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2 years ago

25 Uma conta de gás, no valor de R$ 48,00, com

Mathematics

1 answer:

melisa1 [442]2 years ago

6 0

Answer:

R$49.02

R$49.09

Step-by-step explanation:

Por não pagar a conta em dia, o valor de 2% de juros foi adicionado, o novo valor base passa a ser:

$V = 1.02*48\\V=R\$48.96$

O valor a ser pago n dias após o dia 13 de abril é dado por:

$P=48.96*(1+\frac{0.033}{100} )^n$

No dia 17 de abril, n =4 e o valor a ser pago é:

$P=48.96*(1+\frac{0.033}{100} )^4\\P=R\$49.02$

Caso n =8, o valor a ser pago seria:

$P=48.96*(1+\frac{0.033}{100} )^8\\P=R\$49.09$

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Step-by-step explanation:

A chord is a segment with endpoints on the circle.

A tangent line is a line that touches a circle at only one point.

A diameter is a chord that passes through the center of the circle.

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Therefore, AB is a secant line.

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2 years ago

The distance between points (X7, Yı) and (4, 8) is the square root of (x7 - 8)2 +

serious [3.7K]

Answer:

B. False

Step-by-step explanation:

Given

$Points: (x_7 - y_i),(4,8)$

Required

Is the distance between them $\sqrt{(x_7 - 8)^2 + (y_1 - 4)^2}$

Given that there are two points, the distance between them is calculated using

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In this case;

$(x_1,y_1)= (x_7 - y_i)\\(x_2,y_2) =(4,8)$

Substitute these in the given formula

Distance = $\sqrt{(4- x_7)^2 + (8 - y_1)^2}$

Comparing this with the given formula, both are not the same;

Hence, the formula is false and the correct formula is of the form $\sqrt{(4- x_7)^2 + (8 - y_1)^2}$

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2 years ago

Triangle A is a scaled version of triangle B. The dimensions of triangle B are twice the dimensions of triangle A. The area of t

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24.

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2 years ago

Can someone help me plz

WINSTONCH [101]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

If a=2, b=3 and c=4 then find the numerical value of a2+2abc+b2+c2

qaws [65]

a=2 b=3 and c=4. then,

a2+2abc+b2+c2

a2+2abc+b2+c2= 2^2+2×2×3×4+3^2+4^2

(replace value of a, b, c by2,3,4 respectively tgen solve)

= 4+48+9+16

= 77………………

Therefore, 77 is correct answer.

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2 years ago