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3 years ago

Please help immediately! also don't use a link to a website

Mathematics

1 answer:

kodGreya [7K]3 years ago

7 0

Answer:

Step-by-step explanation:

the radius is half the diameter:

7/2 : 2 = 7/2 x 1/2 = 7/4 cm

the circumference is:

diameter x π = 7/2π cm

the approximate circumference is

7/2 x 3,14 = 10,99 cm

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This is really confusing for me

VikaD [51]

In part A, if a's value is 1 then b is 2 and so on so the first letter of your name will have a number, and for part b you tale 3 letters that make up a word and the number after also equals 20.

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3 years ago

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The weight of a honeybee is 1.2 x 10^-1 g. The weight of the pollen collected by the bee on one trip is 6.0⋅10 ^−2 g.

expeople1 [14]

Answer:

<em>The combined weight of the bee and the pollen will be $1.8\times 10^-^1$ g.</em>

Step-by-step explanation:

The weight of the honeybee is $1.2\times 10^-^1$ g and the weight of the pollen collected by the bee is $6.0\times 10^-^2$ g.

For finding the combined weight, we just <u>need to add those two numbers</u>.

First we will convert each scientific notation as decimal numbers. So........

$1.2\times 10^-^1 = 1.2\times \frac{1}{10}=0.12\\ \\ \\ 6.0\times 10^-^2 = 6.0\times \frac{1}{100}= 0.06$

Now.......

$(1.2\times 10^-^1)+(6.0\times 10^-^2)\\ \\ =0.12+0.06\\ \\ =0.18 = 1.8\times 10^-^1$

Thus, the combined weight of the bee and the pollen will be $1.8\times 10^-^1$ g.

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4 years ago

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2. If a= 2, b= 3 and c= 3,evaluate: i) a+ 2b ii) a+b+c

scoundrel [369]

Answer:

$i)a + 2b = 2 + 2(3) = 2 + 6 = 8 \\ ii)a + b + c = 2 + 3 + 3 = 2 + 6 = 8$

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2 years ago

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What is the greatest common factor of 65 and 91

Sedbober [7]

So,

First, we find the prime factored form (P.F.F.) of 65 and 91.

P.F.F. of 65: 5 * 13

P.F.F. of 91: 7 * 13

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13

13 = G.C.F.

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4 years ago

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Leah is writing an equivalent equation which solves for y. What should be her next step? 3 x + 4 y = 8. 3 x minus 3 x + 4 y = 8

Karolina [17]

Given :

A linear equations :

3x+4y = 8 .

She have completed the following steps :

3x+4y = 8

3x+4y-3x = 8-3x

4y = 8 -3x

To Find :

The equivalent equation which solves for y.

Solution :

General equation of line or equation which solves for y is given by :

y = mx +c

So , our next step should be dividing both sides by 4 .

$\dfrac{4y}{4}=\dfrac{8}{4}-\dfrac{3x}{4}\\\\y=2-\dfrac{3x}{4}$

Therefore , equation which solves for y is $y=2-\dfrac{3x}{4}$ .

Hence , this is the required solution .

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4 years ago

Please help immediately! also don't use a link to a website​

Please help immediately! also don't use a link to a website