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Nookie1986 [14]
3 years ago
12

​(8x−9​)+​(10x+10​) simply the answer

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

18x + 1

Step-by-step explanation: combine like terms so 8x +10x + (-9)+10

neonofarm [45]3 years ago
3 0

Answer:The answer is 28

Step-by-step explanation:

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I don’t know this question? Can you pls answer it...
vladimir2022 [97]

Answer:

12i

Step-by-step explanation:

be careful with your screenshots and make sure it doesnt show your name

3 0
3 years ago
Which of the following is the ratio of 5 cm to 10 km​
pshichka [43]

Answer:

1/200000

Step-by-step explanation:

first 10 km equals to 1000000cm

so 5/1000000cm

equals to 1/200000

3 0
2 years ago
2k^2-5k-18=0 what is both of the values of k? plz help!!! 15 pts!!!
ddd [48]
To factor quadratic equations of the form ax^2+bx+c=y, you must find two values, j and k, which satisfy two conditions.

jk=ac and j+k=b

The you replace the single linear term bx with jx and kx. Finally then you factor the first pair of terms and the second pair of terms. In this problem...

2k^2-5k-18=0

2k^2+4k-9k-18=0

2k(k+2)-9(k+2)=0

(2k-9)(k+2)=0

so k=-2 and 9/2

k=(-2, 4.5)
5 0
3 years ago
Which angle measure below is not a possible measure of an exterior angle of a regular polygon?
elena-14-01-66 [18.8K]
All exterior angles of a regular polygon would equal 360 degrees. SO... based on that, one exterior angle would have to multiplied by whatever sum (whole number) to equal 360 degrees to find the number of sides. Here you divide 360 by one of the exterior angles, if it does not equal a whole number then it would be inaccurate.
In this case only 54 degrees would not fit into one of the exterior angles.
8 0
3 years ago
PLEASE HELP and explain! ill give brainliest if you do
EastWind [94]

Area of the rectangle

= l  \times b

= 8 \times 6

= 48 {in}^{2}

Area of the semicircles

= 2 \times ( \frac{1}{2} \pi {r}^{2} )

= \pi {r}^{2}

= \pi {3}^{2}

= 9\pi

= 9 \times 3.14

= 28.26 {in}^{2}

Area of the figure

= 48 + 28.26

= 76.26 {in}^{2}

= 76.3in²

(rounded)

6 0
2 years ago
Read 2 more answers
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