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TiliK225 [7]
3 years ago
8

Simplify to create an equivalent expression. −4(−11+4n)−3(−2n+9)

Mathematics
2 answers:
solmaris [256]3 years ago
5 0

-4(-11 + 4n) - 3(-2n + 9) Given

44 - 16n + 6n - 27 Distributive property

17 - 10n Combine like terms

17 - 10n is our final answer. :)

Jlenok [28]3 years ago
4 0

Answer:  The required simplified expression is 17-10n.

Step-by-step explanation:  We are given to simplify and create an equivalent expression from the following expression :

E=-4(-11+4n)-3(-2n+9)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To simplify the given expression, we need to evaluate the brackets first.

The simplification of expression (i) is as follows :

E\\\\=-4(-11+4n)-3(-2n+9)\\\\=44-16n+6n-27\\\\=17-10n.

Thus, the required simplified expression is 17-10n.

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Fed [463]

Answer:

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One formula for the reproduction of bacteria is

\dfrac{N}{N_{0}} = e^{kt}

Data:

N = 2

N₀ = 1

  t = 15 min

Calculation:

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6 0
3 years ago
7n2 + 5 = 453<br> Solve the quadratic function
Reptile [31]

7n^2 + 5 = 453

Subtract 5 from both sides:

7n^2 = 448

Divide both sides by 7:

N^2 = 64

Take the square root of both sides:

N = 8

8 0
3 years ago
Read 2 more answers
What is the value of x rounded to nearest tenth
Ivahew [28]

Answer:

6.5 cm

Step-by-step explanation:

Here, <em>the tangent line squared is equal to the secant line times the secant line outside the circle</em>.

That is <em>20.2² = 14.7 * (14.7 + 2x)</em> --> it is 2x because the secant goes through <em>the whole circle</em>.

Simplify: <em>408.04 = 216.09 + 29.4x</em>

Subtract: <em>191.95 = 29.4x</em>

Divide: <em>x = 6.528911565</em> ≈ 6.5 cm

5 0
3 years ago
Help!!! Two customers took out car loans from a bank.
Nikitich [7]

Answer:

  • Susan paid $2220 more

Step-by-step explanation:

<u>Use the interest formula:</u>

  • I = Prt, where P - amount of loan, r- interest rate, t- time in years

<u>Robert:</u>

  • I = 30000*(4.9/100)*4 = 5880

<u>Susan:</u>

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<u>Difference in amounts of interest:</u>

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8 0
2 years ago
Read 2 more answers
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Dafna11 [192]

Given equation : \frac{x}{42}=\frac{3}{7}.

Strategy 1: We can cross mutiply both sides remove fraction form.

On cross multiplication, we get

x * 7 = 3 * 42

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<h3>x = 18.</h3>

Strategy 2: We can find least common denominator(lcd) of both sides and multiplying both sides by that lcd to get rid denominators from both sides.

LCD of 42 and 7 is 42.

Therefore, multiplying both sides by 42, we get

42\times \frac{x}{42}=42\times\frac{3}{7}

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4 0
2 years ago
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