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mafiozo [28]
3 years ago
8

Simplify the expression 8x² + x - 5 + (2x² - 9x + 13) *

Mathematics
1 answer:
Elena-2011 [213]3 years ago
7 0

Answer: 10x^2-8x+8

I have explained detaled answers below in the link.

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10/18=c/4.5<br> what is c
zhannawk [14.2K]
\frac{10}{18}=\frac{c}{4,5}\\\\cross\ multiplication\\\\&#10;4,5*10=18c\\\\&#10;45=18c\ \ \ \ | divide\ by\ 18\\\\&#10;c=\frac{45}{18}=2\frac{1}{2}\\\\\&#10;\boxed{c=2\frac{1}{2}}
7 0
3 years ago
A right triangle has one 64degree angle and one 90 degree angle
melamori03 [73]

Answer:

I dont know what your asking, for the other angle? Ig so. Answer: THE OTHER ANGLE IS 26. :)

Step-by-step explanation:

64 + 90 = 154.

All triangles add up to 180 degrees.

180-154 = 26.

7 0
3 years ago
A certain forest covers an area of 4800 km^2 . Suppose that each year this area decreases by 5.25% . What will the area be after
9966 [12]

Answer:

the area after 6 years is  3,473 km^2

Step-by-step explanation:

The computation of the area after 6 years is as follows:

= Area × (1 - decreased percentage)^number of years

= 4,800 km^2 × (1 - 5.25%)^6

= 4,800 km^2 × 0.9475^6

= 3,473 km^2

Hence, the area after 6 years is  3,473 km^2

5 0
3 years ago
A tree in Michael's yard has 120 leaves and loses an average of 4.5 leaves each day. A tree in Heather‘s yard has 45 leaves and
kaheart [24]

Answer:

60 days

Step-by-step explanation:

7 0
3 years ago
If x=square root of 6 and y^2=12 then 4/xy=
vova2212 [387]
Y² = 12
y = 2√3

x = √6

Now, 4 /xy
= 4/2√3√6
= 2 / 3√2
= √2/3

In short, Your Answer would be √2 / 3

Hope this helps!
5 0
4 years ago
Read 2 more answers
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