Mr. Lopez, Mrs. Manuel, Mrs. Manker and Mrs. Vo come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Mr. Lopez can cross the bridge in 1 minute,Mrs. Manker in 2 minutes, Mrs. Manuel in 5 minutes, and Mrs. Vo in 8 minutes. When two people cross the bridge together, they must move at the slower person's pace. The question is, can they all get across the bridge if the torch lasts only 15 minutes?[2]

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How do you solve, 7/9+1/2-3/2+2/9 ?

Answers

$(7)/(9)+ (1)/(2)-(3)/(2)+(2)/(9)=\n \ntheir \ lcd \ is \ 18\n \n = (14)/(18)+ (9)/(18)-(27)/(18)+(4)/(18)=(14+9-27+4)/(18)= 0$

If u add them all u will get 0

Plssssssss help me

-6(3-3a)-8(6a+5)=32

Answers

$-6(3-3a)-8(6a+5)=32 \n \n -18+18a-48a-40=32 \n \n -30a-58=32 \n \n -30a=90 \n \n \boxed{a=-3}$

Simplify (x^2+5x+1)(x^2+x+3)

Answers

It can be simplified as follows:

x^4 + x^3 + 3x^2 + 5x^3 + 5x^2 + 3

Now, we combine the like terms, so:

x^4 + 6x^3 + 8x^2 + 3

What is 42 percent of 85000

Answers

35700 (updated)how to work it (calculator):85000×42%=35700by hand:85000×.42=35700

42% of 85000=35700 ....

The standard length of apencil is 19 cm long.
What is the approximate
length of a pencil in
inches?

Answers

Answer: 7.48 in

Step-by-step explanation:

Answer:

7.5 in

Step-by-step explanation:

The Golden Gate, located in San Francisco, California , is the tallest bridge in the world, with its tower extending 746 feet above the water and the floor of the bridge extending 220 feet above water. Notice that the supporting cables of the Golden Gate Bridge approximate the shape of a parabola. This parabola can be modeled by the quadratic function y = 0.00012x2 + 6, where x represents the distance form the axis of symmetry and y represents the height of the cables. The related quadratic equation is 0.00012x2 +6 = 0. Calculate the value of the discriminant

Answers

The choices possible are:
a. -0.00056
b. -0.00288
c. -0.00126
d. -0.00078

The discriminant formula for a quadratic function is: ax^2+bx+c,b^2−4ac, where a=0.00012, b=0, and c=6

Substituting these values and solving the given discriminant formula, the value of the discriminant is therefore B. -0.00288.

The general form of a quadratic function is:

ax^2+bx+c,

and the discriminant formula is expressed as:

b^2−4ac,

where for this equation the values of the coefficients are:

a=0.00012, b=0, and c=6

Substituting these values to the discriminant formula will yield to a value of -0.00288.

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0.285 to the nearest tenth

Is 7 divided by 8 equal to, greater then, or less then 3 divided by 4

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Find the x- and y-intercepts of the graph of 7x + y = 30. State each answer as an integer or an improper fraction in simplest form.