4 years ago

2y=x-4 find the slope and y-intercept

Mathematics

1 answer:

8090 [49]4 years ago

7 0

Answer:

Slope is 1/2

Y- intercept is -2

Step-by-step explanation:

Re-write the equation so that u have y = x/2 -4/2

Then simplify into y = 1/2x -2

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Classify each pair of numbered angles as corresponding, alternate interior, alternate exterior, or none of these.

ella [17]

all are corespondent to each lateral line

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3 years ago

Find a1, for the given geometric series. Round to the nearest hundredth if necessary. Sn= 86,830, r= 2.2, n=4

larisa86 [58]

Answer:

4,646.30

Step-by-step explanation:

The sum of n terms of geometric sequence can be calculated using formula

$S_n=\dfrac{a_1(1-r^n)}{1-r}$

In your case,

$S_n=86,830\\ \\r=2.2\\ \\n=4\\ \\a_1=?$

Substitute into the formula:

$S_4=\dfrac{a_1(1-2.2^4)}{1-2.2}\\ \\86,830=\dfrac{a_1(1-23.4256)}{-1.2}\\ \\-104,196=a_1(-22.4256)\\ \\22.4256a_1=104,196\\ \\a_1=\dfrac{104,196}{22.4256}\approx 4,646.30$

5 0

4 years ago

State the number of possible real zeros and turning points of f(x) = x7 – 6x6 + 8x5. Then determine all of the real zeros by fac

Rudiy27

Answer:

steps below

Step-by-step explanation:

f(x) = x⁷ – 6x⁶ + 8x⁵

f'(x) = 7x⁶ - 36x⁵ + 40x⁴

= x⁴ (7x² - 36x + 40) ... (1)

Critical point (x,y): x = 0 , x = (36 ± √(-36)²-4*7*40) / (2*7) = (18±2√11) / 7

x = 0 or x = 3.5 or x = 1.6

plug into (1): y = 0 , y = -394.3 , y = 10.1

extreme : maximum (1.6 , 10.1) minimum (3.5 , -394.3) ... turning points

x⁷ – 6x⁶ + 8x⁵ = x⁵ (x² - 6x + 8) = x⁵ (x-2) (x-4) =0

real zeros: x = 0, x=2, x=4

3 0

3 years ago

REALLY URGENT PLZ

Alex17521 [72]

1.0.583333333332. 0.043.1

4 0

3 years ago

Cory earns $20 for every lawn he mows and $9 for every hedge he trims. He uses the expression 20x + 9y to keep track of his earn

Nina [5.8K]

Part A: The coefficients are 20 and 9 and variables in the expression are x and y.
Part B: The number of terms are two in the expression, they are 20x and 9y,as they are separated by an addition sign.
Part C: 9y term in the expression shows the total earned from trimming hedges.

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4 years ago