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xenn [34]
3 years ago
8

Adi used algebra tiles to represent the product (negative 2 x minus 1)(2 x minus 1).

Mathematics
2 answers:
aleksley [76]3 years ago
6 0

Answer:

its B

Step-by-step explanation:

Paha777 [63]3 years ago
5 0

Answer:

She did not represent the two original factors correctly on the headers.

Step-by-step explanation:

Adi algebra tiles representation is shown in the figure attached.

She made a mistake when she represented -2x-1 with two negative tiles in the top header , so, the representation in the header is not correct.

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Help plz
denis-greek [22]

Answer:

Step-by-step explanation:

length = 5 1/4 = 21/4 inches

Width = 2 1/2 = 5/2 inches

Height = 2 inches

Volume of rectangular prism = length * width * height

                     = \frac{21}{4}*\frac{5}{2}*2\\\\= \frac{21}{4}*5\\\\=\frac{105}{4}

                     = 26.25 cubic inches

8 0
3 years ago
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3/8 divided by 10 1/2
kenny6666 [7]
I think that it is 0.035 or 3/100
5 0
3 years ago
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Kelly paid $45.36 for a sweater that was on sale for 25% off the original price. She paid 8% sales tax on the sale price.
Shalnov [3]
Take 45.36 *.08 to get the price of the sweater 45.36 *.08 =3.6288 so take 45.36-3.63= 41.73 and take 41.73 *.25 = 10.4325 take 41.73+10.43=52.16 is the original price of the sweater
5 0
2 years ago
In a group of equal number of men and women 10% men and 45% women are suffering from Malaria.What is probability a peraon select
Kaylis [27]

Answer:

The probability a person selected random is not suffering from Malaria  is 0.725.

Step-by-step explanation:

Denote the events as follows:

X = a person is suffering from Malaria

M = a man

W = a woman

The information provided is:

P (M) = P (W) = 0.50

P (X|M) = 0.10

P (X|W) = 0.45

Compute the probability a person selected random is suffering from Malaria as follows:

P(X)=P(X|M)P(M)+P(X|W)P(W)

         =(0.10\times 0.50)+(0.45\times 0.50)\\\\=0.05+0.225\\\\=0.275

Then the probability a person selected random is not suffering from Malaria  is:

P (X') = 1 - P (X)

         = 1 - 0.275

         = 0.725

4 0
3 years ago
Simplify the expression. Write your answer using only positive exponents. Evaluate any numerical powers.
gtnhenbr [62]

Answer:

  • 9x⁵

Step-by-step explanation:

<u>Use properties of exponents:</u>

  • <u />a^{b} a^{c} = a^{b+c}, (a^{b} ^)^{c} = a^{bc}, 1/a^{-b}  = a^{b}

<u>Simplify the given expression:</u>

  • 3⁴⋅x⋅(3/x²)⁻² =
  • 3⁴·x·(3x⁻²)⁻² =
  • 3⁴·x·(3⁻²)(x⁻²ˣ⁻²) =
  • 3⁴⁻²·x¹⁺4 =
  • 3²·x⁵ =
  • 9x⁵

5 0
3 years ago
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