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4 years ago

Can someone help me with question 1-5

Mathematics

2 answers:

seraphim [82]4 years ago

7 0

The answer would be B

tigry1 [53]4 years ago

6 0

The slope m =(5-1)/(4--1) = 4/5
The point slope equation is:
y - y1 = m(x-x1)
y-1 = (4/5)(x+1)
y = .8x + 1.8
Distance is SQRT(4^2 + 5^2) = SQRT (41)

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Solve the equation x^2+17x+12=-3x^2 to the nearest tenth.

mote1985 [20]

Answer:

$x=-\frac{17}{8}+\frac{\sqrt{97} }{8}$ or $x=-\frac{17}{8}-\frac{\sqrt{97} }{8}$

Step-by-step explanation:

$x^2+17x+12=-3x^2$

Add $3x^2$ on both sides.

$x^2+17x+12+3x^2=-3x^2+3x^2$

$x^2+17x+12+3x^2=0$

Combine like terms;

$4x^2+17x+12=0$

Use the quadratic formula;

a=4

b=17

c=12

$x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}$

$x=\frac{-(17)\frac{+}{}\sqrt{(17)^2-4(4)(12)} }{2(4)}$

$x=\frac{-17\frac{+}{}\sqrt{289-192} }{8}$

$x=\frac{-17\frac{+}{}\sqrt{97} }{8}$

$x=-\frac{17}{8}+\frac{\sqrt{97} }{8}$ or $x=-\frac{17}{8}-\frac{\sqrt{97} }{8}$

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3 years ago

HELP ASAP!!! Find the missing value. V=758.16 L=13 W=? H=7.2

ella [17]

Answer: 8.1

Step-by-step explanation:

758.16 ÷ 13 =58.32

58.32 ÷ 7.2 = 8.1

Check: 8.1 ×13 ×7.2=758.16

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3 years ago

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Yakvenalex [24]

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