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lianna [129]
3 years ago
7

I need to know what this is asap

Mathematics
1 answer:
natka813 [3]3 years ago
6 0
First you solve what is in the parentheses so
15 - 8 = 7
then what is in the brackets
7 +7 = 14
then multiply
6 × 14 = 84
then divide
84 ÷ 3 = 28
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If dy/dx=4y and y=4 when x=0, then y=. A) 4e^4x. B) e^4x. C) 3+e^4x. D) 4+e^4x. e) 2x^2+4
aliina [53]
Hello,

dy/dx=4==>dy/y=4dx==>ln(y)=4x+C
==>y=k*e^(4x)
if x=0 y=4==>4=k*e^(4*0)==>k=4

==>y=4*e^(4x)

Answer A (with parenthesis!!!)
8 0
3 years ago
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jolli1 [7]

Answer:

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Step-by-step explanation:

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3 years ago
The endpoints of WX are W(2,-7) and X(5,-4). What is the length of WX?
ss7ja [257]

Answer:

<h2>WX = 3√2 units </h2>

Step-by-step explanation:

Using the formula for calculating the distance between two points to calculate the length of WX.

D = √(y₂-y₁)²+(x₂-x₁)²

Given the endpoints W(2,-7) and X(5,-4), x₁ = 2, y₁ = -7, x₂ = 5 and y₂ = -4

Substituting this values into the formula to get the length of WX will give;

WX = √(-4-(-7))²+(5-2)²

WX = √(-4+7)²+3²

WX = √3²+3²

WX = √18

WX = √2*9

WX = 3√2 units

Hence the length of WX is 3√2 units.

6 0
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What is 243,875 rounded<br><br> to the nearest tenth, hundredth, ten and hundred?
Irina18 [472]

Answer:

tenth: 243.9

hundredth: 243.88

ten: 240

hundred: 200

Step-by-step explanation:

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