3 years ago

The zeros of the function f(x)=3x^2-3x-6 are

Mathematics

1 answer:

Mrac [35]3 years ago

7 0

$3x^2-3x-6=0\\
3(x^2-x-2)=0\\
x^2-x-2=0
x^2+x-2x-2=0\\
x(x+1)-2(x+1)=0\\
(x-2)(x+1)=0\\
x=2 \vee x=-1
$

You might be interested in

Suppose you are given two quadrilaterals, ABCD EFGH. If the similarity ratio of ABCD to EFGH is 4:3, and if EH = 60, find AD.

Sophie [7]

4/3 = AD/EH (similarity)

hence, AD= EH*4/3=60*4/3=80

so, 80

4 0

3 years ago

67.935 in expanded form in fraction form after the decimal

Colt1911 [192]

Hello,

67.935=67+935/1000=67+187/200 = 67|187/200
======================================

5 0

3 years ago

Find the slope and y intercept

alexgriva [62]

Slope: 5/1 (5 if simplified)
y-intercept: 10

7 0

3 years ago

Three locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side o

nlexa [21]

Answer:

74.31353

=74 m

Step-by-step explanation:

given that three locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side of the river. To find the distance AB across a river, a distance BC of 241 meters is laid off on one side of the river. It is found that the angle at point B is 108.6° and the angle at point C is 14.9°.

we have information about triangle ABC as side BC =241, Angle B = 108.6 and angle C = 14.9 degrees.

Hence this is an obtuse scalene triangle.

Angle ∠A = 56.5° (III angle)

Using sine formula we get

$\frac{AB}{sin 14.6} =\frac{BC}{sin 56.5} \\AB = 74.31353$

So distance AB is 74 metres.

5 0

3 years ago

The expression 7d gives the number of days in d weeks . Evaluate 7d for d=12. How many days are in 12 weeks?

RSB [31]

Answer:

84 days are in 12 weeks

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers