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
nata0808 [166]
3 years ago
10

Find the product of -9 and -3. 1. 0-3 2. 27 3. 0-27 4. 3

Mathematics
2 answers:
iogann1982 [59]3 years ago
5 0

Answer:

- 9 × - 3 = 27

Step-by-step explanation:

when we multiply two negative numbers then the sign of the product convert to positive sign

I.e( - )×( - )= (+) product

algol [13]3 years ago
4 0

27 is the answer

gbu...

You might be interested in
The principal of a large high school wants to know if students spend more than 1 hour doing homework per night, on average. To i
MrRissso [65]

Answer:

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

7 0
3 years ago
Pls remember to give your answer in metres
spin [16.1K]
Answer: 500m

Explanation:
If the scale of the drawing is 1:500 then the real playground should be 500:1 which is 500m
5 0
3 years ago
How many 1/8 make a 1/4?
Dmitry_Shevchenko [17]

Answer:

2

Step-by-step explanation:

1/8+1/8= 2/8=1/4

8 0
3 years ago
Read 2 more answers
Paula's house is assessed at $213,000, and her property tax rate is 2.9%. How
NARA [144]

Answer:A

Step-by-step explanation:

She is taxed at a rate of 2.9%, so each year she is taxed 213000 * 2.9% . calculating this, we find that every year, she must pay 6177 in taxes. However, we need the amount in a month, so we divide by 12, to get 6177/12= 514.75, or A

3 0
3 years ago
Read 2 more answers
Describe the transformations of how the graph y=x^2 can be transformed into y= -1/5 (x-4)^2 + 2
Orlov [11]

Answer:

Reflected over the x-axis, vertically shrunk by a factor of 1/5, moved right 4 units and up 2 units.

Step-by-step explanation:

Parent Graph: f(x) = a(bx - h)² + k

<em>a </em>is vertical stretch (a > 1) or shrink (a < 1) and reflection over x-axis

<em>b</em> is horizontal stretch or shrink and reflection over y-axis

<em>h</em> is horizontal movement left (if positive) or right (if negative)

<em>k</em> is vertical movement up (if positive) or down (if negative)

Now that we have our rules, we simply apply it to y = -1/5(x - 4)² + 2

<em>a</em> = -1/5, so reflection over x-axis and vertical shrink of 1/5 (1/5 < 1)

Nothing has changed <em>b</em>, so no horizontal stretch/shrink

<em>h</em> = -4, so horizontal movement right 4 units

<em>k</em> = 2, so vertical movement up 2 units

8 0
3 years ago
Other questions:
  • Construct ∆ABC such that AB = 2.5cm, BC = 6cm and AC = 6.5cm. Measure angle B.
    6·1 answer
  • Is it true that a smaller standard deviation means the data set tended to cluster around the mean?
    10·1 answer
  • Describe the better buy if you plan to buy lots of milk. Support your answer with tables,
    6·1 answer
  • In may a dog weighed 4 3/4 lbs. in may 6 2/8 lbs. how much did the dog weigh? Please an thank you ^^
    13·2 answers
  • True or False:
    12·2 answers
  • Could you help me with my math homework? Pls
    14·1 answer
  • If the perimeter of a square is 5 feet now many Inches long is each side of the square
    12·2 answers
  • Please please please please please help me <br> i will give brainliest
    6·1 answer
  • What’s the scale factor ?
    10·1 answer
  • Help me 20 points!!! 7th-grade math.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!