Giúp mình giải với mọi người. Cẩm ơn rất nhiều

Gip Mnh Gii Vi Mi Ngi. Cm N Rt Nhiu

Answers

Answer 1

Answer:

B. 4√5

Step-by-step explanation:

x bằng căn bậc hai của (8^2 + 4^2) theo định lý pytago, trong tam giác vuôn, c^2 = a^2 + b^2


Related Questions

algebraic expression question 3x and (5x+8y) find the product​

Answers

Answer: X=3.5y
Step by step explication:
Simplifying
3x+8y+-5x+-1y=0

What is the value of the x variable in the solution to the following system of equations?
2x - 3y = 3
5x - 4y = 4

Answers

Answer:

x = 0

Step-by-step explanation:

Solve 2x - 3y = 3 for x:

[tex]2x - 3y = 3[/tex] [tex]2x - 3y + 3y = 3+ 3y[/tex]  (add 3y to both sides)[tex]2x = 3y + 3[/tex] [tex]\frac{2x}{2} = \frac{3y+3}{2}[/tex] (divide both sides by 2)[tex]x = \frac{3}{2}y + \frac{3}{2}[/tex]

Substitute 3/2(y) + 3/2 for x in 5x - 4y = 4

[tex]5x - 4y = 4[/tex] [tex]5(\frac{3}{2}y + \frac{3}{2}) - 4y = 4[/tex] [tex]\frac{7}{2}y + \frac{15}{2} = 4[/tex] (simplified both sides of equation)[tex]\frac{7}{2}y + \frac{15}{2} - \frac{15}{2} = 4 - \frac{15}{2}[/tex] (subtract 15/2 from both sides)[tex]\frac{7}{2}y = -\frac{7}{2}[/tex] [tex]\frac{7}{2}y * \frac{2}{7} = \frac{-7}{2} * \frac{2}{7}[/tex] (multiply both sides by 2/7)[tex]y = -1[/tex]  

Substitute -1 for y in x = 3/2(y) + 3/2

[tex]x = \frac{3}{2}y + \frac{3}{2}[/tex] [tex]x = \frac{3}{2}(-1) + \frac{3}{2}[/tex] [tex]x = -\frac{3}{2}+ \frac{3}{2}[/tex] (simplified both sides of equation)[tex]x = 0[/tex]

Therefore, the value of the x-variable is 0.

.
Emma made snack mix for a party. Each serving is 2/3 cup. If she wants to take
15 servings to the party, how many cups of snack mix should she make?

Answers

Answer:

10 cups

Step-by-step explanation:

What is the relationship between

Answers

Answer:

option A

Step-by-step explanation:

the together form a complementary angles.

hope this helps you.

✌️✌️✌️

The sum of the measure of angle ∠AXY and angle ∠YXB is the measure of ∠AXB.

The relationship between ∠AXY and ∠YXB is that they are;

Complementary angles

Reasons:

From the diagram in the question, we have;

∠BXC = 90° Given

∠BXC and ∠BXA are linear pair angles

Therefore;

∠BXC and ∠BXA are supplementary angles, which gives;

∠BXC + ∠BXA = 180° definition of supplementary angles

Therefore;

∠BXA = 180° - ∠BXC

∠BXA = 180° - 90° = 90°

∠BXA = 90°

∠AXY + ∠YXB = ∠BXA by angle addition property

Which gives;

∠AXY + ∠YXB = 90° by substitution property

Therefore ∠AXY and ∠YXB are;

Complementary angles,  by definition of complementary angles.

Learn more about complementary angles here:

https://brainly.com/question/3070324

Write an equation of the line with a slope of frac 3/4
and a y-intercept of -2.

Answers

Answer:

Equation:   y = 3/4x -2

find the 125th term of the number pattern 2,4,6,8......

Answers

Answer: 250

Step-by-step explanation: 125*2 = 250

If r = 32 and t = 8, what is the value of the following expression?
r + 56 ÷ t · 5
r + 56 ÷ t · 5
A.
79
B.
67
C.
55
D.
75

Answers

Answer:

The answer is B.

Step-by-step explanation:

  r + 56 ÷ t · 5

= 32 + 56 ÷ 8 · 5

= 32 + 7 · 5

= 32 + 35

= 67

PLS HELPPP MEEEEEEEEE

Answers

Answer:

x= 7

B= 112

F= 68

Step-by-step explanation:

to find x we set up an equation, (16x)=(4x+84). They are alternate interior angles which are always equal.

calculate it and you'll find x=7.

B and the angle 4x+84 are equal because they are vertical angles, to find it we just put 7 instead of x into 4x+84.

