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mel-nik [20]
2 years ago
13

Can somebody help solve either of these?

Mathematics
1 answer:
Leya [2.2K]2 years ago
8 0
First one:
The circumference of the whole circle is (2π x the radius), 
and 60° is (60/360) = 1/6 of the whole circumference.

Second one:
The area of the whole circle is (π x the radius²), and
the 40° sector is (40/360) = 1/9 of the whole area.

I hope this is enough help.
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<img src="https://tex.z-dn.net/?f=%20%7B10%7D%5Ex%20%3D%205" id="TexFormula1" title=" {10}^x = 5" alt=" {10}^x = 5" align="absmi
My name is Ann [436]

Answer:

below

Step-by-step explanation:

10ˣ = 5

applying log to both sides

xlog 10 = log5

x = 0•699

8 0
3 years ago
Suppose that the ages of cars driven by employees at a company are normally distributed with a mean of 8 years and a standard de
choli [55]

There follows the formula for "z-score:"

raw score - mean

z = ------------------------------

standard dev

9.1 - 8

Here, the z-score is z = ------------- = 0.344

3.2

6 0
3 years ago
Read 2 more answers
A line in the xy-plane that passes through the coordinate points (3, -6) and (–7, –4) will never intersecta line that is represe
anyanavicka [17]

Answer:

option A

Step-by-step explanation:

given coordinate (3, -6) and (–7, –4)

to find the equation of line

slope of the line passing through both the point will be

               m = \dfrac{y_2-y_1}{x_2-x_1}

               m = \dfrac{-4+6}{-7-3}

               m = -\dfrac{2}{10}

equation of line

( y - y₁ ) = m ( x - x₁ )

y + 6= -\dfrac{2}{10}(x - 3)

x + 5 y = -27

line which will not intersect will be parallel to it so option A has same slope as our line equation i.e. -1/5

hence, correct answer is option A

3 0
3 years ago
Write an expression that shows how to multiply 7x256 using expanded form and distributive property
Diano4ka-milaya [45]

7(200 + 50 + 6) = (7 x 200) + (7 x 50) + (7 x 6) = 1,400 + 350 + 42 = 1,792

3 0
3 years ago
2. In right triangle RST with right angle S the m4R = 24°. What is the
const2013 [10]

Sum of the interior angles of any triangle equal 180° ;

So :

90° + 24° + T = 180°

114° + T = 180°

subtract both sides 114

T = 180° - 114°

T = 66°

_________________________________

And we're done....

♥️♥️♥️♥️♥️

8 0
3 years ago
Read 2 more answers
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