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joja [24]
3 years ago
7

HURRY 25 POINTS mathssas

Mathematics
1 answer:
polet [3.4K]3 years ago
8 0

Answer:

6.6875 correct to 4 s.f

Step-by-step explanation:

T=m/f

T=120/25.6

T=6.6875 correct to 4 s.f

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Please help i will mark brainly
OverLord2011 [107]

The answer:

Is d  have a good day

5 0
3 years ago
The diagram shows a 5 cm x 5 cm x 5 cm cube.
Nitella [24]

Answer:

8.7 cm

Step-by-step explanation:

The question is a 2-two-step Pythagoras theorem. (c^2 = a^2 + b^2)

Consider as such, If I were to draw a diagonal line along the base of the cube what is the length of the diagonal line. To find out that we use the theorem. We can substitute a for 5 and b for 5 as well. So

a^2 +b^2 = c^2

5^2 + 5^2 = c^2

25 + 25 = c^2

√50 = c

Then since the line side of the cube is on a 3d angle we need to do the same process again but now using the imaginary diagonal line that we just calculated and the height (5).

a^2 +b^2 = c^2

√50^2 + 5^2 = c^2

50 + 25 = c^2

√75 = c

c = 8.6602...

<em>when rounded to 1 d.p.</em>

c = 8.7

Line AB is 8.7 cm long.

7 0
3 years ago
Help me solve this problem please
allochka39001 [22]

Answer:

Step-by-step explanation:

4^2+x^2 = 15^2

x^2 = 15^2 - 4^2 = 225-16 = 209

x=sqrt(209)

x = 14.46

6 0
3 years ago
What's the simplified form of 2x + 3 – X + 5?<br> A.X-2<br> B.X-8<br> C. x+8<br> D. 3x + 8
allochka39001 [22]

Answer:

C

Step-by-step explanation:

Group like terms

= 2x - x +3 +5

Add the similar 'elements'

= x + 3 + 5

Add the numbers

3 + 5 = 8 + x

= x+8

8 0
3 years ago
Name the postulate or theorem, 50 points please help!
max2010maxim [7]
Hi! 

When you use postulates and theorems, you need to make sure to only use the given information that you know. Look for the given statements, and congruence marks on the figure. Those are also considered given. 

By looking, you are given an angle and a side. The side comes first. SU=TV.

So, that makes it so Side-Angle-Side would be the best option. 

I hope this helps! 


7 0
3 years ago
Read 2 more answers
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