Can someone please help me with math.

Can Someone Please Help Me With Math.

Answers

Answer 1

Answer:

21.c

22.b

23.c

Step-by-step explanation:


Related Questions

PLEASE HELP!!!

(64i)^1/6

a) write answer in polar form
b) write answer in standard form

Answers

9514 1404 393

Answer:

2∠15°2cos(15°) +i·2sin(15°) ≈ 1.93185 +0.517638i

Step-by-step explanation:

Using Euler's formula, the 6th root is easily found.

  (64i)^(1/6) = ((2^6)e^(iπ/2))^(1/6) = 2e^(iπ/12) = 2∠15°

  = 2(cos(15°) +i·sin(15°)) = 2·cos(15°) +i·2·sin(15°) ≈ 1.93185 +0.517638i

PLS HELPPPPP I DONT UNDERSTAND THIS

Answers

Answer:

1

Step-by-step explanation:

The slope is rise over run. (rise/run)

Since the line rises 1 and goes to the right 1, the slope is 1. (1/1 = 1)

Brainliest Please. ;)

A list is made of all possible 2-digit whole numbers that result from using only the digits 1,3,5, and 7 in both the
ones and tens place, with duplications allowed. How many whole numbers in the list are prime numbers?

A.6
B.7
C.8
D.9
E.10​

Answers

Answer:

b7 and e10

for brainly

The ordered pair (a, b) gives the location of point P on the coordinate plane. The value of b is negative. The value of a is not 0. Where could point P be located on the coordinate plane? Choose all answers that apply: Choice A Quadrant I (Choice B) Quadrant II (Choice C) Quadrant III (Choice D) Quadrant IV (Choice E) x-axis (Choice F) y-axis

Answers

Answer:

Quadrant III ( C )

Quadrant IV ( D )

Step-by-step explanation:

Ordered pair ( a, b )

gives a point P on the coordinate plane

( a, b ) = ( x, y )

given : b = negative ( y-axis )

           a ≠ 0 ( i.e. a = negative or positive ) ( x -axis )

Therefore point P is located in the : Third and fourth quadrants

Answer:

3 and 4

Step-by-step explanation:

:)

The sweatshirt is $52. What is the 9% sales tax?

Answers

The 9% sales tax would be $4.68. You would do 52 x .09 = the sale tax being 4.68

craig hiked for 7/10 mile and stopped to take pictures.Then her hiked for another 25/100 mile. How far did he hike in all

Answers

Answer:

The answer is 95/100 miles and simplified is 19/20 miles.

Step-by-step explanation:

Q=2u2 - 5
(d) Find the value of Q when u=-3

Answers

Answer:

13

Step-by-step explanation:

13 is the right answer

Answer:

Down below

Step-by-step explanation:

[tex]Q=2u^2-5\\u=-3\\Q=(2*-3)^2-5\\Q=(-6)^2-5\\Q=36-5\\Q=31[/tex]

Note: wasn't sure if it was [tex]2u^2[/tex] or 2u*2. tell me and i will change it. this also may be wrong.

Dima called her friend to tell her that she saved 30% on her new skirt at a discount store. Her friend told her that she could have gotten a better deal at a different store that was advertising a sale of One-third off all clothing. If the original price of Dima’s skirt was $54, how much more could she have saved at the store her friend suggested?

Answers

Answer: I think it's 1.80

Answer:

B

Step-by-step explanation:

i rlly need help with this somebody i will give brainlist

Answers

Answer:

the answer is 10

Step-by-step explanation:

I just puted value and calculated it's simple

what are the factors of 6 that have a sum of 7

Answers

Answer:

[tex]factor \: of \: 6 \\ is \: 6 \\ \\ then \: having \: the \: sum \: 6 + 7 = 13 \: \\ \\ \\ \\ \\ \\ hence \: 13is \: answer[/tex]

Answer:

I believe your answer is 6 and 1 because 6x1=66+1=7

Step-by-step explanation:

May I pls have a brainley

What is 2 (log Subscript 3 Baseline 8 + log Subscript 3 Baseline z) minus log Subscript 3 Baseline (3 Superscript 4 Baseline minus 7 squared) written as a single logarithm?
log Subscript 3 Baseline 2 z
log Subscript 3 Baseline 2 z squared
log Subscript 3 Baseline StartFraction z squared Over 4 EndFraction
log Subscript 3 Baseline StartStartFraction 64 z squared Over StartFraction 81 OverOver 49 EndEndFraction

Answers

Answer:

log Subscript 3 Baseline StartFraction z squared Over 4 EndFraction

Step-by-step explanation:

