All categories

2 years ago

I don’t understand help pls

Mathematics

1 answer:

UNO [17]2 years ago

6 0

The answer is 6.4 I hoped this helped

You might be interested in

3456.8 round the number below to the nearest whole number one place

fiasKO [112]

Answer:

I do not understand this question

4 0

2 years ago

Suppose a radioactive substance has a half-life of 1000 years. What fraction will be left after 1000 years?

salantis [7]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

The half life is the amount of time it takes a substance to decay to half of its original amount.

Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.

So, the fraction that will be left after 1000 years is $\frac{1}{2}$

3 0

2 years ago

Read 2 more answers

Factor by grouping : xy + 6y - 2x - 12 (if you don't know the answer don't comment)

alexira [117]

<h3> Hey There today we will solve your problem</h3>

First we will factor out $y$ from $xy+6y$ which gives us $y(x+6)$

Next we will factor out $-2$ from $-2x-12$ which gives us $-2(x+6)$

This gives us the equation

$y(x+6)-2(x+6)$

then factor out the common term $x+6$ <em> and we get</em>

<em /> $\left(x+6\right)\left(y-2\right)$

6 0

2 years ago

A right rectangular prism is shown. What shape best describes the cross section cut perpendicular to the base of a right rectang

alisha [4.7K]

Since the cross section is constrained to be perpendicular to the base, the shape of it is constrained to be a ...
Rectangle

_____
That rectangle may be a square, but is not required to be.

4 0

2 years ago

Read 2 more answers

How do you solve the system of linear equations for this problem: (2.1x+4.2y=14.7) & (-5.7x-1.9y=-11.4)

Alenkinab [10]

2.1x + 4.2y = 14.7 is the same as x + 2y = 7 (divide both sides by 2.1)
-5.7x-1.9y=-11.4 is the same as 3x + y = 6 (divide both sides by -1.9)

Rearrange the first equation to get x = 7 - 2y and substitute into the second equation, 3(7 - 2y) + y = 6, 21 - 6y + y = 6, 5y = 15, y = 3

Substitute y = 3 into the first equation x + 2(3) = 7, x = 1

x = 1 and y = 3

5 0

3 years ago