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3 years ago

Complete the equation of the line whose y- intercept is (0,5) and slope is -9

Mathematics

1 answer:

KonstantinChe [14]3 years ago

8 0

Answer:

y= -9x+5

Step-by-step explanation:

i hope this helps :)

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Jacob buys 3 hot dogs and a $1 soda.he spent $5.50 in all.what is the cost of one hot dog?

Margaret [11]

It would be $1.50 because if the soda's $1 then subtract it and divide that by the quantity.

6 0

3 years ago

Read 2 more answers

Devin is on his school's swim team. During his 2-week winter break, he swims 30 laps each week to stay in shape. If each lap is

tamaranim1 [39]

I think... 1500

Step-by-step explanation:

multiply 30 and 25 then times 750 as your answer by 2 to get 1500

7 0

3 years ago

use for questions 4-6: A lettter is randomly chosen from the word CANDLESTICK. Find each probability.

alexandr402 [8]

There are 3 vowels out of 11 letters in the word CANDLESTICK.

Probability (vowel) = 3/11

P( N or S) = 2/11 ( as there is 1 S and 1 N in the word)

P(not C) = 1 - P(picking a C) = 1 - 2/11 = 9/11 (note there are 2 C's in the word)

4 0

3 years ago

A rectangle Has an area of 105 ft.² if the sum of the length and width is 26 feet find the dimensions include units

zhenek [66]

LW=105
L+W=26
L=26-W
(26-W)W=105
26W-W^2=105
0=W^2-26W+105
-105=W^2-26W
-105+169=W^2-26W+169
64= (W-13)^2
8= -(W-13) and (W-13)
8= -W+13
5=W

8= W-13
21=W

105= 5*21

Answer: 5 feet x 21 feet

5 0

3 years ago

A true-false quiz with 10 questions was given to a statistics class. Following is the probability distribution for the score of

mart [117]

Solution

Question 1:

- The formula for finding the mean score is that of the expected value formula. That is,

$\begin{gathered} E(x)=\sum_{i=1}p_i\times x_i \\ where, \\ p=\text{ The probability of getting a score of }x\text{ } \\ x=\text{ The actual score} \end{gathered}$

- Thus, the mean can be gotten as follows:

$\begin{gathered} \sum px=5\left(0.06\right)+6\left(0.16\right)+7\left(0.34\right)+8\left(0.23\right)+9\left(0.15\right)+10(0.06) \\ =7.43 \end{gathered}$

The mean score is 7.43

Question 2:

- The more students write the exam, the more the mean score will approach the theoretical mean score.

- The theoretical mean score is calculated above to be 7.43

- Thus, as more students write the quiz, their scores approach 7.43

7 0

1 year ago