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3 years ago

Please help I’ll make you the brainiest

Mathematics

1 answer:

son4ous [18]3 years ago

6 0

Answer:

Step-by-step explanation:

7-3=4

4x4=16

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Please i need help .........

slava [35]

Answer:

Step-by-step explanation:

20-(4+14)/3

20-(18)/3

20-6

Hope this helped.

A Brainliest is always appreciated.

4 0

2 years ago

Read 2 more answers

Find the elapsed time when starting time is 12:10 p.m. and finishing time is 2:05 p.m.

nikitadnepr [17]

Answer:

1 hr 55 mins

Step-by-step explanation:

50 mins between 12:10 and 1:00 p.m.

Add 5 mins to change 2:05 to 2:00.

55 mins and 1 hr

3 0

3 years ago

In a certain normal distribution of scores, the mean is 40 and the standard deviation is 3. Find the z-score corresponding to a

Ronch [10]

Answer:

A) 4.67

Just took the quiz and this was correct. :)

7 0

3 years ago

Read 2 more answers

5.Find the roots of the parabola given by the following equation.

snow_tiger [21]

Answer:

Part 5) The roots are x=-3 and x=1.5

Part 6) The solution on a number line is the shading area below of the line y=-1/3 (close circle)

Step-by-step explanation:

Part 5) Find the roots of the parabola given by the following equation

$2x^{2} +5x-9=2x$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$2x^{2}+5x-2x-9=0$

$2x^{2}+3x-9=0$

$a=2\\b=3\\c=-9$

substitute in the formula

$x=\frac{-3(+/-)\sqrt{3^{2}-4(2)(-9)}} {2(2)}$

$x=\frac{-3(+/-)\sqrt{81}} {4}$

$x=\frac{-3(+/-)9} {4}$

$x=\frac{-3(+)9} {4}=1.5$

$x=\frac{-3(-)9} {4}=-3$

therefore

The roots are x=-3 and x=1.5

Part 6) Solve the inequality and graph the solution on a number line.

$-3(5y-4)\geq 17$

Solve for y

$-15y+12\geq 17$

Subtract 12 both sides

$-15y\geq 17-12$

$-15y\geq 5$

Multiply by -1 both sides

$15y\leq -5$

Divide by 15 both sides

$y\leq -1/3$

The solution is the interval -----> (-∞, -1/3]

All real numbers less than or equal to negative one third

The solution on a number line is the shading area below of the line y=-1/3 (close circle)

The graph in the attached figure

7 0

3 years ago

Hallar la ecuación de la recta qué pasa por el punto (2,3) y cuya abscisa en el origen es el doble que la ordenada en el origen

Verdich [7]

Sería 5 pues porque yo solo los agregaría

5 0

2 years ago