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3 years ago

Help!!! i dont know what im doing!!

Mathematics

1 answer:

Sati [7]3 years ago

6 0

Answer:

B is incorrect because you could set them equal to each other

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Please Help 7th grade math

Allisa [31]

The signs of the numbers in the problem matter because if a number is negative in the equation than you're answer could be negative. ex. -3/9= -3 but if the negative sign wasn't there than the answer would be wrong bc the answer would be positive.

hope thats what you need hope it helps.

6 0

4 years ago

PLEASE HELP 25 POINTS!

liubo4ka [24]

Answer:

The common ratio r = 2.

Step-by-step explanation:

Now s2 = a1r and s4 = a1r^3 where a1 = first term and r = common ratio so

s4 / s2 = a1r^3 / a1r = r^2 = 32/8

r^2 = 4

r = 2.

6 0

3 years ago

Read 2 more answers

At a little known vacation spot taxi fares are a bargain. A 49 mile taxi ride takes 56 minutes and cost $39.20. You want to find

artcher [175]

And 49 mile costs $39.20
So 1 mile costs $0.80
$0.8 x 34 = $27.20

8 0

3 years ago

La C = (F - 32).<br> F =

dmitriy555 [2]

C = (F - 32) then F = C + 32

8 0

4 years ago

The diagram shows 5cm×5cm×5cm cube calculate the length of the diagonal ab

mario62 [17]

Answer:

AB = $5\sqrt{3}$ cm

Step-by-step explanation:

As we can see from the figure, BCDE is a square with each corner equal to 90°.

So that, BDE is a right triangle with corner BED equal to 90°

As BDE is a right triangle, according to Pythagoras theorem, we have:

$BD^{2} = BE^{2} +ED^{2} = 5^{2} + 5^{2} = 25 + 25 = 50$ cm

As the diagram s the cube, so that it can be seen that AD is perpendicular to the surface BCDE

=> AD is perpendicular to BD

=> ADB is the right triangle with corner ADB equal to 90°.

As ADB is the right triangle, ccording to Pythagoras theorem, we have:

$AB^{2} =AD^{2} + BD^{2} = 5^{2} +50 = 25 +50 = 75$ cm

=> $AB = \sqrt{75} = 5\sqrt{3}$ cm

Conclusion: AB = $5\sqrt{3}$ cm

4 0

3 years ago