2 years ago

Help is needed please

Mathematics

1 answer:

Masja [62]2 years ago

6 0

The answer is 30a-9b+23c

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levacccp [35]

At least 30 ..................

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2 years ago

The question that follows this graph is:

azamat

Answer:

S'(5,-1), M'(1,-3)

Step-by-step explanation:

So, if the rotation is clockwise, the formula is (x,y)--->(-x,-y).

The original points are, (-1,3) and (-5,1).

Using the formula,

(-1,3) ----> (1,-3)

(-5,1) ----> (5,-1)

For the question in the image, the reflection over the x-axis is..

S'(-5,1) ---> (-5,-1)

M'(1,-3) ---> (-1,-3)

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3 years ago

Help me Please ...

wariber [46]

8. 268.632

there is one

4 0

3 years ago

A certain tennis player makes a successful first serve 6969% of the time. Suppose the tennis player serves 9090 times in a matc

Wewaii [24]

Answer:

a) 4.387

b) Yes, because np & npq are greater than 10.

c) = 0.017

Step-by-step explanation:

Give data:

p = 0.69

n = 90

a) a

E(X) = np = 62.1

$SD(X) = \sqrt{(np(1-p))}$

$=\sqrt{90\times 0.69(1- 0.69)}$

= 4.387

np = 62.1

q = 1 - p = 1 - 0.69 = 0.31

npq = 19.251

Yes, because np & npq are greater than 10.

$P(X \geq 72 ) = P(X > 71.5)$ [continuity correction]

$= P(Z> \frac{((71.5-62.1)}{ 4.387})$

= P(Z> 2.14 )

= 1 - P(Z<2.14)

= 1 - 0.983 (using table)

= 0.017

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3 years ago

10 From l he graph F shown below wheal happens to the values as the negative values get closer to zero l . .. 5 35 l I x g 1 in

Marianna [84]

If u add it to a grapghing calcauter

u will get as your points

(-1.2) (6.994)

3 0

3 years ago