can someone help me do 62

Can Someone Help Me Do 62

Answers

Answer 1

Answer:

a^2 = -2a

a= -2

b=18/a

b=18/ -2

b= -9


Related Questions

Read the statement below and then select the idea that can be inferred from the statement.

Toxicity is high in cities. HELP FASSSSSSSST!!!!!

Environmental scientists help keep the air safe.
Temple University is near Philadelphia.
There is some lead in drinking water.
There are more factories in the city than in the country.
Ground soil can become poisoned with lead.

Answers

Answer: I would say 4

Step-by-step explanation:

Answer:

There are more factories in the city than in the country.

Step-by-step explanation:

Hope this helps!

Maria stated that 5/6 is between 4/5 and 6/7

Answers

Answer:

It's true, if that's what your asking.

Step-by-step explanation:

5/6 = 0.833 to 3 sig.fig.

4/5 = 0.800 to 3 sig.fig.

6/7 = 0.857 to 3 sig.fig.

0.833 is more than 0.800 and less than 0.857.

If line m is perpendicular to line n, and the slope of line m is -5/3, what is the slope of line n? Write in simplest form.

Answers

Answer:

Step-by-step explanation:

Slope of perpendicular line = [tex]\frac{-1}{m}[/tex]

       = -1 ÷ [tex]\frac{-5}{3}[/tex]

        [tex]= -1 *\dfrac{-3}{5}\\\\=\dfrac{3}{5}[/tex]

find T1 and T2, if a 60 N load is hanged and in equilibrium position.​

Answers

Answers:

T1 = 59.5677879151077 N

T2 = 45.7583538175564  N

The values are approximate. Round the values however you need to.

=========================================================

Explanation:

Refer to the diagram below. I have added red and blue lines to break up each tension vector into the x and y components. For tension T1 in red, we have x1 and y1 as the horizontal and vertical components respectively. Note that x1 points to the left and y1 points upward.

For T2 in blue, we have x2 point to the right and y2 point upward. The horizontal components x1 and x2 must be equal, and point in opposite directions, so that we have horizontal balance. Otherwise, the object would accelerate to one side rather than be stationary.

Applying a bit of trig, we can say

cos(angle) = adjacent/hypotenuse

cos(45) = (x1)/(T1)

x1 = T1*cos(45)

and also

sin(angle) = opposite/hypotenuse

sin(67) = (x2)/(T2)

x2 = T2*sin(67)

----------------------

Again, the x1 and x2 vectors must be equal in magnitude, allowing us to say this

x1 = x2

T1*cos(45) = T2*sin(67)

T1 = T2*sin(67)/cos(45)

which we'll use later.

----------------------

Doing a bit more trig set up, we know that

sin(45) = (y1)/(T1)

y1 = T1*sin(45)

and

cos(67) = (y2)/(T2)

y2 = T2*cos(67)

Adding those two y components together will yield the total upward force that the ropes apply

y1+y2 = T1*sin(45)+T2*cos(67)

y1+y2 = (T2*sin(67)/cos(45))*sin(45)+T2*cos(67)

y1+y2 = T2*( sin(67)*sin(45)/cos(45) + cos(67) )

y1+y2 = T2*( sin(67)*tan(45) + cos(67) )

y1+y2 = T2*( sin(67)*1 + cos(67) )

y1+y2 = T2*( sin(67) + cos(67) )

This combined upward pull must be equal to 60 newtons or else we wouldn't have vertical equilibrium. If the upward pull was smaller than the downward pull, then the object would be falling. If the other way around, then the object would be pulled upward at some accelerated speed (think of a spring action).

So we'll set y1+y2 equal to 60 and solve for T2

y1+y2 = 60

T2*( sin(67) + cos(67) ) = 60

T2 = 60/( sin(67) + cos(67) )

T2 = 45.7583538175564

That value is approximate. The units for T2 are in newtons. This is the amount of pull or force along the T2 line in the upper right direction.

Side note: make sure your calculator is in degree mode.

----------------------

The last thing to do is to compute T1

T1 = T2*sin(67)/cos(45)

T1 = 45.7583538175564*sin(67)/cos(45)

T1 = 59.5677879151077

That value is approximate as well. The units are also newtons here. This represents the amount of pull in the upper left direction as the diagram shows.

