1 year ago

Evaluate 2-(-4) + (-g) where y= 7.

Mathematics

1 answer:

Phantasy [73]1 year ago

4 0

Answer:

Step-by-step explanation:

2 - (-4) + (-y)

Substitute y = 7 to the expression:

2 - (-4) + (-7) = 2 + 4 - 7 = 6 - 7 = -1

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Calculate the distance between the two given point T(6,-2),U(-2,-12)

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Use the distance formula: $\sqrt{(x2 - x1)^2 + (y2 - y1)^2}$

(6, -2), (-2, -12)
$\sqrt{(-2 - 6)^2 + (-12 - -2)^2}$ ⇒ $\sqrt{(-8)^2 + (-10)^2}$
$\sqrt{64 + 100}$ ⇒ $\sqrt{164}$
$\sqrt{164}$ = 12.8

The distance between points T and U is 12.8 units.

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Step-by-step explanation:

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Step-by-step explanation:

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1 year ago

The class treasury contained 30$ in nickels and dimes. If there were 500 coins than how many coins of each type are there?

Alenkasestr [34]

Equation 1. N+D=500

equation 2 5N+10D=3000
This is for equation 1
N=500-d
Substitute into equations 2 and solve for D
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2 years ago

Hi.

Keith_Richards [23]

Answer:

Thank you so much made my day!

Step-by-step explanation:

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