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3 years ago

Which of the terms cannot be combined with the others? -3x 4x 2 x 11x

1 answer:

7 0

4x^2 cannot be combined with the others if you are using addition or subtraction. However, the other three answers can be combined:
(-3x) + x + 11x = (-3x) + 12x = 9x.
or
11x -x -(3x) = 10x -3x = 7x.
Your answer is 4x^2
Hope this helps!

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A frog sits at one end of a table which is 2m long. In its first jump the frog goes a distance of 1m along the table, with its s

Phantasy [73]

Ah, this is an infinite sum question, or a sum of geometric sequence
when will the sum reach 1cm of the edge or about 1.99m
so

2m=200cm
within 1cm means at least 1.99m
so
we will use m and not cm for consitancy

sum of geometric sequence is
$S_n= \frac{a_1(1-r^n)}{1-r}$
a1=first term=initial jjump=1
r=common ratio=1/2
n=?, we ar solving for that

so
we want it to equal 1.99 so

$1.99= \frac{1(1- (\frac{1}{2})^n)}{1-\frac{1}{2}}$
$1.99= \frac{(1- (\frac{1}{2})^n)}{\frac{1}{2}}$
$1.99= 2(1- (\frac{1}{2})^n)$
divide both sides by 2
$\frac{1.99}{2} = 1- (\frac{1}{2})^n$
times -1
$\frac{-1.99}{2} = (\frac{1}{2})^n-1$
add 1 or 2/2 to both sides
$\frac{0.01}{2} = (\frac{1}{2})^n$
take the ln of both sides
$ln(\frac{0.01}{2}) = ln((\frac{1}{2})^n)$
$ln(\frac{0.01}{2}) = n ln(\frac{1}{2})$
divide both sides by ln(1/2)
$\frac{ln(\frac{0.01}{2})}{ln(\frac{1}{2})} =n$
use your calculatro to find that n≈7.64386
so on 7th jump, it is not yet at 1cm to the edge but at 8th jump, it is past
so 8th jump

7 0

3 years ago

Plz answer what is the x interster

Ira Lisetskai [31]

Answer:

Y intercept (0,2)

X intercept (3, 0)

Step-by-step explanation:

The y intercept is the value when x = 0 (or where it crosses the y axis)

Y intercept (0,2)

The x intercept is when y =0 ( or where it crosses the x axis)

X intercept (3, 0)

6 0

3 years ago

In ∆ KLM above, NO // ML and < KNO = < KON. Find m < MNL =

4vir4ik [10]

Answer: In ∆ KLM above, NO // ML and < KNO = < KON. Find m < MNL =

Step-by-step explanation: dUNNO

6 0

2 years ago

Rey feeds his dog 2/5 of a can of dog food in the morning and 4/5 of a can in the evening. How many cans of dog food will Rey ne

QveST [7]

Answer:

6 cans total if im correct

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2 years ago

What does S in Math means?

12345 [234]

Step-by-step explanation:

subtract

i think this

7 0

3 years ago