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max2010maxim [7]
3 years ago
8

X^2-2x-15=0 x^2-7x=18 4n^2=4n+36=0

Mathematics
1 answer:
Blizzard [7]3 years ago
8 0

Answer: oh  this is hard

Step-by-step explanation: its b

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3 years ago
Five over seven plus blank over six equals fifty one over forty two
NISA [10]

Answer:

The blank is 3

Step-by-step explanation:

1 - Give the blank a variable

x = our blank

2 - Write it out

\frac{5}{7} + \frac{x}{6} = \frac{51}{42}

3 - Get the denominators equal

\frac{5}{7}(\frac{6}{6}) +\frac{x}{6}(\frac{7}{7}) = \frac{51}{42} \\\frac{30}{42}+\frac{7x}{42} = \frac{51}{42}

4 - Simplify

\frac{30+7x}{42} = \frac{51}{42} \\ \frac{30+7x}{42} = \frac{51}{42}

5 - Solve for the numerators

30+7x = 51

-30         -30

      7x = 21

        x = 3

6 0
3 years ago
Find the value of x. help please
vampirchik [111]

Answer:

x=10

Step-by-step explanation:

It's a 90 degree angle.

90-60=30

30=the remaining angle, 3x

x=30/3, or 10

Hope I helped!

5 0
3 years ago
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Beth is putting liquid fertilizer on the plants in 4 flowerpots. her measuring spoon holds 1/8 teaspoon the directions say to pu
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20 times 1/8+1/8+1/8+1/8+1/8=5/8 times 4 because of the four pots = 20
5 0
3 years ago
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PLEASE HELPP!! I will give a thanks!!
Sedbober [7]

Answer:

x=30

Step-by-step explanation:

supplementary= 180

so 180-150=30

x=30

hope this helps

6 0
3 years ago
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