3 years ago

Automatic Zoom

Mathematics

1 answer:

Solnce55 [7]3 years ago

7 0

D! I’ve taken this

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What is -9+n/4=-7? Please explain in detail, I don’t really understand this at all.

Brrunno [24]

Answer:

n=-19

Step-by-step explanation:

-9+n/4=-7

Multiply 4 on both sides

-9+n=-28

Add 9 on both sides

n=-19

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3 years ago

the drama club has sold 942 tickets to their play if their theater seats 57 in each row how many full rows will be will there be

Triss [41]

There will be 235 rows fully filled but there will be half of one row that is extra

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3 years ago

Plssss help due today

asambeis [7]

160-80 = 80

80/2 = 40

angle BCD = 40 degrees

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3 years ago

You want $5000 4 years from nowfor a down payment for a car. How much money must be deposited monetly into an account earning 4.

timama [110]

Answer:

$95.5090 must be deposited monthly

Step-by-step explanation:

From the information given:

The annual interest rate (r) = 4.2% = 0.042

Let assume that an amount Y is deposited, then after one month, it will increase to:

$Y ( 1+ \dfrac{0.042}{12})$

The total amount after 4 years will be:

$= Y ( 1+ \dfrac{0.042}{12})^{48}+Y ( 1+ \dfrac{0.042}{12})^{47} +Y ( 1+ \dfrac{0.042}{12})^{46} +...+ Y ( 1+ \dfrac{0.042}{12})$

$= Y ( 1.0035)^{48}+Y ( 1.0035)^{47} +Y( 1.0035)^{46} +...+ Y( 1.0035)$

Using the sum of a geometric progression:

$= Y (1.0035) \dfrac{ (1.0035^{48}-1)}{(1.0035-1)}$

$= Y (1.0035) \dfrac{ (1.0035^{48}-1)}{0.0035}$

The above amount is then equal to $5000

i.e

$= Y (1.0035) \dfrac{ (1.0035^{48}-1)}{0.0035} = 5000$

$Y = \dfrac{5000\times 0.0035}{(1.0035)(1.0035^{48}-1)} \\ \\ \mathbf{Y = \$95.5090}$

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3 years ago

1:0,1+2:0,2+3:0,3...+9:0

s2008m [1.1K]

Answer:

Step-by-step explanation:

answeram I righatjfj

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3 years ago