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3 years ago

What's the slope line between (19, -16) and (-7, -15)

Mathematics

2 answers:

White raven [17]3 years ago

6 0

Answer:

-26

Step-by-step explanation:

To find the slope a line, we need to find the rise over run between two points.

$\frac{rise}{run}$ = $\frac{-7-19}{-15-(-16)}$

= $\frac{-26}{1}$

= -26

The slope is -26

Elza [17]3 years ago

4 0

Answer:

-1/26

Step-by-step explanation:

m = -16 - (-15) / 19 - (-7)

m = -1/26

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Solve the quadratic by factoring.<br> x^2-5x-31=5

torisob [31]

Answer:

$x = - 4\: or \: x = 9$

Step-by-step explanation:

make one side equal to zero:

${x}^{2} - 5x - 36 = 0$

find two factors that multiply to -36 and add to -5 (-9 & 4)

${x }^{2} - 9x + 4x - 36 = 0$

factorise

$x(x - 9) + 4(x - 9) = 0$

$(x + 4)(x - 9) = 0$

solve for x

$x = - 4 \: or \: x = 9$

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4 years ago

How many solutions are there to the system of equations graphed below if

Snezhnost [94]

D. Infinitely many because the lines will never Intersect which means there are infinitely solutions

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2 years ago

Simplify 3√8-2√12+√125

Korolek [52]

Answer:

6sqrt(2)-4sqrt(3)+5sqrt(5)

Step-by-step explanation:

7 0

3 years ago

You have $50,000 to invest (YAY!). You need $350,000 in the account to retire in 30 years. At what continuously compounded inter

Luden [163]

Answer:

You need to invest at a continuous compound interest rate of 6.701355026%

Step-by-step explanation:

The formula to use is the compound interest formula:A=P(1+r/100)^t

where A=Total amount at the end of the investment period

P=Principal amount

R=Rate of interest

T=Investment tenor/time

Now,

350,000=50000(1+r/100)^30 is what needs to be simplified to 6.701355026%

4 0

3 years ago

Given the function ƒ(x) = x^2 - 4x - 5

GREYUIT [131]

Answer:

(x+1)(x-5)

Step-by-step explanation:

(x+a)(x+b)=x²-4x-5

then a+b=-4 and a*b=-5

so a=-1 and b=5

4 0

3 years ago