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3 years ago

Andrew had 30 dollars to spend on 3 gifts. He spent 8

Mathematics

1 answer:

amm18123 years ago

8 0

Andrew has 17 dollars left for gift c

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2. State the main reasons why farmers are able to grow three different crops in a year in

nlexa [21]

Answer:

abundance of water and suitable climatic conditio n is the main reasons .

4 0

3 years ago

Evaluate the function: f(x)=x2−4x, find f(−3)

VikaD [51]

Answer:

f(-3) = 21

Step-by-step explanation:

To solve this, you can replace all x's with -3 and then solve to find the answer.

f(x) = x^2 - 4x

f(-3) = -3^2 - 4(-3)

f(-3) = 9 - (-12)

f(-3) = 21

I hope this helps!

3 0

3 years ago

Which of the following are independent pairs of events? Check all that apply.

Mila [183]

Answer:

A,D and E

Step-by-step explanation:

Intuitively speaking two events are independents when the occurrence of one event (A) does not exert influence over the event (B)

Symbolic speaking in terms of sets

P(A∩B)= P(A) * P(B)

Examining each alternative

A. Flipping two coins and having one show a head and the other show a head

Independent. Each flipping coin does not exert any influence on the other

B. Being sneezed on and catching a cold

Dependent. This sequence of events expresses cause consequences effects.

C. When rolling a pair of dice, getting a total of 6 and having one die show a 3

Dependent

Under these conditions, the second event is dependent since all we need is a sum of six, having the first dice showing three. The second one has to show three. So it does exert influence under the result.

D. Rolling a 4 on one die and rolling a 2 on another die

Independent. To get a 4 does not exert any influence on getting a 2 on another dice.

E. Seeing clouds and winning the lottery

Independent.

There is no influence seeing clouds and winning the lottery.

4 0

3 years ago

Read 3 more answers

Find the area of a circle givin the diameter of 12. Use 3.14 for pi.

valina [46]

Answer:

113.04 units^2

Step-by-step explanation:

The area of a circle can be found using:

$a=\pi r^{2}$

First, we need to find the radius, since we have the diameter.

Radius

The radius is half the diameter, or

r=d/2

We know the diameter is 12, so we can substitute that in

r=12/2 Divide

r=6

Area

Now we know the radius and can substitute it into the area formula

$a=\pi r^{2}$

$a=\pi 6^2$ Solve the exponent

$a=\pi 36$

Substitute 3.14 in for pi

a=3.14*36 Multiply

a=113.04

We aren't given a specific unit, so we can say the area is

113.04 units^2

8 0

3 years ago

How many fluid ounces are there in 5 quarts?

kicyunya [14]

Answer:

160

Step-by-step explanation:

So there are 32 ounces in a quart.

32 * 5 = 160

8 0

3 years ago