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Gelneren [198K]
3 years ago
12

Solve each equation * Captionless Image a b c d

Mathematics
1 answer:
Evgen [1.6K]3 years ago
4 0

Answer:

b)

Step-by-step explanation:

n²+n-42=0

Using mid-term break

n²+7n-6n-42=0

n(n+7)-6(n+7)=0

(n-6)(n+7)=0

Either,

n-6=0 OR n+7=0

n=6     OR n= -7

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Person BMI Total Cholesterol
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3 years ago
Read 2 more answers
On a math test 12 students earned an a this number is exactly 25% of the total number of students in the class how many students
statuscvo [17]

Answer:

48 students.

Step-by-step explanation:

25% of total students = 12

suppose,

total students= x

so,

25% of x=12

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7 0
3 years ago
Help it’s in the picture
blondinia [14]
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5 0
3 years ago
which graph represents the solution set of the system of inequalities? (is my selected answer correct, if not please help!!)
algol [13]

Answer:

the graph on the right-top

Step-by-step explanation:

Transferring an "x" to the right side in x+y\ge-3, we get y\ge -x-3

The system of inequalities is

\left \{ {{y

We have y=2x+2 - ascending function with a=2, b=2

b=2 shows that ascending function intersects Y-axis is in y=2 - that situation is only on the right-top and left-down. So, we refuse left-top and right-down.

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y<2x+2 is an area below the ascending function and we see that on the left-

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On the left-down we have an area above both functions, so we refuse this picture

Right-top is correct


7 0
3 years ago
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