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4 years ago

Solve this quadratic equation using the quadratic formula. 2x2 - 10x + 7 = 0

Mathematics

2 answers:

frez [133]4 years ago

8 0

Answer:

Step-by-step explanation:

2x^2-10x+7 A=1, B=-10. C=7

-(-10)±√-10^2-4(1)(7)

------------------------------

2(1)

10±√100-28

----------------

10±√72

-----------

10±8.485281374

10+8.485281374 =9.24

10-8.485281374 =0.76

alexgriva [62]4 years ago

5 0

Answer:

x= 5/ 2 + 1/2 √11

or x= 5/ 2 + −1/ 2 √11

Step-by-step explanation:

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Answer:

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3 years ago

Find the measure of angle ABD if the measure of angle DBC is 42 degrees and the measure of angle ABC is 88 degrees

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3 years ago

4(PX+1)=64 what is the value of x in terms of p and what is the value of x when p is -5 ?

Oksana_A [137]

Answer:

x = -3

Step-by-step explanation:

$4(PX+1)=64\\\\p= -5$

Substitute -5 for p in the given equation and solve

$4(-5(x)+1)=64\\\\\mathrm{Divide\:both\:sides\:by\:}4\\\frac{4\left(-5x+1\right)}{4}=\frac{64}{4}\\\\Simplify\\-5x+1=16\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\-5x+1-1=16-1\\\\Simplify\\-5x =15\\\\\mathrm{Divide\:both\:sides\:by\:}-5\\\frac{-5x}{-5}=\frac{15}{-5}\\\\Simplify\\x = -3$

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3 years ago

In a survey, 56 percent of people surveyed stated truthfully that they were married, while 30 percent of the people surveyed who

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Answer:

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Step-by-step explanation:

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4 years ago

If ABCDE is reflected over the x-axis and then translated 3 units left, what are the

Aloiza [94]

Answer:

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Step-by-step explanation:

A. Reflection

When you reflect a point (x, y) across the x-axis, the x-coordinate remains the same, but the y-coordinate gets the opposite sign.

Thus, D (-3,-1) ⟶ D' (-3, 1)

B. Translation

When you translate a point horizontally, its x-coordinate changes, but the y-coordinate. remains unchanged.

You translated the point 3 units to the left.

D'(-3, 1) ⟶ D"(-6,1)

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