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Oxana [17]
3 years ago
12

A triangle has a base of 5 feet and an area of 20 square feet. Find the triangle's height.

Mathematics
2 answers:
jeka57 [31]3 years ago
5 0
<h2>Answer:</h2><h3>4</h3>

<h2>Step-by-step explanation:</h2>

5 ÷ 20 = 4

<h3>#BrainlyIsFun</h3>

Anuta_ua [19.1K]3 years ago
3 0
Hb=8ft correct answer
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F(x)=3x 2+x<br><br><br> Find f(−5)
Zina [86]

\huge \boxed{\mathfrak{Question} \downarrow}

  • f (x) = 3x² + x
  • Find f (-5).

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

Given,

  • f (x) = 3x² + x

Now, we have to find f (-5). To find this, we just need to substitute -5 in the place of x.

So,

\sf \: f(x) =  {3x}^{2}  + x \\  \\ \sf \: \: Substitute \: x \: as \:  - 5. \\  \\ \sf \:f( - 5) = 3( - 5) ^{2}  + ( - 5) \\ \\  \sf \:Calculate \:  -5 \:  to \:  the \:  power  \: of \:  2 \:  and \:  get \:  25. \\  \\\sf \: 3\times 25+5  \\  \\ \sf \:Multiply \:  3 \:  and \:  25 \:  to \:  get \:  75. \\ \\\sf \:  75+5  \\  \\\sf \:Add \:  75 \:  and \:  5  \: to  \: get  \: 80. \\   \\  =   \boxed{\boxed{ \bf \: 80}}

5 0
3 years ago
I will mark you brainiest if right
Marrrta [24]

Answer:

no f ing clue

Step-by-step explanation:

sym

3 0
3 years ago
What is a simplified expression for (x – y) – (x – y)?
sleet_krkn [62]

Answer:

0

Step-by-step explanation:

(x – y) – (x – y)

Distribute the minus sing

x-y-x+y

Combine like terms

x-x-y+y

0

6 0
4 years ago
Please full explanation please<br> I will mark brainlist :)
Talja [164]

Answer:

z = 8

Step-by-step explanation:

PythagoreanTheorem

a^2 + b^2 = c^2

a and b stand for the legs while c stands for the hypotenuse. Since we have the numeral for one of the legs and the hypothenuse, we can plug those into the formula.

a^2 + 15^2 = 17^2

a^2 = 64

a = 8

7 0
2 years ago
Read 2 more answers
Write 3/9 in the lowest terms
romanna [79]

Answer:

3/9 is 1/3 because if you simply by 3, it will be 1/3 of 9

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4 years ago
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