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3 years ago

Help me with this, answer any question you like

Mathematics

1 answer:

katrin2010 [14]3 years ago

4 0

The answers are... For the first one Question 1. the answer would be
2x³+2x²-2x

Question 2 the answer is: x²-3x-2

Question 3 the answer is: 2x+2

Question 4 the answer is: x+7

Question 5 the answer is: −15x²+66x−63

Hopes this helps! :)

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What is the total surface area of the square pyramid?

NISA [10]

Answer:

380

Step-by-step explanation:

The surface of a square pyramid is made up of a single square in the center, and four triangles on the sides. The square's area is 10*10=100, while the area of each of the triangles is 10*14/2=70. Multiplying this by the 4 triangles, you get 280. Adding them together, you get a total of 380 square meters. Hope this helps!

6 0

3 years ago

In a club there is 13 women and 8 men. A committee of 9 women and 4 men is to be chosen. How many different ways are there to se

sammy [17]

Answer:

The total number of ways to select 9 women and 4 men for the committee is 50,050.

Step-by-step explanation:

The club has 13 female members and 8 male members.

The committee to be formed must have 9 female members and 4 male members.

The possible number of ways to select 9 female from 13 females is:

$n(F)={13\choose 9}=\frac{13!}{9!(13-9)!}=715$

The possible number of ways to select 4 male from 8 males is:

$n(M)={8\choose 4}=\frac{8!}{4!(8-4)!}=70$

Compute the possible total number of ways to select 9 women and 4 men for the committee as follows:

Total number of ways to select 9 women and 4 men = n (F) × n (M)

$=715\times70\\=50050$

Thus, the total number of ways to select 9 women and 4 men for the committee is 50,050.

3 0

3 years ago

-(7-9)z-6z=8(-6+2) solve for z

Sergeeva-Olga [200]

Answer:

(-(7-9))(z)-6z= 8(-6+2)

Simplify

-(-2)(z) -6z =8(-6+2)

Multiply 8*-6 and 8*2

2z -6z= -48+16

Combine like terms

2z+-6z =-32

-4z=-32

Divide both sides by -4

z=8

Step-by-step explanation:

5 0

3 years ago

The distance between points

nasty-shy [4]

Answer: B. False
Distance between points is square root of (x1 - x2) + (y1 - y2).

Hope it helped!

8 0

4 years ago

A conjecture and the flowchart proof used to prove the conjecture are shown.

posledela

Answer:

1. Definition of parallelogram

Step-by-step explanation:

1. Definition of parallelogram

2. Angle Congruence Postulate

3. m<2 + m<3 =180

4. m<1 + m<3 =180

5. Definition of supplementary

7 0

4 years ago