----------------------

Finding such values for T1 and T2 is useful to determine if a rope can handle a certain stress load. Let's say we had a rope that was rated for only 40 newtons. Anything beyond 40 N for this hypothetical rope would mean the rope breaks. We found T1 and T2 beyond this threshold which would indicate that such a rope isn't up to the task of holding this object up (at least not with the angles shown in the diagram).

15 examples of real life situations where we apply approximation​

Answers

Answer:

Have a splendiferous day!

Hope this helps!

Step-by-step explanation:

Shopping at the grocery store

Rough calculations of math

Figuring out time it would take to reach a location

Making nearly accurate measurements

Trying to stay within a budget

Solving extremely complicated numbers

Dealing with decimals

For quick calculations in a business

To prepare ahead, e.g an overestimate

and so on.

help what is the answer to this'

Answers

Answer:

Your answer is  x [tex]\geq[/tex] 77

Step-by-step explanation:

[tex]\frac{x}{7} \geq 8+3[/tex]

[tex]\frac{x}{7} \geq 11[/tex]

[tex]\frac{x}{7 } * 7 \geq 11*7[/tex]

[tex]x \geq 77[/tex]

Hope this helps!

If 20 apples cost N300 how many apples can be bought for N1875

Answers

Answer:

28125

Step-by-step explanation:

300÷20=15

15×1875=28125

A translation 2 units to the right and 10 units up. Then a reflection over the line AC

Answers

80 is the correct answer

Solve pls
6(n-4)=3n

Answers

8 is the correct answer

equivalent equation to 3/50-x/50=7/50

Answers

Answer:

x=-4

Step-by-step explanation:

Multiply both sides by 50 and you get

3-x =7,

so x= -4

Which of the following is correctly written in Standard Form?
A.) -6x + 3y = 8
B.) y = 6/5x + 4
C.) 6x - 2y = 4
D.) 6/5x + 3y = 8
HELP NEEDED PLZ

Answers

b. standard form is y=mx+b

So, the question on my test was a pair of in line skates is on sale for 90. if this price represents a 9% discount from the original price, what is the original price to the nearest cent. My teacher got 98.90, but i got 98.10. which is mathematically correct?

Answers

Step-by-step explanation:

I got 98.1, not sure how she got her answer

5 of 8
Here is a list of numbers:
-3, 1, –12, 10, 1, 16, 19, 4, 16,
2
State the median.

Answers

Answer:

3

Step-by-step explanation:

A square metallic frame has a perimeter 208cm .It is bent in the shape of a circle. Find the area of the circle.​

Answers

Answer:

676 pi

Step-by-step explanation:

208 ÷ 4 =52

(each length =52cm)

diameter = 52 cm

radius = 52÷2 = 26cm

area of circle = pi × radius ^2

pi × 26^2 = 676 pi

Sam started cooking at 7;43 AM and finished at 8;32 AM. how long did it take him?

Answers

Answer:

49 minutes

Step-by-step explanation:

7: 43

8: 32

17 minutes 'till 8:00

Another 32 'till 8:32

so add 17+32

help???? i will be so greatfull

Answers

i 150
ii 200
iii 350
i 50
ii 200
iii 250

Solving quadratic equation by Factorization
[tex]10x {}^{2} - x = 2[/tex]
Help me pleasee​

Answers

[tex]x = - \frac{2}{5} \\ x = \frac{1}{2} \\ \\ \\ hope \: \: it \: \: helps \: \\ \\ see \: \: the \: \: attachment[/tex]

Does anyone know this please!!?!?

Answers

Answer:

5)3/2

6) 7

7)16

8)13

9)27

10)17

Step-by-step explanation:

5) 4x+3=10x-1

x=3/2

6)9x-25=38

x=7

7)5x-7=

6x² +12x²y + 6xy² chỉ tui đi

Answers

Answer:

6x(x+2xy+y^2)

Step-by-step explanation:

The mass of Earth is approximately 5.97 × $10^{24}$ kilograms. The mass of Mars is approximately 639,000,000,000,000,000,000,000 kilograms. What is the mass of Mars in Scientific Notation? $10^{23}$

Answers

9514 1404 393

Answer:

  6.39×10²³

Step-by-step explanation:

There are 23 digits to the right of the most significant digit (6), so it is in the number place with a place value of 10²³. The number in scientific notation is ...

