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grigory [225]
4 years ago
7

Find both answers for x. 8x-4=x^2-2x+7x-15

Mathematics
1 answer:
melomori [17]4 years ago
8 0

Answer:

Step-by-step explanation:

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SOMEONE PLS HELP QUICK WILL GIVE BRAiNLIEST
skad [1K]

Answer:

1. x^2-9x+18

2. 2x^2-4x-16

3. 3x^2-19x-14

4. 6x^2 +14x + 8

Step-by-step explanation:

1. (x-3)(x-6)

x^2 - 6x - 3x +18 = x^2-9x+18

2. (2x+4)(x-4)

2x^2-8x+4x-16 = 2x^2-4x-16

3. (x-7)(3x+2)

3x^2+2x-21x-14 = 3x^2-19x-14

4. (3x+4)(2x+2)

6x^2+6x+8x+8 = 6x^2 +14x + 8

6 0
3 years ago
What kind of triangle is 15,16,21
maw [93]

Answer:

here is my answer is took me alot of time

Step-by-step explanation:

The calculator solves the triangle specified by three of its properties. Each triangle has six main characteristics: three sides a, b, c, and three angles (α, β, γ). The classic trigonometry problem is to specify three of these six characteristics and find the other three. Of course, our calculator solves triangles from any combinations of main and derived properties such as area, perimeter, heights, medians, etc. Usually by the length of three sides (SSS) or side-angle-side or angle-side-angle.

How does this triangle calculator solve a triangle?

The calculation of the general triangle has two phases:

expert phase - which is different for different tasks. From the entered data, the calculator tries to calculate the sizes of three sides of the triangle. He gradually applies the knowledge base to the entered data, which is represented in particular by the relationships between individual parameters of the triangle. These are successively applied and combined, and the parameters of the triangle calculate. Calculator iterate until the triangle has calculated all three sides.

For example, from the given area of the triangle and the corresponding side, the appropriate height is calculated. From the known height and angle, the adjacent side, etc., can be calculated. They use knowledge, e.g., formulas (relations) Pythagorean theorem, Sine theorem, Cosine theorem, Heron's formula, solving equations and systems of equations.

The second stage is the calculation of the properties of the triangle from the known lengths of its three sides.

Examples of how to enter a triangle:

3 0
3 years ago
Find the volume of a cylinder that has a diameter of 12 in. and a height of 15 in
daser333 [38]

Answer:

<h3>\sf{ \boxed{ \bold{1697.14}}}</h3>

Step-by-step explanation:

Given,

diameter ( d ) = 12 in

height ( h ) = 15 in

<u>finding </u><u>the </u><u>radius </u><u>of </u><u>a </u><u>cylinder</u>

Radius is just half of diameter.

Radius ( r ) = 12 / 2 = 6 in

<u>finding </u><u>the </u><u>volume </u><u>of </u><u>a </u><u>cylinder </u><u>having </u><u>radius </u><u>of </u><u>6</u><u> </u><u>in </u><u>and </u><u>height </u><u>of </u><u>1</u><u>5</u><u> </u><u>in</u>

Volume of a cylinder = <u>\sf{\pi  \:  {r}^{2} h}</u>

⇒\sf{ \frac{22}{7}  \times  {6}^{2}  \times 15}

⇒\sf{ \frac{22}{7}  \times  36 \times 15}

⇒<u>\sf{1697.14} \: in</u>

Hope I helped!

Best regards!!

6 0
4 years ago
Read 2 more answers
Identify which type of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine customer opini
Gennadij [26K]

Answer:

Cluster

Step-by-step explanation:

According to the Question,

  • Given this, Daimler−Chrysler randomly selects 100 service centers during a certain week and surveys all customers visiting the service centers.

This is a Cluster type of Sampling.

  • Cluster sampling is a type of sampling method in which the population under study is divided into different groups known as clusters before simple random samples are selected from each population cluster. The analysis of such a population is carried out based on the sampled clusters.
  • This method is adopted when a researcher does not have access to the whole population under research.

Advantages of cluster sampling

  • The research method only needs fewer resources.
  • The sample under review is feasible.

Note: Cluster sampling is not as accurate as simple or stratified random sampling.

4 0
3 years ago
A moving company has one large truck for furniture and one small truck for boxes. During one move, it took the large truck 4 hou
s2008m [1.1K]

Answer:

large truck = 45miles small truck = 60miles

Step-by-step explanation:

180/4 and 180/3

4 0
4 years ago
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