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ehidna [41]
4 years ago
12

How can you prove a triangle is a right triangle? select one:a. use the distance formula to see if at least two sides are congru

ent.b. use the slope formula to see if any sides are perpendicular.c. use the distance formula to see if all three sides are congruent.d. use the slope formula to see if any sides are parallel?
Mathematics
1 answer:
AysviL [449]4 years ago
4 0
B.
__________________
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A store sells 5 bananas for $1.80. How much will 9 bananas cost?
tiny-mole [99]

Answer:

3dollars

Step-by-step explanation:

easy

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earnstyle [38]

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7m^4-52m^3-28m^2+67m+42

Step-by-step explanation:

(7m^2-3m-7)(m^2-7m-6)

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4 0
3 years ago
A pre-paid cell phone plan has a flat rate of $15 with an additional cost of $0.15 per
Tresset [83]

Answer:

anything less than 133 would be true

Step-by-step explanation:

35 ≥ 0.15m + 15

solve for m

subtract 15 from both sides

20  ≥ 0.15m

divide both sides by 0.15

133.33  ≥ m

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5 0
2 years ago
What is the sum of:<br> -11.5 (3.2) =<br> Please answer
Misha Larkins [42]

Answer:

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you multily the negative by the positive and get a negative answer so -36.8

6 0
3 years ago
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Nat2105 [25]

Answer:

<h2>B. y - 1 = -3(x - 9)</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (9, 1) and (4, 16). Substitute:

m=\dfrac{16-1}{4-9}=\dfrac{15}{-5}=-3

y-1=-3(x-9)

6 0
4 years ago
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