1 year ago

Simplify the expression –8(12). A. 96 B. 20 C. 2 D. –96

Mathematics

1 answer:

Tanzania [10]1 year ago

7 0

-96 is ur answer!!!!

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10^2+12^2+14^2+......+26^2=??

Kazeer [188]

Answer:

3156

Step-by-step explanation:

<em>Used formula:</em>
<em>(1² + 2² + 3² + ... + n²) =1/6*n(n + 1)(2n + 1)</em>

--------

10²+12²+14²+......+26² =
(2*5)²+(2*6)² + (2*7)² + ... + (2*13)² =
4*(5²+6²+7²+...+13²) =
4*(1²+2²+...+13² - (1²+2²+3²+4²)) =
4*(1/6*13(13+1)(2*13+1) - (1+4+9+16)) =
4*(1/6*13*14*27- 30) =
4*(819 - 30) =
4*789 =
3156

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3 years ago

Help me find the total number

il63 [147K]

Answer:

I think it's 44 aren't you adding?

7 0

2 years ago

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Artemon [7]

Answer:

$\sqrt{125}$

Step-by-step explanation:

Use Pythagorean theorem since you have a right triangle $15^{2}$ = $10^{2} + x^{2}$

225 = 100 + $x^{2}$ so x = $\sqrt{125}$

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3 years ago

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salantis [7]

Answer:

60 almonds?

Step-by-step explanation:

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2 years ago

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Please help me with this..

AleksandrR [38]

Answer:

f = 1

Step-by-step explanation:

Use the method of cross- multiplication

$\frac{a}{b}$ = $\frac{c}{d}$ ⇒ ad = bc, thus

20f = 5(f + 3) ← distribute

20f = 5f + 15 ( subtract 5f from both sides )

15f = 15 ( divide both sides by 15 )

f = 1

6 0

3 years ago