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sp2606 [1]
3 years ago
8

Expand (3a – 5b)(2a +36)

Mathematics
1 answer:
olga_2 [115]3 years ago
4 0

Answer:

6a^2+108a-10ab-180b

Step-by-step explanation:

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What is 4910000 in scientific notation
n200080 [17]
4.9*10 x^{6}
i hope i helped!
5 0
3 years ago
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Each of these numbers represents the weight of a student in kilograms. What is the median of this data set?
aleksandrvk [35]

Answer:

47

Step-by-step explanation:

www.alcula.com/calculators/statistics/median/

4 0
3 years ago
Find the value of x in the equation below. 3x = 18
Oxana [17]

Answer:

x=6

Step-by-step explanation:

you need to get x alone so you divide by 3 on both sides

hope this helps!!! :)

example:

3x/3= 18/3

x=6

4 0
2 years ago
Read 2 more answers
Can someone help me please?!?
Damm [24]

Answer:

k=10

Step-by-step explanation:

g(x)=2x^2+ kx+18

when x=-2

g(-2)=2 (-2)^2 -2k +18

Since when x is -2, y =6

6=2 (-2)^2 -2k +18

6=18+8-2k

2k=26-6

2k=20

k=10

7 0
2 years ago
ANYONE??
RideAnS [48]
Volume of a quadrangular pyramid=(1/3)bh
b=base
h=height

b=area of the base=area of a square=8.4 ft * 8.4 ft=70.56 ft²

Pythagoras theorem:
hypotenuse²=leg₁² + leg₂²

data:
hypotenuse=9.6 ft
leg₁=height=h
leg₂=8.4 ft /2=4.2 ft

(9.6 ft)²= h² + (4.2 ft)²
92.16 ft²=h²+17.64 ft²
h²=92.16 ft²-17.64 ft²
h²=74.52 ft²
h=√(74.52 ft²)=8.63 ft.

Volume of this quadrangular pyramid=(1/3)(70.56 ft²)(8.63 ft)=202.9 ft³≈202.3 ft³

Answer: ≈202.3 ft³
5 0
3 years ago
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