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3 years ago

Convert 7 centimeters to meters. 7cm=?m

Mathematics

2 answers:

MatroZZZ [7]3 years ago

4 0

Answer:

0.07 m

Step-by-step explanation:

7 cm to m

Divide 7 by 100 (°•° 1m=100cm)

=7/100

=0.07

tigry1 [53]3 years ago

4 0

Fewer units than orig. :)

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In a U. S . Poll 8 out of 12 citizens said they were happy with the job Obama is doing. If 126 people were surveyed...

Solnce55 [7]

8 out of 12 people were happy.

8/12 reduces to 2/3 of the people were happy.

Multiply the total people surveyed by 2/3:

126 x 2/3 = (126 x 2) /3 = 252/3 = 84

84 people were happy.

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3 years ago

Any help with this greatly appreciated.

Anestetic [448]

Put the equation in standard linear form.

$x'(t) + \dfrac{x(t)}{t + 5} = 5e^{5t}$

Find the integrating factor.

$\mu = \exp\left(\displaystyle \int \frac{dt}{t+5}\right) = e^{\ln|t+5|} = t+5$

Multiply both sides by $\mu$ .

$(t+5) x'(t) + x(t) = 5(t+5)e^{5t}$

Now the left side the derivative of a product,

$\bigg((t+5) x(t)\bigg)' = 5(t+5)e^{5t}$

Integrate both sides.

$(t+5) x(t) = \displaystyle 5 \int (t+5) e^{5t} \, dt$

On the right side, integrate by parts.

$(t+5) x(t) = \dfrac15 (5t+24) e^{5t} + C$

Solve for $x(t)$ .

$\boxed{x(t) = \dfrac{5t+24}{5t+25} e^{5t} + \dfrac C{t+5}}$

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2 years ago

Х- 1, 2, 3 ,4

Len [333]

I think it’s C, good luck

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3 years ago

Is (x-2) a factor of f(x) = (4x +13x +10)?

Inessa [10]

Answer:

Step-by-step explanation:

No but it is close. (4x +13x +10) factors into

(4x + 5)(x + 2)

So (x + 2) is a factor along with (4x + 5)

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3 years ago

Solve for x and y:<br> x+y=5 x−y=a <br> PLEASE I NEED MY ANSWER TILL TOMORROW MORNING!

KengaRu [80]

Answer:

x= $\frac{a+5}{2}$ y=5- $\frac{a+5}{2}$

Step-by-step explanation:

x+y=5

y=5-x

x-y=a

x-(5-x)=a

2x-5=a

2x=a+5

x= $\frac{a+5}{2}$

x+y=5

$\frac{a+5}{2}$ +y=5

y=5- $\frac{a+5}{2}$

7 0

4 years ago

Read 2 more answers