Please help, 20 points

Which choice is equivalent to the expression below?

See picture

Answer:

dydx=−1x√x2−1.

Step-by-step explanation:

Then, differentiating simplicity gives: cosydydx=−x−2 ∴dydx=−1x2cosy.

Answer:

x=16

Step-by-step explanation:

20^2-12^2=256

sqrt256=16

Question 1. Is 40

Question 2. Is 10

Answer:

4.0 x 10^-5

Step-by-step explanation:

Answer:

4*10^-5

Step-by-step explanation:

0.00004 has 4 zeros. Add 1 = 5

The power on 10 becomes negative (-5)

4 is a number between 1 and 9 inclusive.

4 * 10^-5

Answer:

x=11

Step-by-step explanation:

13×11+26=117

5×11+8=63

117+63=180

Answer:

No solution

Step-by-step explanation:

Answer:

There's not a value of n so that n + 5 = n + 7

Step-by-step explanation:

if n + 5 = n + 7, then:

subtract 5 from each side of the equation:

n = n + 2 which does not have a solution for n

Answer:

17 and 20

Step-by-step explanation:

omg I can't explain it took much time to solve I've got no time

im so sorry

Answer

measure of angle A: 28 degrees

BC ≈ 13.3

BA = 28.3

hope this helps

Step-by-step explanation:

angle A

90- 62 = 28

angle A = 28

BC

tan (A) = BC / 25

(25) tan 28 = BC / 25 (25)  multiply 25 on both sides to cancel it out from BC

13.292735 = BC

BC ≈ 13.3

BA

BA^2 = 13.3^2 + 25^2  Pythagorean theorem

BA ≈ 28.3

If any of these are wrong, just follow the steps and make sure to use Ans in the calculator instead of rounding your numbers! Good luck :)

Answer:

X, -1X, X-1, 1-X

Hope this helps

Answer:

x−1

x

-1x

1−x

Step-by-step explanation:

x = -14

1−x = 15

x−1 = -15

-1x = 14

Answer:

x = -8

Step-by-step explanation:

-x/8 = 1         *-1

x/8 = -1         *8

x = -8

Leave a like if this answered your question

Answer:

59 cups ;

10 cups

Step-by-step explanation:

Given that he fitted model :

c = 2t - 89

Where, c = cups of lemonade sold ; t = high temperature

On a day when high temperature is 74 degrees ; cups of lemonade sold

Hence,

c = 2t - 89

c = 2(74) - 89

c = 148 - 89

c = 59 cups

Sunday is expected to be 5 degree warmer than on Saturday :

The number of cups sold on Sunday using the fitted model should be :

Difference in temperature between Saturday and Sunday multiplied by the slope value

Slope value from the model = 2

Temperature difference = 5

Difference in Number of cups :

2 * 5 = 10 cups

Number of lemonade sold on Sunday will be 10 cups more than that sold on Saturday

Answer: 59 cups

Step-by-step explanation:

its 59 cause yea

Answer:

[tex]v = \pi {r}^{2} h \\ v = \pi {(2x + 3)}^{2} (3x + 2) \\ v = \pi(4 {x}^{2} + 12x + 9)(3x + 2) \\ v =( 12 {x}^{3} + 36 {x}^{2} + 27x + 8 {x}^{2} + 24x + 18)\pi \\ v =( 12 {x}^{3} + 44 {x}^{2} + 51x + 18)\pi[/tex]

Answer:

fraction: 3 1/5  

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.

x/50= 84/100

x= 4200/100

x= 42

Needed to score a 42/50 to get an 84%

2.

x/75 = 96/100

x= 7200/100

x= 72

Needed to score a 72/75 to get a 96%

Answer:

a)

x = (158-112) / 1x

or  158-112 / x

b)  112+ 23 /158-23 = x

or if you want x to be the same value as  the first part then you could write

112+x / 158-x = 135/135

or revise as an equality

23 ≤ 112 < 158

112  + 23 = 158

112 + x = 158

Step-by-step explanation:

Tailwind speed

x = 158-112 / 2

x = 46/2

x = 23 knots

Speed

x = 112 + 23 / 158-23

x = 135 / 135 m/h = same speed as stated in question.

