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andrey2020 [161]

2 years ago

13

These marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two blue marbles if the

first one is placed back in

1 answer:

Bess [88]2 years ago

3 0

Answer:

2/9

Step-by-step explanation:

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Zena saves $5 for every $30 she earns. Which of these describes the rate at which Zena saves?

garri49 [273]

Answer:

I think it is c because yah

6 0

2 years ago

Which statement is true about the terms of the linear expression 13-4x in standard form?

AysviL [449]

Answer:

B) b=13

Step-by-step explanation:

13-4x is the same as -4x+13

8 0

2 years ago

Find the size of each of 66 payments made at the end of each year into a 88% rate sinking fund which produces $36000 at the en

Assoli18 [71]

Answer: $7787.99

Step-by-step explanation:

We know that the formula to find the periodic payment on an annuity is given by :-

$P=\dfrac{r(PV)}{1-(1+r)^{-n}}$ , where PV is the present value , r is the rate of interest ( in decimal ) and n is the number of payments.

Given : Present value : $36000

Rate of interest = 8%=0.08

Time period = 6 years

Then , the periodic payment will be :-

$P=\dfrac{(0.08)(36000)}{1-(1+0.08)^{-6}}\\\\\Rightarrow\ P=\dfrac{2880}{0.3698}\\\\\Rightarrow\ P=\$7787.99$

Hence, the payment size is $7787.99.

8 0

2 years ago

2x + 5 > 9 and 5x less than or equal to 30

tatuchka [14]

2x + 5 > 9
so 2x > 9-5
2x > 4
x > 2

5x <= 30
x <= 6

answer is 2 < x <= 6

or interval notation it is (2, 6]

6 0

3 years ago

a vegetarian sandwich is in the aproximate shape of a cone. the height of the sandwich is 6 inches and the base diameter is 3.5

Olenka [21]

Answer: 19.2inches³

Step-by-step explanation:

The volume of a cone is calculated as:

= 1/3πr²h

where,

π = 3.14

r = radius = diameter/2 = 3.5/2 = 1.75

h = height = 6

Volume = 1/3πr²h

= 1/3 × 3.14 × 1.75² × 6

= 19.2325

= 19.2inches³

Therefore, the volume of the cone-shaped sandwich is 19.2inches³.

5 0

2 years ago