2 years ago

Which product has 4 zeroes after the degit 3

Mathematics

1 answer:

valentina_108 [34]2 years ago

7 0

0.3 X 10 to the power of 5!

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Which two numbers on the number line have an absolute value of 2.75?

AysviL [449]

Answer:

2.75 and -2.75

Step-by-step explanation:

The absolute value of 2.75 is 2.75 and the absolute value of -2.75 is 2.75

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2 years ago

Calculate the first and second

LenKa [72]

Answer:

Hi,

Step-by-step explanation:

$\begin{array}{|c|c|c|c|}x&3x^2+5&\Delta_1x&\Delta_2x\\--&--&--&--\\0&5&-&-\\1&8&3&-\\2&17&9&6\\3&32&15&6\\4&53&21&6\\--&--&--&--\\\end{array}$

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2 years ago

Find the exact value of sin 105 degrees

STALIN [3.7K]

Answer:

$\frac{\sqrt{6}+\sqrt{2}}{4}$

Step-by-step explanation:

I'm going to write 105 as a sum of numbers on the unit circle.

If I do that, I must use the sum identity for sine.

$\sin(105)=\sin(60+45)$

$\sin(60)\cos(45)+\sin(45)\cos(60)$

Plug in the values for sin(60),cos(45), sin(45),cos(60)

$\frac{\sqrt{3}}{2}\frac{\sqrt{2}}{2}+\frac{\sqrt{2}}{2}\frac{1}{2}$

$\frac{\sqrt{3}\sqrt{2}+\sqrt{2}}{4}$

$\frac{\sqrt{6}+\sqrt{2}}{4}$

4 0

3 years ago

Read 2 more answers

A) A quadrilateral has two pairs of parallel sides and no right angles what two shapes could it be

Vadim26 [7]

Step-by-step explanation:

A. parallelogram & Rhombus

B. trapezium

5 0

3 years ago

If x=-7 is a root of the equation x^2+kx+49=0, then k=

aleksley [76]

Answer:

$k=14$

Step-by-step explanation:

Given:

$x^{2}+kx+49 = 0$

$x = -7$

Substitution can be used to find the value of $k$ :

$(-7)^{2}+(-7)k+49 = 0$

$49-7k+49 = 0$

$98 -7k = 0$

$k = 14$

Hope this helps :)

8 0

3 years ago