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3 years ago

9

Pls help pls its rlly hard

2 answers:

kakasveta [241]3 years ago

8 0

9514 1404 393

Answer:

(d) √25

Step-by-step explanation:

The square root of an integer is a rational number if it is the root of a perfect square. From your knowledge of multiplication tables, you know that 25 = 5×5 is a perfect square.

√25 = 5 is a rational number

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<em>Additional comment</em>

It can be useful to memorize the squares of integers up to about 20. You probably already know the first 10 or 12 from your memorization of multiplication tables.

1² = 1, 2² = 4, 3² = 9, 4² = 16, 5² = 25, 6² = 36, 7² = 49, 8² = 64, 9² = 81,

10² = 100, 11² = 121, 12² = 144, 13² = 169, 14² = 196, 15² = 225, 16² = 256,

17² = 289, 18² = 324, 19² = 361, 20² = 400

lora16 [44]3 years ago

5 0

Answer:

23

Step-by-step explanation:

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Joe brought g gasoline for 2.75 per gallon and c cans of oil for 3.35 per can.

KatRina [158]

Answer:

Step-by-step explanation:

Let T represent the total amount spent.

The word and implies addition so the equation would be T= 2.75g+3.35c .

Now plug in the g and c values given in part b

So T= 2.75(5.8)+3.35(6)

Next simplify the expression

This is what T or the total Spent equals

3 0

3 years ago

Indicate a general rule for the nth term of the sequence a1 = 2 and r = √3.

pantera1 [17]

It is given in the question that,

$a_{1} = 2, r = \sqrt 3$

Since we have the value of r given, so we have to use the formula to find the nth term of the geometric progression, which is

$a_{n} = a(r)^{n-1}$

Substituting the values of a and r, we will get

$a_{n} = 2( \sqrt 3)^{n-1}$

So the correct option is the third option .

3 0

3 years ago

HELP RIGHT AWAY!!!PLEASE EXPLAIN HOW TO SOLVE THE PROBLEM

kumpel [21]

Answer:

264

Step-by-step explanation:

Volume = Area of cross section x height

Area of cross section = 1/2 bh

1/2 (8x6) = 24

24 x 11 = 264 yd^3

8 0

3 years ago

A college basketball coach has 12 players on his team. eight players are receiving scholarships, and four are not. the coach dec

EleoNora [17]

Solution: The given problem is a binomial distribution.

The probability that a team member receives a scholarship is $\frac{8}{12} = 0.67$

Therefore, the given problem follows binomial with n = 5 and p = 0.6667

Now the probability that 4 of 5 players selected are on scholarship is:

$P(x=4) = \binom{5}{4} \times 0.6667^{4} (1-0.6667)^{5-4}$

$=5 \times 0.1976 \times 0.3333$

$=0.329$

Therefore, the probability that 4 of 5 players selected are on scholarship is 0.329

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3 years ago

A Parachutes speed during a freefall reaches 108 mph. What is the speed in feet per second? At this speed, how many feet with a

Slav-nsk [51]

The speed would be 158.4fps and the parachutist would fall 2,376 feet during 15 seconds.

7 0

3 years ago