The single logarithmic form f the expression is [tex]log_3(\frac{9(64z^2)}{81} )[/tex]

Logarithm and indices

Given the logarithmic expression;

[tex]2(log_38+log_3z)-log_3(3^4-7^2)[/tex]

We are to write it as a single logarithm

Using the product and quotient law of logarithm;

[tex]2(log_38+log_3z)-log_3(3^4-7^2)\\=2(log_38+log_3z)-log_3(\frac{81}{49} )\\=2(log_38z)-log(\frac{81}{9})\\=log_364z^2-log(\frac{81}{9})[/tex]

Simplify the final result to have:

[tex]=log_364z^2-log(\frac{81}{9})\\=log_3(\frac{9(64z^2)}{81} )[/tex]

Hence the single logarithmic form f the expression is [tex]log_3(\frac{9(64z^2)}{81} )[/tex]

Learn more on logarithm here: https://brainly.com/question/25710806

How do I make the graph or if anyone makes the graph for me WILL GET BRAINLIEST.

SYSTEMS OF EQUATIONS)

Answers

Answer:

Part A

The required inequality is;

y = 50 - 2 × x  ≥ 20

Please find attached the graph of the inequality created with Microsoft Excel

Part B

The number of weeks she can withdraw is less than or equal to 15 weeks

Step-by-step explanation:

The given parameters are;

The amount Kate has in her savings account at the beginning of the summer = $50

The least amount she wants to have in the account at the end of the summer = $20

The amount she withdraws each weak from the account = $2

Part A

Let 'x' represent the number of weeks she can withdraw money, we have;

The required inequality that gives the number of weeks she can withdraw money is given as follows

y = 50 - 2 × x

y ≥ 20

Therefore, the inequality is;

y = 50 - 2 × x  ≥ 20

The graph of the inequality created with Microsoft Excel is attached

Part B

The number of 'x' weeks she can withdraw is;

50 - 2 × x  ≥ 20

- 2 × x  ≥ 20 - 50 = -30

x ≤  -30/(-2) = 15

The number of weeks she can withdraw is x ≤ 15 weeks.

PLZ HELP ITS DUE RN BRAINIEST TO WHOEVER RIGHT!

Answers

Answer:

The zero is 5

Step-by-step explanation:

The zeroes of f are the points where the graph f crosses the x-axis, which only occurs at x = 5.

X=5 I hope that helps in time

what is the difference between the solution you get when solving an equation and the solution you get when solving an inequality​

Answers

Answer:

If you multiply or divide both sides of an equation by the same negative number, the equation remains the same, but If you multiply or divide both sides of an inequality by the same negative number, the inequality reverses. !!!!!

Step-by-step explanation:

Answer:

The only difference is: If you multiply or divide both sides of an equation by the same negative number, the equation remains the same, but If you multiply or divide both sides of an inequality by the same negative number, the inequality reverses.

Step-by-step explanation:

I really hope this help and im sorry if it doesnt. Best of luck on your assignment

June runs a little slower than Carlos. She ran 1/4 of a mile in 3 minutes. How long will it take her
to run a full mile?

Answers

Answer:

12 mintes

Step-by-step explanation:

u add

Below are two parallel lines with a third line intersecting them.

Answers

Answer:

The line intersecting is a transversal and x is 44 degrees.

Hope it helps!!!

I need help with these questions ‍♂️ please ?

Answers

cba

Step-by-step explanation:

first first one to see second one is b last one is a

x-2y = 1
xc²+zxcy - 2x - 4y=0​

Answers

Answer:

hope it's help you

good afternoon

What is the scale factor of the transformation?

Image is above!

Answers

Answer:

2x

Step-by-step explanation:

If you double all the distances of the BLACK shape, it becomes the BLUE shape.

Answer:

2

Step-by-step explanation:

Find the inverse for the following function.

f(x) = 2x^2 + 20x +47

Answers

Report this clown who put the first answer he’s trying to get your ip

Megan's morning run follows a triangular path. Two legs are equal and the third leg is 4 miles longer
han each of the other legs. If the total ride is 22 miles, what is the length of the longest leg?

Answers

Answer:56544

Step-by-step explanation:

If the surface areas of two spheres are in ratio 16:9, then their volumes will be in the ratio​

Answers

Answer:

64 : 27

Step-by-step explanation:

If linear ratio is a : b , then

area ratio = a² : b²

volume ratio = a³ : b³

Given area ratio = 16 : 9 , then

linear ratio = [tex]\sqrt{16}[/tex] : [tex]\sqrt{9}[/tex] = 4 : 3

volume ratio = 4³ : 3³ = 64 : 27

When an item is marked down 10% , why does it make sense to multiply the price by 0.9?

