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inna [77]
3 years ago
8

Can someone please help ​

Mathematics
1 answer:
motikmotik3 years ago
8 0
Here how to solve it..............

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Write the equation of the line that passes through the points (-1, 10) and (5, 2)
sdas [7]

Answer:

y=-\frac{4}{3}x +\frac{26}{3}

Step-by-step explanation:

1) if the point A has coordinates (-1;10) and the point B - (5;2), then it is possible to write common view of the required equation of the line:

\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A};

2) if to substitute the coordinates of A&B into the common equation, then:

\frac{x+1}{5+1} =\frac{y-10}{2-10}; \ => \frac{x+1}{6}=\frac{y-10}{-8};

3) finally, in slope-intersection form:

3y= -4x+26; ⇔ y= -4/3 x +26/3.

P.S. the suggested way of the solution is not the only one.

4 0
2 years ago
Simplify the following expression. (4x2 + 8x + 15) + (x2 − x − 27) − (x + 5)(x − 7)
mario62 [17]

Answer:

X^2+ 2x+35

Step-by-step explanation:

Use pemdas. Multiply the parentheses. Multiply. Collect like terms. Remove the parentheses.

3 0
3 years ago
Eighteen subtracted from a number is<br> 35."
ivolga24 [154]

Answer:

53

Step-by-step explanation:

35 plus 18

6 0
3 years ago
Read 2 more answers
Rational equation for x, 3x/x+1 + 4/x-2=3
zimovet [89]

Answer:

x = - 10

Step-by-step explanation:

Express the fractions on the left side as a single fraction.

Multiply the numerator/denominator of the first fraction by (x - 2)

Multiply the numerator/denominator of the second fraction by (x + 1)

\frac{3x(x-2)}{(x+1)(x-2)} + \frac{4(x+1)}{(x+1)(x-2)} = 3

Distribute the numerators and simplify

\frac{3x^2-6x+4x+4}{(x+1)(x-2)} = 3 ( cross- multiply )

3x² - 2x + 4 = 3(x+ 1)(x - 2) ← distribute

3x² - 2x + 4 = 3(x² - x - 2)

3x² - 2x + 4 = 3x² - 3x - 6 ( subtract 3x² - 3x  from both sides )

x + 4 = - 6 ( subtract 4 from both sides )

x = - 10

5 0
3 years ago
Stephanie can jump rope 12o turns in 3 minutes. How many turns does she make in 1 minute
ANEK [815]
She would be able to make 40 in one minute.

To find this, you just divide 120/3 to find how many in one minute.
8 0
3 years ago
Read 2 more answers
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