One dice has 6 sides and two dice will give us 12 sides with 36 possibilities
it will be 9/36=.25

so it will have 25% chance of the two dice to have a sum of 9

5 0

3 years ago

Given:

bekas [8.4K]

Answer:

x = -4/9

Step-by-step explanation:

X + B = C

x + (-8/4) = (22/-9)

x = (8/4) - (22/9)

x = 2 - 22/9 = 18/9 - 22/9 = -4/9

3 0

3 years ago

Read 2 more answers

What is the surface area in square inches of a cube with a side 7<br> inches long?<br> 10

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

7x4

5 0

2 years ago

Read 2 more answers

How many different 4-question geometry quizzes can a teacher make if there are 7 different problems to test on?.

stich3 [128]

Answer:

35 quizzes

Step-by-step explanation:

We need to determine how many ways we can choose 4 questions out of 7 to make the quizzes.

We do this by using the formula $\displaystyle nCr=\frac{n!}{r!(n-r)!}$ which describes the number of ways we can choose $r$ objects given $n$ possible choices. So, if $n=7$ and $r=4$ , then:

$_4C_7=\frac{7!}{4!(7-4)!}\\\\_4C_7=\frac{7*6*5*4!}{4!*3!}\\\\_4C_7=\frac{210}{6}\\\\_4C_7=35$

Hence, the teacher can make 35 different geometry quizzes.

3 0

2 years ago