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hjlf
3 years ago
9

True or False 5/2 + (- 2.5) is negative.

Mathematics
2 answers:
uranmaximum [27]3 years ago
7 0
This is false, it is not negative because the answer is 0.
lesya692 [45]3 years ago
5 0

Answer:

False

Step-by-step explanation:

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Allen started his homework at 8:10 p.M. And worked for 45 minutes. Then he phoned a friend and talked for 20 minutes He went to
Luba_88 [7]

Answer:

Allen go to bed at <u>9:15 p.m</u>.

Step-by-step explanation:

Given:

Allen started his homework at 8:10 p.M. And worked for 45 minutes. Then he phoned a friend and talked for 20 minutes. He went to bed when he finished the call.

Now, to find the time Allen go to bed.

Allen started his homework at 8:10 p.m.

And worked for 45 minutes.

So, to get the time when he finished homework is by adding 45 minutes and the time when he started homework:

8.10+45

=8.55\ p.m.

Thus, he finished his homework at 8:55 p.m.

Then he phoned a friend and talked for 20 minutes and went to bed when he finished the call.

<em>As, 1 hour = 60 minutes.</em>

Now, to get the time when he go to bed by adding 20 minutes and the time when he finished homework:

8.55+20=9.15\ p.m.

Therefore, Allen go to bed at 9:15 p.m.

7 0
2 years ago
N order to write an expression like (5x + 4)3 in expanded form, it helps to look at (5x + 4) as just one number, n.
Vladimir79 [104]

The expression (5x + 4)^3 in expanded form is 125 x3 + 300 x2 + 240 x + 64.  The expression will have also a root of x = -4/5. This is the form of trinomial expansion and can be  solve by multiplying the the term 3 times.

6 0
3 years ago
A gray-scale digital camera with 1,000,000 pixels takes a picture (the picture is made of 1,000,000 parts and each part has a ce
Novay_Z [31]
Let X be a random variable representing the mean gray scale of each pixel.
P(110 ≤ X ≤ 140) = P(X < 140) - P(X < 110) = P(z < (140 - 125)/15) - P(z < (110 - 125)/15) = P(z < 1) - P(z < -1) = P(z < 1) - [1 - P(z < 1)] = 2P(z < 1) - 1 = 2(0.84134) - 1 = 1.68268 - 1 = 0.68268

Number of pixels that have gray scale of between 110 and 140 = 0.68268 x 1000000 = 682680 = approximately 680,000
3 0
3 years ago
Evaluate | -65 | = ?
il63 [147K]

Answer:

65

Step-by-step explanation:

It's the absolute value of -65

Hope this helped, Have a Wonderful Day!!

6 0
2 years ago
in a school there are 3 girls for every 4 boys. if there are 196 boys,how many students are there together​
lakkis [162]

Answer:

3×196÷4= 147

147 of girls + 196 of boys

=343

6 0
3 years ago
Read 2 more answers
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