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ankoles [38]
4 years ago
7

Simplify this expression HELP ASAP

Mathematics
1 answer:
Sergio039 [100]4 years ago
8 0

Answer:

B

Step-by-step explanation:

Noting the following rule of radicals

\sqrt{a} × \sqrt{b} = \sqrt{ab}

Given

(\sqrt{2} + \sqrt{3})( \sqrt{5} - \sqrt{7} )

Each term in the second factor is multiplied by each term in the first factor

= \sqrt{2}(\sqrt{5} - \sqrt{7}) + \sqrt{3}(\sqrt{5} - \sqrt{7}) ← distribute parenthesis

= \sqrt{10} - \sqrt{14} + \sqrt{15} - \sqrt{21}

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Please help asap!!!!
Maurinko [17]

I think the answer is 3w over z to the power of 5

8 0
4 years ago
A couple plans to invest money into an account that earns 9% interest, compounded quarterly, for their child's college education
DochEvi [55]

Answer:

$282.98

Step-by-step explanation:

For computing the principal amount we need to apply the present value function i.e to be shown in the attachment below:

Data provided that in question

Future value = $25,000

Rate of interest = 9%

NPER = 13 years × 4 quarters =  52 quarters

PMT = $0

The formula is shown below:

= -PV(Rate;NPER;PMT;FV;type)

So, after applying the above formula, the present value is $282.98

8 0
3 years ago
What is the perimeter??
Mumz [18]

Answer:

26

Step-by-step explanation:

4 + 2 + 3 + 4 + 7 + 6

9+4+7+6

13+7+6

20+6

26

6 0
3 years ago
Read 2 more answers
A typical large orb spider has a mass of 0.50
romanna [79]
The tensile strength of spider silk is about 1150 MPa, which is 1.15 x 10^9 N/m². 

<span>So given that the diameter of the spider silk is 0.15 mm or 1.5 x 10^-4 m. The cross sectional area is approximately: </span>

<span>A = πr² = (3.14)(1.5 x 10^-4 / 2)² = 1.767 x 10^-8 m² </span>

<span>So this means that the amount of force we can apply before the the silk thread is broken is: </span>

<span>F = PA = (1.15 x 10^9)(1.767 x 10^-8) = 20.32 N </span>

<span>F = mg, so m = F/g = (20.32)/(9.81) = 2.07 kg!!! </span>
3 0
3 years ago
I need help asap !!!!! Olease
qaws [65]

Answer:

\overline{BC}

Step-by-step explanation:

\overline{BC} does NOT intersect \overline{AG}

Hope it helps you in your learning process.

3 0
3 years ago
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