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3 years ago

Simplify the expression: 4x(x2 + 6x - 1) will mark brainliest pls help<3

Mathematics

2 answers:

ELEN [110]3 years ago

8 0

the answer is 4x(8x-1) <33

Rufina [12.5K]3 years ago

3 0

I think it’s 4x3 + 24x2 - 4x

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Riley just opened a checking account at the bank. Within the first month, she deposited three checks for $34.98, $51.02, and $51

nexus9112 [7]

Part 1:

Rational numbers have both demoninator and numerator as integers

Riley's withdrawals:

5.23 ---- - $\frac{523}{100}$

10.22 --- - $\frac{1022}{100}$

7.89 ---- - $\frac{789}{100}$

Riley's Deposits:

34.98 ---- $\frac{3498}{100}$

51.02 ---- $\frac{5102}{100}$

51.22 ---- $\frac{5122}{100}$

Part 2:

Order the rational numbers:

a - $\frac{523}{100}$ -----Least

b - $\frac{789}{100}$

c - $\frac{1022}{100}$

d- $\frac{3498}{100}$

e- $\frac{5102}{100}$

f- $\frac{5122}{100}$ ---- Greatest

Reasoning: Above the rational numbers are ordered from least to the greatest and they are represented by alphabets from a to f

Lets take the first rational number a = $\frac{523}{100}$ and compare it with the 5 other rational numbers. If it is less than all 5 numbers than that means it is the smallest one, this process will be applied on all rational numbers until all are sorted out.

Part 3:

Balance at the beginning: $128

Total Deposits: 34.98 + 51.02 + 51.22 = $137.22

Total Withdrawals: 5.23 + 10.22 + 7.89 = $23.34

Balance at the end of month: Total Deposits - Total withdrawals

= 137.22 - 23.34

Balance at the end of month = $113.88

5 0

4 years ago

What type of triangle is this triangle?

olga2289 [7]

It’s isosceles because 2 acute angles and one 90 degree angle makes an isosceles triangle

8 0

2 years ago

Plisss help write the linear equation that vives the rule for this table

sineoko [7]

well, we know is a line, and to get the equation of any straight line all we need is two points, hmmm let's use from the table hmm say (2 , -50) and hmmm (4 , -88)

$(\stackrel{x_1}{2}~,~\stackrel{y_1}{-50})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-88}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-88}-\stackrel{y1}{(-50)}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{2}}}\implies \cfrac{-88+50}{2}\implies \cfrac{-38}{2}\implies -19$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-50)}=\stackrel{m}{-19}(x-\stackrel{x_1}{2}) \\\\\\ y+50=-19x+38\implies y=-19x-12$