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Colt1911 [192]
3 years ago
8

HELP PLEASE!! ASAP!!

Mathematics
1 answer:
densk [106]3 years ago
4 0

Answer:

The estimated distance is 8.1cm.

The actual distance is 8.106cm.

Step-by-step explanation:

Given that the Pythogorean Theorem, c² = a² + b². Then substitute the following values into the formula :

{c}^{2}  =  {a}^{2}  +  {b}^{2}

Let a = 5.1cm,

Let b = 6.3cm,

{c}^{2}  =  {5.1}^{2}  +  {6.3}^{2}

{c}^{2}  = 26.01 + 39.69

{c}^{2}  = 65.7

c =  \sqrt{65.7}

c = 8.106cm \: (3d.p)

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5x - 29.4 + 1/2x when x is 11/5
Kaylis [27]

Answer:

-17.3

Step-by-step explanation:

Evaluate 5 x + x/2 - 29.4 where x = 11/5:

5 x + x/2 - 29.4 = 5×11/5 - 29.4 + 1/2×11/5

Hint: | Express 5×11/5 as a single fraction.

5×11/5 = (5×11)/5:

(5×11)/5 - 29.4 + (11/5)/2

Hint: | Express (11/5)/2 as a single fraction.

(11/5)/2 = 11/(2×5):

(5×11)/5 - 29.4 + 11/(2×5)

Hint: | Cancel common terms in the numerator and denominator of (5×11)/5.

(5×11)/5 = 5/5×11 = 11:

11 - 29.4 + 11/(2×5)

Hint: | Multiply 2 and 5 together.

2×5 = 10:

11 - 29.4 + 11/10

Hint: | Approximate 11/10.

11/10≈1.1:

11 - 29.4 + 1.1

Hint: | Evaluate 11 + 1.1 using long addition.

| 1 | 1. | 0

+ | | 1. | 1

| 1 | 2. | 1:

12.1 - 29.4

Hint: | Factor out a negative sign in 12.1 - 29.4 in order to subtract.

12.1 - 29.4 = -(29.4 - 12.1):

-(29.4 - 12.1)

Hint: | Subtract 12.1` from 29.4`.

| 2 | 9. | 4

- | 1 | 2. | 1

| 1 | 7. | 3:

Answer: -17.3

7 0
3 years ago
Read 2 more answers
The diameter of a basketball is 9.47 inches. What is the length of 12 basketballs lined up next to each other?
svetlana [45]

Answer:

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Step-by-step explanation:

we know that

To find out the length of 12 basketballs lined up next to each other, multiply the diameter of one basketball by 12

12(9.47)=113.64\ in

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The logical answer between the options is 116.88 inches, because the length cannot be less than 113.64 in

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3 years ago
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Brrunno [24]

Answer:

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Step-by-step explanation:

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Multiply square roots.

\sqrt{12 \times 18}

\sqrt{216}

Simplify square root.

\sqrt{36} \sqrt{6}

6\sqrt{6}

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3 years ago
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Answer:

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Step-by-step explanation:

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