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Aleks [24]
2 years ago
15

The driveway of the Santiagos' new home is to be bounded by semicircle arcs as shown. The distance from X to Y is 100 ft. The co

ncrete driveway is 10 ft wide and 1/3 fit thick. Using 3.14 as an approximation for pi, how many cubic feet of concrete are needed to build the driveway? (Round your answer to the nearest cubic foot.)
A. 471 ft^3
B. 942 ft^3
C. 1060ft^3
D. 1308 ft^3
E. 1884 ft^3
Mathematics
1 answer:
TiliK225 [7]2 years ago
7 0

Answer:

b

Step-by-step explanation:

b

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Camilo compró un auto usado en $6,000.000y aceptó pagar $1,000.000 al contado y $1,000.000 al mes con interés del 6% anual sobre
Korolek [52]

Answer:

El pago total que hará Camilo es $6,150,000

Step-by-step explanation:

La cantidad que Camilo compró el auto usado = $6,000,000

La cantidad que Camilo acordó pagar en efectivo = $1,000,000

La cantidad que pagará Camilo en un mes = $1,000,000

El interés sobre el saldo impago = 6%

Por lo tanto, tenemos;

El interés sobre el saldo en un año = 6/100 × 5,000,000 = 300,000

El interés por mes = 300.000 / 12 = 25.000

La cantidad de meses que Camilo paga el saldo de 5,000,000 a 1,000,000 por mes = 5,000,000 / 1,000,000 mes = 5 meses

El momento en que paga el saldo restante = El sexto mes

La cantidad de interés pagado en los seis meses = 25,000 × 6 = 150,000

El pago total que hará Camilo, A = 6,000,000 + 150,000 = 6,150,000

El pago total que hará Camilo, A = $6,150,000

8 0
2 years ago
X^2+15x=-45 solve by factoring
Julli [10]

1 Move all terms to one side.

{x}^{2}+15x+45=0

x

2

+15x+45=0

2 Use the Quadratic Formula.

x=\frac{-15+3\sqrt{5}}{2},\frac{-15-3\sqrt{5}}{2}

x=

2

−15+3

5

,

2

−15−3

5

3 Simplify solutions.

x=-\frac{3(5-\sqrt{5})}{2},-\frac{3(5+\sqrt{5})}{2}

x=−

2

3(5−

5

)

,−

2

3(5+

5

)

6 0
3 years ago
Read 2 more answers
Which theorem or postulate proves the two triangles are similar?
Papessa [141]

Answer:

sss i think

Step-by-step explanation:

uh im not 100% sure

3 0
3 years ago
Write an equation of the line that passes through (1,2) and is perpendicular to the line y= 1/3x+4
zvonat [6]

Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

For lines to be perpendicular, their slopes have to be the negative reciprocal of each other. (Basically flip the sign +/- and the fraction(switch the numerator and the denominator))

For example:

Slope = 2 or \frac{2}{1}

Perpendicular line's slope = -\frac{1}{2}   (flip the sign from + to -, and flip the fraction)

Slope = -\frac{3}{4}

Perpendicular line's slope = \frac{4}{3}  (flip the sign from - to +, and flip the fraction)

y = 1/3x + 4        The slope is 1/3, so the perpendicular line's slope is -\frac{3}{1} or -3.

Now that you know the slope, substitute/plug it into the equation:

y = mx + b

y = -3x + b       To find b, plug in the point (1, 2) into the equation, then isolate/get the variable "b" by itself

2= -3(1) + b     Add 3 on both sides to get "b" by itself

2 + 3 = -3 + 3 + b

5 = b

y = -3x + 5

5 0
3 years ago
What are the roots of x in the equation −4−14x=x+5 ?
kow [346]
First you would subtract x from both sides to move all the x's to one side Then you would add 4 to both side to move all the non x's to one side Lastly divide by negative 15 to have x by itself 9/-15 =-.6 So x as has root at x=-0.6
4 0
3 years ago
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