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mario62 [17]
3 years ago
15

Alejandro looked at his first three science test for the quarter.His scores are represented i different ways

Mathematics
1 answer:
Darya [45]3 years ago
5 0

Answer:Test one is 84% correct

Test two has a total of 20 questions

Test three he has 28 answers right


Step-by-step explanation:


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Shalnov [3]

Answer:

180° = x + (2x -15)

180°=3x-15

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65+ y= 180°

y = 115°

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Evaluate "four dollars less than the cost<br> of a sweater" if a sweater costs $22<br> a<br> a
AleksAgata [21]
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The question says to evaluate the cost of four dollars less than the cost of a sweater.

To do this, what we have to do is to create a mathematical equation of it.

Less than always insinuates that we are to subtract, and as such, we are going to subtract four dollars from the cost of the sweater to get our final answer.

Four dollars less than the cost of a sweater that costs $22 is

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2 years ago
Factorize completely the expression(h+2k)²+4k²-h²​
julsineya [31]

The expression factorized completely is (h +2k)[(h+2k) + (2k-h)]

From the question,

We are to factorize the expression (h+2k)²+4k²-h²​ completely

The expression can be factorized as shown below

(h+2k)²+4k²-h²​ becomes

(h+2k)² + 2²k²-h²​

(h+2k)² + (2k)²-h²​

Using difference of two squares

The expression (2k)²-h²​ = (2k+h)(2k-h)

Then,

(h+2k)² + (2k)²-h²​ becomes

(h+2k)² + (2k +h)(2k-h)

This can be written as

(h+2k)² + (h +2k)(2k-h)

Now,

Factorizing, we get

(h +2k)[(h+2k) + (2k-h)]

Hence, the expression factorized completely is (h +2k)[(h+2k) + (2k-h)]

Learn more here:brainly.com/question/12486387

5 0
3 years ago
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Answer:

32y

Step-by-step explanation:

0xy=0

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So, 0+32y = 32 y

7 0
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valentinak56 [21]

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Step-by-step explanation:

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