All categories

3 years ago

7x3 how much???????????????????????????????????????

Mathematics

2 answers:

elena55 [62]3 years ago

8 0

7 x 3= 21 you can also use a calculator to help you

kodGreya [7K]3 years ago

7 0

Answer: 21 is the answer

You might be interested in

3 1/2 × 4 2/3 equal need help for the break down

dangina [55]

Turn them into mixed fractions first:
3 1/2 = 7/2 and 4 2/3 = 14/3

Then multiply the fractions:
7/2 x 14/3
Make sure you multiply the denominators together and multiply the numerators together, straight across.
7/2 x 14/3 = 98/6

Now simplify!
98/6 = 16 2/6 = 16 1/3

That’s your answer, 16 1/3

6 0

3 years ago

Hector made a batch of pancakes first guest you 6 cups of milk three eggs and 9 cups of pancake mix. What is the constant of pus

Nitella [24]

Answer:

3 : 2

Step-by-step explanation:

The ratio of pancake mix to milk is ...

pancake mix : milk = (9 cups) : (6 cups) = 9 : 6 = 3 : 2

6 0

4 years ago

Scientific hypothesis can become a theory how

zalisa [80]

Answer:

Scientific hypothesis can be a theory when yiu have enough prove to back it up and when it is fully supported by other scientists

3 0

4 years ago

Olive buys indie music online. Each song costs $2 plus a $5 fee for using the artist's site. She has no more than $40 to spend.

mina [271]

First, set a variable.

Let x = the number of songs bought.

Each song costs 2 dollars. So, we have our first term: 2x.
And there is a fee of 5 dollars for using the website.

2x + 5

And she can't spend any more than 40 dollars. Which means she can spend 40 and under.

So, 2x + 5 ≤ 40 is the answer.

7 0

3 years ago

Q4<br> Help pleaseeeeeeee

emmasim [6.3K]

a. The general equation for a circle centered at $(a,b)$ with radius $r$ is

$(x-a)^2+(y-b)^2=r^2$

The described circle has equation

$(x+3)^2+(y+2)^2=r^2$

We know the circle passes through the origin. This means that the equation above holds for $x=0$ and $y=0$ . The distance between any point on the circle and its center is the radius, so we can use this fact to determine $r$ :

$(0+3)^2+(0+2)^2=r^2\implies 9+4=13=r^2\implies r=\sqrt{13}$

So the circle's equation is

$(x+3)^2+(y+2)^2=(\sqrt{13})^2=13$

b. If the distance between point B and the center is less than $\sqrt{13}$ , then B lies inside the circle. If the distance is greater than $\sqrt{13}$ , it falls outside the circle. Otherwise, if the distance is exactly $\sqrt{13}$ , then B lies on the circle.

The distance from B to the center is

$\sqrt{(-1+3)^2+(3+2)^2}=\sqrt{4+25}=\sqrt{29}$

$29>13$ , so $\sqrt{29}>\sqrt{13}$ , which means B falls outside the circle.

5 0

3 years ago