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natima [27]
3 years ago
8

nilai rata2 matematik dari 10 siswa adalah 55 jika digabungkan lagi dengan 5 siswa maka nilai rata2 menjadi 53tentukan nilai rat

a2 dari 5 siswa tersebut
Mathematics
1 answer:
zaharov [31]3 years ago
6 0
Jaidysiwbdhksjquejehwwhhwhejeuejeuueeuw.
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1.) (-6) (-7) =
Jobisdone [24]

\left(-6\right)\left(-7\right)=42

46=2\quad :\quad \mathrm{False}

\left(-9\right)+25=16

\left(13\right)\left(-3\right)=-39

14+3=17

5 0
2 years ago
Read 2 more answers
Does the number line below represent the solution to the inequality x > -2?
sp2606 [1]

Answer:

B  I aplogize if its wrong i haven't done this type of math in a couple years so its foggy

Hope it Helps!

3 0
3 years ago
Helping others makes a person good ​
oksano4ka [1.4K]

Answer:

9 cm.

Step-by-step explanation:

Let the height of the pyramid be h cm, then the height of the cuboid is (15 - h) cm.

Volume of the pyramid:

= 1/3 * h * s^2      where s is the length of a side of the square base.

= hs^2/3 cm^3

Volume of the cuboid:

= s^2(15 - h).

So we have:

hs^2/ 3 = 300.......................(1)

s^2(15 - h) = 600..................(2)

From  equation (1) :

h s^2 = 900

s^2 = 900/h

Now substitute for s^2 in  equation (2) :

(900/h)(15 - h) = 600

Multiply through by h:

900(15 - h) = 600h

13500 - 900h = 600h

1500h = 13500

h = 9 cm (answer).                  brainliest?

3 0
3 years ago
A) Two angles are adjacent if their measures add up to 90°.
slavikrds [6]

Answer:

A) False

B) False

Step-by-step explanation:

A. Two angles whose measures add up to 90° are said to be complementary, while two angles are adjacent when formed beside each other. So, adjacent angles might be complementary or supplementary. Thus, the answer to the first part of the question is false.

B. When two angles share a side, they are said to be adjacent to each other. But supplementary angles add up to 180^{o}. Since adjacent angles might be complementary or supplementary, then the answer to the second part of the question is false.

4 0
3 years ago
A 132-inch board is cut into two pieces. One piece is three times the length of the other. Find the length of the shorter piece.
pav-90 [236]
132=3x+x
132=4x
x=33
The length of the shorter piece is 33 inches
7 0
3 years ago
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