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
alex41 [277]
3 years ago
10

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

mula: 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:
Triss [41]3 years ago
6 0

Answer:

The 2 in the denominator should be –2.

Step-by-step explanation:

a=-2 and Zacharias did not include the negative.

aliya0001 [1]3 years ago
3 0

Answer:

D is the answer

Step-by-step explanation:

You might be interested in
Which one is greater 4.159 or 4.152????.
Illusion [34]
The first option is greater.
6 0
2 years ago
Read 2 more answers
1. A single scoop ice cream cone is made up of a cone filled with ice cream and a half
tatiyna

Answer:

2.515

Step-by-step explanation:

1. First you add the equation for a cone and a half sphere

(1/3*pi*r^2*h)+(1/2*4/3*pi*r^3)

2. You replace h with 2*r2 because height is 2*Diameter

(1/3*pi*r^2*r2)+(1/2*4/3*pi*r^3)

3. You make the equation equal 100

(1/3*pi*r^2*r2)+(1/2*4/3*pi*r^3)=100

4. Solve for

r=2.515

8 0
3 years ago
A one day trip to new york, mary spent $6.25 for breakfast and 8.95 for lunch. She can spend no more than an average of $8.50. H
zysi [14]

Mary spent $10.30 on dinner to stay in budget.

Step-by-step explanation:

Amount spent on breakfast = $6.25

Amount spent on lunch = $8.95

Amount spent on dinner = x

Average = $8.50

Average = \frac{Sum\ of\ values}{No.\ of\ values}

8.50 = \frac{6.25+8.95+x}{3}\\8.50=\frac{15.20+x}{3}

Multiplying both sides by 3

8.50*3=\frac{15.20+x}{3}*3\\25.50=15.20+x\\25.50-15.20=x\\x=10.30

Mary spent $10.30 on dinner to stay in budget.

Keywords: Average, addition

Learn more about addition at:

  • brainly.com/question/4694425
  • brainly.com/question/4695279

#LearnwithBrainly

7 0
3 years ago
Find the height of a square pyramid that has a volume of 8 cubic feet and a base length of 2 feet
Karolina [17]
It would be 6 units high
5 0
3 years ago
Read 2 more answers
A coin and a die are tossed. Calculate the probability of getting tails and a 5.
e-lub [12.9K]

Answer:

1/4

Step-by-step explanation:

2/8 a die has has 6 sides and a coin has 2 sides add them up thats 8 sides in total. Then you get 2/8 simplify it and you get 1/4. I'm bad at Math but I'm pretty sure this is right.

7 0
2 years ago
Other questions:
  • Which of the following statements is true? A. All relations are functions, and all functions are relations. B. All relations are
    10·1 answer
  • Finding Higher-Order Derivatives In Exercise, find the second derivative of the function.
    14·1 answer
  • What is 23.62 as a fraction
    10·1 answer
  • Eight minus two times a number is equal to the number plus 17. find the number
    12·1 answer
  • What does it mean for the findings of a statistical analysis of data to be statistically​ significant?Choose the correct answer
    12·1 answer
  • Evaluate. -1/2y + 3 = -12
    11·1 answer
  • The triangle below are similar Which similarity statements describe the relationship between the two triangles? Check all that a
    8·1 answer
  • Determine the range of the graph
    12·1 answer
  • What is the scale factor of figure b to a
    8·1 answer
  • 11. Graph the following equation and if​ possible, determine the slope.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!