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Westkost [7]
2 years ago
5

6. Multiply: (x – 4)(x + 5)​

Mathematics
2 answers:
Elena-2011 [213]2 years ago
6 0

Answer:

x^2+x-20

Step-by-step explanation:

(x-4)(x+5)

=x^2-4x+5x-20

=x^2+x-20

Hope This Helped

Anvisha [2.4K]2 years ago
3 0

Answer:

x^2+x-20

Step-by-step explanation:

1) Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.\\

x^2+5x-4x-20

2) Collect like terms.

x^2+(5x-4x)-20

3) Simplify.

x^2+x-20

<em>What is the FOIL method</em>

It stands for:

First, Outside, Inside, Last

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PLS HELP
DochEvi [55]

Answer:

10.5

Step-by-step explanation:

v=158

l×w×h =158

l×5×3=158

l×15=158

L =158÷15=10.5

8 0
2 years ago
Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
Lerok [7]

To eliminate the fraction, we multiply by 4

<h3>How to eliminate the fractions?</h3>

The equation is given as:

-3/4m-1/2=2+1/4m

Rewrite properly as:

-\frac{3}{4}m - \frac 12 = 2 + \frac 14m

The denominators of the above fractions are 2 and 4

The LCM of 2 and 4 is 4

So, we multiply through by 4.

This gives

-3m - 2 = 8 + m

Hence, to eliminate the fraction, we multiply by 4

Read  more about fractions at:

brainly.com/question/10354322

#SPJ1

7 0
2 years ago
Y = 2x^2
GarryVolchara [31]

Answer:

y = 2x^2 is a parabola opening up with it's vertex at (0,0)... y=3x^2 -4 is also a parabola opening up, but it is 'thinner' in that it rises in y faster and it's vertex is at (0,-4)

Step-by-step explanation:

all equations of the type y = ax^2 + b are parabolas centered on the y-axis, soo the vertex is always on (0,b)

If a is positive then the parabola opens up,

the bigger a is, the 'thinner' the graph is, i.e. the faster the graph rises

the value of b determines the location of the vertex, if b is added, then the vertex rises over the x-axis, if b is subtracted then the vertex is below the x-axis

8 0
3 years ago
Which of the following best describes the equation below?<br> 2(x + 9) + 5x = 7x - 18
VARVARA [1.3K]
No solution but the equation is true
3 0
3 years ago
1. Maggie keeps track of daily bird sightings. The table below shows the number and type of swans that were seen in one day. Wha
Vitek1552 [10]

Answer:

hello! i just did this problem and the answer is 12.2%

Step-by-step explanation:

first we need to add all of the swans together, then from there you take the amount of mute swans and divide it by the sum of all the swans! finally, multiply by 100 to convert into a percent and round it to 12.2%

hope this helped plz give me brainliest! <3

8 0
2 years ago
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