Mathematics High School

Please find x and a​

Please Find X And A

Answers

Answer 1

Answer:

x = 36

a = 25

Step-by-step Explanation

By Pythagoras Theorem:

[tex]x = \sqrt{ {39}^{2} - {15}^{2} } \\ \\ x = \sqrt{1,521 - 225} \\ \\ x = \sqrt{1,296} \\ \\ x = 36 \\ \\ a = \sqrt{ {20}^{2} + {15}^{2} } \\ \\ a = \sqrt{400 + 225} \\ \\ a = 25 \sqrt{625} \\ \\ a = 25[/tex]

Related Questions

Where do you see rotation in our lives/world?

Answers

Answer:

There's a rotation in our schedule if things we do everyday.

Step-by-step explanation:

Hope this helps :D

There’s a rotation in our schedule

Last HW Mr Thompson! Please Help!

Answers

Answer:

B, D, D, B, C

Step-by-step explanation:

1) The part of the equation that tells us the graph would open downward would be B, the negative coefficient of [tex]x^{2}[/tex].

We know this because, if we reorganize the equation into the standard form  y = mx + b, we get y = -(x²) + 1. This means that for any value we substitute for x, y will always be negative. The answer is B.

2) To find the zeroes of this function, we just have to see which answer makes the function, well, zero.

We have the equation y = (-16t - 2) (t - 1)

We set the equation equal to zero like this:

0 = (-16t - 2) (t - 1)

We also know that anything multiplied by zero will equal zero, so:

0 = (-16t - 2) and 0 = (t - 1)

Now we just solve for t in both equations:

0 = -16t - 2

-16t = 2

t = 2/-16 or -1/8

0 = t - 1

t = 1

So our answer will be D.

3) This time, we are given the same equation but the variable t represents time and y represents the height.

The zeroes are when y = 0, so the zeroes (which are 1 and -1/8 from the last problem) mean that the height is also at zero (which is the ground).

Furthermore, time cannot be negative, so the correct answer choice would be D.

4) We are given the same equation and story problem, but instead we are asked to find the height when the ball was thrown. In other words, we need to find the y-intercept.

The y-intercept is when t = 0, so:

y = (-16t - 2) (t - 1)

y = (-16(0) - 2) (0 - 1)

y = (-2) (-1)

y = 2

So, the correct answer is B, 2 feet.

5) This problem is a simple theoretical question. We know that the constant c will represent the vertical translation or y-intercept, so the correct answer is C.

Megan ran 1 3/4 miles. What is this as an improper fraction?​

Answers

Answer:

Yes it is improper fraction

PLEASEEE ASAPPPPP BRAINLIEST

Answers

0.27272727+0.12856486i

ayuda por favor 5.800%(-10)​

Answers

Answer: -0.58

Divide 5.8 y 100 y te da 0.058 despues lo multiplicas con (-10) y te da -0.58

8(__+__)=8m+8n Please help, ​

Answers

It’s 8 (m+n) = 8m + 8n

Answer: m and n

8(m+n)= 8m + 8n

Solve for x: −4x+6(6−2x)=−7x−36

Answers

Answer:

x = 8

Step-by-step explanation:

-4x + 6(6 - 2x) = -7x - 36

-4x + 36 - 12x = -7x - 36

-16x + 36 = -7x - 36

      +36           +36

-16x + 72 = -7x

+16x           +16x

72 = 9x

divide by 9

x = 8

X will equal 8 then out your answer in these {8}

1/3 x (15 + 6) = ??????????????

Answers

Answer:

10[tex]\frac{1}{3}[/tex]

Step-by-step explanation:

[tex]\frac{1}{3}[/tex]×(15+6)=

[tex]\frac{1}{3}[/tex]×(31)=

[tex]\frac{1}{3}[/tex]×[tex]\frac{31}{1}[/tex]

[tex]\frac{31}{3}[/tex]

10[tex]\frac{1}{3}[/tex]

Help me ASAP!!!!!!!!!

See picture attached.

WINNER GETS BRAINLIEST, A STAR RATING OF EXCELLENT AND THANKS!!!!!!!!!!! Good luck!

