Algebraically, find the roots of x² - 4x - 5=0,​

Answer:

the answer is 10

Step-by-step explanation:

I just puted value and calculated it's simple

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]

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

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)

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.

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.

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

Answer: I think it's 1.80

Answer:

B

Step-by-step explanation:

Answer:

Linear

Step-by-step explanation:

Answer:

Linear, there is a constant rate of change

Step-by-step explanation:

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:

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. ;)

Answer:

-9 is warmer

Step-by-step explanation:

because the lower the number the colder it is and the higher it is then the hotter it is

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

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:

:)

9514 1404 393

Answer:

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

Answer:

12 mintes

Step-by-step explanation:

u add

Answer:56544

Step-by-step explanation:

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

cba

Step-by-step explanation:

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

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

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

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.

Answer:

20 pi is the correct answer

Answer:

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

Step-by-step explanation:

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.

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

Answer:

hope it's help you

good afternoon

Answer:

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

Hope it helps!!!

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

Answer:

x = 6[tex]\sqrt{2}[/tex] = 8.485

Step-by-step explanation:

In a 45-45-90 triangle, the hypotenuse is [tex]\sqrt{2}[/tex] times the length of a leg.

So, if you are given the hypotenuse, then divide its length by [tex]\sqrt{2}[/tex]

x = 12/[tex]\sqrt{2}[/tex] = 12[tex]\sqrt{2}[/tex]/2 = 6[tex]\sqrt{2}[/tex] = 8.485