3 years ago

Please help me this is really confusing here's the question

Mathematics

1 answer:

LuckyWell [14K]3 years ago

3 0

Answer:

I'm pretty sure its D. 11.5

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maksim [4K]

Answer:

my answer is B

Step-by-step explanation:

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3 years ago

What's is the square root of 63

QveST [7]

You want to be finding out what two factors (where one of them is a perfect square) has the produce of 63. It seems like 9 x 7 (9 is the perfect square) works.

$\sqrt{63} = \sqrt{9 \times 7} = \sqrt{9} \times \sqrt{7}$

The square root of 9 is 3 so we can just have $3 \sqrt{7}$ (which just means 3 times the square root of 7).

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3 years ago

The distance, d in meters, that an accelerating object travels is given by

Nastasia [14]

Answer:

B.Between 2 and 3

Step-by-step explanation:

60÷40

=3/2

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2 years ago

The binomial (2x3 + 3y2)7 is shown in expanded form, but elements of several terms are missing. To complete the expansion, drag

svlad2 [7]

${(2x^{3} + 3x^{2} )}^{7}$
EXPANDED: VERY LONG

$128x^{21} +1344x^{18} y^{2} +6048x^{15} y^{4} +15120x^{12} y^{6} +22680x^{9} y^{8} +20412x^{6} y^{10} +10206x^{3} y^{12} +2187y^{14}$

I used the Binomial Theorem, Which States
$(a + b)(a + b)= {a}^{2} + 2ab + {b}^{2} \\$
$({a}^{2} + 2ab + {b}^{2} )(a + b)={a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{3}$
$({a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{3}) \times (a + b) = i \: believe \: you \: get \: the \: pattern \: now$

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3 years ago

Latasha is younger than Andrea. The sum of their ages is 28. The difference between their ages is 10

antoniya [11.8K]

Latasha is 9 years old

Explanation: 9+19=28
19-9=10

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3 years ago