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2 years ago

Select the correct answer.

Mathematics

1 answer:

Vikki [24]2 years ago

3 0

Answer:

the answer is A. 3225

Step-by-step explanation:

S₃₀ = 30/2 [ 2 x 6 + (30 - 1) x 7 ]

15 [ 12 + 29 x 7 ]

15 [ 12 + 203 ]

15 x 215

=3225

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What is the slope of the line that passes through the points (3, -2) and (9, -2)?

ICE Princess25 [194]

m=(-2+2)/(9-6)=0/3=0

m=0

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3 years ago

If m = 5, what is the value of the expression 2m + 17?

KIM [24]

Answer:

2(5)+17 = 27

Step-by-step explanation:

Hope this helps answer your question(s). Please mark brainliest and enjoy the rest of your day!

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2 years ago

Read 2 more answers

I need help with this question I'm stuck please help !

sertanlavr [38]

Evaluate<span> the series by expanding the summation, then adding all of the values. 154 would be the answer.</span>

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3 years ago

You have 200 dice in a bag. One of the dice has a six on all sides so it will land on a six every time you roll it. The other 19

LiRa [457]

Answer:

Step-by-step explanation:

There are 200 dice out of which 199 are fair

Prob for 6 in one special die = 1 and

Prob for 6 in other die = 1/6

A1- drawing special die and A2 = drawing any other die

A1 and A2 are mutually exclusive and exhaustive

P(A1) = 1/200 and P(A2) = 199/200

B = getting 6

i) Required probability

= P(A1/B) = $\frac{P(A1B)}{P(A1B)+P(A2B)} \\$

P(A1B) = $\frac{1}{200} *1 = \frac{1}{200}$

P(A2B) = $\frac{199}{200}*\frac{1}{6}=\frac{199}{1200}$

P(B) = $\frac{205}{1200} =\frac{41}{240}$

P(A1/B) = $\frac{1/200}{41/240} =\frac{7}{205}$

P(A2/B) = $\frac{199/1200}{41/240} =\frac{199}{205}$

4 0

3 years ago

an object is launched at 4 ft./s from 88 foot tall platform the objects height H in feet after T seconds is given by the equatio

posledela

Answer:

1.5seconds

Step-by-step explanation:

When the ball hits the ground, the height is equal to zero. So find t when H=0:

H=16t²+8t+80

0=16t²+8t+80

0=2t²+t+10

0=(2t-3)(t+2)

So (2t-3)=0, or (t+2)=0

So t=1.5 or t=-2. Time can't be negative though, so we take our answer as 1.5seconds

8 0

3 years ago