1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irina1246 [14]
3 years ago
8

A number decreased by 4 equals -12. What is the number? _____

Mathematics
1 answer:
elena55 [62]3 years ago
4 0

x - 4 = -12

I think x = -8 as if you decrease -8 by 4 it will leave us with the answer of -12

x = -8

Hope this helped,

Jon

You might be interested in
Maria got , of her homework done before
enot [183]
Maria finished about 3/5 of it .I think that is the answer but good luck 5 should be the answer
3 0
2 years ago
Find the surface area
horrorfan [7]

Answer:

179

Step-by-step explanation:

I believe this is correct, if not feel free to elt me know and I will fix it. I'm sorry in advance if it is incorrect.

7 0
3 years ago
Read 2 more answers
The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year
puteri [66]

Answer:

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

\sigma=4.1 represent the population standard deviation

n=45 sample size  

\mu_o =12 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:  

Null hypothesis:\mu \geq 10  

Alternative hypothesis:\mu < 10  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

8 0
3 years ago
Find the area of the circle. Round to the nearest tenth.
Viktor [21]

Answer:

28.27

Step-by-step explanation:

Area=  pi x radius squared

Radius is 1/2 the diameter which in this case is 6 ft

So, pi x 3 squared (9)

= 28.27

3 0
3 years ago
Read 2 more answers
A dessert recipe calls for 2.5 cups of milk and makes 5 servings how many cups of milk are needed for 8 servings
melisa1 [442]

Answer:

4 cups

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Is -12, -10, -8, and -6 linear, exponential or neither
    15·2 answers
  • Pablo makes $23 each day raking leaves. About how much money does Pablo make in one week?
    10·1 answer
  • If a 10,000 gallon swimming pool requires 4 ounces of a chemical, then
    10·1 answer
  • A rectangular parking area measuring 6000 ft squared is to be enclosed on three sides using​ chain-link fencing that costs ​$5.5
    6·1 answer
  • Subtract:
    9·2 answers
  • Arnold began working at a coffee shop on April first. Ms.Ware, his new boss, told Arnold he would earn $2,500 each month if he w
    15·2 answers
  • Five times the difference of a number and 3 is 15
    5·1 answer
  • Y + 2 = -3(x - 4). What is the point given?
    9·1 answer
  • 0.000009 in scientific notation.
    5·2 answers
  • Can some one help me do this question <br> just give me e and f
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!