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e-lub [12.9K]
3 years ago
6

How to solve 2x^2-4x+7=5

Mathematics
1 answer:
Pachacha [2.7K]3 years ago
5 0

chur answer would be X=1

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Flura [38]
The answer is 7.75.......
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3 years ago
Identify the segments that are parallel, if any, if ∠DCB and ∠CDA are supplementary.
Triss [41]

Answer:

C

Step-by-step explanation:

We are given that

\angleDCB and \angleCDA are supplementary.

We have to identify the parallel segments if \angleDCB and \angleCDA are supplementary.

Supplementary angles: If the angles are supplementary then the sum of two angles is 180 degrees.

Therefore,

\angle DCB+\angle CDA=180^{\circ}

Therefore, angle DCB and angle CDA are interior angles .

Because CA is a transversal line and sum of interior angles is 180 degrees.

When the sum of interior angles formed between two lines  and on same side of transversal line is 180  degrees. Then the lines are parallel.

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8 0
3 years ago
Use the distributive property to write the expression –6(–3x – 5) without parentheses.
Sauron [17]

Answer:

<h2>18x + 30</h2>

Step-by-step explanation:

The distributive property: a(b + c) = ab + ac.

-6(-3x - 5) = (-6)(-3x) + (-6)(-5) = 18x + 30

3 0
3 years ago
A box contains
madam [21]
5:5 (first box, pencils to pens)

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The probability of picking a crayon (2nd box): 3/10

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7 0
3 years ago
Read 2 more answers
Please help me, I am so confused. Thanks​
miskamm [114]

Answer:

c. 80

Step-by-step explanation:

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cos x = cos (90-x +70)

cos x = cos 160 -x

x= 160-x

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x =80

8 0
3 years ago
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