4(7)+84=112

angle f is supplementary to 16x. 16x is also 112 because they are equal, so its just 180-112=68

f(x)=12x to g(x) = 2x

Answers

Answer:

g(x)=12-x^2. g(x)=12−x2 g ( x ) = 12 - x 2

Step-by-step explanation:

your welcome

Work out the nth term of the following sequence:
7, 16, 31, 52, 79

its a quadratic sequence and i worked out the second difference (6) so know its 3n² but i don't know the rest

Answers

Answer:

Step-by-step explanation:

Since it is given that it is quadratic it is of the form   f(n)=an^2 + bn+c.

Since we know a few terms we can plug in to get some equations:

f(1)= a +b+c = 7

f(2)=4a+2b+c = 16

f(3)=9a+3b+c = 31

Now you've got yourself a system of three equations which I trust you can solve.

I will say that I'm not sure that this is the most efficient solution(check out the link below which might have a better solve).

Here are some nice explanations with the "real" math notation for a slightly different but related problem:

https://math.stackexchange.com/questions/2345256/how-to-find-the-nth-term-of-quadratic-sequences

Good luck!

Over 5 days, Jaasiel practices soccer for a total of 3 hours. Jaasiel practices baseball for the same amount of time each day. If he practiced soccer and baseball for a total of 30 hours, how many hours per day did Jaasiel practice baseball? *

Answers

Answer:

3 HOURS

Step-by-step explanation:

HE PRACTICED 3 HOURS A DAY IN BOTH SPORTS MEANING IN 1 DAY HE PRACTICED A TOTAL OF 6 HOURS 6 HOURS A DAY FOR 5 DAYS IS EQUAL TO 30 HOURS OF PRACTICE A WEEK FOR BOTH SPORTS. SO 6 HOURS A DAY TOTAL AND 3 HOURS A DAY IF YOU ONLY COUNT 1 OF THE 2 SPORTS MENTIONED.

Express 4 inches to 3 feet as fraction in simplest form.

Answers

Answer:

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

Step-by-step explanation:

The quantities must be in the same measure

3 feet = 3 × 12 = 36 inches ( 1 foot = 12 inches )

Then

fraction = [tex]\frac{4}{36}[/tex] = [tex]\frac{1}{9}[/tex]

The angles featured below are ______ angles

Answers

Answer:

its normall

Step-by-step explanation:

3. Find the slope of the line using BOTH of the growth triangles in the graph. Is the slope the same between points A to B as it is between B to C? What are the slopes of each triangle? Are the slopes the same? (Circle one) Yes No

Slope from A to B: _____________

Slope from B to C: _____________


(I will give top rating to who answers first

Answers

Answer:

Yes, they are the same.

Step-by-step explanation:

The slope of each triangle is 2/3. The slopes are the same.

The Slope from A to B: 2/3

The Slope from B to C: 4/6.

HELP PLEASE!!!!
WILL GIVE BRAINLIEST
ANY LINKS OR WRONG ANSWERS WILL BE REPORTED!!!!

Answers

Answer:

64 ounce bottle of orange juice  has a greater percent of water

Step-by-step explanation:

Case 1) An 80 ounce bottle of apple juice contains 32 ounces of water

Total quantity of bottle = 80 ounces

Amount of water = 32 ounces

So, Percent of water = [tex]\frac{32}{80}[/tex] x 100

                                 = 40%

Case 2) An 64 ounce bottle of orange juice has 48 ounces of water

Total quantity of bottle = 64 ounces

Amount of water = 48 ounces

So, Percent of water = [tex]\frac{48}{64}[/tex] x 100

                                 = 75%

Hence 64 ounce bottle of orange juice  has a greater percent of water

what is the Greatest Common Factor and the Least common Multiple os 3 and 8

Answers

3 is a prime number - the GCF is 1, and the least common multiple of 3 and 8 is 24.

Answer:

Greatest Common Factor is 1

Least Common Multiple is 24

Step-by-step explanation:

Greatest common factor is the biggest whole number that can be multiplied into the numbers. In this case 1x8=8 and 1x3=3.

