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Misha Larkins [42]
3 years ago
7

Part A: Determine if the expression is one of our special products. If so, identify it by its general form:

Mathematics
1 answer:
kondaur [170]3 years ago
6 0

Answer:

1.

Part A: Yes, it is (a - b)².

Part B: a² - 2ab + b² => (x - 6)² = x² - 12x + 36.

Part C: x² - 12x + 36.

2.

Part A: Not a special product.

Part B: Binomial distribution => (x + 8)(x + 1) = x² + 9x + 8.

Part C: x² + 9x + 8.

3.

Part A: Yes, it is (a + b)²

Part B: a² + 2ab + b² => (3x + 2)² = 9x² + 12x + 4.

Part C: 9x² + 12x + 4.

4.

Part A: Yes, it is (a + b)(a - b), a difference of squares.

Part B: a² - b² => 4x² - 49

Part C: 4x² - 49

5.

Part A: Not a special product.

Part B: Binomial distribution => (x - 5)(2x - 5) = 2x² - 15x + 25.

Part C: 2x² - 15x + 25

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What is the approximate circumference of a circle with a radius of 8.5 meters? Use π ≈ 3.14.
vovangra [49]
Circumference = 2 pi r
Circumference = 2 x 3.15 x 8.5 m
Circumference = 53.4 metres
4 0
3 years ago
Can someone help me with this question? Will give brainliest.
just olya [345]

Answer:

5.2561

step by step explanation:

using BODMAS, multiplication comes before addition.

Therefore,

\sqrt{1.13 + (2.84 \times 9.33)}

\sqrt{1.13 + 26.4971}

\sqrt{27.6272}

Therefore the answer is

5.2561

7 0
2 years ago
What number is exactly half way between 1/9 and 1/3
nata0808 [166]

Answer:

1/5

Step-by-step explanation:

1/9=0.11

1/3=0.33

1/5=0.20

I don't really know the answer but I tried.

6 0
3 years ago
A found raising meeting raised sh 8100 for buying desk for three schools, A,B and C, the money was shared to the schools in the
Gelneren [198K]

Answer:

  • A: 1/3, 2700
  • B: 2/9, 1800
  • C: 4/9, 3600

Step-by-step explanation:

The total number of ratio units is 3+2+4 = 9, so the fractions each school got were ...

  A : B : C = 3/9 : 2/9 : 4/9

These fractions multiply the total amount raised:

  A got 1/3 = 2700, B got 2/9 = 1800, C got 4/9 = 3600

8 0
3 years ago
A health food store sells a mixture of raisins and roasted nuts.
murzikaleks [220]

Answer:

Raisins = 25 kg

Nuts = 15 kg

Step-by-step explanation:

Given that:

Kilograms of snack to be made = 40 kg

Price per kg would be $4.75kg.

Price of 40 kg would be = 4.75 * 40 = $190

Let,

x be the kilograms of raisins

y be the kilograms of nuts

According to given statement;

x+y=40        Eqn 1

4.00x+6.00y=190      Eqn 2

Multiplying Eqn 1 by 4

4(x+y=40)

4x+4y=160    Eqn 3

Subtracting Eqn 3 from Eqn 2

(4x+6y)-(4x+4y)=190-160

4x+6y-4x-4y=30

2y=30

Dividing both sides by 2

\frac{2y}{2}=\frac{30}{2}\\y=15

Putting y=15 in Eqn 1

x+15=40

x=40-15

x=25

Hence,

Raisins = 25 kg

Nuts = 15 kg

8 0
2 years ago
Read 2 more answers
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