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Misha Larkins [42]
3 years ago
9

All outcomes being equally likely, what is the probability a classmate receives a gift bag with a bouncy ball?

Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0
I think the answer is b and c but I’m not very sure
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Garrrrryy <br><br> no need to show work <br> two questions <br> thankks
irakobra [83]
1. x^2-x-72=0
\Delta=(-1)^2-4*1*(-72)=1+288=289
\sqrt{\Delta}=17
x_1=\frac{1-17}{2}=-8
x_2=\frac{1+17}{2}=9

2. f(x)=x^2+12x+20
\Delta=144-80=64
\sqrt{\Delta}=8
x_1=\frac{-12-8}{2}=-10
x_2=\frac{-12+8}{2}=-2
8 0
4 years ago
How many 7-digit phone numbers can be formed if the first digit cannot be 0 or 1 and if no digit can be repeatd?
vichka [17]
8x10x9x8x7x6x5= 1209600
5 0
4 years ago
A ship has a length of 120 m.
zaharov [31]

The sentence describing the scale of the model is 1 m represents 40m.

Given,

The length of the ship = 120 m

A scale model of the ship is made.

The length of the model = 3 m

We have to find that, 1m in model represents how much meter of the original.

Scale model;

A physical model that is geometrically similar to an object is called a scale model (known as the prototype). Scale models may be larger than small prototypes like anatomical structures or subatomic particles, but they are often smaller than huge prototypes like cars, buildings, or people.

Here,

Original ; scale model

120 ; 3

That is,

120/3 = 40

Therefore,

1 meter in scale model represents 40 m of the original ship.

Learn more about scale model here;

brainly.com/question/22233364

#SPJ1

6 0
1 year ago
Solve each equation. <br> 4.) 0= -5n-2n5<br> 5.) 6 r − 1 + 6 r = 11 <br> 6.) r + 11 + 8 r = 29
neonofarm [45]

Answer:

5) 6r-1+6r=11

Step-by-step explanation:

if you add everything up you get that

5 0
3 years ago
How do you solve 5x-2=8?
klemol [59]

Answer:

x=2

Step-by-step explanation:

5×2=10-2=8

You subtract add two to both sides, giving you 5x=10

Divide the 10 by 5 and you get 2.

6 0
3 years ago
Read 2 more answers
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