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LiRa [457]
3 years ago
8

If (2x + 3y)^2 = 4 and y = -5, what is the value of 4x^2 + 9y^2?

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0
3181, just a basic substitution problem
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Can someone please help I will give you 30 points and brainliest if the answer is right also no links please
Zolol [24]

Answer:

B: BC ≅EC

Step-by-step explanation:

You know that the two angles starting in C are congruent (they're opposite by vertex C).

Given that the B angle and the E angle are congruent, in order for the two triangles to be congruent by A(ngle)S(ide)A(ngle) you want the side inbetween to be congruent. That is BC and EC. Option B

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leon has a gift card for 100 he spent 6 of it on books describe the change in leons card balance in two different ways
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Step-by-step explanation:

use the negative number -$65 to represent the change in the value of Leon's card

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4 years ago
How would you describe the U.S. dollar if the foreign exchange rate between the U.S. dollar and British pound changed from 1:1 t
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One way to describe the U.S. dollar if the foreign exchange rate between the U.S dollar and British pound changed from 1:1 to 1:07 is the dollar has weakened. The correct answer is C. 
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4 years ago
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I dont know how to complete this
ICE Princess25 [194]

Answer:

The mass would be 6x10^6

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gogolik [260]

Answer:Astrid needs 280 tons of wood

Step-by-step explanation:

Because:

1 ship requires 40 tons of wood=accomodates 300 sailors

We must:

2100, sailors needed to be accomodated

÷

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So:

I ship that requires 40 tons of wood × the 7, groups = 280 tons of wood.

I hope this helps! Im sorry its too complicated.

Simplier:

2100 ÷ 300= 7

40 × 7= 280

6 0
4 years ago
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