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IceJOKER [234]
3 years ago
12

Help me with this:((((​

Mathematics
1 answer:
Hoochie [10]3 years ago
4 0
Activity 3
1) 2m^2(4m^2 + 3m + 2)
2) (x + 4)^2 (x - 4)
3) (x + 9)(x - 7)
4) 5y(17y - 4z)
5) (2x - y)(6x + 5y)

Activity 4
1) 80 units because when you sub h = 9, you get 400 as the answer and because it’s a square, you square root 400 which is 20 units per side.
2) x = 7cm because when you multiply (x + 5)(x - 3), you get x^2 + 2x - 15 = 48 and when you solve it you get x is equal to 7, -9, because the length of the rectangle is positive x is equal to 7.
3) the binomial would be (9x + 1)^2.
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A hotel claims that 8585​% of its customers are very satisfied with its service. complete parts a through d below based on a ran
jek_recluse [69]
We can solve this problem using the binomial distribution. A binomial distribution<span> can be thought of as a success or failure outcome in an experiment or survey that is repeated multiple times. 
</span>Probability function of binomial distribution has the following form:
P= \frac{n!}{k!(n-k)!} p^k(1-p)^{n-k}
p represents the probability of each choice we want. k is the number of choices we want and n is the total number of choices.
In our case p=0.85, k=5 and n=6. 
We can now calculate the answer:
P= \frac{6!}{5!(6-5)!} 0.85^5(1-0.85)^{6-5}=0.39
The probability is 39%.
.
7 0
3 years ago
FONTS
Wewaii [24]

Answer:

x=5

Step-by-step explanation:

9x^2 - 2x + 25 = 8x^2 + 8x

9x^2-8x^2-2x-8x+25=0

x^2-6x+25=0 factorize

(x-5)(x-5)=0

x-5=0 then x=5

8 0
3 years ago
Answer -3(9+3)*2/2*2-(-2)
daser333 [38]

Answer:

-70

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The base of a circular fence with radius 10 m is given by x = 10cos(t), y = 10sin(t). the height of the fence at position (x, y)
Karo-lina-s [1.5K]
The average height of the fence is 2 m; its length is 20π m. So, its 2-sided area is
  A = 2*(2 m)*(20π m) = 80π m² ≈ 251 m²

At 1 L/(100 m²), it will take 2.51 L of paint to paint both sides.
6 0
3 years ago
SWEET T HAS 2 ORANGE PICKS FOR EVERY 5 GREEN. IF THERE ARE 21 PICKS IN ALL, HOW MANY PICKS ARE ORANGE?
IrinaVladis [17]

Answer:

For 21 picks, there are 6 orange

Step-by-step explanation:

orange: green   : total

2               5            2+5

2             5              7


If there are 21 picks, we need to divide by 7  to see how many times we need to multiply

21/7 = 3

Multiply everything by 3

orange: green   : total

2*3          5*3          7*3

6                 15           21

For 21 picks, there are 6 orange

6 0
3 years ago
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