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2 years ago

13

Select the numeral form of this number written in scientific notation. 5 × 10^3

1 answer:

FinnZ [79.3K]2 years ago

7 0

$5 \times 10^3 = 5,000$

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If 2x + 5y = -5 what is x if y = -5<br> HELP ASAP

mash [69]

Answer:

x=10

Step-by-step explanation:

first substitute y with the value (-5)

2x+5(-5)=-5 which is simplified to 2x+-25=-5

add 25 to -5 which gives you 2x=20

then divide 20 by 2 which makes x=10

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2 years ago

A geometric sequence has a4 = 4 and a5 = 7. What is a1 ? Your answer

svetlana [45]

Answer:

4⁴/7³ or 256/343

Step-by-step explanation:

<u>Given GP with </u>

a₄ = 4
a₅ = 7
a₁ = ?

<u>Let the common difference is r, then</u>

a₅ = a₄r
a₁r³ = 4
a₁r⁴ = 7

<u>Solve for r and then a₁:</u>

4r = 7 ⇒ r = 7/4
a₁(7/4)³ = 4
a₁ = 4*(4/7)³ = 4⁴/7³ = 256/343

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3 years ago

What is the range of y =5/2(x-2)² - 4

blagie [28]

Answer:

vertex:(2,-4)

Focus:(2,- $\frac{39}{10}$ )

Axis of symmetry :x=2

Directrixt: y=- $\frac{41}{10}$

Step-by-step explanation:

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3 years ago

PLEASE HELPPPPPP ME

seraphim [82]

Answer:

True

Step-by-step explanation:

Do the working for it and youll find the answer

$1 + cosa$

$\pi$

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2 years ago

What is nine divided by five and one fourths

blsea [12.9K]

The answer is 1.7142

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3 years ago

Read 2 more answers