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3 years ago

Complete the problems. (From Example 2)

Mathematics

1 answer:

Zarrin [17]3 years ago

7 0

Answer:

Compound interest is $7,037,339.2

Step-by-step explanation:

${ \boxed{ \bf{A=P(1+ \frac{r}{100} ) {}^{n} }}}$

substitute:

${ \sf{ = 50000(1 + \frac{6.4}{100}) {}^{10} }} \\ \\ = { \sf{50000(1.64) {}^{10} }} \\ \\ { = \sf{7037339.2}}$

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X 38° 750 x= - degrees

Pachacha [2.7K]

It's pretty simple
Given: A = 38
B = 75
Solution:
The sum of all angles of a triangle = 180
So,
A + B + C = 180
38 + 75 + C = 180
C = 180 - 113
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3 years ago

find the scale factor and ratio of perimeters for a pair of similar octagons with areas 49 ft^2 and 64 ft^2

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Answer:

scale factor: 1.16

perimeters: 21.84 ft and 25.36 ft

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3 years ago

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To pay for a sofa, Maddie made a payment of 64 dollars each month for one year. How much did the sofa cost ?

mario62 [17]

So you need to multiply 64 times 12 and she has to pay $768

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4 years ago

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How many solutions are there to the equation below? 12x + 32 = 12X-7

Greeley [361]

Answer: no solutions

Step-by-step explanation:

12x+32=12x-7

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3 years ago

Liliana is making a vase with a circular base. She wants the area of the base to be between 135 cm2 and 155 cm2. Which circle co

Umnica [9.8K]

Answer:

(b) Circle C is shown. Line segment A C is a radius with length 7 centimeters.

Step-by-step explanation:

Given

$Minimum\ Area = 135cm^2$

$Maximum\ Area = 155cm^2$

$\pi = 3.14$

Required

Which circle could she use

To do this, we simply calculate the areas of all the given circles

The area of a circle is:

$Area = \pi r^2$

Where

$r = radius$

$a.\ r = 6cm$

The area is calculated as thus:

$Area = \pi r^2$

$Area = 3.14 * (6cm)^2$

$Area = 3.14 * 36cm^2$

$Area = 114.04cm^2$

$b.\ r = 7cm$

The area is calculated as thus:

$Area = \pi r^2$

$Area = 3.14 * (7cm)^2$

$Area = 3.14 * 49cm^2$

$Area = 153.86cm^2$

$c.\ r = 8cm$

The area is calculated as thus:

$Area = \pi r^2$

$Area = 3.14 * (8cm)^2$

$Area = 3.14 * 64cm^2$

$Area = 200.96cm^2$

$d.\ r = 9cm$

The area is calculated as thus:

$Area = \pi r^2$

$Area = 3.14 * (9cm)^2$

$Area = 3.14 * 81cm^2$

$Area = 254.34cm^2$

From the calculations above; only the circle in option (b) has an area within the required range of 135 to 155cm^2

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3 years ago

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