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DIA [1.3K]
3 years ago
8

Pls Help me answer these questions. Brainliest for the correct person who answers each question correctly.

Mathematics
2 answers:
ahrayia [7]3 years ago
6 0
Q1.) A. 12
Q2.) A. \frac{7}{10}
Q3.) C. A probability near 1 indicates a likely event
Q4.) D. 5
Fofino [41]3 years ago
6 0
1. Hiro has 1/9 chance ( that means 1 out of 9 times) divide 108 by 9 to get total number of wins: 108 /9 = 12 wins. Answer is A

2. multiples of 3 are 3, 6 ,9  , so 3 numbers are multiple of 3, numbers that are not multiple of 3 = 10-3 = 7, so there would be a 7/10 chance.
Answer is A.

3. for probability, 1 would be equal to 100% so a probability of 1 would be a likely event happening. The answer would be C

4. find the average and divide, the answer would be D. 5
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Someone please help me out i don´t understand this question <br> ill give you 21 points
suter [353]

Answer:

0.67

Step-by-step explanation:

Formula: k = y/x

k = 2/3

k = 0.66666666666

k = 4/6

k= 0.66666666666

k = 6/9

k = 0.66666666666

k = 8/12

Round 0.67

Hence, answer = 0.67

[RevyBreeze]

8 0
2 years ago
Read 2 more answers
Please give an explanation and the answer to this question for 15 points thanks.
Alchen [17]

Answer:

y=29

Step-by-step explanation:

Since the angles are across a vertex from one another, they are congruent and equal. You can also see this by reflecting  or folding it in half through the vertex. They will be the same. This means we can write the following equation and solve using inverse operations:

4y-8=79+y

4y-y-8=79+y-y

3y-8=79

3y-8+8=79+8

3y=87

y=29

4 0
3 years ago
Jina used a tots of 2 1/6 gallons of gas while driving her car. Each hour she was driving, she used 7/8 gallons of gas. What was
marysya [2.9K]
2 1/6 ÷ 7/8= 2 10/21 h
hope this helps!
8 0
3 years ago
Please help me with this
ElenaW [278]

Answer: a=4, b=-8, c=-3

Step-by-step explanation: This equation isn't in standard form. To get it there, subtract -3 from both sides. This gets you an equation of 4x^2-8x-3.

The standard form is ax^2+bx+c.

A is the number before x^2 (4). B is the number before x, and since it's subtracted it's negative (-8). C is the last number, and since it's subtracted it's negative (-3).

7 0
3 years ago
The function ƒ(x) = (x − 1)^2 + 5 is not one-to-one. Find a portion of the domain where the function is one-to-one and find an i
melisa1 [442]

Answer:

f(x)=(x-1)^2+5 with domain x>1 and range y>5 has inverse g(x)=sqrt(x-5)+1 with domain x>5 and range y>1.

Step-by-step explanation:

The function is a parabola when graphed. It is in vertex form f(x)=a(x-h)^2+k where (h,k) is vertex and a tells us if it's reflected or not or if it's stretched. The thing we need to notice is the vertex because if we cut the graph with a vertical line here the curve will be one to one. So the vertex is (1,5). Let's restrict the domain so x >1.

* if x>1, then x-1>0.

* Also since the parabola opens up, then y>5.

So let's solve y=(x-1)^2+5 for x.

Subtract 5 on both sides:

y-5=(x-1)^2

Take square root of both sides:

Plus/minus sqrt(y-5)=x-1

We want x-1>0:

Sqrt(y-5)=x-1

Add 1 on both sides:

Sqrt(y-5)+1=x

Swap x and y:

Sqrt(x-5)+1=y

x>5

y>1

3 0
3 years ago
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