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sergeinik [125]
2 years ago
8

Multiply (x^2 - 5x)(2x^2 + x - 3)

Mathematics
1 answer:
gulaghasi [49]2 years ago
8 0

Answer:

\textbf{C.}~2x^4 -9x^3-8x^2 +15x

Step-by-step explanation:

~~~~(x^2 -5x)(2x^2 +x-3)\\\\=2x^4+x^3 -3x^2 -10x^3 -5x^2 +15x\\\\=2x^4 -9x^3-8x^2 +15x

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The bar chart shows all the eye colours of students in a class. What fraction of the students have blue eyes? Give your answer i
Burka [1]

Answer:

1/29

Step-by-step explanation:

There are 29 students in total, and the students with blue eyes is only 1.

The fraction would be 1/29 and this is its simplest form.

5 0
3 years ago
Help :(
Galina-37 [17]

Answer:

59.7

Step-by-step explanation:

you divide 39.80 by 10

then times it with 15 and get your answer

7 0
3 years ago
Use the information given to enter an equation in standard form.<br><br> (−1, 1) and (0, 2) .
AVprozaik [17]

First find the slope:

   m = ( 2 - 1 ) / ( 0 - (-1) ) = 1 / 1 = 1

Set up slope-intercept form:

  y = 1·x +2

Now move x and y to the left and leave 2 on the right:

  -x + y = 2

This is also equivalent to x - y = -2, so that just depends if you want your x coefficient to be positive or negative.

5 0
3 years ago
Read 2 more answers
AC = <br> Round your answer to the nearest hundredth.
dusya [7]

Answer:

AC ≈ 5.03

Step-by-step explanation:

We can solve the problem above using the trigonometric ratio, they are;

SOH CAH TOA

sin Ф = opposite / hypotenuse

cosФ= adjacent/ hypotenuse

tan Ф = opposite / adjacent

From the diagram above, in reference to angle B;

opposite =AC     and   adjacent =BC

Since we have opposite and adjacent, the best formula to use is

tanФ = opposite / adjacent

tan B = AC  / BC

tan 40 =  AC/ 6

Multiply both-side of the equation by 6

6× tan 40   =  AC/ 6  ×  6

At the right-hand side of the equation, 6 will cancel-out 6 leaving us with just AC

6×tan 40 = AC

5.034598  = AC

AC ≈ 5.03   to the nearest hundredths

4 0
4 years ago
Haydn made a scale model of a building. The actual height of the building is 75 feet. Haydn's model used a scale in which 1.5 in
vfiekz [6]

Answer:

3.75

Step-by-step explanation:

1.5 equals 30 ft so x2 equals 60 then 15 is half of 20 so half of 1.5 in is .75 so 3 plus .75

7 0
3 years ago
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