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SCORPION-xisa [38]
3 years ago
9

Please help!! can not get this one wrong!! asap

Mathematics
2 answers:
jasenka [17]3 years ago
7 0

Answer:

9x² - 8x - 6 = 0

Step-by-step explanation:

11 - 4x = (3x - 2)² + 1

FOIL the (3x - 2)².

(3x - 2)² = (3x - 2)(3x - 2) = 9x² - 12x + 4

Rewrite the Equation.

11 - 4x = 9x² - 12x + 4 + 1

Move all to one side and combine like terms.

9x² - 8x - 6 = 0

Helen [10]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Given

11 - 4x = (3x - 2)² + 1 ← expand the squared factor using FOIL

11 - 4x = 9x² - 12x + 4 + 1, that is

11 - 4x = 9x² - 12x + 5 ( add 4x to both sides )

11 = 9x² - 8x + 5 ( subtract 11 from both sides )

0 = 9x² - 8x - 6 or

9x² - 8x - 6 = 0 → B

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You and two friends visit a pizza shop. There are 15 toppings. 5 toppings are meat and the rest are vegetable. Each of you order
andrew-mc [135]
We know that
total toppings=15
<span>meat toppings=5
</span>
<span>The first person has a
5/15 chance of getting a meat topping.

The second person has a
4/14 chance because there are no repeats,

The third person would have a
3/13 chance.
Since there are three multiply
5/15 * 4/14 * 3/13.=60/2730
</span>60/2730-------> divide by 30 both members------> 2/91

the answer is
2/91
8 0
3 years ago
Allometric relations often can be modeled by ​f(x)= x^b​, where a and b are constants. One study showed that for a male fiddler
dolphi86 [110]

Answer:

a) f(2)= 0.448 (2)^{1.21}= 1.036 grams

b) 0.5 = 0.448 x^{1.21}

Dividing both sides by 0.448 we got:

\frac{0.5}{0.448} = x^{1.21}

We can appy the exponent \frac{1}{1.21} in both sides of the equation and we got:

(\frac{0.5}{0.448})^{\frac{1}{1.21}} = x= 1.095grams

Step-by-step explanation:

For this case we know the following function:

f(x) = 0.448 x^{1.21}

The notation is: x is the weight of the crab in​ grams, and the output​ f(x) is the weight of the claws in grams.

Part a

For this case we just need to replace x = 2 gram in the function and we got:

f(2)= 0.448 (2)^{1.21}= 1.036 grams

Part b

For this case we know tha value for f(x) =0.5 and we want to find the value of x who satisfy this condition:

0.5 = 0.448 x^{1.21}

Dividing both sides by 0.448 we got:

\frac{0.5}{0.448} = x^{1.21}

We can appy the exponent \frac{1}{1.21} in both sides of the equation and we got:

(\frac{0.5}{0.448})^{\frac{1}{1.21}} = x= 1.095grams

8 0
3 years ago
Can someone answer all 3 thanks.
MA_775_DIABLO [31]

Answer:

All of them are yes because you either subtract or add to put in the form of mx+b

6 0
3 years ago
10x +1 12x-5 solve for x
dimulka [17.4K]

Answer:

x = 3

Step-by-step explanation:

10x + 1 = 12x - 5

Subtract 1 from each side

10x = 12x - 6

Subtract 12x from each side

-2x = -6

Divided by -2

x = 3

5 0
4 years ago
Does anyone know the answer to this? or how to do it?​
Solnce55 [7]

Answer:

( -2 , 0 ) maximum

Step-by-step explanation:

Watch the graph and point out the coordinates.

if its vertex is less that 0 or negative, then maximum.

With vertex being greater than 0 or positive, its minimum.

7 0
3 years ago
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