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Gennadij [26K]
3 years ago
5

9+10=? A. 21 B. 4 C. 19 D. 18

Mathematics
2 answers:
snow_tiger [21]3 years ago
8 0
The answer is c because if you have 9 legos and your friends gives you 10 You have now 19 legos
Bad White [126]3 years ago
6 0

Answer:

19

Step-by-step explanation:

Ten more than 9 is 19

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On a coordinate plane, a parabola opens up. It goes through (negative 2, 4), has a vertex at (0.25, negative 6), and goes throug
serg [7]

The statements true about the the function f(x) = 2x2 – x – 6 are-

  • The vertex of the function is (one-quarter, negative 6 and one-eighth).
  • The function has two x-intercepts.

<h3>What is vertex of parabola?</h3>

The vertex of parabola is the point at the intersection of parabola and its line of symmetry.

Now the given function is,

f(x) = 2x^2 – x – 6

Also, it is given that the vertex is located at (0.25, -6)  and the parabola opens up, the function has two x-intercepts.

Comparing the given function with standard form,

f(x) = a x^2 bx + c

By comprison we get,

a = 2

b = -1

c = -6

Now, x-coordinate of vertex is given as,

x = -b/2a

put the values we get,

x = -(-1)/2*2

or, x = 1/4

Put the value of x in given function, so y-coordinate of the vertex is given as,

f(1/4) = 2(1/4)² - 1/4 - 6

        = -49/6

       = -6 1/8

Hence, The statements true about the the function f(x) = 2x2 – x – 6 are-

  • The vertex of the function is (one-quarter, negative 6 and one-eighth).
  • The function has two x-intercepts.

More about vertex :

brainly.com/question/86393

#SPJ1

3 0
1 year ago
PLEASE SOLVE IT WITH EXPLANATION!!<br>DONT TAKE POINTS :)<br>​
zloy xaker [14]

Step-by-step explanation:

We are asked to simply (2√5 + 3√2)². Using formula: (a + b)² = a² + b² + 2ab. Let's say 2√5 = a, 3√2 = b. So,

→ (a + b)² = a² + b² + 2ab

→ (2√5 + 3√2)² = (2√5)² + (3√2)² + 2(2√5)(3√2)

We are aware about the fact that root means 1/2 and square of root means 2/2 that is 1. Using this we get:

→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2√5)(3√2)

Solve the brackets, to do so first put the like terms in one box.

→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2*3)(√5)(√2)

Solve the rest calculations.

→ (2√5 + 3√2)² = 20 + 18 + 2(6)(√10)

→ (2√5 + 3√2)² = 38 + 12√10

Option (a) (38 + 12√10) is the correct option.

4 0
2 years ago
Read 2 more answers
3. Solve for y: -5x + 2y = 14
Schach [20]

Answer:

y= -1

Explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

8 0
2 years ago
Read 2 more answers
a coin weighs 3/4, debra picked up 6 of these coins, what is the total weight of coins she picked up?
Keith_Richards [23]

Answer:

4.5

Hope this helps

4 0
3 years ago
Find the mean of the data set if necessary round to the nearest tenth 16, 12, 8, 22, 25, 8
Taya2010 [7]

15.2

16 + 12 + 8 +  22 +  25 +  8 = 91 / 6 = 15.16 = 15.2

4 0
2 years ago
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