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Zielflug [23.3K]
3 years ago
5

Find all the real zeros of x3-2x2-5x+6=0.

Mathematics
1 answer:
WITCHER [35]3 years ago
3 0
(×-1)(×-3)(×+2)
×=1
×=3
×=-2

×1=-2
×2=1
×3=3
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What is the interquartile range of a data set? <br> what does the IRQ tell you about a data set?
Naddik [55]

Answer:

I would help you... But I think that you are supposed to have a picture and there is no picture.

4 0
3 years ago
State whether or not the following triangles are similar. If not, explain why not. If so, write a similarity statement
valentinak56 [21]

9514 1404 393

Answer:

  a) ∆RLG ~ ∆NCP; SF: 3/2 (smaller to larger)

  b) no; different angles

Step-by-step explanation:

a) The triangles will be similar if their angles are congruent. The scale factor will be the ratio of any side to its corresponding side.

The third angle in ∆RLG is 180° -79° -67° = 34°. So, the two angles 34° and 67° in ∆RLG match the corresponding angles in ∆NCP. The triangles are similar by the AA postulate.

Working clockwise around each figure, the sequence of angles from lower left is 34°, 79°, 67°. So, we can write the similarity statement by naming the vertices in the same order: ∆RLG ~ ∆NCP.

The scale factor relating the second triangle to the first is ...

  NC/RL = 45/30 = 3/2

__

b) In order for the angles of one triangle to be congruent to the angles of the other triangle, at least one member of a list of two of the angles must match for the two triangles. Neither of the numbers 57°, 85° match either of the numbers 38°, 54°, so we know the two triangles have different angle measures. They cannot be similar.

7 0
3 years ago
There are 5/4 as many bowls as people. If there are 25 bowls how many people are there?
Iteru [2.4K]

Answer:

20 people

Step-by-step explanation:

Take the amout of bowls (25) and divide by the ratio (5)

    25/5=5

Multiply 5 *4 = 20

25 bowls to 20 people = 25/20 = 5/4

7 0
3 years ago
Factor a number, variable, or expression out of the polynomial shown below. 5x^2 + 9x
Nostrana [21]
X(5x+9)

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4 0
3 years ago
Find the derivative of f(x) = negative 9 divided by x at x = -8.
marusya05 [52]

Answer:

f'(-8)=\frac{9}{64}

Step-by-step explanation:

Given the function

f(x)=\frac{-9}{x}

We can rewrite it as

f(x)=-9x^{-1}

Now we can apply the power rule

f'(x)=9x^{-2}

Now we can rewrite it

f'(x)=\frac{9}{x^{2} }

Now we can plug in x=-8

f'(-8)=\frac{9}{(-8)^{2} }\\f'(-8)=\frac{9}{64}

7 0
3 years ago
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