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2 years ago

How do I simplify (-3)(7)+(-5)(-2)

Mathematics

2 answers:

Delvig [45]2 years ago

6 0

Answer:

-21+10 or simpilest form -11

Step-by-step explanation:

1. -3x7+ -5x-2

2. -21+10

3. -11

ss7ja [257]2 years ago

3 0

-11

Step by step explanation:

(-3)(7) + (-5)(-2) step 1: multiply -3 by 7

-21 + (-5)(-2) step 2: multiply -5 by -2

-21 + 10 step 3: add 10 to -21

-11

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PLEASE HELP ME RN PLEASE

Advocard [28]

Answer:

$\frac{n^{2} - 1 }{2}$

$\sqrt{29}$

Step-by-step explanation:

Area of triangle=1/2×b×h

$\frac{1}{2} \times (n - 1)(n + 1)$

$\frac{( {n}^{2} + n - n - 1) }{2 }$

$\frac{ {n}^{2} - 1 }{2}$

2. Area of triangle=14

$\frac{ {n}^{2} - 1 }{2} = 14$

${n}^{2} - 1 = 28$

${n}^{2} = 29$

$n = \sqrt{29}$

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densk [106]

Answer:

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Step-by-step explanation:

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djyliett [7]

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1 year ago

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zmey [24]

Answer:

Step-by-step explanation:

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