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earnstyle [38]
3 years ago
6

Factorise 6x² -5x -21

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0
I think it’s this but I’m not sure

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If point R is on segment ST, then segment RS is the same as segment ST rue or false
jonny [76]
Look it up its simple
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3 years ago
HELP NEEDED !!!<br> find the size of unknown angles
Karolina [17]

<em><u>Explanation</u></em><em> </em><em>:</em>

The line DF is parallel to OB, therefore Angle x = Angle y.

( because, they for corresponding angle pair which are equal. )

And the angle made by an arc at center is always double the angle made by the same arc at its boundary, hence

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The z-score associated with 95% is 1.96. If the sample mean is 200 and the standard deviation is 30, find the upper limit of the
ziro4ka [17]

Answer:

The upper limit of the 95% confidence interval is:

C.I_u = 200 + (58.8/\sqrt{n})

Step-by-step explanation:

The formula is given as:

C.I = μ ± Z*σ/\sqrt{n}

The upper limit => C.I_u = μ + Z*σ/\sqrt{n}

The lower limit => C.I_l = μ - Z*σ/\sqrt{n}

The sample size (n) is not stated in the question. Hence, we calculate the upper limit with respect to n.

The upper limit => C.I_u = 200 + 1.96*(30/\sqrt{n})

                                    = 200 + (1.96*30)/\sqrt{n}

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5 0
3 years ago
Aline's y-intercept is -6 and its slope is 0.What is its equation in slope-intercept form?
notka56 [123]

Answer:

y=0x+-6

Step-by-step explanation:

y=mx+b

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4 years ago
Determine if the sides are greater than (&gt;), less than (&lt;), or equal (=) to each other.
DochEvi [55]

In ∆BCE

\\ \sf\longmapsto

\\ \sf\longmapsto

\\ \sf\longmapsto

Opposite side to <E=BC

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3 years ago
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