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Ivenika [448]
3 years ago
11

I’m having problems with these type of problems

Mathematics
1 answer:
castortr0y [4]3 years ago
4 0

Answer: x=-5 or x=2

Step-by-step explanation:

x^2+3x-10=0

x^2+5x-2x-10=0

x(x+5)-2(x+5)=0

(x+5)(x-2)=0

x+5=0 or x-2=0

x=-5 or x=2

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Approximately 9 out of every 50 people who saw a movie this week say they watched it on Netflix. Suppose we want to find the pro
uysha [10]

Answer:

<u></u>

  • <u>1. As a fraction: 9/50</u>
  • <u>2. As a proportion: x/1 = 9/50</u>
  • <u>3. As a percentage: 18%</u>

<u></u>

Explanation:

<u>1. As a fraction:</u>

Depart from the definition of probability: probability is the number of favoragle outcomes divided by the total number of possible outcomes:

  • Probability = number of movie-goers who say they watched a movie on Netflix this week / number of movie-goers that saw a movie this week

  • Probability = 9 / 50

<u>2. As a proportion:</u>

A proportion is the equality of two ratios. In this case you must set the ratio of people who say they watched it on Netflx, x, per every people who saw a movie this week, 1, equal to the ration 9 /50.

Hence, the proportion that shows the probability is:

  • x / 1 = 9 / 50

Where x is the probability.

<u>3. As a percentage</u>

You just have to multiply the probability by 100:

  • (9/50) × 100 = 18%
6 0
3 years ago
Can someone please help me on these questions!!!
34kurt

Answer:

#1 is 28

Step-by-step explanation:

Set the perimeters equal, as 6x - 2 = 8x - 12, solve for x = 5, and plug in.

3 0
3 years ago
What transformation to the linear parent function, f(x) = x, gives the function g(x) = x + 8?
NeTakaya

Answer:

Shift 8 units up

Step-by-step explanation:

The given function is;

f(x)=x

and

g(x)=x+8

The function f(x) has its y-intercept at y=0.

The function g(x)=x+8 has its y-intercept at y=8

This implies that; the linear parent function f(x)=x is shifted up 8 units to obtain g(x)=x+8.

5 0
3 years ago
in a box were put ten balls , 4 white , 3 blue , 2 red and 1 black . Withdrawing only 4 , as there are combinations
Basile [38]
The most likely color to be grabbed is the white ones because there are more
5 0
3 years ago
Solve the inequality <br>1/2x - 4 &lt; 3 - 2/3 x​
34kurt

Answer:

X<6

Step-by-step explanation:

3x-24<18-4x

7x<42

5 0
3 years ago
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