Mathematics High School

find x.
please i need help!!

Find X. Please I Need Help!!

Answers

Answer 1

Step-by-step explanation:

sin45°=x/4√2

=> 1/√2 = x/4√2

=> x= 4√2/√2

=>x= 4.

hope this helps you.

Answer 2

The question is an illustration of right-angled triangles

The value of x is (b) 4

To calculate the value of x, we make use of the following sine ratio

[tex]\sin(45) = \frac{x}{4\sqrt 2}[/tex]

Multiply both sides of the equation by [tex]4\sqrt 2[/tex], to make x the subject of the formula

[tex]x = \sin(45) \times 4\sqrt 2[/tex]

Evaluate sin(45)

[tex]x = \frac{1}{\sqrt 2} \times 4\sqrt 2[/tex]

Cancel out the common factors

[tex]x = 4[/tex]

Hence, the value of x is (b) 4

Read more about right-angled triangles at:

https://brainly.com/question/16195823

Related Questions

plss help ill give brainlest

Answers

The length of the truck could explain how many wheels trucks have

Lyndon got a new job which pays $24.25 per hour. He works 40 hours per week. He pays 5% state income tax on his earnings. How much does Lyndon have remaining after state income tax is deducted from 4 weeks of pay?

Answers

Answer:

$3686 remaining after tax

Step-by-step explanation:

Ray uses 1/4 of a gallon of gasoline to drive a distance of 5 1/2 miles. At this rate, how many miles can he drive on 1 gallon of gas?
Any help is appreciated!

Answers

Answer:

22

Step-by-step explanation:

The cost of 6 purses is Rs.453. How many such purses can be bought for Rs.604

Answers

Answer:

8 Purses

Step-by-step explanation:

6 divided by 453= 75.5

604 divided by 75.5= 8

Plz give brainliest

Ping chooses four numbers.
The mode of these four numbers is 8, the range is 7 and the mean is 11.
Find Ping's four numbers.

Answers

Hello the answer is
8,8,15,13
I hope this helps

Write 10 10 10 10 10 with an exponent.

Answers

Answer:

10 5 ( Exponent )

Hope it helps

It is 10^5, hope this helps

What are the values of m and n

Answers

Answer:

m = 20°, n = 45°

Step-by-step explanation:

Both of the triangles are isosceles as marked on the diagram.

The right triangle has missing angles of:

n = 90°/2 = 45°

The missing angles of the bigger triangle:

m + n = 1/2(180° - 50°)m + 45° = 65°m = 20°

Convert
1.8125 gallons to cups

Answers

Answer: 1.8125 gallons = 29 cups

Step-by-step explanation:

There are 16 cups in a gallon. Therefore, to convert gallons to cups we multiply the number of gallons by 16.

The number of gallons, in this case, is: 1.8125

So, we need to multiply 1.8125 by 16

1.8125 ⋅ 16 = 29

In the final analysis, 1.8125 gallons is equal to 29 cups.

,  Hope this helps :)

Have a great day!!

The temperature was -16 degrees at noon. By 2:00 PM it dropped to 10 Degrees. What was the temperature at 2:00 Pm

Answers

The temperature at 2:00Pm would be -26 degrees

The expression 3(x + 4) - (2x + 7) is equivalent to

Answers

Answer:

Why don't know wt is equal to..

Step-by-step explanation:

3(x + 4) - (2x + 7)

3x + 12 - 2x - 7

1x + 5

x + 5

What number should go in the space?
Multiplying by 0.51 is the same as decreasing by _____%.

Answers

Answer:

49

Step-by-step explanation:

x multiplied by 0.51 is the same as 49% of x

Expand the following expression.

Answers

Answer:

C. [tex]\frac{39}{4}[/tex]x +[tex]\frac{39}{16}[/tex]

Step-by-step explanation:

distribute

Answer:

(39/4)x + 39/16

Answer C

Step-by-step explanation:

(13/4) * 3x   +    (13/4) * (3/4)

(39/4)x + 39/16

Sandra baked 9 pies that weigh 81/4 pounds total. How much does each pie weigh?

Answers

Answer:

2 1/4 ×9

= 9/4 ×9

= 81/4

= 20 1/4

Step-by-step explanation:

81/4/9

= 81/4 × 1/9 (Reciprocal)

= 9/4 pounds  

= 2 1/4 pounds

Answer:

11/12 lb

Step-by-step explanation:

I think you mean 8 1/4 lb.

(8 1/4)/9 = 33/4 × 1/9 = 33/36 = 11/12

Answer: Each pie weight 11/12 lb.

5(4 - 1)

The Second person to answer gets Brainliest

Answers

Answer:

the answer is 15 because you have to do the problem in the parentheses first then multiply by 5

How do you get the volume of a 3d object? How could the way to calculate volume help certain people like construction workers?
Me will give brainliest to the person whose answer is the best.

Answers

Answer:

The way to calculate the volume of a 3D object like a cube is by multiplying the length times the width and the height or you could also use base times the height to find the volume. The way to calculate the volume could help construction workers to see how much area the building takes up and a lot of other stuff.

