3 years ago

I need this answered asap i will mark brainliest.

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

4 0

I typed right on the problem set.

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Which is the best estimate of 174% of 141? 245 252 263 270

Svetlanka [38]

Answer:

245

Step-by-step explanation:

°174/100*141

=245

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3 years ago

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emily sent twenty text messages a day which is four times as many texts as Henry how many texts did henry sent

-Dominant- [34]

Answer:

henry sent 5 texts

Step-by-step explanation:

simple really. emily sent 20 which is 4 times as much as henry so to find out how many henry sent just divide emilies' number of texts by 4 to get 5 which is how many henry sent

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4 years ago

Dan uses the equation g(x)=5x+50 to model the balance of his savings account after saving for x weeks. What is the value and mea

yarga [219]

Answer:

D. $350

Step-by-step explanation:

Replace 'x' with 60. g(60)= 5(60) =+ 50

g(60)= 300 + 50

g(60) = 350.

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3 years ago

Find the numbers a, b and c if the polynomial x3−18x2+24xb−c is the cube of the binomial x+2a.

mojhsa [17]

Answer:

$a=-3\\ \\b=\dfrac{9}{2}\\ \\c=216$

Step-by-step explanation:

Use formula

$(u+v)^3=u^3+3u^2v+3uv^2+v^3.$

Hence,

$(x+2a)^3=x^3+3x^2\cdot 2a+3x\cdot (2a)^2+(2a)^3=x^3+6ax^2+12a^2x+8a^3.$

This expression is equal to

$x^3-18x^2+24bx-c,$

so we can equate the coefficients at powers of x:

$x^3:\ 1=1\\ \\x^2:\ 6a=-18\Rightarrow a=-3\\ \\x:\ 12a^2=24b\Rightarrow b=\dfrac{9}{2}\\ \\1=x^0:\ 8a^3=-c\Rightarrow c=-8\cdot (-3)^3=216.$

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4 years ago

Between what two consecutive integers does the square root of 128 lie?Between what two consecutive integers does lie?

Mrrafil [7]

B...
11^2 = 121
12^2 = 144

128 is between those

4 0

4 years ago