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3 years ago

HELP WITH THIS NUMBER PROBLEM PLZ:)

Mathematics

2 answers:

salantis [7]3 years ago

3 0

I believe you would take 127.5 and divide it by 8.5, try that and see if that works, hope this helps!

pickupchik [31]3 years ago

3 0

The correct answer is 15

To solve you need to divide 127 1/2 by 8 1/2 and you'll get 15

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AnnZ [28]

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8 0

3 years ago

Left parenthesis 5 plus 2 square root of 6 right parenthesis squared = a plus b square root of 6 then the value of a and b are

Ganezh [65]

Answer:

The values of $a$ and $b$ are $33$ and $\frac{20\sqrt{3}}{3}$ , respectively.

Step-by-step explanation:

The statement is equivalent to the following mathematic expression:

$\left(5 + 2\sqrt{2})^{2} = a + b\cdot \sqrt{6}$ (1)

By definition of the perfect square trinomial:

$25 + 20\cdot \sqrt{2} + 8 = a + b\cdot \sqrt{6}$

$33 + 20\sqrt{2} = a + b\cdot \sqrt{6}$

And by direct comparison we have the following system:

$a = 33$ (2)

$b\cdot \sqrt{6} = 20\sqrt{2}$ (3)

By (3), we solve for $b$ :

$b = \frac{20}{\sqrt{3}}$

$b = \frac{20\sqrt{3}}{3}$

The values of $a$ and $b$ are $33$ and $\frac{20\sqrt{3}}{3}$ , respectively.

6 0

3 years ago

HELP URGENT DUE IN 5 MINUTES URGENT PLEASE

VARVARA [1.3K]

The answer is C

x - 2y = 4
-x -x
-2y = 4 - x (divide that by 2)

Y = 1/2x - 2

4 0

2 years ago

What is 71/8 as a mixed numder

Nikolay [14]

To do this all you would have to do is (divide 8 into 72 then you would end up to get your mixed number, which is 8 7/8) Your Welcome! (:

4 0

3 years ago

Read 2 more answers

desceibe how to determine the average rate of change between x=4 and x=6 for the function f(x)=2x^3 +4

Ann [662]

$slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)= 2x^3+4\qquad \begin{cases} x_1=4\\ x_2=6 \end{cases}\implies \cfrac{f(6)-f(4)}{6-4} \\\\\\ \cfrac{[2(6)^3+4]~~ -~~[2(4)^3+4]}{2}\implies \cfrac{436~~ -~~132}{2}\implies \cfrac{304}{2}\implies 152$

4 0

3 years ago