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expeople1 [14]
3 years ago
13

Please help mei wanna sleep :(​

Mathematics
1 answer:
Anni [7]3 years ago
8 0

Answer:

what langue is that

Step-by-step explanation:

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The transformation of triangle abc is an example of what
Dovator [93]
Reflect over the Y axis
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3 years ago
Solve for x.<br><br> -3x+x=2(x-3)
Nat2105 [25]

Answer:

x=-\frac{3}{2}

Step-by-step explanation:

-3x+x=2(x-3)\\ \Leftrightarrow -2x=2x-6\\ \Leftrightarrow 4x=-6\\ \Leftrightarrow x=-\frac{3}{2}

5 0
3 years ago
Read 2 more answers
Sin(3pi over 4) = _____
OlgaM077 [116]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2790456

______________


\mathsf{sin\!\left(\dfrac{3\pi}{4}\right)}\\\\\\ =\mathsf{sin\!\left(\dfrac{3\cdot 180^\circ}{4}\right)}\\\\\\ =\mathsf{sin(135^\circ)}\\\\ =\mathsf{sin(180^\circ-135^\circ)}

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I hope this helps.=)


Tags:  <em>sine sin common angles trig trigonometry </em>

8 0
3 years ago
A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean isx⎯ ⎯ x¯ = 840 and
gayaneshka [121]

Answer:

(832.156, \ 847.844)

Step-by-step explanation:

Given data :

Sample standard deviation, s = 15

Sample mean, \overline x = 840

n = 23

a). 98% confidence interval

$\overline x \pm t_{(n-1, \alpha /2)}. \frac{s}{\sqrt{n}}$

$E= t_{( n-1, \alpha/2 )} \frac{s}{\sqrt n}}

$t_{(n-1 , \alpha/2)} \frac{s}{\sqrt n}$

$t_{(n-1, a\pha/2)}=t_{(22,0.01)} = 2.508$

∴ $E = 2.508 \times \frac{15}{\sqrt{23}}$

  $E = 7.844$

So, 98% CI is

$(\overline x - E, \overline x + E)$

(840-7.844 ,  \ 840+7.844)

(832.156, \ 847.844)

4 0
2 years ago
Terry has a number cube that is numbered from 1 to 6. She rolls the cube 50 times. Which equation can be used to predict the num
choli [55]

Answer:

Step-by-step explanation:

2/6(50)

because 2 of the 6 is greater than 4

with 50 rolls

3 0
3 years ago
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