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Allisa [31]
3 years ago
12

ALGEBRA II HELP :/

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

18

Step-by-step explanation:

f(x) = x³+4x²-8x-6

P(a) <=> P(x)

-2 | 1 4 -8 -6

|

| -2 -4 24

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

1 2 -12 18

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To estimate the slope of the tangent line at t = 15, we average the slopes of the adjacent secant lines for t = 10 and t = 20. A
Nata [24]

Answer:

  -130.8

Step-by-step explanation:

The average of the two slope values is ...

  (-148.8 -112.8)/2 = -261.6/2 = -130.8

The slope of the tangent line at t=15 is approximately -130.8.

4 0
3 years ago
The sum of two numbers is 21.
mafiozo [28]

Answer:

Pretend that x and y represents the 2 numbers that we need to find.

According to the information, we know that:

x + y = 21

6x = y

Replace y in the first equation with 6x (because they are equal to each other according to the second equation):

x + y = 21

x + 6x = 21

7x = 21

x = 21/7 = 3

Now have two ways to find y, both will give us the same result:

3 + y = 21 ⇔ y = 21 - 3 = 18

6 · 3 = y ⇔ y = 18

So the numbers that we need to find are 3 and 18.

7 0
3 years ago
Read 2 more answers
Please help me
bixtya [17]

Answer:

<em>x=60°</em>

<em>x=48°</em>

<em>x=21°</em>

Step-by-step explanation:

<u>Inequalities</u>

The sum of the exterior and the interior angle of a triangle is 180°.

The measure of an exterior angle of a triangle is called x, thus the interior angle is 180-x.

This angle is said to be at least twice x, thus:

180 - x ≥ 2x

Adding x:

180 ≥ 3x

Dividing by 3:

60 ≥ x

Swapping the inequality:

x ≤ 60°

The measure of x must be less or equal to 60°.

Three possible solutions are:

x=60°

x=48°

x=21°

7 0
3 years ago
(c) -4, 0, 4, 8, ...​
inna [77]
Is there a question..?
4 0
3 years ago
2,072 divided by 86 pls help me I am in 5 grade
balu736 [363]
2072 divided by 86 is 24.093023
Hope i helped
7 0
3 years ago
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