3 years ago

Which angle is an acute angle?

Mathematics

2 answers:

larisa [96]3 years ago

4 0

there is no acute angle.......

kirill [66]3 years ago

3 0

Answer:

angle CPB is an acute angle cause it's measure is less than 90°

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Suppose Set B contains 60 elements and the total number elements in either Set A or Set B is 82. If the Sets A and B have 12 ele

lidiya [134]

Answer:

34 elements

Step-by-step explanation:

Set B = 60 elements

Set A = x elements

A∩B = 12

A∪B = 82

x = (82+12 - 60) = 34 elements

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3 years ago

Darrell earned a total of $10 by selling 8 cups of lemonade. How many cups of lemonade does darrell need to sell in all to earn

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How do basic facts and patterns help multiply a number by a multiple of 10

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3 years ago

A sum of money invested at the compound interest payable yearly has interest in

jeka94

Answer:

49% and 30% respectively

Step-by-step explanation:

Step one:

Given data

Principal = Rs. 4,200

Final Amount= Rs. 9282 respectively

time = 2 years and

time = 4 years

Required

The rate of interest for 2 and 4 years

Step two:

the compound interest formula is

A= P(1+r)^t

for 2 years

Substitute

$9282= 4200(1+r)^2\\\\9282/4200= (1+r)^2$

$1+r= \sqrt{\frac{9282}{ 4200} }\\\\1+r= \sqrt{2.21} \\\\1+r= 1.49\\\\r=1.49-1\\\\r= 0.49\\\\$

the rate is 49%

For 4 years we have

$9282= 4200(1+r)^4\\\\9282/4200= (1+r)^4$

$1+r= \sqrt[4]{\frac{9282}{4500} } \\\\1+r=\sqrt[4]{2.21} \\\\1+r= 1.30\\\\r=1.30-1\\\\r= 0.30\\\\$

the rate is 30%

6 0

3 years ago