4 years ago

Need help for both 19 and 20

Mathematics

1 answer:

Mazyrski [523]4 years ago

8 0

Add the sum and than subtract the sum

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Find the initial amount a and the decay factor b in the exponential function y=5.05^x

kvasek [131]

Answer:

$a = 5$

$b = .05$

Step-by-step explanation:

Given

$y = 5\ .05^x$

Required

Determine a and b

An exponential function is represented as:

$y =ab^x$

By comparing: $y =ab^x$ with $y = 5\ .05^x$

$a = 5$

$b = .05$

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3 years ago

An airplane flies 105 miles in 1/2 hour how far can it fly in 1 and 1/4 at the same rate of speed

Zigmanuir [339]

262.5 miles.

105 x 2 = 210

105 ÷ 2 = 52.2

210 + 52.2 = 262.5 miles

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4 years ago

Which operation should you do first 8 +3(7×4)-5÷2

Wewaii [24]

Alsways do

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6 0

3 years ago

Read 2 more answers

When simplifying the fraction 2x/4, madison wrote 2x/4 = 2x. EXPLAIN WHY her answer is wrong and write the correct answer.

antiseptic1488 [7]

Answer:

x/2

Step-by-step explanation:

Madison didn't cancel the common factor of 2 and that 4 that is why she is wrong.

Hope this helps pls brainliest have a nice day :>

5 0

2 years ago

Polygon ABCD is dilated by a scale factor of 2 with the center of dilation at the origin to create A'B'C'D'. If the endpoints of

Sonja [21]

The distance formula is given by $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Take point A(0, -7) as (x₁, x₂) and point B(8, 8) as (y₁, y₂)

Distance AB = $\sqrt{(8-0)^2+(8--7)^2}$
Distance AB = $\sqrt{8^2+15^2}$
Distance AB = $\sqrt{289}$
Distance AB = 17

The line AB is dilated to A'B' by scale factor of 2, it means the length of the line is multiplied by 2

Distance A'B' = 2 × 17 = 34 units

5 0

3 years ago