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ASHA 777 [7]
3 years ago
10

What is (x - 3)2 + 2x - 4 for x=5 ?

Mathematics
1 answer:
yuradex [85]3 years ago
7 0

Answer:

(x - 3)2 + 2x - 4 \\ (5 - 3)2 + 2 \times 5 - 4 \\ (2) \times 2 + 10 - 4 \\ 4 + 10   - 4 \\ 14 - 4 = 10

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weqwewe [10]

Answer:

The y-intercept is –2.

The slope is Negative three-fifths

Step-by-step explanation:

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3 0
3 years ago
Find the sum of 2n-8x-11 and n+5x-4
nikitadnepr [17]
3n-3x-15  You have to add the like terms.
4 0
3 years ago
Five men working six hours a day take eight days to fill a trench. How long does it take 3 men working eight hours a day to fill
Oduvanchick [21]

Answer:

The correct answer is 10 days.

Step-by-step explanation:

To fill a trench, 5 men work for 6 hours a day for eight days.

Total work hours required is given by 5 × 6 × 8 = 240 hours.

The same work is supposed to be done by 3 men working 8 hours a day.

Let these three men need to work for x days.

Therefore total work hour these group of three men gave = 3 × 8 × x = 24x hours

Therefore the work hour of both the group of 5 men and 3 men should be equal.

⇒ 24x = 240

⇒ x = 10

Therefore the group of 3 men have to work for 10 days to fill the trench.

6 0
3 years ago
Given the angles inscribed in the circle, find m ∠ DBC.
Cloud [144]

Answer:

m∠DBC = 51°

Step-by-step explanation:

<u>Circle Theorem vocabulary</u>

  • Chord: A straight line joining two points on the circle.
  • Inscribed angle: The angle formed when two chords meet at one point on a circle.
  • Intercepted arc: The arc that is between the endpoints of the chords that form the inscribed angle.

<u>Inscribed Angle Theorem</u>

The measure of an <u>inscribed angle</u> is half the measure of the <u>intercepted arc</u>.

Therefore:

\sf \implies \angle DBC=\dfrac{1}{2}\:\overset{\frown}{BC}

\sf \implies \angle DBC=\dfrac{1}{2}\:(102^{\circ})

\sf \implies \angle DBC=51^{\circ}

Learn more about the Inscribed Angle Theorem here:

brainly.com/question/27934538

brainly.com/question/27943630

6 0
2 years ago
Read 2 more answers
Which expressions are equivalent to 12-14/3m+2/3m?
Jet001 [13]
The answer
Is A/B/C those are all that apply
6 0
3 years ago
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