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d1i1m1o1n [39]
2 years ago
10

Answer for 11 points and brainliest

Mathematics
1 answer:
natulia [17]2 years ago
5 0

Answer:

Constant, $19/sweater

Step-by-step explanation:

You can check each of data by dividing cost/number.

38÷2=19

76÷4=19

133÷7=19

171÷9=19

Doing this will tell you the price of 1 sweater, which is $19.

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I need help or I’m going to fail math
gavmur [86]

Answer:

1. A

2. B

3. D

Step-by-step explanation:

Use PEMDAS to solve all

1.

8^2 - 6*2

8*8 - 6*2

64 - 12 = 52

2.

4^2 * 3 + 4 * 2

4 * 4 * 3 + 4 * 2

16 * 3 + 8

48 + 8 = 56

3.

9^2 - 2(5+3)

9 * 9 - 2(8)

81 - 16 =65

4 0
2 years ago
Find the circumference.<br> Use 3.14 for n.<br> r = 6 ft<br> C = [?] ft<br> C=Td
Y_Kistochka [10]

In the circumference formula given d is the diameter which is 2 times r ( r is the radius)

R is given as 6 feet, diameter = 2 x 6 = 12 feet.

Circumference = 12 feet x 3.14 = 37.68 feet

5 0
3 years ago
HELP PLSSS I DONT REMEMBER!!
Tatiana [17]

Answer:

8x-31 = 2x+92

Step-by-step explanation:

The angles are corresponding angles and corresponding angles are equal

8x-31 = 2x+92

8 0
3 years ago
For Valentine's Day, Kelsey got a box of 24 chocolates. After one week, she'd eaten 5/8 of them. How many chocolates had Kelsey
Readme [11.4K]

Answer:

She had eaten 15 chocolates.

Step-by-step explanation:

\frac{5}{8} * 24 = \frac{120}{8} = 15

5 0
3 years ago
Marsha wants to determine the vertex of the quadratic function f(x) = x2 – x + 2. What is the function’s vertex?
BaLLatris [955]

Answer:

Vertex = (\frac{1}{2},\frac{7}{4})

Step-by-step explanation:

Given

f(x) = x^2 - x +2

Required

The vertex

We have:

f(x) = x^2 - x +2

First, we express the equation as:

f(x) = a(x - h)^2  +k

Where

Vertex = (h,k)

So, we have:

f(x) = x^2 - x +2

--------------------------------------------

Take the coefficient of x: -1

Divide by 2: (-1/2)

Square: (-1/2)^2

Add and subtract this to the equation

--------------------------------------------

f(x) = x^2 - x +2

f(x) = x^2 - x + (-\frac{1}{2})^2+2  -(-\frac{1}{2})^2

f(x) = x^2 - x + \frac{1}{4}+2  -\frac{1}{4}

Expand

f(x) = x^2 - \frac{1}{2}x- \frac{1}{2}x + \frac{1}{4}+2  -\frac{1}{4}

Factorize

f(x) = x(x - \frac{1}{2})- \frac{1}{2}(x - \frac{1}{2})+2  -\frac{1}{4}

Factor out x - 1/2

f(x) = (x - \frac{1}{2})(x - \frac{1}{2})+2  -\frac{1}{4}

f(x) = (x - \frac{1}{2})^2+2  -\frac{1}{4}

f(x) = (x - \frac{1}{2})^2+ \frac{8 -1 }{4}

f(x) = (x - \frac{1}{2})^2+ \frac{7}{4}

Compare to: f(x) = a(x - h)^2  +k

h = \frac{1}{2}

k = \frac{7}{4}

Hence:

Vertex = (\frac{1}{2},\frac{7}{4})

8 0
3 years ago
Read 2 more answers
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