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Harlamova29_29 [7]
2 years ago
13

What is the product? negative 9 x (5 minus 2x) 18 x squared minus 45 x negative 18 x squared minus 45 x negative 18 x minus 45 x

18 x minus 45 x
Mathematics
2 answers:
mylen [45]2 years ago
8 0

The correct answer is Option A

Oksi-84 [34.3K]2 years ago
4 0

For this case we must find the product of the following expression:

-9x (5-2x)

Applying distributive property to terms within parentheses and taking into account that:

- * + = -\\- * - = +

we have:

(-9 * 5) (x) + (9 * 2) (x * x)\\-45x + 18x ^ 2

Answer:

-45x + 18x ^ 2

Option A

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What is the quotient of 5472 and 81?
Akimi4 [234]

Answer:

67

Step-by-step explanation:

Division:-

\sf\Large\qquad\quad67\\ \begin{array}{cc} \cline{2 - 2}\sf 81 )&\sf \ 5472\\&\sf -487 \downarrow\\ \cline{2-2}& \sf \ \ \ \ 602\\ &\sf \ - 567 \\ \cline{2-2} & \sf \ \035 \\ \cline{2-2} \end{array}\\\\\\ Divisor \rightarrow 81 \\ \\ Quotient \rightarrow 67\\\\Remainder \rightarrow 35

5 0
1 year ago
A company buys paper clips at the rate of $7.50 per box for the first 10 boxes, $5.50 per box for the next 10 boxes, and $3.50 p
BlackZzzverrR [31]

Answer:

46 boxes


Step-by-step explanation:

  • First 10 boxes can be bought for 7.5*10=75
  • Next 10 boxes can be bought for 5.5*10=55

<em>So for a total of </em><em>20 boxes, </em><em>the cost is 75+55=130</em>

<u>We have remaining 221-130=91</u>


Each additional box costs 3.5, so for 91 dollars, we can get:

\frac{91}{3.5}=26 boxes


So, total 10+10+26=46 boxes can be bought for $221.00

5 0
2 years ago
What type of triangle has side lengths 12, 13, and 2√3?
Travka [436]

Answer:

The triangle is an obtuse scalene triangle

Step-by-step explanation:

we know that

if c^{2}=a^{2}+b^{2} --------> is a right triangle

if c^{2}>a^{2}+b^{2} --------> is an obtuse triangle

if c^{2} --------> is an acute triangle

where

c is the greater side

we have

c=13\ units

a=12\ units

b=2\sqrt{3}\ units

so

c^{2}=13^{2}=169

a^{2}+b^{2}=12^{2}+(2\sqrt{3})^{2}=156

so

c^{2}>a^{2}+b^{2} -------> is an obtuse triangle

Remember that

The given triangle has three different length side

so

Is a scalene triangle

therefore

The triangle is an obtuse scalene triangle

4 0
2 years ago
There are 12 boys and 16 girls in a classroom. which represents the simplified ratio of girls to students in the classroom?
Papessa [141]
The unsimplified version is 12:16
you have to find the highest common factor in them
in this case it would be 4
divide both numbers by 4 
3:4

hope this helps you
3 0
2 years ago
Read 2 more answers
In a West Texas school district the school year began on August 1 and lasted until May 31. On August 1 a Soft Drink company inst
WINSTONCH [101]

Answer:

$95.78

Step-by-step explanation:

f(t) = 300t / (2t² + 8)

t = 0 corresponds to the beginning of August.  t = 1 corresponds to the end of August.  t = 2 corresponds to the end of September.  So on and so forth.  So the second semester is from t = 5 to t = 10.

$T₂ = ∫₅¹⁰ 300t / (2t² + 8) dt

$T₂ = ∫₅¹⁰ 150t / (t² + 4) dt

$T₂ = 75 ∫₅¹⁰ 2t / (t² + 4) dt

$T₂ = 75 ln(t² + 4) |₅¹⁰

$T₂ = 75 ln(104) − 75 ln(29)

$T₂ ≈ 95.78

3 0
2 years ago
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