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ololo11 [35]
3 years ago
14

Help me please my iready

Mathematics
2 answers:
Mama L [17]3 years ago
8 0

Answer:

Avery's mistake was adding the fractions together, she should've multiplied them together to get 3/8 square yards.

zalisa [80]3 years ago
5 0
It’s the 3rd one i helped my friend with this one
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A^2+2ab+b^2. solve for a=10 and b=50
qaws [65]
A² + 2ab + b² ; Solve when a=10 & b=50

Simply plug in 10 for a and 50 for b in our given equation :)

(10)² + 2(10)(50) + (50)²

Simplify.

100 + 20(50) + 2500

Simplify.

(100 + 2500) + 1000

Simplify.

2600 + 1000

Simplify.

3600

Hope I helped! :)

3 0
3 years ago
Which of the following sets of data will have the smallest Standard Deviation?
uranmaximum [27]

Answer: D

Step-by-step explanation:

Standard Deviation σ2 =

Σ(xi - μ)2/N

=(1 - 5.3)2 + ... + (9 - 5.3)2/10

=68.1/10

= 6.81

σ = √6.81

= 2.60959767014

B) σ2 =

Σ(xi - μ)2/N

=(3 - 61.7)2 + ... + (99 - 61.7)2/10

=58414.1/10

= 5841.41

σ = √5841.41

= 76.429117488036

C) (1 - 11.4)2 + ... + (1 - 11.4)2/10

=8758.4/10

= 875.84

σ = √875.84

= 29.59459410095

D) (79 - 79)2 + ... + (79 - 79)2/10

=0/10

= 0

σ = √0

= 0

I hope this helps, mark as Brainliest please.

6 0
3 years ago
The graph shows the rate at which paint is used to paint a wall. wat are the values to each statement below based on the graph.
zhuklara [117]

Answer:

Step-by-step explanation:

  • When 1 gallon is has been used  400 square feet of the wall will be paint
  • The unit rate is 400 square feet per gallon

3 0
3 years ago
Mithali buys a t.v at 12,000 and sells it at a profit of 20% how much money she gets? reduce the fraction of cp and sp to the lo
Dominik [7]

Answer:

14,400

Step-by-step explanation:

Hope this helpfull..but if it's not,im so sorry

7 0
3 years ago
Pls help 4 100 points in geometry i will giv brainliest
dmitriy555 [2]

Answer:

a = 35

c = 85

Step-by-step explanation:

85 + 60 + a = 180 as they are all supplementary angles (together they form an angle of 180°)

therefore a = 35.

a + ( 180 -(a+85)) + c =180 (as the angles of a triangle add up to 180°. our triangle is NMT, the angles are a, c and 180°-(a+85°) for a theorem about lines secant to parallel lines)

therefore c = 85

7 0
2 years ago
Read 2 more answers
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