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3 years ago

Simplify this question

Mathematics

2 answers:

Ne4ueva [31]3 years ago

8 0

$4 + \sqrt{ - 16} \\ = 4 + \sqrt{ - 2 \times 2 \times 2 \times 2} \\ = 4 + 2\sqrt{ - 4} \\ = 2(2 + \sqrt{ - 4} )$

Hope you could get an idea from here.

Doubt clarification - use comment section.

lutik1710 [3]3 years ago

6 0

$\\ \sf\longmapsto 4+√-16$

$\\ \sf\longmapsto 4+√16i$

$\\ \sf\longmapsto 4+4i$

Take 4common

$\\ \sf\longmapsto 4(1+i)$

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What is the value of y ? <br> y=-2x+4?

sineoko [7]

Answer:

y = 4 + -2x

Step-by-step explanation:

Simplifying

y = -2x + 4

Reorder the terms:

y = 4 + -2x

Solving

y = 4 + -2x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying

y = 4 + -2x

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4 years ago

The diagram shows a parallelogram. 4 cm 7 cm 100° Work out the area of the parallelogram. Give your answer to 2 significant figu

san4es73 [151]

Answer:

Answer:

27.44 square cm

Step-by-step explanation:

If the length of parallelogram is a and b and angle between side a and b is .

Then area of parallelogram =

Given side length 4 cm and 7 cm

angle between them = 100°

value of sin(100°) = 0.98

Thus, area of given parallelogram = 4*7*sin(100°) = 28*0.98 = 27.44

Thus, area of given parallelogram is 27.44 square cm.

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2 years ago

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adelina 88 [10]

Answer: 2x - 1 (+x) =19

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3 years ago

Convert to proper fraction or mixed number (do not reduce to lowest terms): .851

Veronika [31]

Just look at where the 1 is at and then divide it by the place value. The 1 is in the thousandths place so the fraction would look like the following

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3 years ago

Read 2 more answers

The graph of y=3x^2-3x-1 is shown. Use the graph to find estimates for the solutions of i)3x^2-3x+2=2 ii) 3x^2-3x-1=x+1

AlexFokin [52]

Answer:

i) (0, 2) and (1, 2), ii) (0.333, 1.333) and (1, 2).

Step-by-step explanation:

i) Let be $y=3\cdot x^{2}-3\cdot x -1$ , if $3\cdot x^{2}-3\cdot x +2 = 2$ , which is equivalent to the following system of equations:

$y = 3\cdot x^{2}-3\cdot x +2$

$y = 2$

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0, 2) and (1, 2)

ii) Let be $y=3\cdot x^{2}-3\cdot x -1$ , if $3\cdot x^{2}-3\cdot x +2 = x+1$ , which is equivalent to the following system of equations:

$y = 3\cdot x^{2}-3\cdot x +2$

$y = x+1$

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0.333, 1.333) and (1, 2)

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4 years ago