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2 years ago

I’m like actually failing

Mathematics

2 answers:

astraxan [27]2 years ago

8 0

Answer:

your doing better than I am, I got a 19 on the first test(・_・;)

goldenfox [79]2 years ago

4 0

lol same but I have an actual mental breakdown before I do homework every time

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Use linear approximation to approximate √25.3 as follows.

Sophie [7]

The idea is to use the tangent line to $f(x)=\sqrt x$ at $x=25$ in order to approximate $f(25.3)=\sqrt{25.3}$ .

We have

$f(x)=\sqrt x\implies f(25)=\sqrt{25}=5$

$f'(x)=\dfrac1{2\sqrt x}\implies f'(25)=\dfrac1{10}$

so the linear approximation to $f(x)$ is

$L(x)=f(5)+f'(5)(x-5)=5+\dfrac{x-5}{10}=\dfrac x{10}+\dfrac92$

Hence $m=\frac1{10}$ and $b=\frac92$ .

Then

$f(25.3)\approx L(25.3)=\dfrac{25.3}{10}+\dfrac92=\boxed{7.03}$

4 0

3 years ago

Work out, giving your answer in its simplest form: 3 1/2 ÷ 2 3/5

Alecsey [184]

Answer:

this is the ans- 3.36956522

7 0

3 years ago

I’m stuck and I would really like your help.

Neporo4naja [7]

Answer:

Answer: 1/12

Step-by-step explanation:

2/5x-4=8-3/5x.

We want to tank x out of the denominator by multiplying x on both sides.

2/5-4x=8x-3/5

Now we simplify

-12x=-1

x=1/12

Put x in the equation to check it

6 0

2 years ago

Read 2 more answers

Find the solution to the equation 1over 2 (t-6)=1

Fynjy0 [20]

Answer:

1/2(t-6)=1

1/2(t-6)=1x2

1/2(t-6)=2

t/2-6/2=2/1

t/2-3/1=2/1

t/2-3=2

t/2=2-3

t/2=-1

t/2=-1/1

t=-2x1

t=-2

6 0

3 years ago

Solve for x. 3/5x + 1/4x=51 x=?

Tanzania [10]

Answer:

x=60

Step-by-step explanation:

3/5x + 1/4x=51

12/20x+5/20x=51

17/20x=51

17x=1020

x=60

Double-Check:

3/5(60)+1/4(60)=51

180/5+60/4=51

36+15=51

51=51

Hope it helped!

5 0

3 years ago

Read 2 more answers