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Reil [10]
3 years ago
12

When is estimating an effective tool

Mathematics
2 answers:
aev [14]3 years ago
6 0
Whaen it says round to the nearest 
kirill [66]3 years ago
3 0
Never It is STUPID!!!!!! 
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A right triangle has leg lengths of 9 units and 12 units. Write an equation that can be
LenKa [72]
<h2>The Pythagorean Theorem</h2>

The Pythagorean Theorem: a^2+b^2=c^2

  • <em>a</em> and <em>b</em> are the two legs in a right triangle
  • <em>c</em> is the hypotenuse (the longest side of a right triangle; opposite the 90° angle
  • <em>*keep in mind that this theorem applies only to right triangles</em>

<h2>Solving the Question</h2>

We're given:

  • Legs = 9 units and 12 units
  • Hypotenuse = <em>c</em>

<em />

Plug these measurements into the Pythagorean theorem:

a^2+b^2=c^2\\9^2+12^2=c^2

⇒ Combine like terms:

81+144=c^2\\c^2=225

<h2>Answer</h2>

c^2=225

4 0
2 years ago
Write a Polynomial with the given zeros: -2, 7
Alex787 [66]

Answer:

Step-by-step explanation:

f(x)=(x+2)(x-7)=x²-5x-14

7 0
3 years ago
Halp me plez I dont wanna fail ( MUST BE A EXPRESSION)
Scilla [17]

Answer:

2x+15=33

Step-by-step explanation:

Let n be the number of days he has been doing sit ups, not counting the first day. Since he does 2 more sit-ups for each day, then the number of additional sit-ups is 2n.

Since he started doing  15 sit-ups on the first day, the total number of sit-ups

after x days would be 2n+15.

Since he did a total of 33 sit ups today, then 2n+15=33

4 0
3 years ago
What is the ratio of 420m to 1 km
suter [353]

Answer:

21/50 or 21:50

Step-by-step explanation:

1km = 1000m

That means one meter is equal to 1/1000 of a km.

420 meters is 420/1000 of a km which is equal to 42/100 = 21/50 or 21:50

Is it right?

Also can I have Brainiest

7 0
3 years ago
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Multiply. Write your answer as a fraction in the simplest form.<br> (−1 2/3)^3
nikdorinn [45]

Answer:

Fraction Calculator

Add Fractions, Subtract Fractions, Multiply Fractions, or Divide Fractions and get an answer in the simplest form with this Online Fraction Calculator.

FRACTION CALCULATOR

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/

(+, -, x, ÷)

Second Fraction

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Subtract Fractions

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3 years ago
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