Here, the estimate can be based on rounding the values like this:

√9.7 +3.88 × 6.21 ≈ √9 +4 × 6 = 3 +24 = 27 . . . estimated expression value

Another aspect of estimating is determining the approximate error involved.

We know that √9.7 will be more than √9 = 3, and less than √10 ≈ 3.16*. Its real value may be about 3.1.

3.88 is less than 4 by 0.12, or 3%. 6.21 is greater than 6 by .21, or 3.5%. So, the estimated product of 24 will be on the order of -3% +3.5% = 0.5% too low. Of course 1% of 24 is 0.24, so 1/2% will be about 0.12. Now, we are able to estimate that our estimate is about 0.2 units too low. (The actual value of the expression is an irrational number that rounds to about 27.2093.)

_____

* The value of 3.16 for √10 is not so hard to remember, because it is just slightly more than π ≈ 3.14.

Additional comment

Small percentages can usually be added and subtracted without introducing too much additional error. (The smaller the percentages, the less additional error is introduced.) Here, the error in our estimated product can be more accurately determined by computing ...

(1 -3%)(1 +3.5%) = 1 +0.5% -0.105% = 1 +0.395% . . . . . . (not 1 +0.5%)

That is, our product's actual value is 24.0948, not 24.12.

A cleaning crew always uses a 10% disinfectant solution on very delicate surfaces. But today the crew only has a 50% disinfection solution. If the crew needs 25 liters of 10% solution how many liters of water and how many liters of the 50% disinfectant should they mix?

Answers

Answer: 50 percent solution because you will have to multiply the 10 percent by 5.

Step-by-step explanation:

Factorise x³+7x²-2x-14

Answers

Answer:

(x+7)(x^2+2)

Step-by-step explanation:

Jada and Lin are comparing inches and feet. Jada says that the constant of proportionality is 12. Lin says it is 1/12 Do you agree with either of them? Explain your reasoning.

Answers

Answer: Look up your exact question

Step-by-step explanation: The question you've asked has also been asked by another person on brainly, you could look at their answer. Link: https://brainly.com/question/11191408

In Ms. Monroe's 2nd Period class, 5 students made an A
and 6 students made a B on the last quiz in math class
out of a total of 32 students.
What percent of students made an A or B combined?
(ROUND TO THE NEAREST WHOLE PERCENT)
Y

Answers

Answer:

yes

Step-by-step explanation: yes

If she has 32 total students that’s the denominator, then you have to add the 5 A’s with the 6 B’s to get 11. You then get an 11/32. That cannot be reduced, so 11/32 if your final answer !

pls help me with these.....pls its urgent..... the right one will get brainliest.....

Answers

Answer: 8. 1.2 × 10⁻⁶ 1.2 × 10⁻³ 1.2 × 10³ 1.2 × 10⁵ 1.2 × 10⁶

9a. 6.85 × 10⁻⁷ m 0.00000052 m 4.6 × 10⁻⁷ m

9b. BGYR shortest to greatest

10. 6 × 10⁵ 3 × 10³

11a. 10⁻⁷

11 b i. 8 × 10⁻⁷

11 b ii. 0.0000008

Step-by-step explanation: 8: the image is a bit out of focus, so it's hard to tell what all the exponents are. Just remember that for negative exponents, the larger the number, the smaller the value.

9. Following the examples given, the exponent tells how many places to count from right to left to move the decimal from standard form to wavelength and vice-versa.

9b. Just put the numbers from standard form in order and find the corresponding color.

10. For multiplication, multiply the numbers to the left of the × and add the exponents of the 10. For division, Divide the numbers on the left and subtract the exponents of 10.

11a add the powers. Just like the first part of #10

11b same procedure as #10 (The more you practice, the more likely you will remember)

The total number of decimal places in the factors will be the number of decimal places in the product. 0.002 has 3 decimal places. 0.0004 has 4 decimal places. Total of 7. SO "0" decimal . then six 0's then the multiplied number 8 in 7th place.

The picture above shows the question.

Answers

Answer:

angle one is 62 degrees

Step-by-step explanation:

3x+2+5x+18=180

x=20

5*20+18=118

180-118=62

Pls help with both...........

Answers

Answer:

1000

512 is ans ...............

A) 10 X 10 X 10 X 10 = 10000

B) 8 X 8 X 8 = 512

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Calculate value of x A=24.9 B=19.1 C=10.3 D=12.3

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Calculate value of x
A=24.9
B=19.1
C=10.3
D=12.3