Solve -3.5 x 0.2 = -0.7 -7.0 -33

Mathematics

2 answers:

Rom4ik [11]3 years ago

5 0

Answer= -40

-3.5 x 0.2 = -0.7 - 7.0 - 33
-0.7= -40.7
-40.7 + 0.7 = -40
-40

I hope this helps!

charle [14.2K]3 years ago

3 0

Answer:

-3.5 x 0.2 = -0.7 - 7.0 -33

-0.7 = -40.7

= -40

Hope this helps.

You might be interested in

Read the sentence below about the Chicago fire of 1871. The city of Chicago was restored quickly after the fire. Which revision

ICE Princess25 [194]

Answer:

A:The city of Chicago was restored after the fire of 1871, as many structures were rebuilt at a rapid pace.

Step-by-step explanation: credit to beverlymichelle in the comments

6 0

3 years ago

Suppose that you were not given the sample mean and sample standard deviation and instead you were given a list of data for the

Troyanec [42]

Answer:

So, the sample mean is 31.3.

So, the sample standard deviation is 6.98.

Step-by-step explanation:

We have a list of data for the speeds (in miles per hour) of the 20 vehicles. So, N=20.

We calculate the sample mean :

$\mu=\frac{19 +19 +22 +24 +25 +27 +28+ 37 +35 +30+ 37+ 36+ 39+ 40+ 43+ 30+ 31+ 36+ 33+ 35}{20}\\\\\mu=\frac{626}{20}\\\\\mu=31.3$

So, the sample mean is 31.3.

We use the formula for a sample standard deviation:

$\sigma=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\mu)^2}$

Now, we calculate the sum

$\sum_{i=1}^{20}(x_i-31.3)^2=(19-31.3)^2+(19-31.3)^2+(22-31.3)^2+(24-31.3)^2+(25-31.3)^2+(27-31.3)^2+(28-31.3)^2+(37-31.3)^2+(35-31.3)^2+(30-31.3)^2+(37-31.3)^2+(36-31.3)^2+(39-31.3)^2+(40-31.3)^2+(43-31.3)^2+(30-31.3)^2+(31-31.3)^2+(36-31.3)^2+(33-31.3)^2+(35-31.3)^2\\\\\sum_{i=1}^{20}(x_i-31.3})^2=926.2\\$