Step-by-step explanation:

5. What percent of 36 is 24?
A. 50%
B. 66.7%
C. 75%
D. 80%

Answers

Answer:  B.  66.7%

Step-by-step explanation:

Divide 24 by 36:

24/36 = 2/3

B.  66.7%

Answer:

answer is B I just had the test

Step-by-step explanation:

Can you help me I can’T play in my game Sunday if I don’t pass

Answers

Answer:

Option D is the correct answer. The last one.

Hope it helps you...

Please mark as brainlliest!!!

what is the right equation of the graph

Answers

Answer:

It's D)

C is incorrect because the constant is + 1, not - 8

A is incorrect because the f doesn't go up by 2 for every x value

B is incorrect because 2/3 * 2 would be 4/3 which is 1 1/3, which is wrong because g goes up by 2 every x.

D is correct because f goes up by 1/3, and the y-intercept is 1 (Where the line meets when the x-axis is 0) and 1/3 * 6x is 6x/3 which is 2x, then add the y-intercept to the equation, which should be 2x + 1

What’s the remainder of 3,231 / 7

Answers

Select all equations that could be used to solve for the side indicated by the?

Can someone tell me which one is the answer? Am I wrong or correct?

Answers

Answer:

I don't believe your wrong mate

Which statement is true

Answers

Answer:

[tex]xv=yu[/tex]

Step-by-step explanation:

You can simplify the equation by cross multiplying, or doing it the more 'correct' way that some teachers way want:

[tex]\frac{x}{y}=\frac{u}{v}[/tex]

Multiply both sides by y:

[tex]x=\frac{yu}{v}[/tex]

Then multiply both sides by v:

[tex]xv=yu[/tex]

That's one of your answer options, so no need to do anything else.


b) Given that tan e = 3/4, calculate
i) the length of QR
ii) the value of cos 0
6cm
P
Q
R

Answers

Answer:

0+_+0

Step-by-step explanation:

The perimeter of an equilateral triangle is 24 cm. Find the length of each sides

Answers

Answer:

8cm

Step-by-step explanation:

An equilateral triangle means that all the sides are equal (the same length). A triangle has 3 sides so all we have to do is:

24/3 = 8

Each side is 8cm long

Answer:

Length of each sides = 8 cm

Step-by-step explanation:

Given the perimeter of an equilateral triangle, 24 cm:

Equilateral triangles have three congruent sides.

Hence, to find the length of an equilateral triangle, simply divide the perimeter by 3 (since an equilateral triangle has three equal sides).

Perimeter of an equilateral triangle = 24 cm

Side = 24 cm ÷ 3 = 8 cm

Therefore, the length of each side is 8 cm.

PLZ HELP!!

What is the slope of this line?

Enter your answer as a whole number or a fraction in simplest form in the box.

Answers

Answer:

The slope of this line is 1/4

Step-by-step explanation:

this is because the line has a rise of one and a run of 4. It is positive because y increases as x increases.

Answer: 3 over 12 or 1 over 4

Step-by-step explanation:

From the first point to the second you have to count up 1 and over 4, to get to the third point from the first it’s up 3 and over 12. This is the easiest method for me but there are others

The time, t, it takes a runner to cover a specified distance is inversely proportional to the runner's speed. If Jann Avery runs at an average of 6 miles per hour, she
will finish a race in 2. 1 hours. How long will it take Jackie Donofrio, who runs at 4 miles per hour to finish the same race?

Answers

To solve this problem you will need this tool, it is the formula of speed :

speed = distance/time

(I suggest you to remember this one for life, it is a really useful one)

Let's check how long that Jackie nice dude will take to finish the race...

Jann avery runs at an average of 6 mph (miles per hour), so we already got the speed for our formula. And she will finish the race in 2.1 hours so we got the time. What do we miss ? The distance.

Let's write what we already know to solve this puzzle :

6 = d / 2.1

Where d is that unknown distance..  So we are in front of an equation here let's solve it :

d / 2.1 = 6

d = 6 * 2.1

d = 12.6 miles

Now that we know that distance, for the race, we can see if that poor Jackie Donofrio has all his chances to catch Jann Avery...

We already know his speed... and since we have the distance, we write :

4 = 12.6 / t

Where t is the unknown time, for Jackie, to finish the same race. Let's solve the equation :

4t = 12.6 (we multiplied t on each side of the equation)

t = 12.6 / 4

t = 3.15

Jackie Donofrio, who runs at 4 miles per hour, will finish the race in 3.15 hours

Good Luck

For the problem -4(-5)(9), will the answer be positive or negative?

Answers

Answer:

Positive

Step-by-step explanation:

-4(-5)(9)

Negative cancels out negative, so it makes a positive:

20(9)

Simplify normally to get 180 as your final answer.

2x+5=12 i don´t know what the value of x is

Answers

Answer: X = 7/2 or 3.5

x^2-4x+11
In the form a(x+h)^2+k​

Answers

Answer:   im very sorry

Step-by-step explanation:

What is the equation of this line *

Answers

Answer:

I would have to see the line to answer the question.

Help would be greatly appreciated!!
Multiply as indicated. Write the product in standard form.
(1+3i)(-3-i)
Thanks to whoever helps in advance!!

Answers

Answer:

-10i

Step-by-step explanation:

-3-i-9i+3

remove the Opposites

collect like terms

-i-9i

=-10i

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