Ask question

Ask question

All categories

3 years ago

9

Marla did 65 sit ups each day for one week use the distributive property to show an expression you can use to find the total num

ber of sit up

1 answer:

Tema [17]3 years ago

7 0

I hope this will be helpful.

$65*7=65*(1+1+1+1+1+1+1)=65+65+65+65+65+65+65=455$
because she did 65 sit ups each day a week and the week has 7 days.

You might be interested in

El horario y el minutero de un reloj miden respectivamente 0.7 y 1.2cm. Determinar la distancia entre los extremos de dichas man

Fed [463]

Answer:

1.5887 cm

Step-by-step explanation:

If the time is 13:30, The hour pointer will be between the numbers 1 and 2.

Each number of the 12 number clock is separated by 30 degrees, so the hour pointer is at 45 degrees.

The minute pointer is at 30 minutes, so it is in number 6, being therefore at angle 180.

The angle formed by the pointers will be 180 - 45 = 135 degrees.

We can draw a triangle with both pointers and this angle (image attached)

So, we can calculate the distance between the tip of the pointers (let's call it "d") using law of cosines:

d^2 = 0.7^2 + 1.2^2 - 0.7*1.2*cos(135)

d^2 = 0.49 + 1.44 - (-0.5940) = 2.524

d = 1.5887 cm

8 0

4 years ago

What is 12/12 simplified

san4es73 [151]

Answer:

1

Step-by-step explanation:

4 0

3 years ago

Choose the best estimate for the capacity of a water bottle that is 8 inches tall.

labwork [276]

my answer here would be B)

5 0

3 years ago

Read 2 more answers

A real estate agent has 8 master keys to open several new homes. Only 1 master key will open any given house. If 40% of these ho

riadik2000 [5.3K]

Answer:

Step-by-step explanation:

Suppose F represents the value that a room is unlocked.

Then, we can assume that the probability of unlocked homes is:

P(unlocked homes) = P(U)

P(unlocked homes) = 40%

P(unlocked homes) = 0.40

Also, let us represent the value of the locked room with G.

P(locked homes) = P(G)

P(locked homes) = (1 - 0.40)

P(locked homes) = 0.60

Let the probability of selecting a correct key be P(S)

It implies that for the agent to use 3 keys, we have a combination of $^8C_3$ possible ways for the set of keys.

Now; since only one will open the house, then:

P(select correct key) = P(S)

$P(S) = \dfrac{ (^1_1) (^7_2) }{ ^8_3 }$

$P(S) = \dfrac{21}{56}$

P(S) = 0.375

Finally, for the real estate agent to have access to specific homes supposing the agent select three master keys at random prior to the time he left his office, Then:

P(F ∪ (G∩S) = P(F) + P(G∩S)

P(F ∪ (G∩S) = P(F) + P(G) × P(S)

P(F ∪ (G∩S) = 0.40 + (0.60×0.375)

P(F ∪ (G∩S) = 0.40 + 0.225

P(F ∪ (G∩S) =0.625

5 0

3 years ago

The diameter of a circle has endpoints whose coordinates are R(-2, 2) and S(4, 2). The radius of the circle has length _____.

expeople1 [14]

A - 3

Using the coordinates of the diameter, it is possible to figure out the radius.

Using the y axis, you can determine that 4 and -2 total to be six apart, leaving the diameter to be six. Knowing that the radius is half of the diameter, you can easily split the diameter in half to get the radius of 3.

Hope this helps!

4 0

3 years ago

Read 2 more answers