Answers

Answer:

Since there is 10% off of the price, the new cost is 90% of the original. So we just multiply the price by 0.9

Find the linear equation whose graph is the straight line with the given properties through ( 1,-8) and (-1,-1)

Answers

Answer: y=-7/2x-9/2

Explanation: solving for y=mx+b (linear equation)

m(slope)=y2-y1/x2-x1
(x1= 1, y1=-8),(x2=-1,y2=-1)
M=-1-(-8)/-1-1=7/-2= -7/2

To find the b(y-intercept),use one of the coordinates and plug it into y=mx+b, I will use (x=1,y=-8): -8=-7/2(1)+b

-8/1=-7/2(1)+b/1 -divide the 1 to cancel it and bring it to the other side.

-8+7/2=-7/2+7/2+b -add the 7/2 to cancel it and bring it to the other side.

-9/2=b -b is now isolated and is solved.

So, that’s how you get y=-7/2x-9/2

The equation of a line for the given coordinates is 7x+2y+9=0.

The given coordinates are (1, -8) and (-1, -1).

We need to find the linear equation whose graph is a straight line.

What is the slope of a line?

The slope of a line is defined as the change in the y coordinate with respect to the change in the x coordinate of that line. The slope of a line=m=(y2-y1)/(x2-x1).

Now, slope of the line=(-1-(-8))/(-1-2)

=7/(-2)

=-7/2

Now, put m=-7/2 and (-1, -1) in the equation y=mx+c.

So, -1=(-7/2)(-1)+c

⇒-1-7/2=c

⇒c=-9/2

Then the equation of the line=y=-7x/2-9/2

⇒2y=-7x-9

⇒7x+2y+9=0

Therefore, the equation of a line for the given coordinates is 7x+2y+9=0.

To learn more about the slope visit:

https://brainly.com/question/2491620.

#SPJ2

hlppppppp plzzzzzzzzzzzzzz

Answers

Answer and Step-by-step explanation:

All we have to do is plug in -7 for h in the expression.

3 + -(-7) - 4

The negatives cancel out to become positive.

3 + 7 - 4

10 - 4

6

The answer to the expression is 6.

#teamtrees #PAW (Plant And Water)

The radius of a circle is 10 cm. Find its circumference in terms of pi

Answers

Answer:

20 pi is the correct answer

Can someone pls helpppp ASAP this is due in 25 min :(

For the right triangles below, find the values of the side lengths d and a.
Round your answers to the nearest tenth.

Answers

Answer:

a = 1.4 and d = 6.9

Step-by-step explanation:

To get the value of d and a, we will use the SOH CAH TOA identity

For the first tringle;

Opposite = d ((opposite angle 60 degrees)

Adjacent = 4

Tan theta = opp/adj

Tan 60 = d/4

d  = 4tan60

d = 4(1.732)

d = 6.9

For the second triangle;

Opposite = a

Hypotenuse = 2

Since sin theta = opp/hyp

Sin45 = a/2

a = 2sin45

a = 2(0.7071)

a = 1.4

Hence a = 1.4 and d = 6.9

Is the relationship linear, exponential, or neither ?

Answers

Answer:

Linear

Step-by-step explanation:

Answer:

Linear, there is a constant rate of change

Step-by-step explanation:

A student earned grades of 78, 72, 74, and 88 on her four regular tests. She earned a grade of 79 on the final exam and 88 on her class projects. Her combined homework grade was 89. The four regular
tests count for 40% of the final grade, the final exam counts for 20%, the project counts for 10%, and homework counts for 30% What is her weighted mean grade? Round to one decimal place.
O A. 82.5
OB. 71.0
O C. 63.6
OD. 81.5

Answers

Answer:

A: 82.5

Step-by-step explanation:

Average score of the 4 regular tests = (78 + 72 + 74 + 88)/4 = 78

We are told;

- the regular tests account for 40% of the final grade.

- final exam counts for 20%

- project counts for 10%

- homework counts for 30%

Thus;

weighted mean grade = (40% × 78) + (20% × 79) + (10% × 88) + (30% × 89) = 82.5

GIVING BRAINLIEST, PLS HELP!!!!! :((

Write a statement that correctly describes the relationship between these two sequences: 6, 7, 8, 9, 10, and 18, 21, 24, 27, 30.

Answers

Step-by-step explanation:

1 Sequence

The numbers are in a right order but starting from 6 and ending at 10....

2 sequence

Numbers are from table of 3 and starting from 3×7 and ending up at 3×10

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