Simplify the following expression bracket parentheses 3 x 6 parentheses Plus parentheses 5 x 2 parentheses bracket divided by 7

PLEASE PLEASE PLEASE PLEASE PLESE HELP ME???/!?!?!?!!? I'LL GIVE BRAINLY, POINTS, MEDAL, THNAKS

In-s [12.5K]

The correct answer for part A is 5x² +7x -4. 5x³ -x² -8x -7 is the right answer for part B. Polynomials are always closed if under addition or subtraction. The answers of both parts A and B are polynomials.

Hope this helps!

~LENA~

8 0

3 years ago

A greeting card uses a geometric design containing 4 congruent kites. The card is 4 inches wide and 8 inches long. What is the a

Gnom [1K]

Answer: 4 sq. in

Step-by-step explanation:

From the question, the card is 8 inches long. Therefore, the length of the vertical diagonal of 1 kite + the length of the vertical diagonal of other kite = 8

Since we have been told that the kites are congruent, therefore the length of the vertical diagonal of both kites will be thesame

Therefore, 2(length of the vertical diagonal of 1 kite) = 8

Therefore, the length of the vertical diagonal of 1 kite will be= 4 inches

The width of the card = 4 inches

Therefore, the length of the horizontal diagonal of 1 kite + the length of the horizontal diagonal of another kite =4

Since the kites are congruent, therefore, the length of the horizontal diagonal of both kites are the same

Therefore, 2(length of the horizontal diagonal of 1 kite) = 4

Therefore, the length of the horizontal diagonal of 1 kite will be= 2 inches

Therefore, the length of the vertical diagonal of the kite= 4 inches and the horizontal diagonal= 2 inches

So, Area of kite = pq/2

Where p and q are diagonals of kite

Area of kite = (4×2)/2

=8/2

= 4 inches square

3 0

3 years ago

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FIND THE NUMBER OF POSSIBLE OUTCOMES IN SAMPLE SPACE THEN LIST THE POSSIBLE OUTCOMES

hoa [83]

6 outcomes for the die. 24 outcomes for the coins (8 outcomes each).

3 0

4 years ago

Marci went to the state fair with her friends. The total cost of tickets for rides is given by the equation c=2.75t where c is t

snow_tiger [21]

Answer:

c = 55 . . . . (no units for cost are given in your problem statement)

Step-by-step explanation:

"t is the number of tickets" and "Marci bought 20 tickets", so we conclude t=20. Putting that value into the equation and doing the arithmetic, we find ...

c = 2.75·20 = 55

_____

We don't know if this is pennies or pounds, dollars or rupees or pesos or euros. No monetary units are mentioned in the problem statement given here.

7 0

3 years ago

This is pre calculus please help !Describe three ways to determine the measure of segment YZ.

Dmitry [639]

(1) Using trigonometric ratios:
$sin(30) = \frac{YZ}{50}$
$YZ = 25$

(2) Using Pythagoras' Theorem:
$cos(30) = \frac{XY}{50}$
$50cos(30) = XY$
$50^{2} - 50^{2}cos^{2}(30) = YZ^{2}$
$2500 - 2500cos^{2}(30) = YZ^{2}$
$YZ = 25$

(3) Using sine rule:
$\frac{50}{sin(90)} = \frac{YZ}{sin(30)}$
$50 = \frac{YZ}{sin(30)}$
$50sin(30) = YZ$
$YZ = 25$

7 0

3 years ago

Read 2 more answers