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3 years ago

I need help with these word problems

Mathematics

1 answer:

alexira [117]3 years ago

3 0

Why cant you figure it out your self they arent thet hard

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PLEASE HELP ASAP OFFERING 20 POINTS TO CORRECT ANSWER

Inessa [10]

Answer:

q(x) = 0.005 (x - 40)∧2 + 70

Step-by-step explanation:

If you mean with "up" that function is translated along the y axis

in that case the correct answer is:

q(x) = 0.005 (x - 40)∧2 + 70

God with you!!!

5 0

4 years ago

WILL MARK BRAINLIEST HELP ASAP

kenny6666 [7]

All sides are congruent

7 0

4 years ago

Read 2 more answers

Please help me!! Very important

givi [52]

3x+2y=50
x+y=19
x=12, y=7
12 jumps, 7 "raise the roof"s

3 0

4 years ago

Read 2 more answers

1. Darla's piggy bank is full, so she plans to empty out all of the coins, roll as many as possible to deposit

Maurinko [17]

Answer:

The number of coins is missing, so I looked for a similar question:

Darla counted 472 pennies, 319 nickels, 436 dimes, and 271 quarters

Darla can make:

9 rolls of pennies (worth $4.50)

7 rolls of nickels (worth $14)

8 rolls of dimes (worth $40)

<u>6 rolls of quarters (worth $60)</u>

total amount of money = $118.50

4 0

3 years ago

One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, 1883. According to barom

liraira [26]

Answer:

150.51 dB

Step-by-step explanation:

Data provided in the question:

decibel level of sound at 161 km distance = 180 dB

d₁ = 161 km

d₂ = 4800 km

I₁ = 180 db

The formula for intensity of sound is given as:

I = $10\log(\frac{I_2}{I_1})$

and the relation between intensity and distance is given as:

I ∝ $\frac{1}{d^2}$

Id² = constant

thus,

I₁d₁² = I₂d₂²

$\frac{I_2}{I_1}=\frac{d_1}{d_2}$

therefore,

I = $10\log(\frac{d_1}{d_2})^2$

I = $10\times2\times\log(\frac{161}{4,800})$

I = 20 × (-1.474)

I = -29.49

Therefore,

the decibel level on Rodriguez Island, 4,800 km away

= 180 - 29.49

= 150.51 dB

8 0

3 years ago