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NemiM [27]
2 years ago
13

The combined mean and variance of falary of 250 workers of city A and B are 560 and 5497

Mathematics
1 answer:
exis [7]2 years ago
7 0
I don’t know the answer to the question but I don’t know what to do with the question question but I don’t know what to do with the A 560
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<img src="https://tex.z-dn.net/?f=8%20-%203w%20%3D%20%20-%202w" id="TexFormula1" title="8 - 3w = - 2w" alt="8 - 3w = - 2w" ali
lapo4ka [179]

3w+8=50

3w=50-8=42

w= 42/3=14

7 0
3 years ago
What’s 4/5 times 2/3
maxonik [38]

Answer:

8/15

Step-by-step explanation:

When multiplying fractions, simply multiply the numbers straight across. First, multiply the numerators to get 8. Then, multiply the denominators and you'll get 15.

6 0
3 years ago
Read 2 more answers
How to find area of this kite?
Y_Kistochka [10]
You can seperate it into two triangles then take the area of each of those (a=1/2bh) and add each triangles area together
7 0
3 years ago
The straight lines passing through these pairs of points (2, 5) and (4, 7) ,(−4, 2) and (1, 7) are,
Taya2010 [7]

Answer:

The line passes (2, 5) and (4, 7) has slope:

S = (7 - 5)/(4 - 2) = 2/2 = 1

The line passes (1, 7) and (-4, 2) has slope:

S = (2 - 7)/(-4 - 4) = 5/-5 = -1

The multiplication of two slope is  1 x (-1) = -1

=> Two lines are perpendicular

Hope this helps!

:)

5 0
3 years ago
Read 2 more answers
1) 3х • 3х<br> Can someone help please I don’t get this shiii
olga nikolaevna [1]
Take out the constants.
(
3
×
3
)
x
x
(3×3)xx

2 Simplify
3
×
3
3×3 to
9
9.
9
x
x
9xx

3 Use Product Rule:
x
a
x
b
=
x
a
+
b
x
​a
​​ x
​b
​​ =x
​a+b
​​ .
9
x
2
9x
​2
​​
5 0
3 years ago
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