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uysha [10]
3 years ago
9

If x=6 and y=−4, evaluate the following expression:10+5xy​

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0

Answer:

-110

Step-by-step explanation:

10+5xy

10+5(6)(-4)

10+30(-4)

10+(-120)

10-120

-110

Rzqust [24]3 years ago
3 0

Answer and Step-by-step explanation:

<u>Plug in the values 6 and -4 for x and y respectively.</u>

10 + 5(6)(-4)

<u>Multiply 5 and 6 to get 30.</u>

10 + 30(-4)

<u>Multiply 30 and -4 to get -120</u>

10 - 120

<u>Subtract 120 from 10 to get -110.</u>

-110

<u>The value of the expression is -110.</u>

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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Step-by-step explanation:

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zepelin [54]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
its 76 degrees fahrenheit at the 6000-foot level of a mountain, and 49 degrees Fahrenheit at the 12000-foot level of the mountai
brilliants [131]

T = \frac{-9}{2}x + 103 is the linear equation to find the temperature T at an elevation x on the mountain, where x is in thousands of feet.

<em><u>Solution:</u></em>

The linear equation in slope intercept form is given as:

T = cx + k ------ (i)

Where "t" is the temperature at an elevation x

And x is in thousands of feet

<em><u>Given that its 76 degrees fahrenheit at the 6000-foot level of a mountain</u></em>

Given, when c = 6 thousand ft and T = 76^{\circ} fahrenheit

This implies,

From (i)

76 = c(6) + k

76 = 6c + k

⇒ k = 76 - 6c  ----- (ii)

<em><u>Given that 49 degrees Fahrenheit at the 12000-foot level of the mountain</u></em>

Given, when c = 12 thousand ft and T = 49^{\circ} fahrenheit

This implies,

From (i)

49 = c(12) + k

49 = 12c + k

Substitute (ii) in above equation

49 = 12c + (76 - 6c)

49 = 12c + 76 - 6c

49 - 76 = 6c

6c = -27

c = \frac{-9}{2}

Substituting the value of c in (ii) we get

k = 76 - 6( \frac{-9}{2})\\\\k = 76 + 27 = 103

Substituting the value of c and k in (i)

T = \frac{-9}{2}x + 103

Where "x" is in thousands of feet

Thus the required linear equation is found

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3 years ago
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Answer:

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Answer: D) Flat area with a large number of plants

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The steeper slope means gravity pulls down the soil material faster, since there is less ground in the way to hold it up, so to speak. So flatter areas are less prone to erosion compared to steeper areas.

So that's why overall, flatter areas with lots of plants would have the least erosion.

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