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3 years ago

Find the slope passing through to two points -5, 2 and 7,-1 PLEASE HURRY

Mathematics

1 answer:

Vesnalui [34]3 years ago

7 0

Answer:

-1/4

Step-by-step explanation:

The slope is found by

m = (y2-y1)/(x2-x1)

= (-1-2)/(7- -5)

= (-1-2)/(7+5)

= -3/12

= -1/4

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Are the graphs of 6 <br>y = -2x + 4 and y = 6x - 4 parallel perpendicular or neither

timurjin [86]

1st slope is -1/3. 2nd slope is 6

slope is same in parallel lines so not parallel

slopes are negative reciprocals in perpendicular lines so they aren't perpendicular

they are called oblique

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4 years ago

A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the

makkiz [27]

$f(t)=h=-16t^2+20t+6

$

a=-16, b=20, c =6

Δ= $b^2-4ac=20^2-4*(-16)*6=400+384=784$

$\sqrt{Δ}=\sqrt{784}=28$

max:

$p=-\frac{b}{2a}=-\frac{20}{-32}=\frac{20}{32}=\frac{5}{8}$

max heigh: $h=-16(\frac{5}{8})^2+20*\frac{5}{8}+6=-16\frac{25}{64}+\frac{100}{8}+6$

$h=-\frac{25}{4}+\frac{50}{4}+6=\frac{-25+50+24}{4}=\frac{49}{4}$

$h=\frac{49}{4}$ at $t=\frac{5}{8}s$

will fall down at t:

$t=\frac{-20-28}{-32}=\frac{-48}{-32}=\frac{3}{2}=1.5$

$t=1.5s$

8 0

3 years ago

5z ^ 3 - 2z ^ 4 - 9z ^ 2 + z What is the degree of the polynomial ?

Mariulka [41]

Answer:

Step-by-step explanation:

For any polynomial, we can determine the degree by finding the variable with the largest exponent. For the given polynomial:

$5z^{3} - 2z^{4} -9z^{2} + z$

we can see that $-2z^{4}$ contains the variable with the highest exponent, 4, so the degree of this polynomial is 4.

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3 years ago

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assume that a 3 month CD purchased for $2000 pay a simple interest at an annual rate of 10%. How much total interest does it ear

algol [13]

CD = certificate of deposit (an investment)
Interest rate, i = 10% per annum (simple interest)
Principal, P = $2000 (present value)
Period, T = 3 months = 0.25 year

Simple interest formula
Interest earned = Pit
=2000*0.10*0.25
=$50

Balance at maturity (amount that investor gets after three months)
=$2000+$50
=$2050

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4 years ago

Converting 8½% for decimal

Lana71 [14]

Answer:

0.085

Step-by-step explanation:

We know that 1/2=0.5. And to convert from percent to decimal you have to divide by 100.

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2 years ago

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