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3 years ago

Solve for x: 9+9x>18

Mathematics

1 answer:

Marysya12 [62]3 years ago

4 0

Answer: x>1

Step-by-step explanation:

First we need to subtract 9 on each side to isolate the variable. We’ll end up with this equation

9x > 9

Then divide by 9 on each side to solve for x

X>1

That’s your answer

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Suppose that 7 female and 5 male applicants have been successfully screened for 5 positions. If the 5 positions are filled at ra

katen-ka-za [31]

Answer:

(a) 350

(b) 175

(d) 196

Step-by-step explanation:

Number of females = 7

Number of males = 5

Total ways of selecting r items from n items is

$^nC_r=\dfrac{n!}{r!(n-r)!}$

(a)

Total ways of selecting 3 females and 2 males.

$\text{Total ways}=^7C_3\times ^5C_2$

$\text{Total ways}=\dfrac{7!}{3!(7-3)!}\times \dfrac{5!}{2!(5-2)!}$

$\text{Total ways}=35\times 10$

$\text{Total ways}=350$

(b)

Total ways of selecting 4 females and 1 male.

$\text{Total ways}=^7C_4\times ^5C_1$

$\text{Total ways}=32\times 5$

$\text{Total ways}=175$

(c)

Total ways of selecting 5 females.

$\text{Total ways}=^7C_5\times ^5C_0$

$\text{Total ways}=21\times 1$

$\text{Total ways}=21$

(d)

Total ways of selecting at least 4 females.

Total ways = 4 females + 5 females

$\text{Total ways}=175+21$

$\text{Total ways}=196$

6 0

3 years ago

Expand and simply x(2x + 3) + 5( x - 7)

zalisa [80]

Answer:

2x² + 8x - 35

Step-by-step explanation:

x(2x + 3) + 5(x - 7) ← distribute both parenthesis

= 2x² + 3x + 5x - 35 ← collect like terms

= 2x² + 8x - 35

6 0

2 years ago

Multiply the polynomial (x-5)(x^2+4x-2)

madreJ [45]

Answer:

x^3-x^2-22x+10

Step-by-step explanation:

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3 years ago

Which value is closets to 8 11/20 A)8 B)8 1/2 C)8 3/4 D) 9

Alona [7]

I would say the answer is B. 8 1/2 because 11/20 is close to 10/20 which would be the same as 1/2

4 0

3 years ago

Anyone know how to do this?¿?¿

vichka [17]

0.65 x 40 = 26
So the answer is 26 pounds.

7 0

3 years ago

Read 2 more answers