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
Sergeeva-Olga [200]
3 years ago
5

Does the equation open up or down? Y = -3x2 +7x - 2

Mathematics
2 answers:
stealth61 [152]3 years ago
8 0

Answer:

down

Step-by-step explanation:

Since the coefficient of the x^2 term is negative, the parabola makes a frown and opens upside down

Helga [31]3 years ago
7 0

Answer:

Opens downward, like a frowning face

Step-by-step explanation:

You might be interested in
I need help with question 21. I am stuck on that question.
olga_2 [115]

Answer:25%

believe

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve x2 − 8x + 5 = 0 using the completing-the-square method. (2 points)
RoseWind [281]

Answer:

x = 4 +  \sqrt{11},  \:  \: x = 4 -  \sqrt{11}

Step-by-step explanation:

{x}^{2}  -8x + 5 = 0 \\  \\  {x}^{2}  - 8x +  {4}^{2}  =  - 5 +  {4}^{2}  \\  \\  {(x - 4)}^{2}  =  - 5 + 16 \\  \\  {(x - 4)}^{2}  = 11 \\  \\ x - 4 =   \pm \sqrt{11}  \\  \\ x = 4 \pm \sqrt{11}  \\  \\ x = 4 +  \sqrt{11}, \:  \: x = 4 -  \sqrt{11}

8 0
2 years ago
What is the perimeter of the triangle (4,1) (2,5) (1,-1)
Naya [18.7K]

the perimeter of the triangle=14.38

The coordinates of the triangle (4,1),(2,5),(1,-1);

In geometry, the perimeter of a shape is defined as the total length of its boundary.

The perimeter of the triangle is the sum of all the sides of the triangle =a+b+c (assuming a,b, and c are the sides of the triangle)

By using the distances formula find the length of the sides of the triangle:√[(x₂ - x₁)² + (y₂ - y₁)²],

where (x₁,y₁),(x₂,y₂) are the coordinates ,

a=√[(4 - 2)² + (1- 5)²] = \sqrt 20=4.7

b=√[(2 -1)² + (5 -(-1))²]=\sqrt37=6.08

c=√[(1 -4)² + ((-1)-1)²]=\sqrt13=3.60

the perimeter of the triangle=a+b+c=4.7+6.08+3.60=14.38

hence ,perimeter of the triangle=14.38

Learn more about perimeter of triangle:

brainly.com/question/23935199

3 0
1 year ago
I’ll give 50 points if you can help
lbvjy [14]

Answer:

Simplifying

5x + x = 54

Combine like terms: 5x + x = 6x

6x = 54

Solving

6x = 54

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '6'.

x = 9

Simplifying

x = 9

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
-5 5/6 + (-8 4/5)= what show the work
djverab [1.8K]

Answer:

-13 2/3

Step-by-step explanation:

-5 5/6               5x6= 30 4x5= 20

+                                20/30= 2/3

-8 4/5

-----------      -5 + -8 = -13

-13  2/3

hope this helps

6 0
3 years ago
Other questions:
  • Carmela is growing her hair to donate to a charity. The hair must be a minimum length of 10 inches. Her hair is already 4 inches
    7·1 answer
  • what is the equation of a horizontal line passing through the point (−3, 8)? x = −3 y = 8 x = 5 y = −11
    6·1 answer
  • Help me please 36 = 3z
    9·1 answer
  • I REALLY NEED YOUR HELP
    6·2 answers
  • The figure shows how a leaf meets the stem of a flower to form two angles. the value of x is? ​
    13·1 answer
  • Help 5 ratee????????????
    12·1 answer
  • A watt is a unit of power, which measures energy used per unit time. A kilowatt hour means 1 kilowatt of electricity used contin
    15·1 answer
  • A man intends to withdraw $ 24,000.00 from his savings at the end of 5 years. The man deposits $ 1,500.00 in savings annually an
    8·1 answer
  • Lakelyn has $2,500.00 to invest in a savings account. Savings account 1 earns 4% simple interest and savings account 2 earns 4%
    9·1 answer
  • Student Council is selling t-shirts and hats for $21 and $14, respectively. The club needs to raise at least $2730. They have re
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!