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GuDViN [60]
2 years ago
15

Please help!! i don’t know how to do this please help asap.

Mathematics
1 answer:
Aleks [24]2 years ago
6 0
X = 40y - 16y^2 - 24
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If two angles of an isosceles triangle are congruent, then the sides opposite those angles are congruent. True or false?
inna [77]
It is true. It is an isosceles triagle
5 0
3 years ago
What is an equation of the line that passes through the point (-2,7) and is perpendicular to the line x-6y=42 ?
Natali5045456 [20]

Answer:

The equation of the line that passes through the point (-2,7) and is perpendicular to the line x-6y=42 is

6x+y=-5

Step-by-step explanation:

Given:  

Let,  

point A( x₁ , y₁) ≡ ( -2 , 7)

To Find:  

Equation of Line  that passes through the point (-2,7) and is perpendicular to the line x-6y=42=?  

Solution:  

x-6y=42    ..................Given

which can be written as

y=mx+c

Where m is the slope of the line

∴ y=\dfrac{x}{6}-7

On Comparing we get

Slope = m = \dfrac{1}{6}

The Required line is Perpendicular to the above line.

So,

Product of slopes = - 1

m\times m_{1}=-1\\Substituting\ m\\ \dfrac{1}{6} m_{1}=-1\\\\m_{1}=-6

Slope of the required line is -6

Equation of a line passing through a points A( x₁ , y₁) and having slope m is given by the formula,  

i.e equation in point - slope form

(y-y_{1})=m(x-x_{1})

Now on substituting the slope and point A( x₁ , y₁) ≡ ( -2, 7) and slope = -6 we get

(y-7)=-6(x--2)=-6(x+2)=-6x-12\\\\\therefore 6x+y=-5.......is\ the required\ equation\ of\ the\ line

The equation of the line that passes through the point (-2,7) and is perpendicular to the line x-6y=42 is

6x+y=-5

3 0
3 years ago
What is −3/8 as a decimal and as a percent?
CaHeK987 [17]
To find a fraction as a decimal you would divide the denominator by the numerator.

Decimal:
-3/8 = -.375

Then for the percentage you would move the decimal two places to the right.

Percentage:
-37.5 (Since the number to the right isn't a zero we can't drop it) therefore the percentage would be -37.5%

6 0
3 years ago
A quadratic equation is shown below:
AfilCa [17]

the solutions to a general quadratic equation is

X=-b±√b²-4ac/2a  ,, When ax²+bx+c=0

the discriminant is the expression under the radical b²−4ac

Part A:

discriminant is (-16)² - 4(9)(60) = -1904

there are two complex solutions  

Part B:  

4x² + 8x − 5 = 0

4x² + 10x -2x - 5=0

2x ( 2x + 5) - 1(2 x + 5) =0  

(2x + 5)(2x-1) = 0

      /                     \

    /                          \

2x+5 = 0                 2x-1 =0    

x = -5/2                     x = 1/2

5 0
3 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is . Amie found the volume of the sphere.
iragen [17]

Answer:

i had this one, its multiplied by 2/3

Step-by-step explanation:

i did the test

4 0
3 years ago
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