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pantera1 [17]
3 years ago
14

Explain why 2.15 and -2.15 are are opposites?

Mathematics
1 answer:
Amanda [17]3 years ago
3 0
One is positive and the other is negative.
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I’ve been stuck can someone explain
MariettaO [177]

Answer:

Option (3)

Step-by-step explanation:

From the figure attached,

AB and CD are two chords intersecting at O.

m∠AOD = 37°

m∠AOC + m∠AOD = 180° [Since these angles are supplementary angles]

m∠AOC = 180° - 37°

              = 143°

By the theorem of intersecting chords,

Measure of angle formed is the half of the sum of measures of the arcs intercepted by the angle and vertical angle.

m∠AOC = \frac{1}{2}(\widehat{AC}+\widehat{BD})

143° = \frac{1}{2}[(x+5)+(x-5)]

143° = x

Therefore, Option (3) will be the answer.

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3 years ago
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Urban ecosystem. 1) Birds - their limiting factor is the number of trees that can support their young2) Trees - amount of fertile soil, since buildings are abundant they can't grow properly3) Wild dogs - having a hard time to feed themselves due to scarce foodThank you for your question. Please don't hesitate to ask in Brainly your queries.
8 0
3 years ago
If 154 pounds is the lightest weight, then<br> pounds is the heaviest.<br> 170<br> 163<br> 169
Paha777 [63]

Answer:

169 Pounds

Step-by-step explanation:

...

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Solve the system using elimination.<br><br> 2x + 3y = 17<br> x + 5y = 19
ale4655 [162]

\left\{\begin{array}{ccc}2x+3y=17\\x+5y=19&|\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+3y=17\\-2x-10y=-38\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad-7y=-21\qquad\text{divide both sides by (-7)}\\.\qquad\qquad \boxed{y=3}\\\\\\\text{Substitute the value of y to the second equation}\\\\x+5(3)=19\\\\x=15=19\qquad\text{subtract 15 from both sides}\\\\\boxed{x=4}\\\\Answer:\ x=4\ and\ y=3.

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What is the sum of the numbers as the product of their GCF and another sum ( 30+54)
hodyreva [135]
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