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3 years ago

If x=4 and y=3, what is the value of x-3y²?

Mathematics

1 answer:

Lynna [10]3 years ago

3 0

The answer is -77.I hope this helped you.

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Solve for x. −2x−1+3x=7 x=−2 x=−1 x = 6 x = 8

Vadim26 [7]

Answer:

x=8 is the answer. x-1=7 => x=7+1= 8

8 0

3 years ago

A bacteria colony increases in size at a rate of 4.0565e1.3t bacteria per hour. If the initial population is 54 bacteria, find t

Dovator [93]

Answer:

Population of bacteria four hours later $A=616.5187$ or nearest whole number

$A=616$

Step-by-step explanation:

Given,

Let amount of bacteria four hours later is=A

Rate of increase of bacteria per hour $=\frac{\partial x}{\partial t}=4.0565e^{1.3t}$

Initial population of bacteria is =54

Time 4 hours

Find the population of bacteria 4 hours later

Solution,

$\int_{54}^{A}dx=\int_{0}^{4}4.0565e^{1.3t}dt$

$\left [ x \right ]_{54}^{A}=4.0565/1.3\left [e^{1.3t} \right ]_{0}^{4}$

$A-54=4.0565/1.3\left ( e^{1.3\times 4} -1\right )$

$A-54=562.5187301$

$A=562.5187301+54$

$A=616.5187$

Population of bacteria 4 hours later is $A=616$

8 0

4 years ago

5 Points, Time Limit, Brainliest, Please don't spam, Thanks!

Sergeeva-Olga [200]

The awnser is 1/8
There are 20 different and 5 of them are yellow. 1/4 of them are yellow
1/2 chance of the coin have tails up
1/4 × 1/2 = 1/8
hope it helps

3 0

3 years ago

Read 2 more answers

Pls help due in 15 mins

solmaris [256]

1) y = 8 x = 7.5
2) y = 3 x = 12

5 0

3 years ago

Read 2 more answers

What is a + b whole square formula

emmainna [20.7K]

Answer:

The a+b whole square is used as a formula to expand it as an algebraic expression a2+2ab+b2 a 2 + 2 a b + b 2 in mathematics.

Step-by-step explanation:

Thank you good luck on your assignment!

~Evelyn

3 0

3 years ago