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3 years ago

Can anyone please help me do 13 and 14 please

Mathematics

1 answer:

NeX [460]3 years ago

4 0

Answer:

hey we can only see 13 and for 13 is<em><u> X = 57.36</u></em>

Step-by-step explanation:

since we have opposite and the hypotenuse we use sin...

sin(theta) = opp/hyp

sin(38) = 17/x

and we multiple x to both sides which leaves us with

x * sin(38) = 17

and then divide sin(38) so x can be by it- self which gives us

x = 17/sin(38

X = 57.36

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An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this seq

frez [133]

<h3>Answer: 144</h3><h3>Step-by-step explanation:</h3><h3 />

Since, the first 9 multiple of 4 starts from 0 are,

0, 4, 8, 12, 16, 20, ................

Which is an AP,

Having the first term, $a_1 = 0$

And, the successive difference, d = 4,

Since, the sum of the n term of an AP,

$S_n = \frac{n}{2}[2a + (n-1)d]$

Hence the sum of 9 term of the above AP,

$S_9 = \frac{9}{2}[2\times 0 + (9-1)\times 4]$

$S_9 = \frac{9}{2}(0 + 8\times 4)$

$S_9 = \frac{9}{2}(32)$

$S_9 = \frac{288}{2}=144$

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3 years ago

21 - 6x > 34<br><br><br> What’s the answer

Darina [25.2K]

Answer:

Step-by-step explanation:

21 - 6x > 34

-6x > 13

x < -13/6

3 0

3 years ago

What is the value of x to the nearest degree?<br> Answer options: 48, 42, 24, 84.

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

tan theta = opposite side/ adjacent

tan x = 11/10

Take the arctan of each side

arctan tan x = arctan (11/10)

x =arctan (11/10)

x = 47.72631099

To the nearest degree

x = 48

6 0

4 years ago

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X-5For the function g(x) =solve the following inequality.7X+7g(x) > 0

iren2701 [21]

$g(x)=\frac{x-5}{x+7}$

We need to find the points x where

$\frac{x-5}{x+7}>0$

This can only happens if both, the numerator and the denominator have the same sign, that is

$\begin{gathered} x-5>0 \\ x>5 \\ \text{and} \\ x+7>0 \\ x>-7 \end{gathered}$

$\begin{gathered} x-5$

The first pair of inequalities leads to the set

$(5,\infty)\cap(-7,\infty)=(5,\infty)$

and the second

$(-\infty,5)\cap(-\infty,-7)=(-\infty,7)$

Then, the answer is

$(-\infty,-7)\cup(5,\infty)$

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2 years ago

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Andrews [41]

Answer:

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Step-by-step explanation:

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3 years ago

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