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3 years ago

Please help I will mark BRAINLIEST

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

5 0

Answer:

The perimeter of the semi-circle will be: 3π + 6cm

Step-by-step explanation:

The formula for the perimeter of a semi circle is given as:

= πr + 2r

where,

π = 3.142

r = radius = 3cm

Therefore, the perimeter will then be:

= πr + 2r

= (3 × π) + (2 × 3)

= 3π + 6

Therefore, the perimeter of the semi-circle will be: 3π + 6cm

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It is the last one, 1,130.4 ft^3. The volume of a cylinder equals pi (in this case 3.14) multiplied by the radius squared multiplied by the height. (3.14x6^2x10)

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4 years ago

Question 7

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3 years ago

Jose, baulus, and George are having a disagreement over interest rates. Jose says that 6 3/4% can be expressed as 6.75%. George

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Answer:

Jose and George are correct

Baulus is incorrect

Step-by-step explanation:

Given

$6\frac{3}{4}$ %

Required

Compare the above expression with

Jose: 6.75%.

George: 0.0675

Baulus: 0.0675%

The expression  $6\frac{3}{4}$ % is given as a mixed fraction;

In Jose's case, he simply converted it to decimal

Converting $6\frac{3}{4}$ % to decimal;

First, we need to convert to improper fraction

$6\frac{3}{4}$ % in improper fraction is $\frac{27}{4}$ %

Then, we divide the numerator by the denominator

$\frac{27}{4}$ % = 6.75%.

Hence, Jose is correct

In George's case, he solved further by removing the % from Jose's answer.

% means divided by 100; In other words, x% means that we divide x by 100

So, 6.75% means we divide 6.75 by 100

$\frac{6.75}{100}$ = 0.0675

Hence, George is also correct

But same can't be said of Baulus;

Baulus converted $6\frac{3}{4}$ % as 0.0675%

This means that he converted $6\frac{3}{4}$ as 0.0675 then he appended it with the percentage sign (%)

Since $6\frac{3}{4}$ is not equal to 0.0675, then we can conclude that Baulus is incorrect

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4 years ago

Sam drove 6 1/2 hours on Saturday and 8 2/3 hours on Sunday. How much longer was his drive on Sunday than on Saturday?

Schach [20]

Based on the phrase "how much longer" this is going to be a subtraction problem
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2. Multiply 2/3 by 2 (numerator and denominator) and 1/2 by 3 to get an overall denominator of 6
8 4/6 - 6 3/6
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8-6= 2
4. subtract the numerators
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3 years ago

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Y and x have a proportional relationship, and y = 15 when x = 3. What is the value of x when y = 4?

allsm [11]

Y = kx
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answer
when y = 4 , x = 4/5

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3 years ago

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Please help I will mark BRAINLIEST ​

Please help I will mark BRAINLIEST