  6.39×10²³ . . . . kg

You and a group of friends went out to eat at Red Lobster. Your bill came to $89.75. You gave the waitress a 28% tip. What is the total bill including the tip?

Answers

Answer:

tip total = $25.13

total(bill+tip) = $114.88

A carpenter bought a piece of wood that was 0.54 meters long. Then he sawed 0.39 meters off the end. How long is the piece of wood now?

Answers

Answer:

Simply substract 0.39 from 0.54 = 0.15

Therefore the carpenter is left with 0.5 metre of wood.

Olivia started knitting a jumper
4 hours and 43 minutes before 19:13
What time did she start knitting the jumper?
Give your answer in 24 hour time.




Answers

Answer: 14:30

Step-by-step explanation:

19:13 - 4.43 looks easy, but time expressed in 24-hour format is a base 60 calculation in the decimal portion.  It only contains values between 0 and 59.

I broke it it down to simplify:

1)  Take 13 minutes off the 19:13 to make it 19:00.  

2)  Then take the same 13 minutes off the 4.43, which would make it 4.30 (4 1/2 hours)

3)  Now take off the 4.30 from the 19:00.  The 4 portion of 4.3 can be removed:  19:00 - 4:00 = 15:00.  Then remove the 0:30 portion (1/2 hour), which would leave 14:30.

14:30 plus 4:43 = 18:73, but the 0:73 must convert to 1:13 to account for the 60 minutes/hour format

Olivia started knitting a jumper at 13:30.

What is 24-hour time format?

A 24-hour time format is similar regular AM/PM time, except that you keep counting up after you get past 12 PM (noon). So 1 PM in 24-hour format is 13:00, 2 PM is 14:00, and so on. All you need to do is add 12 to any time in the PM to get 24-hour format time.

How to calculate the time?

The given time is 19:13 and Olivia started knitting a jumper

4 hours and 43 minutes before the given time.

Then he starts at  13:30 started knitting a jumper.

Learn more about what time Olivia started knitting the jumper here-brainly.com/question/25212957

#SPJ2

In ΔBCD, \text{m}\angle B = (5x+14)^{\circ}m∠B=(5x+14)

, \text{m}\angle C = (x+19)^{\circ}m∠C=(x+19)

, and \text{m}\angle D = (2x+19)^{\circ}m∠D=(2x+19)

. What is the value of x?x?

Answers

Answer:

x = 16

Step-by-step explanation:

m<B+m<C+m<D = 180°

5x + 14 + x + 19 + 2x + 19 = 180

8x + 52 = 180

8x = 180 - 52

x = 128/8

x = 16

7,218 round off thousand​

Answers

correct answer: 7,0007,218 rounded to the nearest 1,000 would be 7,000!

5 phần 4 cộng x bằng trừ 1 phần 2

Answers

Answer:

5

-

2..................

4.5 kg equals times one gram

Answers

Answer:

4500 gr

Step-by-step explanation:

4.5 kg equals some number (n) times one gram.  Solve this for n:

4.5 kg = n(1 gr)

Recall that 1 kg = 1000 gr.  Because of this, the equation above becomes

        4.5 kg          (4.5)(1000 gr)

n = --------------- or ------------------- or 4500 gr

       1000 gr                     1 gr

Select the equation that contains the points, (-2,-2) and (4, 10).
O y+6=-2(x+1)
O y+2 = 6(x+6)
O None of the other answers are correct
O y-6= 2(x-2)
O y-6=-2(x - 2)

Answers

none of the answers are correct ?

What is the square root of 18 plus the square root of 2? And is it rational or irrational?

Answers

The answer is (rounded to the nearest tenth) about 5.7 and since neither 18 or 2 have a perfect square, so this is irrational.

Identify if the given statement is true or false.
The incenter is the point of concurrency of the altitudes of a triangle.
True or False

Answers

Answer:

false, true, false

Step-by-step explanation:

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