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tia_tia [17]
3 years ago
12

Given 25x^2 - 10x = 0, which values of x will satisfy the equation? (Hint: Factor the polynomial into two terms, and find the va

lues of x that will make each term 0.). . A. x = 0 and x = 5/2. . B. x = 0 and x = 2/5. . C. x = 0 and x = 2. . D. x = 0 and x = 5
Mathematics
2 answers:
raketka [301]3 years ago
8 0
25 x² - 10 x = 0
5 x ( 5 x - 2 ) = 0
x = 0  and
5 x - 2 = 0
5 x = 2
x = 2: 5 
x = 2/5
Answer: B ) x = 0 and x = 2/5
8_murik_8 [283]3 years ago
5 0

Answer:

B. x = 0 and x = 2/5

Step-by-step explanation:

To get the value satisfying the equation, we will need to simplify the given equation 25x²-10x = 0 to have:

First we will factor out '5x' which a common factor to have;

5x(5x - 2) = 0

5x = 0 and 5x-2 = 0

From 5x = 0, x =0

From equation 5x-2=0, 5x= 0+2

5x = 2

Dividing both sides by 5 which is the coefficient of x we have;

5x/5 = 2/5

x = 2/5

The solutions will give;

x = 0 and x = 2/5

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Consider the line y = 2x–4.
choli [55]

Parallel slope = 2

This is because the original line has slope 2. Parallel lines have equal slopes.

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Perpendicular slope = -1/2

The original slope 2 or 2/1 turns into -1/2 after flipping the fraction and the sign. Note the original slope and perpendicular slope multiply to -1. This is true for any pair of perpendicular lines where neither line is vertical.

8 0
3 years ago
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BRAINLIEST QUESTION
Debora [2.8K]

Answer:

the answer is triangles ABC and DEC are similar

Step-by-step explanation:

angle C is a common angle for both triangles

angle D is equal to angle A ( corresponding angles)since they are parallel

angle B is also equal to angle B for the same reason as angle D and A

since the three angles of the two angles are equal they are similar

6 0
3 years ago
PLEASE HELP ME!!!!!!!
Airida [17]
<h3>Answer:</h3>

D. This is an experiment because it is applying a treatment

<h3>Step-by-step explanation:</h3>

Experiments and observational studies are both ways to find new information about a hypothesis but in different ways.

Vocabulary

First, to understand the question, let's define the key terms.

  • Experiment - An experiment is when a scientist purposely applies a treatment and interferes with a person's life in order to gather information.
  • Observational Study - This type of study attempts to study a person without interfering with their lives in any way.

These definitions eliminate the answer choices A and C because both of them match the incorrect definition of the term.

Experiment vs. Observational Study

Now, we need to figure out if this specific example is an experiment or an observational study. In this case, the nutritionist is giving a treatment of vitamins. This means that this cannot be an observational study because the scientist is interfering with people. It has to be an experiment because there is a specific treatment being applied.

5 0
2 years ago
Simplify.<br><br> 8−4÷2+5⋅6<br><br> 1. 32<br> 2. 36<br> 3. 54<br> 4. 66
Radda [10]

Answer: 36

Step-by-step explanation:

8-2+30

6+30

36

7 0
2 years ago
Find the fifth term of the binomial expansion.<br> (x2+y5) ^8
OlgaM077 [116]

Answer:

The fifth term of the binomial expansion

T_{5} = 70 x^{8} y^{20}

Step-by-step explanation:

<u><em>Step:1</em></u>

Given that the binomial expansion

     ( x² + y⁵ )⁸

we know that

T_{r+1} = n_{C_{r} } a^{r} x^{n-r} ...(i)

<u><em>Step:2</em></u>

put r = 4  

T_{4+1} = 8_{c_{4} } (x^{2} )^{4} (y^{5} )^{8-4}

T_{5} = 70 x^{8} y^{20}

<u><em>Final answer:</em></u>-

The fifth term of the binomial expansion

T_{5} = 70 x^{8} y^{20}

6 0
3 years ago
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