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2 years ago

CAN SOMEONE HELP PLEASE

Mathematics

1 answer:

qaws [65]2 years ago

4 0

Answer:

i think 12 will be the answer have a good day

Step-by-step explanation:

be happy

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I need some help with binomial theorems. can anyone help solve this?

Svetlanka [38]

Use Pascal's Triangle

1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
1 8 28 56 70 56 28 8 1
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So, the seventh term of (3x + 2y)^9 will be 84xy

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4 years ago

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Is a cube a prism please help

Igoryamba

Yes a cube is a special type of a rectangular prism

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4 years ago

What is 0 + y, when y = -12

yaroslaw [1]

Answer:

-12

Step-by-step explanation:

Substituting, we get 0 - 12, Which is simply -12

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3 years ago

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Axis of symmetry f(x) = −4(x − 8)^ 2 + 3

Delvig [45]

Answer:

$x=8$

Step-by-step explanation:

For an equation in the form of $y=a(x-h)^2+k$ , the axis of symmetry is where $x=h$ . In this case, the axis of symmetry is the line $x=8$

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2 years ago

A simple random sample of 100 8th graders at a large suburban middle school indicated that 81% of them are involved with some ty

Sophie [7]

Answer:

The interval is $0.7187 < p < 2.421$

Step-by-step explanation:

From the question we are told that

The sample size is $n = 100$

The population proportion is $p = 0.81$

The confidence level is C = 98%

The level of significance is mathematically evaluated as

$\alpha = 100 -98$

$\alpha = 2%$ %

$\alpha = 0.02$

Here this level of significance represented the left and the right tail

The degree of freedom is evaluated as

$df = n-1$

substituting value

$df = 100 - 1$

$df = 99$

Since we require the critical value of one tail in order to evaluate the 98% confidence interval that estimates the proportion of them that are involved in an after school activity. we will divide the level of significance by 2

The critical value of $\frac{\alpha}{2}$ and the evaluated degree of freedom is