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3 years ago

Evaluate. 8/13 ÷ 2/3 A.16/39 B.12/13 C.11/15 D.24/13

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

5 0

The last choice or choice D Standards of evaluation or Second choice or Choice B Scores from the evaluation...I am stuck between the two.

ludmilkaskok [199]3 years ago

3 0

Answer:

B. 12/13

Step-by-step explanation:

The answer choices suggest that you intend the problem to be interpreted as ...

(8/13)/(2/3) . . . . . parentheses are required

= (8/13) × (3/2) = (8·3)/(13·2) = (8·3)/(2·13)

= (8/2) × (3/13) . . . . making use of the associative property

= 4 × 3/13 = 12/13

_____

Your calculator can help with these. You do need to get the parentheses right.

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Bad White [126]

Answer:

c=(10)($1.75)/12

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3 0

3 years ago

Please help first person to answer correctly gets 50 and marked as brainly

jeka94

Answer:

HOPE THIS HELPS!!

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2 years ago

Please help ASAP please do these questions

Sedbober [7]

Answer:

a- 32

b-66

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Step-by-step explanation:

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3 years ago

Which equation is y = 9x2 + 9x – 1 rewritten in vertex form?

Anastasy [175]

Answer:

$y = 9(x +\frac{1}{2}) ^ 2 -\frac{13}{4}$

Step-by-step explanation:

An equation in the vertex form is written as

$y = a (x-h) + k$

Where the point (h, k) is the vertex of the equation.

For an equation in the form $ax ^ 2 + bx + c$ the x coordinate of the vertex is defined as

$x = -\frac{b}{2a}$

In this case we have the equation $y = 9x^2 + 9x - 1$ .

Where

$a = 9\\\\b = 9\\\\c = -1$

Then the x coordinate of the vertex is:

$x = -\frac{9}{2(9)}\\\\x = -\frac{9}{18}\\\\x = -\frac{1}{2}$

The y coordinate of the vertex is replacing the value of $x = -\frac{1}{2}$ in the function

$y = 9 (-0.5) ^ 2 + 9 (-0.5) -1\\\\y = -\frac{13}{4}$

Then the vertex is:

$(-\frac{1}{2}, -\frac{13}{4})$

Therefore The encuacion excrita in the form of vertice is:

$y = a(x +\frac{1}{2}) ^ 2 -\frac{13}{4}$

To find the coefficient a we substitute a point that belongs to the function $y = 9x^2 + 9x - 1$

The point (0, -1) belongs to the function. Thus.

$-1 = a(0 + \frac{1}{2}) ^ 2 -\frac{13}{4}$

$-1 = a(\frac{1}{4}) -\frac{13}{4}\\\\a = \frac{-1 +\frac{13}{4}}{\frac{1}{4}}\\\\a = 9$

<em>Then the written function in the form of vertice is</em>

$y = 9(x +\frac{1}{2}) ^ 2 -\frac{13}{4}$

7 0

3 years ago

BRAINLIEST! what are the next 2 terms in the geometric sequence?<br> a1=2,r=-3

LenKa [72]

Answer:

The next two terms after a1 is

-6 and then 18

Step-by-step explanation:

Geometric sequence means your pattern for the terms is multiplication by the same number.

So a1 is the first term and r is your common ratio.

The common ratio is what you are multiplying by each time to figure out the next term.

So the geometric sequence goes like this:

a1 , a1*r , (a1*r)*r or a1*r^2 , a1*r^3 ,....

So anyways you have

first term a1=2

second term a2=2(-3)=-6

third term a3=-6(-3)=18

And so on...

8 0

3 years ago