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Len [333]
2 years ago
8

Heeelppp please is for today

Mathematics
2 answers:
arsen [322]2 years ago
7 0

Answer:

x = −2 or x = 4.23606797749979 or x = −0.2360679774997898

Step-by-step explanation:

Subtract x^3-2x^2-9x-2 from both sides.

0 − (x3−2x2−9x−2) = x3−2x2−9x−2 − (x3−2x2−9x−2)

−x3+2x2+9x+2=0

Factor left side of equation.

(−x−2)(x2−4x−1)=0

Set factors equal to 0.

−x−2=0 or x2−4x−1=0

butalik [34]2 years ago
4 0
This picture shows how to think and answer.

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Two sales representatives leave from the same office. One travels 20 miles due north and the other travels 5 miles due west. How
ohaa [14]

Answer:

d = 20.6 miles

Step-by-step explanation:

Given that,

Two sales representatives leave from the same office. One travels 20 miles due north and the other travels 5 miles due west.

It is required to find the distance between two representatives. It it is d. It can be calculated as the resultant if two values as follows :

d=\sqrt{20^2+5^2} \\\\=20.61\ mi

So, the sales representative are 20.6 miles apart. Hence, the correct option is (c).

8 0
3 years ago
QUICK ANSWER PLEASE Evaluate for x = ─ 3 and y = 4. Problem is -1/2(2x-y)
OLga [1]

Answer:

5

Step-by-step explanation:

when the question asks for evaluate, always substitute the expression with the values given.

So, her x = -3 and y=4

So we find 1/2 of 2x - y

This is also half of -6-4 = -half of -10 = 5

Hope this helps,

Good Luck

7 0
3 years ago
Read 2 more answers
Wilma is 5 times as old as yvonne. in ten years, yvonne's age will be a third of wilma's age. how old are they now?
SVEN [57.7K]

Using a system of equations, it is found that Wilma is 50 years old and Yvonne is 10 years old.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are given as follows:

  • Variable x: Wilma's age.
  • Variable y: Yvonne's age.

Wilma is 5 times as old as yvonne, hence:

x = 5y.

In ten years, yvonne's age will be a third of wilma's age, hence:

y + 10 = \frac{1}{3}(x + 10)

Since x = 5y:

y + 10 = \frac{1}{3}(x + 10)

y + 10 = \frac{1}{3}(5y + 10)

3y + 30 = 5y + 10

2y = 20.

y = 10.

Then:

x = 5y = 5 x 10 = 50.

Wilma is 50 years old and Yvonne is 10 years old.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

3 0
2 years ago
What is 19.1×10^8 cm/min in meters per hour?
katen-ka-za [31]
19.1x10^8 cm in metres would be 19.1x10^6. 19.1x10^6 metres/min in metres/hour would be 1.146x10^7 metres/hour.

Answer:
1.146x10^7 m/h
6 0
4 years ago
What do l do with this problem
djyliett [7]
Well 18 would have to be 90 degrees because it’s a right angle

Than 17 is 23 degrees because 180/2 is 90 and 90-67=23
4 0
3 years ago
Read 2 more answers
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