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kompoz [17]
2 years ago
8

11 minutes left please help

Mathematics
2 answers:
MatroZZZ [7]2 years ago
6 0

Answer:

kdflhjgrthwrthwrth

Step-by-step explanation:

Zanzabum2 years ago
5 0

Answer:

C -16x + 74/5

Step-by-step explanation:

2(x + 7) - 18x + (4/5)

Expand the brackets.

2x + 14 - 18x + (4/5)

Combine like terms.

(2x - 18x) + (14 + (4/5))

-16x + 14 4/5

Convert 14 4/5 to an improper fraction

14 4/5 = ((14 * 5) + 4) / 5 = 74 / 5

Answer = -16x + 74/5

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21.   D. is the answer.  Angle Q is 75 degrees.  X=30.  The triangle is an isosceles angle so therefore there are 2 angles are congruent to each other, Angle R and Angle Q.   All three of the angles should add to 180 degrees.
5 0
3 years ago
The slope of a line is -4 and it’s y-intercept is (0,4) what is the equation of the line that is perpendicular to the first line
Rasek [7]

Original line equation: y=-4x+4

Perpendicular lines have opposite reciprocals, so the slope of the perpendicular line would be 1/4x.

Perpendicular line equation: y=1/4x+b

Plug in the coordinates that the line passes through to solve for b. Plug -8 in for x and 2 in for y.

2=1/4(-8)+b

Multiply.

2=-2+b

Add 2 to both sides.

4=b

Equation of the perpendicular line: y=1/4x+4

Hope this helps! :)

4 0
3 years ago
Height of the Volleyball Serve
sveta [45]

Answer:  B)  The ball is 18 feet in the air after 1 second.

Step-by-step explanation:

Find the point on the graph where it hits the 1 second mark and find the value of y, 18 feet.

8 0
3 years ago
Watches a movie that is 1 hour and 45 minutes long. Which number line show when Antoine watches the movie?
ss7ja [257]

Answer:

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Step-by-step explanation:

8 0
2 years ago
5x + 2y=7<br> - 2x + 6y=9
ollegr [7]

Answer:

x = \frac{12}{17} or 0.706

y = \frac{59}{34} or 1.735

Step-by-step explanation:

5x + 2y=7    ----->(eq 1)

- 2x + 6y=9 ----->(eq 2)

Multiply (eq 1) with 3

3×(5x + 2y) = 3×7  

15x + 6y = 21  ----->(eq 3)

substract (eq 3) from (eq 2)

- 2x + 6y - (15x + 6y) = 9-21

- 2x + 6y - 15x - 6y = 9-21

- 2x - 15x + 6y - 6y = 9-21

-17x = -12

x = -12 ÷ -17

x = \frac{12}{17}

put x = \frac{12}{17} in (eq 1)

5*\frac{12}{17} + 2y = 7

2y = 7- 5*\frac{12}{17}

2y = \frac{7*17 - 60}{17}

2y = \frac{119- 60}{17}

2y = \frac{59}{17}

y = \frac{59}{17*2}

y = \frac{59}{34}

6 0
3 years ago
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