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solong [7]
2 years ago
10

Find the value of 4x2 + 2y where y= 0.5 and x= 3

Mathematics
1 answer:
Citrus2011 [14]2 years ago
7 0

Answer:

37

Step-by-step explanation:

substitute the given values for x and y into the expression

4x² + 2y

= 4(3)² + 2(\frac{1}{2} )

= 4(9) + 1

= 36 + 1

= 37

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Given the following relations on the set of all people. Check ALL correct answers from the following lists: (a) a is older than
aliina [53]

Comlete question is;

Given the following relations on the set of all people. Check ALL correct answers from the following lists:

(a) a is older than b;

A. antisymmetric

B. irreflexive

C. transitive

D. reflexive

E. symmetric

(b) a and b have a common grandparent;

A. reflexive

B. symmetric

C. irreflexive

D. transitive

E. antisymmetric

(c) a has the same first name as b;

A. reflexive

B. irreflexive

C. transitive

D. symmetric

E. antisymmetric

(d) a and b were born on the same day;

A. symmetric

B. reflexive

C. transitive

D. antisymmetric

E. irreflexive

Answer:

a) Options A, B & D.

b) Options C & D.

c) Options C, D & E

d) Options A, B & C

Step-by-step explanation:

a) Options A, B & D.

- It's irreflexive because b is not older than a.

- It's transitive because if a is older than b as we are told and b is older than c, then we can say that a is older than c.

- It's antisymmetric because if a is older than b, then we can say that b is not older than a.

b) Options C & D.

- It's symmetric because if a & b have a common grandparent, then we can say that b and a have a common grandparent.

- It's reflexive because a and b have common grandparents and thus implies all of a's grandparents.

c) Options C, D & E are correct.

It could be Transitive, symmetric or antisymmetric.

d) Options A, B & C are correct.

5 0
3 years ago
What’s the circumference of the circle D equals 6 feet
Lorico [155]

Answer:

About 18.5 feet

Step-by-step explanation:

The circumference of a circle can be found using:

c=\pid

We know d, or diameter is 6, so we can plug that it

c=\pi6

Multiply

c=18.8495559215

Rounded to the nearest hundreth

c=18.50 feet

The circumference is about 18.5 feet

4 0
3 years ago
Read 2 more answers
Jacob bought a place mat. The place mat has four sides and only one pair of parallel sides. Which could be the shape of Jacob's
MArishka [77]
Trapezoid is the best option
8 0
3 years ago
Read 2 more answers
The total number of degrees, D, in an n-sided polygon is given by the formula D=180(n-2). When Janelle solves for n, she gets n=
Rus_ich [418]
<span>D = 180 * (n -2)
D = 180n -360
180n = D +360
n = (D / 180) + 2

So, the answer is "A"
And we can test this with a square, sum of angles = 360
n = (D / 180) +2
n = (360 / 180) +2
number of sides = 4
correct

Source:
http://www.1728.org/polygon.htm



</span>
3 0
3 years ago
Read 2 more answers
Which of the following is not an irrational number? 1) 5+√5 2) (2+√5)√5 3) (2+√5) (2-√5) 4) 5√5​
Aleonysh [2.5K]

Answer:

3

Step-by-step explanation:

number 3 option is correct

7 0
3 years ago
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