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julia-pushkina [17]

2 years ago

8

I don't know what to do.

1 answer:

mezya [45]2 years ago

7 0

Photo-math take a picture of your problem and it will give you your answer

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What is 60 divided by 5 +1 X(12-6)? ....(step by step)what to do

natita [175]

Answer:

5.455

Step by step explanation

Going by BODMAS

Bracket=(12-6)=6

Multiplication =(1*6)=6

Addition=(5+6)=11

Therefore; 60/11=5.455

5 0

3 years ago

4 (j+17) -1 is greater than or equal to 19

Mars2501 [29]

$4(j+17)-1\geq19\qquad\text{use distributive property}\\\\4j+68-1\geq19\\\\4j+67\geq19\qquad\text{subtract 67 from both sides}\\\\4j\geq-48\qquad\text{divide both sides by 4}\\\\j\geq-12$

8 0

3 years ago

Read 2 more answers

Calc help pretty please

Gre4nikov [31]

Answer:

A. 77.4

Step-by-step explanation:

<u>Linear approximation formula</u>

$L(x)=f(a)+f'(a)(x-a)$

Given function:

$f(x)=(x+1)^2$

$\boxed{\begin{minipage}{5.4 cm}\underline{Chain Rule for Differentiation}\\\\If $y=f(u)$ and $u=g(x)$ then:\\\\$\dfrac{\text{d}y}{\text{d}x}=\dfrac{\text{d}y}{\text{d}u}\times \dfrac{\text{d}u}{\text{d}x}$\\\end{minipage}}$

$\boxed{\begin{minipage}{5 cm}\underline{Differentiating $x^n$}\\\\If $y=x^n$, then $\dfrac{\text{d}y}{\text{d}x}=xn^{n-1}$\\\end{minipage}}$

$\boxed{\begin{minipage}{4 cm}\underline{Differentiating $ax$}\\\\If $y=ax$, then $\dfrac{\text{d}y}{\text{d}x}=a$\\\end{minipage}}$

Use the chain rule to differentiate the function.

$\textsf{Let }\:y=u^2\:\textsf{ where }u=(x+1)$

Differentiate the two parts separately:

$y=u^2 \implies \dfrac{\text{d}y}{\text{d}u}=2u$

$u=x+1 \implies \dfrac{\text{d}u}{\text{d}x}=1$

Put everything back into the chain rule formula:

$\begin{aligned} \implies \dfrac{\text{d}y}{\text{d}x} & =2u \times 1\\ & = 2u \\ & = 2(x+1)\\ & = 2x+2 \end{aligned}$

$\textsf{Therefore, }\:f'(x)=2x+2.$ .

The <u>linear approximation</u> at a = 8 is:

$\begin{aligned}L(x) & =f(a)+f'(a)(x-a)\\\\\implies L(x) & = f(8)+f'(8)(x-8)\\& = (8+1)^2+(2(8)+2)(x-8)\\& = 81+18(x-8)\\& = 18x-63\end{aligned}$

Finally, substitute x = 7.8 into the <u>linear approximation equation</u>:

$\begin{aligned}\implies L(7.8) & =18(7.8)-63\\& = 140.4-63\\& = 77.4\end{aligned}$

4 0

1 year ago

Read 2 more answers

1. In the expression 9x-11.9 is a coefficient

dem82 [27]

Answer:

9 is a coefficient

Step-by-step explanation:

9x-11.9

A coefficient is the number in front of the variable

9 is a coefficient and -11.9 is a constant

3 0

2 years ago

If 103* = 4, find 1009x-2.

nata0808 [166]

Answer:

if i understand,it will be -2018

Step-by-step explanation:

sorry

4 0

1 year ago