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Naddika [18.5K]
3 years ago
9

Can someone help me do this expression 6+(8÷2)-2+(4-1)

Mathematics
1 answer:
trasher [3.6K]3 years ago
3 0
<h3><u>QUES</u><u>TION</u><u>:</u></h3>

can someone help me do this expression 6+(8÷2)-2+(4-1)

<h3><u>SOLU</u><u>TION</u><u> AND</u><u> ANSWER</u><u>:</u></h3>

  • CALCULATING THE VALUE

Divide first 8 and 2 and subtract 4 - 1

\large \sf = 6 + 4 - 2 + (4 - 1)

\large \sf = 6 + 4 - 2 + 3

Lastly calculate the sum or difference

\sf \: calculate \: the \: sum \: of \: the  \: positive \: numbers \:  \:  \large \sf \rightarrow  \red{6 + 4} - 2  \red{+ 3}

\large \sf  = 13 - 2

\large \sf = 11

<h3><u>FINAL</u><u> </u><u>ANSWER</u><u>:</u></h3>

\huge \orange{ \underline{ \boxed{11}}}

HOPE THIS HELP YOU! HAVE A NICE DAY!

~kimtaetae92~

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An exponential function has a starting value of 13 and a growth rate of 0.78%. Write an equation to model the situation.
Elina [12.6K]

Answer:

The equation that models the situation is A(t) = 13(1.0078)^t

Step-by-step explanation:

Exponential equation:

An exponential equation has the following format:

A(t) = A(0)(1+r)^t

In which A(0) is the starting value and r is the growth rate, as a decimal.

Starting value of 13 and a growth rate of 0.78%.

This means that A(0) = 13, r = 0.0078

Write an equation to model the situation.

A(t) = A(0)(1+r)^t

A(t) = 13(1+0.0078)^t

A(t) = 13(1.0078)^t

The equation that models the situation is A(t) = 13(1.0078)^t

4 0
3 years ago
In a lab experiment, 80 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub
Effectus [21]

Answer:

The hourly growth rate is of 4.43%.

The function showing the number of bacteria after t hours is P(t) = 80(1.0443)^t

Step-by-step explanation:

Equation of population growth:

The equation for the population after t hours is given by:

P(t) = P(0)(1+r)^t

In which P(0) is the initial population and r is the growth rate, as a decimal.

The conditions are such that the number of bacteria is able to double every 16 hours.

This means that P(16) = 2P(0). We use this to find r.

P(t) = P(0)(1+r)^t

2P(0) = P(0)(1+r)^{16}

(1+r)^{16} = 2

\sqrt[16]{(1+r)^{16}} = \sqrt[16]{2}

1 + r = 2^{\frac{1}{16}}

1 + r = 1.0443

r = 1.0443 - 1

r = 0.0443

The hourly growth rate is of 4.43%.

80 bacteria are placed in a petri dish.

This means that P(0) = 80.

P(t) = P(0)(1+r)^t

P(t) = 80(1+0.0443)^t

P(t) = 80(1.0443)^t

The function showing the number of bacteria after t hours is P(t) = 80(1.0443)^t

6 0
3 years ago
HELP?? If one is added to a number and the sum is tripled the result is 19 more then the number. Find the number. Um?
Viefleur [7K]
<h3><u>The value of x is equal to 8.</u></h3>

3(x + 1) = 19 + x

<em><u>Distributive property.</u></em>

3x + 3 = 19 + x

<em><u>Subtract x from both sides.</u></em>

2x + 3 = 19

<em><u>Subtract 3 from both sides.</u></em>

2x = 16

<em><u>Divide both sides by 2.</u></em>

x = 8

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3 years ago
Evaluate the expression <br> 1.)3+4x2-6
kumpel [21]
3+4=7
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28-6=22
hope this helps you
8 0
4 years ago
If 2&gt; -a, then a &lt; -2.<br> True<br> False
Nonamiya [84]

Answer:

False

Step-by-step explanation:

Flip the equation.

−a<2

Divide both sides by -1.

a>−2

4 0
3 years ago
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