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marin [14]
3 years ago
7

The temperature of magnesium must be at least 650° for the metal to melt. A sample of magnesium is currently 255°. The temperatu

re of the magnesium is increased by 10° every minute. Which inequality shows the number of minutes (m) needed to raise the temperature to the melting point?
answer: m>_39.5
Mathematics
2 answers:
brilliants [131]3 years ago
6 0

Answer:

You're right....

Kobotan [32]3 years ago
6 0

Answer:

isn´t  m>39.5   the answer?

Step-by-step explanation:

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The car can travel 75 miles on 2 1/2 gal. of gas
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3 years ago
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Sherry bought a sport utility vehicle. She received a discount of 18% off the manufacturer's list price but then had to pay 8% s
Kazeer [188]

Answer:

x = $20,000

the manufacturer's list price is $20,000

Step-by-step explanation:

Let x represent the manufacturer's list price.

And c the amount she finally paid

Given that;

She received a discount of 18% off the manufacturer's list price

= x - 18%x

= x - 0.18x

= 0.82x

then had to pay 8% state sales tax.

C = (0.82x) + 8% of (0.82x)

C = 0.82x + 0.08(0.82x)

C = 0.82x + 0.0656x

C = 0.8856x

Since she paid $17,712

C = $17,712

C = $17,712 = 0.8856x

0.8856x = $17,712

x = $17,712/0.8856

x = $20,000

the manufacturer's list price is $20,000

7 0
3 years ago
If m ≤ f(x) ≤ M for a ≤ x ≤ b, where m is the absolute minimum and M is the absolute maximum of f on the interval [a, b], then
agasfer [191]

Answer:

smaller value is 1.2

larger value is 6

Step-by-step explanation:

f(x)=\frac{3}{1+x^{2} }

when x=a=0, one has

f(0)=\frac{3}{1+0^{2} } \\f(0)=3

now, when x=b=2, one has

f(2)=\frac{3}{1+2^{2} } \\f(2)=\frac{3}{5}

Therefore, the absolute minumun is

m=\frac{3}{5}

and the absolute maximun is

M=3

The approximation to the integral is

\frac{3}{5}(2-0)\leq \int\limits^2_0 {f(x)} \, dx  \leq 3(2-0)

hence

\frac{3}{5}(2)\leq \int\limits^2_0 {f(x)} \, dx  \leq 3(2)\\\frac{6}{5} \leq \int\limits^2_0 {f(x)} \, dx  \leq 6\\1.2 \leq \int\limits^2_0 {f(x)} \, dx  \leq 6

7 0
4 years ago
What is -5/6 time -6/5
AURORKA [14]

Answer:

1

Step-by-step explanation:

you are just multiplying by the reciprocal here which would make this equal to 1

4 0
3 years ago
Which is the correct classification for the triangle?
kondaur [170]
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obtuse means at lesat 1 angle is more than 90 degrees

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s we solve for thierd angle
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subtract 80
x=100
100>90

obtuse angle is answer
4 0
3 years ago
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