Hi please could you answer the single question in the attachment.Please show full working out.

Thanks.

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Answer 1

Answer: find volume of smal and big cone big-small=frustum V=1/3(hpir^2) 30=diameter of bic cone d/2=r 15=radius of big cone wat is radius of smal cone? height:radius=height:raidus 40:15=20:x x=7.5 small radius=7.5 now we have small volume= (1/3)20pi7.5^2= (1/3)20pi57.25= (1/3)1145pi= 381.66666666pi big volume= (1/3)40pi15^2= (1/3)40pi225 (1/3)9000pi 3000pi minus big-small= 3000pi-381.6666666pi= 2618.3333333333pi aprox pi=3.141592 8225.33333333333 8225.33 cm^3

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At present Asha's age (in years) is two more than the square of her daughter Nisha's age (in years). When Nisha grows to her mother's present age, Asha's age would be one year less than 10 times the present age of Nisha. Find the present age of Asha and Nisha

Answers

Answer:

Asha's present age is 27 years and Nisha's present age is 5 years.

Step-by-step explanation:

Let the present age of Nisha be $x$ years.

As per question, Asha's present age is 2 more than the square of Nisha's age.

$\therefore$ Asha's present age = $x^2+2$

Now, Nisha will reach her mother's age after $x^2+2-x$ years.

Therefore, age of Asha after $x^2+2-x$ years will be = $x^2+2+x^2+2-x=2x^2-x+4$

Now, as per question,

$2x^2-x+4=10x-1\n2x^2-x-10x+4+1=0\n2x^2-11x+5=0\n2x^2-x-10x+5=0\nx(2x-1)-5(2x-1)=0\n(2x-1)(x-5)=0\nx=(1)/(2)\ or\ x=5$

As age can't be in fraction, we consider the present age of Nisha as 5 years. So, Asha's present age is $x^2+2=5^2+2=25+2=27$ years.

Therefore, Asha's present age is 27 years and Nisha's present age is 5 years.

eight students are painting 2 boards for a project . the students want to divide the work equally. how much of the board should each student paint?

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Each student should do 1/4 of one board or 1/8 of both boards. This is because 8÷2 is 4, which means 4 people need to work together on one board.

each student paint about 4 inches or less

Calvin and Mike do sit-ups when they work out. They start with 64 sit-ups for the first set and do half as many each subsequent set. A. What representation can you use to show the relationship between the set number and the number of sit-ups?

Answers

To represent the relationship between the set number and the number of sit-ups, you can use a simple verbal description: "The number of sit-ups in each set is half of the number in the previous set". The relationship between the set number and the number of sit-ups can be represented as a geometric sequence, where each set has half the number of sit-ups as the previous set. This can be calculated using the formula for a geometric sequence.

To represent the relationship between the set number and the number of sit-ups that Calvin and Mike do, you can use a mathematical expression or formula. In this case, the number of sit-ups in each set decreases by half compared to the previous set. You can express this relationship using an exponential decay formula:

$S_(n) = S_(1) . ((1)/(2)) ^(1-n)$

Where:

$S_(n)$ represents the number of sit-ups in the nth set.

$S_(1)$ is the initial number of sit-ups in the first set (which is 64 in this case).

$(1)/(2)$ represents the reduction factor, as each subsequent set has half as many sit-ups.

n is the set number.

Using this formula, you can easily calculate the number of sit-ups in any set. For example, to find the number of sit-ups in the 4th set (n = 4), you would substitute n = 4 into the formula:

$S_(4) = 64 . ((1)/(2)) ^(4-1) = 64.((1)/(2)) ^(3) = 64 .(1)/(8) =8$

So, in the 4th set, Calvin and Mike do 8 sit-ups. This formula allows you to determine the number of sit-ups for any set without manually calculating each time.

Learn more about Geometric Sequence here:

brainly.com/question/33243139

#SPJ3

Answer:

64/2=32 32/2=16 16/2=8 8/2=4 4/2=2 2/2=1

Step-by-step explanation:

if you were to use a in and out chart you can you can set the in as the starting amount (64) and make the out/formula ÷2

Taylor wants to make 2 1/2 times the quantity given in a recipe. The recipe calls for 1 3/4 cups of flour. How much flour will Taylor need?

Answers

$2(1)/(2)=2.5$

$1(3)/(4)=1.75$

Let's start...

a recipe say that we have to use 1.75 cups of flour, then 2.5 recipe we have to use $1.75*2.5$ cups of flour, it's iqual 4.375 cup of flour.

$1\frac34 \cdot 2\frac12=\frac74 \cdot \frac52=\frac{35}6=4\frac38\ cups\ of\ flour$

Please answer!!! Number 3-6 !!!
Use the examples they have at the top to answer!
Has to be that method

Answers

3. First, turn the fractions into improper fractions

11/8 + 11/4

Since we can't divide 11 by 2 to make the denominator of the first fraction 2, let's multiply both sides of the second fraction by 2 instead.

11/8 + 11*2/4*2 = 11/8 + 22/8

33/8, or 4 1/8

(I already answered numbers 4 and 6 in a previous question you asked)

5. 1 1/2 + 2 3/4

Obviously, we'll start by converting the fraction into improper fractions.

3/2 + 11/4

Multiply both sides of the first fraction by 2

3*2/2*2 + 11/4 = 6/4 + 11/4 = 17/4

17/4, or 4 1/4

A decimal that is equivalent to three and ten hundredths

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3=3
hundreths is 2nd decimal place
10 hundreths=10/100=1/10
actually is 1 tenth
tenth=1st decimal place
3 and 0.1=3.1

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Hi please could you answer the single question in the attachment.Please show full working out. Thanks.

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Hi please could you answer the single question in the attachment.Please show full working out.

Thanks.