Answers

Answer:

Step-by-step explanation:

A)8

Answer to the attachment is:

A) 8
B) 64

A new car is purchased for 18000 dollars. The value of the car depreciates at 7% per year. To the nearest tenth of a year, how long will it be until the value of the car is 8500 dollars?

Answers

Answer:

5 weeks

Step-by-step explanation:

because my teacher told me

Answer:actually it’s 10.3

Step-by-step explanation:delta math gave me the right answer once I got it wrong

for educational purposes which is better vans or nike?​

Answers

Nike because they have a wide variety of kinds of shoes like running, skating etc while vans only has little kinds of styles.

Explain how to determine the diameter of any circle given the circumference.

Answers

Answer:

circle of diagram (89).&"71

If takes 660 metres of fence to enclose a rectangular field. if one side is 30 metres less that twice the other side, find the dimensions of this field (Please help)

Answers

Answer:

210 by 120

Step-by-step explanation:

perimeter=2l+2w

length= 2w-30

width= w

2(2w-30+w) = 660

6w-60= 660

6w= 720

w=120

length= 2*120-30 = 210

30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3​

Answers

Answer:

di you mean m² when you say m2 or not?

The values of the expression are;

-21, 240, 310 respectively

We were given the equation as ;

20 [tex]m^{2}[/tex] + 30m + 40

Then we can find the values of the expression with the given options to know the answer by input the value of ' m' into the given equation

Option (a) (m=-3)

20( [tex]-3^{2}[/tex] )+ 30(-3)+ 40 = -21

Option (b) (m=-4)20([tex]-4^{2}[/tex] )+ 30(-4)+ 40 = 240

Option (c) (m=3)20([tex]3^{2}[/tex]) + 30(3)+ 40 = 310

Therefore, the values of the expression are; -21, 240, 310 respectively

Learn more at: https://brainly.com/question/9585437?referrer=searchResults

For which equation is s=9 not the solution? A.s+6=15,B. 7+s=16 C.13-s=4 ,D.s-3=12

Answers

Answer: its D

Step-by-step explanation:

Answer:  D♪ヽ(･ˇ∀ˇ･ゞ)

Step-by-step explanation:

Add the polynomials:
2a+3b+5a-7b Explain your response

Answers

7a - 4b

Step-by-step explanation:

Add the numbers ending with 'a' together, and then add the numbers ending with 'b' together.

First of all, I will put the letters beside each other.

2a + 5a + 3b - 7b

2a + 5a = 7a

3b - 7b = - 4b

Therefore, the answer is 7a - 4b.

Frederick's brother is going on a hike. He has his backpack filled with supplies. His backpack weighs 400 ounces. How many pounds is Frederick's backpack? Note: 1 pound = 16 ounces​

Answers

Answer:

25

Step-by-step explanation:

Do 400 divided by 16 to convert to pounds

400/16=25

Hope this helped :)

Answer:

25 pounds

Step-by-step explanation:

1 Pound=16 ounces

? Pounds=400 ounces

400 divided by 16=25

25 pounds=400 ounces

Tia shares 53 balloons equally among 4 children. How many balloons will be left over?​

Answers

Answer:

1 balloon

Step-by-step explanation: if we take 53 divided by 4, we get 13 so each child gets 13 balloons leaving one behind

Answer:

53 divided by 4 = 13.25

Step-by-step explanation:

given the equation y = 3x +2, which of the following slopes would have a parallel line have

Answers

Answer:

y = 3x + 2 because there are no value for x.

Step-by-step explanation:

Pls answer if u know the answer, don't just do it for points.
A motor is rated at 1500 Watts and a second motor is rated at 2200 Watts. If they each needed to lift a 100 kg box 20 meters, which one would get the job done first?

