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2 years ago

Solve the linear system using multiplication Elimination. 4х + Зу = 8 X - 2y = 13

Mathematics

1 answer:

motikmotik2 years ago

5 0

X=5, y=-4
(5,-4)
do you need the work?

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Following the lead of the National Wildlife Federation, the Department of the Interior of a South American country began to reco

chubhunter [2.5K]

Answer:

After 2009 the quality of the forests in this country improving.

Step-by-step explanation:

Consider the provided function.

$f(t) = \frac{1}{3}t^3-\frac{5}{2}t^2 + 80$

$f'(t) = t^2-5t$

Substitute f'(t)=0.

$t^2-5t=0$

$t(t-5)=0$

$t=0\ or\ t=5$

It is given that (0 ≤ t ≤ 10)

The test interval are (0,5) and (5,10)

For (0 < t < 5) the value of $f'(t)$

For (5 < t < 10) the value of $f'(t) >0$

Hence, the function is increasing from (5,10).

t = 0 corresponds to 2004.

Therefore, after 2009 the quality of the forests in this country improving.

7 0

2 years ago

Ln(x+7)=3<br> This is part of a webquest any help would be nice.

Assoli18 [71]

ln(x−7)==4/3

To solve for x, rewrite the equation using properties of logarithms.

e^ln(x−7) =e^4/3

Solve for x

x=e^4/3 + 7

The result can be shown in multiple forms.

Exact Form:

x= e^4/3+7

Decimal Form:

x=10.79366789

5 0

2 years ago

Read 2 more answers

11x+16y=13 solve for y

suter [353]

11x+16y = 13

16y = -11x+13

y = -11/16x+13/16

3 0

2 years ago

I need help in not sure how to write a standard equation :(

adell [148]

Look at your picture

notice the coordinates for the center of the circle, the x,y or h,k values
notice how long the radius is

thus $\bf \qquad \textit{equation of a circle}
\\\\\\

(x-{{ h}})^2+(y-{{ k}})^2={{ r}}^2
\qquad center\ ({{ h}},{{ k}})\qquad
radius={{ r}}$

3 0

2 years ago

Which situation can be represented by the equation. Y+19=22

marusya05 [52]

Answer:3

Step-by-step explanation:

19 + 3=22

5 0

3 years ago