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3 years ago

Can someone please help

Mathematics

2 answers:

Elis [28]3 years ago

6 0

Answer:

880 minutes

Step-by-step explanation:

cost = 0.05(per minute) + basic fee

y = 0.05x + 15

59 = 0.05x + 15

subtract 15

44 = 0.05x

divide by 0.05

x = 880

madam [21]3 years ago

5 0

Answer:

880 phone calls.

Step-by-step explanation:

His phone bill was 59 dollars. The phone company charged him 15 dollars for a basic fee, so that is $59-$15 which equals $44.

Since every call costs $0.05, you need to do $44 divided by $0.05 to get the amount of phone calls he did.

$44 divided by $0.05= 880, so Joe made 880 phone calls.

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NO LINKS!!!! Find the equation of the circle below

inysia [295]

Answer:

$(x+3)^2+(y-2)^2=9$

Step-by-step explanation:

Equation of a circle

$(x-a)^2+(y-b)^2=r^2$

where:

(a, b) is the center
r is the radius

From inspection of the diagram, the center of the circle appears to be at point (-3, 2), although this is not very clear. Therefore, a = -3 and b = 2.

Substitute these values into the general form of the equation of a circle:

$\implies (x-(-3))^2+(y-2)^2=r^2$

$\implies (x+3)^2+(y-2)^2=r^2$

Again, from inspection of the diagram, the maximum vertical point of the circle appears to be at y = 5. Therefore, to calculate the radius, subtract the y-value of the center point from the y-value of the maximum vertical point:

⇒ radius (r) = 5 - 2 = 3

Substitute the found value of r into the equation:

$\implies (x+3)^2+(y-2)^2=3^2$

Therefore, the final equation of the given circle is:

$\implies (x+3)^2+(y-2)^2=9$

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2 years ago

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The vertex angle of an isosceles triangle measure 40.whats the measure of the base angle?

Eddi Din [679]

I don't know if my answer is completely correct, but I think it's 100. All triangles add up to 180, and an isosceles triangle has 2 equal sides. 40 would be the 2 sides, and 180 subtracted from 80 equals 100.

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3 years ago

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If d = 390 mi, and r = 60 mi/h. what is the value of time (t)?

Jobisdone [24]

D = 390mi
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(t) = 6.5 h

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3 years ago

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viva [34]

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