All categories

3 years ago

Solve for x: −2x + 5 < 7 a. x > −1 b. x < −1 c. x > −6 d. x < −6

Mathematics

1 answer:

skad [1K]3 years ago

4 0

Since we divided by a negative 2 on both sides the sign switches and the answer is { a. x > -1 }

You might be interested in

Calculate x you must include the steps and your solution and the definitions and or conjuncture that you use

Lelu [443]

Answer:

Step-by-step explanation:

4 0

3 years ago

Q5: The probability that event A occurs is 5/7 and the probability that event B occurs is 2/3 . If A and B are independent event

bekas [8.4K]

Answer:

$P(A \cap B)$

And we can use the following formula:

$P(A \cap B)= P(A)* P(B)$

And replacing the info we got:

$P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476$

Step-by-step explanation:

We define two events for this case A and B. And we know the probability for each individual event given by the problem:

$p(A) = \frac{5}{7}$

$p(B) = \frac{2}{3}$

And we want to find the probability that A and B both occurs if A and B are independent events, who menas the following conditions:

$P(A|B) = P(A)$

$P(B|A) = P(B)$

And for this special case we want to find this probability:

$P(A \cap B)$

And we can use the following formula:

$P(A \cap B)= P(A)* P(B)$

And replacing the info we got:

$P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476$

7 0

3 years ago

Korey is planning to open a comic book store. In his first year of operation, Korey expects to average $1,000 of profit each mon

Phantasy [73]

Answer:

option A

Step-by-step explanation:

given,

Korey expects to average $1,000 of profit each month

first year profit from the comic book store = $1000 × 12

= $12,000

now for next four year profit will increase by 6%

Second year profit: $12,000 × 1.06

Third year profit: $12,000 × 1.06²

Fourth year profit: $12,000 × 1.06³

Fifth year profit: $12,000 × 1.06⁴

=$15,149.72

Profit of Korey expected after fifth year is equal to $15,149.72.

Hence the correct answer is option A

6 0

3 years ago

Read 2 more answers

The lines y equals=3x minus−1 and y equals=ax plus+2 are perpendicular if aequals=_______.

yan [13]

Since perpendicular lines have their slopes as negative reciprocals, the negative reciprocal of the given slope (3) is -1/3. Therefore the a value is -1/3.

3 0

3 years ago

In one year, the population of Douglas, the former copper mining town on the U.S.-

Gelneren [198K]

Answer:

WATCH THE VIDEO FROM THE CLASS RECORDING FROM FRIDAY, NOVEMBER 6 TO SEE HOW TO DO THIS PROBLEM!

Step-by-step explanation:

1. GO TO CLASS CONNECT RECORDINGS.

2. WATCH RECORDING FROM FRIDAY, NOVEMBER 6

3. DO YOUR OWN WORK!

4. ASK MR. O FOR HELP IF NEEDED...

5. REMEMBER, USING BRAINLY IS A VIOLATION OF THE ACADEMIC INTEGRITY POLICY.

4 0

3 years ago