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Olegator [25]
3 years ago
5

What is the first step in solving the quadratic equation x2 = StartFraction 9 Over 16 EndFraction? Take the square root of both

sides of the equation. Add StartFraction 9 Over 16 EndFraction to both sides of the equation. Square both sides of the equation. Subtract StartFraction 9 Over 16 EndFraction from both sides of the equation.
Mathematics
3 answers:
stepan [7]3 years ago
7 0

Answer:

I'm gonna make this simple the answer is C on ed!!

balu736 [363]3 years ago
5 0

Answer:

The first step is

Take the square root of both sides of the equation

Step-by-step explanation:

we have

x^{2} =\frac{9}{16}

Solve for x

step 1

Take square root both sides

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

the solutions are

x=+\frac{3}{4} and  x=-\frac{3}{4}

therefore

The first step is

Take the square root of both sides of the equation

lyra3 years ago
0 0

The second part might be "Take the square root of both sides"

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What is the approximate value of b, rounded to the nearest tenth?
ozzi

we know that

m∠ZWY=m∠WXY --------> given problem

so

In the right triangle ZWY

tan\ ZWY=\frac{ZY}{YW}=\frac{5}{6}

In the right triangle XWY

tan\ WXY=\frac{WY}{XY}=\frac{6}{a}

\frac{6}{a} =\frac{5}{6} \\ \\5*a=6*6 \\ \\a=\frac{36}{5}=7.2\ units

<u>Find the value of b</u>

<u>Applying the Pythagorean Theorem</u>

In the right triangle XWY

b^{2}=6^{2}+a^{2} \\b^{2}=6^{2}+7.2^{2}\\b^{2}=87.84\\ b= 9.4\ units

therefore

<u>the answer is the option</u>

D) 9.4 units

4 0
3 years ago
Read 2 more answers
PQRS is a rectangle with an area of 3 5cm 2 . Given Y = 12-X. show that x - 12x + 35=0​
pashok25 [27]

Step-by-step explanation:

Given that,

The area of a rectangle, A = 35 cm²

Let x is the length.

Width, Y = 12-x

We know that,

The area of a rectangle is given by :

A=lb

x(12-x)=35\\\\12x-x^2=35\\\\-x^2+12x-35=0\\\\or\\\\x^2-12x+35=0

Hence, x^2-12x+35=0.

4 0
3 years ago
What is the intersection of the lines given by 2y=-x+3 and -y=5x+1? Enter the answer as an ordered pair.
Ivahew [28]

Answer:

(-5/9, 16/9)

Step-by-step explanation:

2y = -x + 3

-y = 5x + 1

To find the intersection, you need to substitute the y-value from the second equation into the first equation.  Rearrange the second equation so that it is equal to y.

-y = 5x + 1

-1(-y) = -1(5x + 1)

y = -5x - 1

Substitute this equation into the y-value of the first equation.

2y = -x + 3

2(-5x - 1) = -x + 3

-10x - 2 = -x + 3

(-10x - 2) + 2 = (-x + 3) + 2

-10x = -x + 5

(-10x) + x = (-x + 5) + x

-9x = 5

(-9x)/(-9) = (5)/(-9)

x = -5/9

Plug this x value into one of the equations and solve for y.

2y = -x + 3

2y = -(-5/9) + 3

2y = 5/9 + 3

2y = 32/9

(2y)/2 = (32/9)/2

y = 32/18 = 16/9

The ordered pair is (-5/9, 16/9).

4 0
3 years ago
867 m as a fraction ....
lesantik [10]

Answer:

867000 / 1000

Step-by-step explanation:

To express in the form of a fraction :

An expression could be said to be in fraction form, if written in the form ; a/b ; where a = numerator and b = denominator

Hence the number :

867 m could be expressed as a fraction :

867 / 1 where 867 = numerator ; 1 = denominator

Or

867000 / 1000 ; 867000 = numerator ; 1000 = denominator

3 0
3 years ago
What is (2x-6)(3x-5) equaled to?
Luba_88 [7]

Answer:

6x^2-28x+30

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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