3 years ago

I need to simplify -3ab(a-5b)+2(a-4)+5

Mathematics

1 answer:

Iteru [2.4K]3 years ago

6 0

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Can you help me with this. Find the surface area

ruslelena [56]

Answer:

2370 cm²

Step-by-step explanation:

2(32·15+15·15+15·32) = 2370

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3 years ago

Ok sorry let me put it this way.... Millie has 15 counters Tom has 8 counters how would you do a Comparison? On how much each co

hodyreva [135]

Yes because 15+8=23 divide that into a number that could each child have and just make it into equal amounts

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3 years ago

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A, B & C form a triangle where Z

malfutka [58]

Answer:

BC≈8,38

Step-by-step explanation:

AB=a

BC=c

CA=b

a²+b²=c²

3.3²+7.7²=c²

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2 years ago

What is d if 3= -6/d

Over [174]

Answer:

d = -2

Step-by-step explanation:

d( 3 ) = ( -6 / d )d

3d = -6

(3d)/3 = (-6)/3

d = -2

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3 years ago

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a student answered 86 problems on a test correctly and received a grade 98% how many problems were on the test if all the proble

maxonik [38]

98% Grade was achieved, so 0.98 of the questions were answered correctly.

n = number of problems

$\frac{86}{n} = 0.98 \\ \\ n = \frac{86}{0.98} \\ \\ n = 87.755...$

Our final answer can't be a decimal, so we round it to:

$n = 87$

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3 years ago