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
Natasha2012 [34]
3 years ago
7

The square of 15 is 225. The square of what other number is 225?

Mathematics
2 answers:
Firlakuza [10]3 years ago
7 0

Answer:

-15

Step-by-step explanation:

-15²

= -15×-15

= 225

hope it helps!!

nlexa [21]3 years ago
4 0

Answer:

-15

Step-by-step explanation:

Any number times itself is a positive number. The square of any number will be the same as the square of that number times -1

example:

2^2=4

-2^2=4

You might be interested in
Edgar Anderson earns $300 per week plus 15% commission on all sales over 1,000. if Mr. Anderson's sales for one week are 2,500 w
vredina [299]
Since he only makes commission on sales over $1000, he makes commission on $1500 (we find this by doing 2500-1000.) His commission is 15%, so find 15% of $1500:
.15*1500=225
So we know how makes $225 in commission.

Now we need to add this to his fixed pay to get his total pay:
225+300=525
So his total pay is $525, which is answer 'a' 

Hope I helped, and let me know if you have any questions :)
3 0
3 years ago
You're conducting a significance test for H0 : p = .35, Ha : p < .35. In a sample of size 40, you identify a count of 11 succ
nordsb [41]

Answer: c. –1 and .1587

Step-by-step explanation:

As per given , we have

Null hypothesis : H_0 : p= 0.35

Alternative hypothesis :  H_1 : p< 0.35

Since Alternative hypothesis is left-tailed ,so the test must be a left tailed test .

Z -Test statistic for proportion = z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

, where p= population proportion

\hat{p} = sample proportions

n= Sample size.

Let x be the number of successes.

For n= 40 and x= 11

\hat{p}=\dfrac{x}{n}=\dfrac{11}{40}=0.275

Then ,  z=\dfrac{0.275-0.35}{\sqrt{\dfrac{0.35(1-0.35)}{40}}}

z=\dfrac{-0.075}{\sqrt{0.0056875}}

z=\dfrac{-0.075}{0.075415515645}

z=-0.99449031619\approx-1

By using z-table ,

P-value for left-tailed test = P(z<-1)= 1-P(z<1)    [∵ P(Z<-z)= 1-P(Z<z) ]

= 1-0.8413

=0.1587

Hence, the -score and P-value are  <u>–1 and 0.1587</u> .

So the correct option is c. –1 and .1587

8 0
3 years ago
Mariana solved a linear equation and found that it had an infinite number of solutions. Which could have been the final line of
Fofino [41]

Answer:

0=0

Step-by-step explanation:

Well, the linear equation can be expressed as y=ax+b in the solution of linear equations, there 3 main cases can be concluded as final lines. 1st case - the linear equation has no solution (for example, 0*x=5 has no solutions). 2nd case - the linear equation has one solution (for example 4*x=3 where the only one solution is x=0.75) and the 3rd case - the linear equation has infinite number of solutions (for example 0*x=0). So, in our case (3rd case) the last line can be concluded as 0=0.  

4 0
3 years ago
The sides of a rectangle are scaled to be 1/4 of their original size
Advocard [28]
The answer is in fact D
5 0
3 years ago
Help me find the right angles URGENT !!
sasho [114]

Answer:

q is around 85-89 and S is 91-95

Step-by-step explanation:

sorry i dont have a protractor on me this is the best i can do

8 0
3 years ago
Other questions:
  • Mike poors 12/8 cups of orange juice into serving glasses each glass holds 3/4 cups how many glasses can he fill use a common de
    11·1 answer
  • Simplify the following. (the answer is not 0)
    5·2 answers
  • What multiplication expression represents 7+7+7+7?
    14·2 answers
  • Solve.<br><br> −x2 = 2x − 15
    6·1 answer
  • Mike is overdrawn at the bank by $18. His sister has $23 more than him. How much does
    11·2 answers
  • Can someone please help me with this
    5·1 answer
  • Hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
    5·1 answer
  • Identify the initial condition and the rate of change <br><br> y=−5x+32
    12·2 answers
  • What is the measure of ∠ B?<br> А. 35°<br> В. 125°<br> С. 55°<br> D. 65°
    14·2 answers
  • Define a polynomial that is a difference of squares. How do you know that it is the difference of squares? How is it factored?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!