1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
3241004551 [841]
2 years ago
7

zacharias is using the quadratic formula to solve the equation 0 = –2x2 5x – 3. he begins by substituting as shown. quadratic fo

rmula: x = substitution: x = what error did zacharias make? the –5 should be 5. the 52 should be –52. the 2 in the numerator should be –2. the 2 in the denominator should be –2.
Mathematics
2 answers:
GenaCL600 [577]2 years ago
7 0

Answer:

The 2 in the numerator should be -2.

Step-by-step explanation:

We are given that a quadratic equation

-2x^2+5x-3=0

We have to find error made by Zacharias.

We have a=-2,b=5,c=-3

Quadratic formula : D=b^2-4ac

Then, x=\frac{-b\pm\sqrt{D}}{2a}

Substitute the values in the given formula

D=(5)^2-4(-2)(-3)

x=\frac{-5\pm\sqrt{(5)^2-4(-2)(-3)}}{2(-2)}

Therefore, the 2 in the numerator should be -2 .This is the error made by Zacharias.

Mice21 [21]2 years ago
6 0
<span>the equation -2x² + 5x -3=0, we notice that the sum of the coefficient equals 0, -2+5-3=0, if such a case happens, the solution of the previous equation will be, x=1 (always) and x= c/a, a=-2, and c=-3, so x=-3/-2, finally, the answer is: the 2 in the denominator should be -2</span>
You might be interested in
-3x+8y=48<br><br> What does x and y equal?
nekit [7.7K]
X equals -8 and y equals to 3
3 0
2 years ago
Find the slope of the line
morpeh [17]
Slope is 2/5

Step by step you go up 2 and over 5 to reach the next point
4 0
2 years ago
Read 2 more answers
Help pls ! I’ll mark brainliest
alexandr402 [8]

Answer:

y = x + 3

Step-by-step explanation:

Y in math is usually referred as the output.

X is usually the input.

In other words,

<em>y</em><em> </em><em>is</em><em> </em><em>3</em><em> </em><em>more</em><em> </em><em>greater</em><em> </em><em>than</em><em> </em><em>x</em><em>.</em>

<em>In</em><em> </em><em>other</em><em> </em><em>words</em><em>,</em>

<em>y = x + 3</em>

5 0
2 years ago
What is the sum or difference of 3y^5-10y^5
Andrej [43]
The answer would be -7y^5


Hope it helps!!
8 0
2 years ago
There are 15 pieces of fruit in a bowl and six of them are apples. What percentage of the pieces of fruit in the Bowl are apples
aleksklad [387]

Answer:

40%

Step-by-step explanation:

amount of apples = 6

total amount of fruits = 15

percentage of apples

= 6/15 x 100%

= 40%

3 0
1 year ago
Other questions:
  • Order the numbers in each list from least to greatest. <br>0,|-14|, 13, -12, |-16|,17​
    11·1 answer
  • Each day at lunchtime at least 53 people buy food from a food truck. Write an inequality that represents this situation
    6·2 answers
  • (3 feet 11 inches) x 10
    14·1 answer
  • The volume, V, of a rectangular prism is determined using the formula , where l is the length, w is the width, and h is the heig
    5·2 answers
  • 5 5/6+(-1/6)+2 2/3+(-2 2/3)
    6·2 answers
  • Help me please with This
    5·2 answers
  • *QUICK ANWSER*
    14·1 answer
  • Find an example of an inequality used in the real world and describe it using a number line.
    5·1 answer
  • I rlly need help pls help me
    12·1 answer
  • Every 11 days my dog eats 3 cupcakes. How many does my dog eat in 22 days?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!