Answers

Answer:

motor of the 1500

                                       

Step-by-step explanation:

i took the test hopefully is the right one.

share £84 in the ratio 6:3:3​

Answers

£84 in the ratio 6:3:3

first, divide the £84 in half (by 2)
this comes out to be £42
secondly, divide £42 in half (by 2)
this comes out to be £21

the answer is:
£42 : £21 : £21
Or
84 units divided by 6+3+3 units is 84/12= 7 (value of each unit)
6x7: 3x7: 3x 7
42: 21: 21

pls hurry will give brainliest

Answers

Answer:

Step-by-step explanation:

6(k + 2) + 1 = 13 (distribute 6 around the k+2)

6k + 12 + 1 = 13 (add 12 and 1)

6k + 13 = 13 (subtract 13 from both sides)

6k = 0 (divide by 6)

k = 0

Answer:

6( k + 2 ) + 1 = 13

6k + 12 + 1 = 13

6k + 13 = 13

6k = 0

k = 0/6

so it will 0

Multiplying by 0.51 is the same as decreasing by___%

Answers

The answer for your question is 10% hope this helps you

Answer:

The correct answer is 51%

Find the 8th term of the geometric sequence 4, -12,36,...

Answers

-8748 is your answer

5 donuts and 2 cups of hot Chocolate costs 24$. 2 donuts and 3 cups of hot chocolate costs 14$.How much does each donut and each cup of hot chocolate cost​

Answers

Answer:cost of each donut =$4

and cost of each cup of hot chocolate =$2

Step-by-step explanation:

Step 1

Let donuts be represented as d

and cups of hot chocolate be rep as c so that

5 donuts and 2 cups of hot Chocolate costing 24$ will be expressed as

5 d+ 2 c= 24

And 2 donuts and 3 cups of hot chocolate costing  14$ will be expressed as

2d +3 c= 14

Step 2

Using elimination method,Multiply equation 1 by 3 and equation 2 by 2

15d+ 6c= 72----equation 3

4d+ 6c= 28-----equation 4

Subtracting equation 4 from equation 3 gives us

11 d=44

d= 44/11

d= 4

To find c, using equation 1

5 d+ 2 c= 24

5 x 4+ 2c=24

20+2c=24

2c=24-20

2c=4

c=4/2 =2

cost of each donut =$4

and cost of each cup of hot chocolate =$2

find the equation of the line shown:

Answers

Answer:

Y= -1/2x -1

Step-by-step explanation:

whats is the cost of electricity to run personal computer

Answers

Answer: Desktop computers can cost anywhere from $300-$4,000 depending on how good it's inside components are. The average computer might go for around $400. For more advanced computers the price might be $1,000 or more. All in all, the cost of a computer / PC truly depends on how much power you're needing from it.

Step-by-step explanation:

Srry its kinda confusing but I hope it helped

Answer:

We estimate that an average modern desktop PC will use approximately 100 watts of power, not including the display screen. Click calculate to find the energy consumption of a desktop computer using 100 Watts for 6 hours a day  with $0.10 per kWh

Step-by-step explanation:

80 timess 40 plus 60

Answers

Answer:

3260 hope i helped u

Step-by-step explanation:

80 times 40 is 320 then plus 60 equals 380 have a good rest of your day/night

solve the equation 4+3x-1/2=9 .Explain the reasons why you chose your solution method.

Answers

Answer:

x = 5

Step-by-step explanation:

that would look like this:

[tex]\frac{4+3x-1}{2}=9[/tex]

first, to remove the denominator (2), we should multiply both sides by 2. therefore, we get:

4 + 3x - 1 = 18.

now, we transpose 4 and -1 to the other side, in order to isolate 3x.

3x = 18 + 1 - 4

3x = 15

to find x, we divide both sides by 3. therefore, we get:

x = 5

Answer:

Step-by-step explanation:

[tex]4 + 3x - \frac{1}{2}=9[/tex]

Subtract 4 from both the sides

[tex]3x - \frac{1}{2}=9 - 4\\\\3x - \frac{1}{2}= 5[/tex]

Add (1/2) to both sides

[tex]3x = 5 + \frac{1}{2}\\\\3x = \frac{5*2}{1*2}+\frac{1}{2}\\\\3x=\frac{10}{2}+\frac{1}{2}\\\\3x=\frac{10+1}{2}\\\\3x=\frac{11}{2}\\\\x=\frac{11}{2*3}\\\\x=\frac{11}{6}[/tex]

how many times does 21 go into 3

Answers

Answer:

it cant go into it, but if you mean 3 going into 21, its 7

Step-by-step explanation:

Answer:

7 it is 7

Step-by-step explanation:

you mean 3 into 21

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