Least common multiple is the smallest number each number can multiply into. In this case 3x8=24 and 8x3=24

Another division question! (It's a pictiture)

Answers

Answer:

0.60 ÷ 15

Explanation: Brainliest please

A car travels 15 miles per gallon of
gas. Write an equation that shows the
relationship between miles (y) and
gas (x).
A. y = tx
B. 15x = y
C. 15 = yx
D. 15y = x

Answers

Answer:

15x = y

Step-by-step explanation:

15 times the gallons of gas =  miles

15x = y

look at the example. how would the quotient change if the total number of seats was 3,200 instead of 320? explain

Answers

If the total number of seats is 3200 instead of 320, then the quotient will change by a product of 10

The dividends are given as: 3200 and 320

By comparing 3200 and 320, we have:

3200 > 320 i.e. 3200 is greater than 3203200 = 320 * 10 i.e. 3200 is greater than 320 ten times

Quotient is simply the result gotten from dividing two quantities.

This means that:

If the total number of seats is 3200 instead of 320, then the quotient will change by a product of 10

Read more about quotients at:

https://brainly.com/question/16134410

Please help asap! I will give brainliest for correct answer!

Answers

Answer:

0.01miles/day

Step-by-step explanation:

1: Convert 9cm to miles

[tex]9cm*(\frac{1m}{100cm})*(\frac{1km}{1000m})*(\frac{1mile}{1.609km})=0.000055935miles[/tex]

2: Convert 5.5 minutes to days

[tex]5.5minutes*(\frac{1hour}{60minutes})*(\frac{1day}{24hours})=0.003819444 days[/tex]

3. Set miles over days

[tex]\frac{0.000055935miles}{0.003819444days}[/tex]

4: Divide to get the answer

0.014644 miles/day

5: Round to get the final answer

0.01 miles/day

lol sorry again. need #2 for this assignment

Answers

Answer:

r=1

Step-by-step explanation:

13/20=3/4r-1/10r

multiply by 40

26=30r-4r

26r=26

r=1

11 pie( root 64 -5 )
please simplify and show step by step method- I will give you brainliest


Answers

Answer:

Step-by-step explanation:

Which graph shows the solution to the inequality -3x-7 <20?
.
-10
-5
5
10
O
-10
-5
0
5
10
o
-10
0
5
10
-10
0
5
10

Answers

Answer:

Second choice.

Step-by-step explanation:

Option 1: solve the inequality. Add 7 to both sides, and multiply by -3 (don't forget that this makes the inequality switch direction!) to get [tex]x > {27 \over {-3}[/tex] or x > -9

Option 2. Plug 0 in it. You get -7 < 20, which is obviously true. So 0 is in the set of solution and it means B and C are possible solutions. So let's check another easy value. let's say -10. replacing it you get [tex]-3 (-10) -7 < 20[/tex] or [tex]30 -7 <20[/tex]. But 23 is obviously greater than 20, which means -10 is not a part of the solution. Correct answer is B

am i correct i chose c but i might think is wrong (valid answer only!!)
Graph the linear inequality.

4x+5y≥−15

Answers

Answer:

You are absolutely correct!

Step-by-step explanation:

The correct answer is C!

Hope this helps you realize!

What is the value of x?

Answers

Answer:

x = 4[tex]\sqrt{3}[/tex]

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin60° = [tex]\frac{\sqrt{3} }{2}[/tex] , then

sin60° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{8}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )

2x = 8[tex]\sqrt{3}[/tex] ( divide both sides by 2 )

x = 4[tex]\sqrt{3}[/tex]

How far is it around the perimeter of crater lake?

Answers

NRHP reference No. Rim Drive is a scenic highway in Crater Lake National Park in southern Oregon, United States. It is a 33-mile (53 km) loop that follows the caldera rim around Crater Lake.

Sam invests a sum of money into an account that pays 3%
compound interest per annum.

Work out after how many years Sam will have doubled his investment.

Give your answer as a whole number of years.

Answers

Answer: It would take 24 years to double your investment.

Hope this helps!

Sam will have doubled his investment for 33 years.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that Sam invests a sum of money into an account that pays 3%

compound interest per annum

We need to find how many years Sam will have doubled his investment.

With C your initial capital, k the interest rate and t the number of years. Since k is given as a simple interest rate, you’re essentially trying to solve :

C(1+tk)=2C

With a little bit of algebra, you should find that:

t=1/k

k=3%=0.03

t=1/0.03=33.33=33 years.

Hence,  Sam will have doubled his investment for 33 years.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

Select all of the following that are ordered pairs of the given function.



ƒ(x) = 3 - 2x

Answers

Answer:

These are the answers

(-1,5)

(0,3)

(2,-1)

Step-by-step explanation:

Simplify:
-0.2sqrt(x^2)

Answers

Answer:

-0.2x

Step-by-step explanation:

-0.2*sqrt(x^2)

-0.2x

graph using the slop and y intercept

Answers

the slope is -1/2 and the y intercept is 2

Answer:

the slop is -1/2 and they y intercept 2

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