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BARSIC [14]
2 years ago
11

Please help! i’ve been stuck on this for over 10 minutes.

Mathematics
1 answer:
Natali [406]2 years ago
3 0
Pick two points in the graph
(-2,0) and (3,4)
Slope: (y2-y1)/(x2-x1)
(4-0)/(3+2)
Slope is 4/5
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Which equation represents the line that passes through the point (4, -5) and is perpendicular to the line x + 2y = 5?
Lerok [7]

Answer:

y = 2x - 13

Step-by-step explanation:

Equation of a line is y = mx + c, m is the gradient and c is the intercept

The line passes through points 4 and -5, x is 4 and y is -5

-5 = 4m + c

When two lines are perpendicular, the products of their gradients are equal to -1, m1 * m2 = -1

x + 2y = 5

2y = -x + 5

y = (-1/2 * x) + 5

therefore m = -1/2

m1 * m2 = -1

m * -1/2 = -1

-m = -2 , therefore m = 2

-5 = 4 * 2 + c

c = -5 - 8, which is -13

Therefore the equation for the line is

y = 2x - 13

7 0
3 years ago
Help! how do i answer this
navik [9.2K]
Idk but ima try to figure it out ok
7 0
3 years ago
Whats the square root of 33
photoshop1234 [79]

Answer:

The square root of 33 is 5.74456264654

3 0
3 years ago
Read 2 more answers
If 25% of a number is 12, what is 75% of that number?
snow_tiger [21]

Answer:

36

Step-by-step explanation:

\frac{0.25}{0.75} =\frac{12}{x} \\

0.75 *12=9

\frac{9}{0.25} =36

8 0
3 years ago
The volume of a cuboid is 176cm
IRISSAK [1]

Answer:

.08cm or 0.08cm

Step-by-step explanation:

First of all, we can see that 20mm is in millimeters, not centimeters.

If we convert the ones in centimeters to millimeters, it will result in decimals, which I want to avoid, but you could also do it that way.

There are 10 mm in 1 cm, so I multiply all of the values in cm by 10.

So now, we have that the volume is 1760mm, the length is 110mm, and the width is 20mm.

The formula for the volume of a cuboid is: w*l*h = volume

We have the width, length, and volume, so let's plug it in.

20*110*h=1760

To solve for h:

1. Multiply 20 and 100

2200*h=1760

2. Divide both sides by 2200

h = 1760/2200

3. Divide right side

h = 0.8

Keep in mind that this is in millimeters. In centimeters, it would be .08

6 0
3 years ago
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