Answer:

includes cluster lienier includes oulier

Step-by-step explanation:

:)

Answer:

i think its a,c,e

Step-by-step explanation:

Step-by-step explanation:

To find the Circumference of a triangle you use the formula C= 2(pi)r

in both of the problems you have the radius(r) and you plug the #'s in and solve

(pi)= 3.14...

#1.

2(pi)14.5

28(pi)

C= 87.92

#2.

2(pi)9.5

19(pi)

C= 56.66

Answer:

70%

Step-by-step explanation:

140 = 200x

140/200 = x

14/20 = x

7/10 = x

70%

Answer: It dropped by 70%

Step-by-step explanation:

200-60=140

140/200=.70

[tex]s \: = \: \frac{g + a}{2} [/tex]

Answer:

(-4).(-4) = 4^2

Step-by-step explanation:

First, some rules that we need to remember:

if A is a positive number, then:

-A = (-1)*A

Also:

A*A = A^2

We also should remember that we can multiplicate in any order we want, this is:

A*B*C = (A*B)*C = A*(B*C)

And we also can change the order of the numbers:

A*B = B*A

And finally, we need to remember the sign rules for multiplication.

(+)*(+) = (+)

(+)*(-) = (-)

(-)*(+) = (-)

(-)*(-) = (+)

Ok, now let's look at our expression.

(-4)*(-4)

First, we can rewrite this as:

( (-1)*4)*((-1)*4)

And we can rearrange the numbers to:

(-1)*(-1)*4*4

Now let's multiplicate the first two ones, because of the sign rule, we know that the outcome will be positive, and 1 times 1 is equal to 1,

(-1)*(-1) = 1

Then:

(-1)*(-1)*4*4 = 1*4*4 = 4*4

And we know that when a number is multiplied by itself we can rewrite it as:

4*4 = 4^2

Then:

(-4).(-4) = 4^2

The simplified expression is 4^2

This is a true statement.

Answer:

True

Step-by-step explanation:

hope it helps

Answer: C. Interest

Step-by-step explanation: just took the quiz.

I stand for Interest in PITI.

Interest is the price you pay to borrow money or the cost you charge to lend money.

Interest is most often reflected as an annual percentage of the amount of a loan.

Capital, interest, taxes and insurance, known as PITI (for its acronym), are the four basic elements of a monthly mortgage payment.

Capital and interest payments are used to pay the loan. The amount covered by the property tax and home insurance can be deposited in an escrow account or escrow account, if you are required to have one or have decided to open it, in order to cover the payments of such property taxes and homeowners insurance. housing as they expire.

Hence, I stand for Interest in PITI.

Learn more about Interest click;

https://brainly.com/question/30393144

#SPJ7

Answer:

the mealworm would've crawled 0.35 meters in one minute

Step-by-step explanation:

Ok, 2.1 meters in 6 minutes, how long did it travel in 1 minute?

to get 6 minutes to 1 minute, we need to divide 6 by 6 to get to 1.

we need to divide 2.1 by 6

2.1 / 6 = 0.35

good luck my friend!

-cheesetoasty

Step-by-step explanation:

guessing

volume is always unit cubed

so in this case inches cubed or in^3

so multiply all 3 numbers

carry on is 22×14x9= 2772 in^3

leather is 18×12×8 = 1728 in^3

canvas is 18×15×10 = 2700 in^3 but the depth in ge's canvas 15" in larger than the carry on checklist

so

the leather will definitely fit

Answer:

zero

Step-by-step explanation:

Answer:

zero

Step-by-step explanation:

if the line were to be vertical then it would be undefined

positive if the line went diagonally with the line going to the top right

negative if it went from top left to bottom left  

Answer:

112.5°

Step-by-step explanation:

its the same as G, but I need to know if you have any measurements?

f=67.5 e=75  h=105

180-67.5= 112.5

since G and I are interior opposite angles then they are the same. So I equals 112.5  

Answer:

62.5%

Step-by-step explanation:

13-8=5

5/8 × 100=62.5