All categories

3 years ago

Can someone help with this with an explanation?

Mathematics

1 answer:

Stella [2.4K]3 years ago

3 0

I hope this helps you

x^2+x-6 = (x+3)(x-2)

x => +3

x => -2

x^2-2x-15= (x-5)(x+3)

x => -5

x => +3

(x+3)(x-2)/(x-5)(x+3)

x-2/x-5

You might be interested in

Hi pls help answer this!

Morgarella [4.7K]

Answer:

363-138=-5x

Step-by-step explanation:

Let c = cost

We know that the total cost is $363:

363-??????

We also know that he spent $138 on parts:

363-138?????

And we are solving for the cost of labor per hour:

363-138=5x

We can use this equation to find the total cost of labor per hour.

Hence, your equation will be 363-138=5x

7 0

2 years ago

Hector is dividing students into groups for an HR wants to divide the boys and girls so that each group has the same number of t

Roman55 [17]

Answer:

7 groups, 3 boys and 8 girls

Step-by-step explanation:

Let total number of groups be $x$

and total hikers in one group be $y$

if number of girls and boys in every group is same, then

$\frac{21}{x} + \frac{56}{x} = y$

$\frac{21 + 56}{x} = y\\x*y = 77$ ....(1)

from (1) $x$ will either be 11 or 7

for $x = 11$ the values won't be real.

For $x = 7\\y = \frac{77}{7} \\y = 11$

so there will be 7 groups with 11 hikers in each groups and every group will have $\frac{21}{7} = 3$ boys and $\frac{56}{7} = 8$ girls

6 0

3 years ago

Please help me please

Levart [38]

Answer:

Alternate Interior Angles Theory

Step-by-step explanation:

Any number inside the angle is known as an Alternate Interior Angle.

7 0

3 years ago

Which is the equation of the given line (4,3) (4,-2)

sineoko [7]

The equation of the line is x=4

3 0

3 years ago

Read 2 more answers

Evaluate. 1+5⋅32 A. 8 b. 9 c. 16 d.18

Anna007 [38]

Answer:

the answer should be 161

6 0

3 years ago