All categories

3 years ago

Please answer these few questions on circumference will give BRAINLIEST if correct

Mathematics

2 answers:

Marrrta [24]3 years ago

6 0

Answer:

1) 5.6 x 2 = 11.2

2) 3.8 / 2 = 1.9

3) 6.8 / 2 = 3.4

4) 2.3 x 2 = 4.6

Step-by-step explanation:

disa [49]3 years ago

4 0

In my knowledge

1. C ≈ 35.19mm (r=5.6mm)

C=2πr=2·π·5.6 ≈35.19mm

2. C= 2πr (C= 3.8cm)

r= C/2πr = 3.8/2·π = 0.6cm

r= 0.6cm

3. C= 2πr (C= 6.8m)

r= C/2πr = 6.8/2·π = 1.08m

r= 1.08m

4. C= 14.45m (r= 2.3m)

C=2πr=2·π·2.3≈14.45m

Hope It Helps :)

You might be interested in

Solve 5x - (2x + 2) = x + (3x + 5) (make sure to type the number only)

Anit [1.1K]

Answer:

Step-by-step explanation:

To solve this problem we need to find x

First we need to do parenthesis

This means that the equation becomes 5x - 2x - 2 = x + 3x + 5

Next add or subtract, this simplifies it to 3x - 2= 4x + 5

After this bring the numbers on the right and the variables on the left

This means subtracting 4 on each side and adding 2 on each side

Now the equation becomes -x = 7

Lastly, put the negative on the right

x = 7

7 0

3 years ago

a student ran out of time on a multiple choice exam and randomly guess the answers for two problems each problem have four answe

katen-ka-za [31]

Answer:

The probability that he answered neither of the problems correctly is 0.0625.

Step-by-step explanation:

We are given that a student ran out of time on a multiple-choice exam and randomly guess the answers for two problems each problem have four answer choices ABCD and only one correct answer.

Let X = Number of problems correctly answered by a student.

The above situation can be represented through binomial distribution;

$P(X=r)=\binom{n}{r}\times p^{r}\times (1-p)^{n-r};x=0,1,2,3,....$

where, n = number of trials (samples) taken = 2 problems

r = number of success = neither of the problems are correct

p = probability of success which in our question is probability that

a student answer correctly, i.e; p = $\frac{1}{4}$ = 0.75.

So, X ~ Binom(n = 2, p = 0.75)

Now, the probability that he answered neither of the problems correctly is given by = P(X = 0)

P(X = 0) = $\binom{2}{0}\times 0.75^{0}\times (1-0.75)^{2-0}$

= $1 \times 1\times 0.25^{2}$

= 0.0625

6 0

4 years ago

Ari is designing a patio that will be 20 feet long and 16 feet wide. He makes a scale drawing of the patio using a scale of 1 in

lara31 [8.8K]

Wouldnt it be four? id its 1/4

6 0

3 years ago

Read 2 more answers

10. Name the one example of Analog computer

BartSMP [9]

Answer:

example of Analog computer=

Operational amplifiers

6 0

3 years ago

Read 2 more answers

You have one type of nut that sells for $4.50/lb and another type of nut that sells for $8.80/lb. You would like to have 12.9 lb

butalik [34]

Answer:

The quantity of first nut = x = 2.4 lb

The quantity of second nut = 12.9 - x = 12.9 - 2.4 = 10.5 lb

Step-by-step explanation:

Let amount of first type of nut = x

Amount of second type of nut = 12.9 - x

Total Cost of first type of nut = 4.5 x

Total Cost of second type of nut = 8.8 × (12.9 - x)

Total cost of both type of nut = 8 × 12.9

Total cost = Cost of first type of nut + Cost of second type of nut

8 × 12.9 = 4.5 x + 8.8 × (12.9 - x)

103.2 = 4.5 x + 113.52 - 8.8 x

8.8 x - 4.5 x = 10.32

4.3 x = 10.32

x = 2.4

Therefore the quantity of first nut = x = 2.4 lb

The quantity of second nut = 12.9 - x = 12.9 - 2.4 = 10.5 lb

3 0

3 years ago