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2 years ago

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Please help me on this

1 answer:

dedylja [7]2 years ago

6 0

Answer:

12. C

13. B

14. B

Step-by-step explanation:

12 - length of ramp = hypotenuse

given the angle 20, we have hypotenuse and opposite, so we use sin

sin 20* = 10/r

13- tan 46 = x/11, x = 11(tan46) = 11.4

14- cos 46 = 12/x = 17.3

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15 times as much as 1 fifth of 12

Ann [662]

1) Work out what 1/5 of 12 is
To do this, we divide 12 by 5
12/5 = 2.4

2) Multiply 2.4 by 15
2.4 x 15 = 36

<em>If you don't like decimals, you can also do it this way...
</em>
This can be rewritten as 15 x 1/5 x 12
Multiplications alone can be performed in any order

1) Work out what 1/5 of 15 is
1/5 of 15
15/5 = 3

2) 3 multiplied by 12
3 x 12 = 36

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3 years ago

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Abraham has visited country somebody he has a cold or visiting at least 50 countries he plans to choose a school by visiting fiv

Ipatiy [6.2K]

<em>Question:</em>

<em>Abraham has visited at least 50 countries; he plans to visit five new countries per year (Y) for the next several years. Which inequality and solution shows the amount of years they will take for Abraham to meet his goal.</em>

Answer:

$Countries \geq 50 + 5y$

$y \leq 29$

Step-by-step explanation:

Given

$Countries = 50$ ------ at least

$Yearly =5$

Required

Represent as an inequality

"at least" means $\geq$

So the countries he has visited can be represented as thus;

$Countries \geq 50$

If

1 year = 5 countries

y years would be 5y countries

So, in y years; he'd have visited

$Countries \geq 50 + 5y$

To determine the value of y.

We have that

$Countries = 195$ <em>in the world</em>

<em>Substitute 195 for Countries</em>

$195 \geq 50 + 5y$

<em>Collect Like Terms</em>

$195 - 50 \geq 5y$

$145 \geq 5y$

<em>Divide through by 5</em>

$145/5 \geq y$

$29 \geq y$

<em>Reorder</em>

$y \leq 29$

This means that; he'll visit all countries in at most 29 years' time

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2 years ago

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2 years ago

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Misha Larkins [42]

Answer:

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Step-by-step explanation:

answer: C

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2 years ago

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If the sum of all interior angles of a regular polygon is 1080 degrees then number of sides of the polygon is?

MakcuM [25]

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The formula for the sum of the angles of a polynomial is:

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3 years ago