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3 years ago

Is 2.5 greater or less than 1,950

Mathematics

1 answer:

OverLord2011 [107]3 years ago

8 0

Answer:

2.5 is less than 1,950.

Step-by-step explanation:

The decimal place is at the end of 1,950.

The decimal place is in the middle of the 2 and the 5.

Since 2.5 decimal place is closer, that means 2.5 has a lower value than 1,950.0.

You can subtract both values.

1,950 - 2.5 = 1,947.50, if it’s greater than 0, it means it has a lower value.

0 < 1,947.50.

Therefore, 2.5 < 1,950

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Given: △ACM, m∠C=90°, CP ⊥ AM . AC:CM=3:4, MP-AP=1. Find AM.

lana [24]

Answer:

$AM=\frac{25}{7}$

Step-by-step explanation:

It is given that AC:CM = 3:4.

Therefore, let AC = 3k and CM = 4k

It is given that Δ ACM is right angled.

Therefore,

$AM^{2} =AC^{2} +CM^{2}$

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AM = 5k

But, AM = MP + AP

Therefore, MP + AP = 5k --- (1)

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Multiply (1) and (2), we get.

(MP + AP)(MP - AP) = 5k × 1 = 5k

$MP^{2} -AP^{2} =5k$

Add and subtract $CP^{2}$ on the left side.

$MP^{2} + CP^{2} - CP^{2} -AP^{2} =5k$

$(MP^{2} + CP^{2}) - (CP^{2} +AP^{2}) =5k$ --- (3)

But, since CP ⊥ AM, Δ CMP and Δ CAP are right triangles. Therefore,

$MP^{2} +CP^{2} =CM^{2}$ and

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Now, (3) becomes,

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2 years ago

I need help understanding how to find the answer for 5+2x=8x-4

lbvjy [14]

Try to get all your like terms to the same side. for example get all your x values to the left side and all your number values to the right side.

5 + 2x = 8x - 4
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x = -9/-6
x = 1.5 or 1 1/2

hope this helps and have a great day! :)

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