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4 years ago

| 2x-3 | +5=4 solve equation

1 answer:

5 0

I 2 x - 3 I + 5 = 4

Isolate absolute :

I 2 x - 3 I = 4 - 5

I 2 x - 3 I = -1

Absolutes cannot be negative

No solution for x ∈ R

hope this helps!

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(2,5) and (0,1) in slope intercept form

ohaa [14]

y = 2x + 1 is the equation of line in slope intercept form

Solution:

Given that we have to write the slope intercept form

Let us first find the slope of line

The slope of line is given by formula:

$m = \frac{y_2-y_1}{x_2-x_1}$

Here the given points are (2, 5) and (0, 1)

$(x_1, y_1) = (2, 5)\\\\(x_2, y_2) = (0, 1)$

Substituting the values in formula,

$m = \frac{1-5}{0-2}\\\\m = \frac{-4}{-2}\\\\m = 2$

Thus slope of line is 2

The equation of line in slope intercept form is given as:

y = mx + c --------- eqn 1

Where, "m" is the slope and "c" is the y intercept

Substitute m = 2 and (x, y) = (0, 1) in eqn 1

1 = 2(0) + c

c = 1

Substitute c = 1 and m = 2 in eqn 1

y = 2x + 1

Thus the equation of line in slope intercept form is found

4 0

3 years ago

Heron’s formula: Area = Triangle PQR has sides measuring 9 feet and 10 feet and a perimeter of 24 feet. What is the area of tria

VladimirAG [237]

Hello,

Let's assume a,b,c the 3 sides of the triangle.

a=9
b=10
c=24-a-b=5

$p= \dfrac{a+b+c}{2} =12\\

S= \sqrt{p(p-a)(p-b)(p-c)} = \sqrt{12*3*2*7} = \sqrt{504} =22,4499...\approx{22}$

4 0

4 years ago

Read 2 more answers

What are the sine, cosine, and tangent of 11 pi over 6 radians? sin θ = square root 3 over 2; cos θ = 1 over 2; tan θ = square r

Anettt [7]

We know that

θ=11 pi /6 radians-----> 11*180/6----> 330°
330°----> belong to the IV quadrant
so
cos θ----> is positive
sin θ----> is negative
tan θ----> is negative

330°-----> 360°-330°---> 30°

sin 30°------> 1/2
sin θ=-1/2-----> remember that sin θ is negative

cos 30°------> √3/2
cos θ=√3/2

tan 30°------> (1/2)/(√3/2)----> √3/3
tan θ=-√3/3-------> remember that tan θ is negative

the answer is
sin θ = negative 1 over 2; cos θ = square root 3 over 2; tan θ = negative square root 3 over 3

7 0

3 years ago

Which expression represents:

Blababa [14]

Answer:

(20+5)×10

Step-by-step explanation:

Pemdas said that brackets is first

so 20+5 is solved first

then it's multiplication or devision in this case multiplication is here

20+5=25

25×10=250

8 0

3 years ago

Please answer this question now in two minutes

Svetach [21]

Answer:

i cant see the pic

Step-by-step explanation:

7 0

3 years ago