3 years ago

What is 4x^2+x-1=0 rounded to the nearest hundredth

Mathematics

1 answer:

Anit [1.1K]3 years ago

6 0

Answer:

= −1 ± 17 √8

Step-by-step explanation:

i think, im sorry if this doesn't help...

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Jen butler has been pricing speed-pass train fares for a round trip to New York three adults and four children must pay $118 two

vitfil [10]

Answer:

Adult’s ticket = $ 18

Child’s ticket = $ 16

Step-by-step explanation:

Adults: x

Children: y

(3x + 4y = 118) * (2) = 6x + 8y = 236

(2x + 3y = 84) * (-3) = -6x - 9y = -252

Add both equations:

-y = - 16

y = 16

3x + 4(16) = 118

3X + 64 = 118

3X = 118 - 64

X = 54/3=18

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3 years ago

Pls answer for points

Sever21 [200]

Answer:

Step-by-step explanation:

5/6 - (2/5 + 1/3)

25/30 - (12/30 + 10/30)

25/30 - 22/30 = 3/30 = 1/10

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3 years ago

If ON=8x*8, LM=7x+4, NM=x-5, and OL=3y-6, find the values of x and y for which LMNO must be a parallelogram. The diagram is not

lana66690 [7]

ON = 8x • 8
LM = 7x + 4
NM = x - 5
OL = 3y - 6

OL is congruent & parallel to NM
LM is congruent & parallel to ON

So,
$8x \times 8 = 7x + 4$
Simplify
$64x = 7x + 4$
subtract 7x from both sides
$57x = 4$
divide 57 from both sides
$x = \frac{4}{57}$
Substitute x into equations
$8x \times 8 = 7x + 4 = 4 \frac{28}{57}$

$3y - 6 = x - 5$
$3y - 6 = 4 \frac{28}{57} - 5$
$3y - 6 = - \frac{28}{57}$
NM & OL = -28/57
ON & LM = 4 + (28/57)

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3 years ago

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Sam ran 63,756 feet in 70 minutes. What is Sam's rate in miles per hour? ( there are 5,280 feet in one mile.)

umka21 [38]

Simply convert first feets into miles
Given is 5280 feets=1 miles

63756 /5280=12.075 miles

70 minutes = 1.16666= 1.17 hrs

rate is 12.075 miles/1.17 hrs

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3 years ago

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Priya is riding at a constant speed of 12 miles per hour. Write an equation that shows how many miles Priya has gone after Han h

Finger [1]

Answer:

t=x+12

Step-by-step explanation:

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3 years ago

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