3 years ago

Express the following in the form a + bi, where a and b are real numbers:

Mathematics

1 answer:

True [87]3 years ago

7 0

Sorry I don’t kno ……………..

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This is what the graph of in(x) looks like

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3 years ago

16. Solve 7n=42<br> 06<br> O n = 6<br> n = 7<br> O 7

Masteriza [31]

Answer:

Step-by-step explanation:

7n=42

n=42/7

n=6

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3 years ago

The perimeter of a rectangular metal plate is 15 cm. Find the length of the rectangular plate (in decimals) whose width is 228 c

scoray [572]

The Solution.

Representing the problem in a diagram, we have

By formula,

$P=2(L+W)$

In this case,

$P=15\operatorname{cm},L=?,W=\frac{22}{8}cm$

Substituting these values in the formula above, we get

$15=2(L+\frac{22}{8})$

Clearing the bracket, we get

$15=2L+(2\times\frac{22}{8})$ $\begin{gathered} 15=2L+\frac{11}{2} \\ \\ 15=2L+5.5 \end{gathered}$ $\begin{gathered} 15-5.5=2L \\ 9.5=2L \end{gathered}$

Dividing both sides by 2, we get

$L=\frac{9.5}{2}=4.75\approx4.8\operatorname{cm}$

Therefore, the correct answer is option C.

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1 year ago

A rectangular sign measures 8 m by 6.5 m. One litre of paint covers 14 square meters. How many litres of paint are needed to pai

Harlamova29_29 [7]

Answer:

7.4

Step-by-step explanation:

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3 years ago

The B737-400 aircraft costs $2948 dollars per hour to operate. The algebraic expression 2948t gives the total cost to operate th

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Answer:

The required cost is $10,612.8

Step-by-step explanation:

Find the value at t = 3.6:

2948t, t=3,6

Substitute t=3,6

Multiply 2948x3,6

Solution = 10612,8

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2 years ago