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3 years ago

Mischa wrote the quadratic equation 0=-x2+4x-7 in standard form. If a = -1, what is the value of c in her equation?

Mathematics

1 answer:

sp2606 [1]3 years ago

3 0

Answer:

c = -7

Step-by-step explanation:

0 = -x² + 4x - 7

Compare to

ax² + bx + c

a = -1 , b = 4 , c = -7

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What is 8.07 × 102 in standard form

SOVA2 [1]

Answer:

8070

Step-by-step explanation:

Given:

8.07

1000

8070

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3 years ago

Arrange the steps in the correct order to express cos3x in terms of cosx cos(2x)cos(x)-sin(2x)(x) [1-sin^2(x)]cos(x)-[2sin(x)cos

noname [10]

cos(3x) = cos(2x+x)

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4 0

4 years ago

Why it is not possible for two lines to be parallel and perpendicular?

max2010maxim [7]

Parallel lines have the same slope. for example, the two lines y = 6x + 3 and
y = 6x - 5 are parallel because they have the same slope, 6x.

the slopes of perpendicular lines are opposite reciprocals, which means that you would flip the numbers of the fraction and make it negative. for example, the opposite reciprocal of -3x is 1/3x.

also, parallel lines never intersect, whereas perpendicular lines intersect at a 90 degree angle.

therefore, it isnt possible for two lines to be both parallel and perpendicular.

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3 years ago

(X^3y^2)^3z^4 simplify

Andru [333]

Answer:

x^9^y^2 z^4

Step-by-step explanation:

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Lelu [443]

Check the picture below.

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3 years ago