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3 years ago

x-10=4 what is the answer HELP!

Mathematics

1 answer:

Schach [20]3 years ago

5 0

Answer:

x = 14

Step-by-step explanation:

Add 10 to both sides.

x− 10 + 10 = 4 + 10

x=14

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If every 4 cm on a scale drawing is equal to 3 yards in real life, which of the scaled-drawing lengths below would be less than

WARRIOR [948]

Answer:

B and C

Step-by-step explanation:

Firstly do 16/4 which gives you 4 and then times that by 4 to give you 12 yards. Rinse and repeat this to find out how many yards are in each situation.

3 0

3 years ago

Find lim h->0 f(9+h)-f(9)/h if f(x)=x^4 a. 23 b. -2916 c. 2916 d. 2925

Svetach [21]

$\displaystyle\lim_{h\to0}\frac{f(9+h)-f(9)}h = \lim_{h\to0}\frac{(9+h)^4-9^4}h$

Carry out the binomial expansion in the numerator:

$(9+h)^4 = 9^4+4\times9^3h+6\times9^2h^2+4\times9h^3+h^4$

Then the 9⁴ terms cancel each other, so in the limit we have

$\displaystyle \lim_{h\to0}\frac{4\times9^3h+6\times9^2h^2+4\times9h^3+h^4}h$

Since h is approaching 0, that means h ≠ 0, so we can cancel the common factor of h in both numerator and denominator:

$\displaystyle \lim_{h\to0}(4\times9^3+6\times9^2h+4\times9h^2+h^3)$

Then when h converges to 0, each remaining term containing h goes to 0, leaving you with

$\displaystyle\lim_{h\to0}\frac{f(9+h)-f(9)}h = 4\times9^3 = \boxed{2916}$

or choice C.

Alternatively, you can recognize the given limit as the derivative of f(x) at x = 9:

$f'(x) = \displaystyle\lim_{h\to0}\frac{f(x+h)-f(x)}h \implies f'(9) = \lim_{h\to0}\frac{f(9+h)-f(9)}h$

We have f(x) = x ⁴, so f '(x) = 4x ³, and evaluating this at x = 9 gives the same result, 2916.

8 0

3 years ago

Please help.........

anygoal [31]

$-\dfrac{ax}{b}\geq c-d\ \ \ |\text{change the signs}\\\\\dfrac{ax}{b}\leq d-c\ \ \ |\cdot b\\\\ax\leq bd-bc\ \ \ \ |:a\\\\\boxed{x\leq\dfrac{bd-bc}{a}}$

3 0

3 years ago

A bag contains 3 red, 2 white, and 5 blue marbles. If one marble is drawn what is the probability that the marble will be red?

Rashid [163]

Answer:

3/10

Step-by-step explanation:

Given data

Sample space

3 red,

2 white, and

5 blue marbles.

Sample size

=3+2+5

=10

Hence the probability of picking a red marble is

=3/10

3 0

3 years ago

Can I get some help im stuck???

svetoff [14.1K]

Connor
Initial Value=200ft
Rate of Change=10ft/min

Pilar
Initial Value=242ft
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6 0

3 years ago

​ x-10=4 what is the answer HELP!

x-10=4 what is the answer HELP!