All categories

2 years ago

Can you help answer these:

Mathematics

2 answers:

Papessa [141]2 years ago

8 0

Step-by-step explanation:

(-3)*(1+3) = -9
(-3)*(-3) = 9
(+20)(+5) =100
(+21)(-3) = -63
(-2)*(+3)*(-4) = 24

mojhsa [17]2 years ago

6 0

Answer:

1) -3 x 3=-9

2) -3x-3=9

3)20x5=100

4) 21x-3=-63

5) -2x3x-4=24

note: negative x positive= negative

negative x negative=positive

positive x positive= positive

Step-by-step explanation:

hope this is helpful

You might be interested in

Imagine that the average weight of a total of 500 girls in a high school is 35kg. Tom randomly sampled 10 girls and measured the

Naddik [55]

Answer:

The sample 2 has a lowest value of SE corresponding to the least sample variability.

Step-by-step explanation:

As the value of the sample means and standard deviations are not given, as similar question is found online from which the values of data is follows

The data is as attached with the solution. From this data

Sample 1 has a mean of 34 and a SE of 5

Sample 2 has a mean of 30 and a SE of 2

Sample 3 has a mean of 26 and a SE of 3

Sample 4 has a mean of 38 and a SE of 5

As per the measure of the sample variability is linked with the value of SE or standard error. Which is lowest in the case of sample 2 .

So the sample 2 has a lowest value of SE corresponding to the least sample variability.

4 0

3 years ago

3/100 mile in 3 seconds. how far in 1 minute

dlinn [17]

Answer:

60/100

Step-by-step explanation:

Hope it helped answer is 60/100 because one min equals 60 seconds so 60/100 is your answer brainiest plz

7 0

2 years ago

((12+5)+20÷4))+4<br>order of operations

likoan [24]

((12+5)+20÷4))+4

first is parentheses inside out

12+5 = 17

((17)+20÷4))+4

now divide inside the parenthesis

(17+5)+4

next parentheses

22+4

Answer: 26

5 0

2 years ago

Read 2 more answers

Find the Missing demension of each triangle described:

Ganezh [65]

4 and then we will have a good day to sleep at church and ok then I just woke you up I love wieieuueueiewiowowo ohhh

7 0

2 years ago

In fig if x+y=w+z then prove that AOB is a line.

frez [133]

Answer:

As Given, x+y=w+z

To Prove: AOB is a line or x+y=180

∘

(linear pair.)

According to the question,

x+y+w+z=360

∘

∣ Angles around a point.

(x+y)+(w+z)=360

∘

(x+y)+(x+y)=360

∘

∣ Given x+y=w+z

2(x+y)=360

∘

(x+y)=180

∘

Hence, x+y makes a linear pair.

Therefore, AOB is a straight line

4 0

2 years ago