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3 years ago

PLZ HURRY IT'S URGENT!!!!!!

Mathematics

2 answers:

Gnom [1K]3 years ago

7 0

Answer:

D. 9

Step-by-step explanation:

We have been given an equation and we are asked to find the solution for our given equation.

$t(7-2)=9\cdot 7-9\cdot 2$

Upon factoring out 9 from right side of our equation we will get,

$t(7-2)=9(7-2)$

$t(5)=9(5)$

$5t=9*5$

Upon dividing both sides of our equation by 5 we will get,

$\frac{5t}{5}=\frac{9*5}{5}$

$x=9$

Therefore, the solution to our given equation is 9 and option D is the correct choice.

Anton [14]3 years ago

5 0

I think the correct answer your looking for is D) 9

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Find the linear approximation of the function g(x) = 3 root 1 + x at a = 0. g(x). Use it to approximate the numbers 3 root 0.95

Virty [35]

Answer:

$L(x)=1+\dfrac{1}{3}x$

$\sqrt[3]{0.95} \approx 0.9833$

$\sqrt[3]{1.1} \approx 1.0333$

Step-by-step explanation:

Given the function: $g(x)=\sqrt[3]{1+x}$

We are to determine the linear approximation of the function g(x) at a = 0.

Linear Approximating Polynomial, $L(x)=f(a)+f'(a)(x-a)$

a=0

$g(0)=\sqrt[3]{1+0}=1$

$g'(x)=\frac{1}{3}(1+x)^{-2/3} \\g'(0)=\frac{1}{3}(1+0)^{-2/3}=\frac{1}{3}$

Therefore:

$L(x)=1+\frac{1}{3}(x-0)\\\\$The linear approximating polynomial of g(x) is:$\\\\L(x)=1+\dfrac{1}{3}x$

(b) $\sqrt[3]{0.95}= \sqrt[3]{1-0.05}$

When x = - 0.05

$L(-0.05)=1+\dfrac{1}{3}(-0.05)=0.9833$

$\sqrt[3]{0.95} \approx 0.9833$

(c)

(b) $\sqrt[3]{1.1}= \sqrt[3]{1+0.1}$

When x = 0.1

$L(1.1)=1+\dfrac{1}{3}(0.1)=1.0333$

$\sqrt[3]{1.1} \approx 1.0333$

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3 years ago

Mr. Hartman, the school librarian, is ordering new keyboards and mice for all of the school's computer labs. Each keyboard costs

mario62 [17]

Answer:

3 * 20s

Step-by-step explanation:

In order to find out how much Mr. Hartman will spend in total we first need to multiply the price of the keyboard and mouse by the number of computers in a single computer station. Once we have these products we add them together. Finally, we multiply this new value by 3 since there are a total of 3 computer stations. If we turn this into an expression it would be the following...

3 * (13.50s + 6.50s)

We can even simplify this by first adding the cost of the keyboard and mouse and then multiplying by s

3 * 20s

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snow_tiger [21]

What you want to first is substitute the numbers in for the variables in the equation

Since b= -5 , we will plug it in for -b

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Now plug in -8 for c

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Add the numbers on the left side, which gives you -13.

-13 = -13x

Lastly, divide both sides by -13x, which will give you 1.

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8_murik_8 [283]

5 and 3/5 is 5.75 as a decimal

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3 years ago

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AfilCa [17]

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It is the same as multiplying the quantity in parentheses by -1.

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Now, subtract 12x from both sides.

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Subtract 6 from both sides.

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