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4 years ago

Help plz 25 points If you comment but Its not a answer im going to report u

Mathematics

1 answer:

WARRIOR [948]4 years ago

3 0

1. 2
2. 1
3. 6
I'll post the rest in the comments

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Calculus I Related Rates:

Nezavi [6.7K]

Let s be the hypotenuse and using the Pythgorean theorem,

s2 = 25 + x2taking the first derivative of the function with respect to t, the result is 2s ds /dt = 2x dx/ dtsubstituting s = 10 and ds/dt= 240,
we get x = sqrt(100-25) = 5√3

3 0

3 years ago

each day you do homework for m minutes and watch tv for 30 minutes. Which expression can you use to find how many minutes you do

juin [17]

30+m= T for Total. umm sorry but I just have to have 20 characters to give you this answer

8 0

4 years ago

This net folds into a cube. Which two letters appear on opposite faces?

Eddi Din [679]

Answer:

Step-by-step explanation:

'Net' is used to refer to a plane shape that can be folded into some solid shape. Here, the net folds to form a cube.

Here, the letter F will be opposite to D (D will appear opposite to F),

E will appear opposite to B (B will be opposite to E),

and A will be opposite to C (C will appear opposite to A).

8 0

3 years ago

The explicit formula for the geometric sequence Negative one-ninth, one-third, negative 1, 3, negative 9, ellipsis is f (x) = ne

storchak [24]

Answer:

Common ratio, r=-3

Recursive Formula

$f(n)=-3f(n-1),$ $n\geq 2\\f(1)=-\dfrac{1}{9},$

Step-by-step explanation:

The formula for the geometric sequence: $-\dfrac{1}{9} ,\dfrac{1}{3}, -1,3,-9,\cdots$ is given as:

$f(x)=-\dfrac{1}{9}(-3)^{x-1}$

Common Ratio

Dividing the next terms by the previous terms, we obtain:

$\dfrac{1}{3} \div -\dfrac{1}{9} = \dfrac{1}{3} \times -9 =-3\\3 \div -1 =-3\\-9 \div 3 =-3$

Therefore, the common ratio of the sequence, r=-3

Recursive Formula

We observe that the next term, $f(n)$ is obtained by the multiplication of the previous term. f(n-1) by -3.

Therefore, a recursive formula for the sequence is:

$f(n)=-3f(n-1),$ $n\geq 2\\f(1)=-\dfrac{1}{9},$

3 0

3 years ago

A checking account rounds the amount of money deposited to the nearest hundredths place. After tax returns on April 15th, Yuan e

ludmilkaskok [199]

Answer:

$\boxed{\text{\$336.35}}$

Step-by-step explanation:

Yuan earned $336.3457.

You are asked to round this number to the nearest hundredth, that is, so there are only two digits after the decimal.

$336.34|57

A rule in rounding numbers is: if the first figure to be dropped is 5 with any nonzero digits following it, then the last figure kept should be rounded up (increased by 1).

The number becomes $336.35.

$\boxed{\large \textbf{\$336.35}} \text{ was placed in Yuan's checking account}$

6 0

4 years ago