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nlexa [21]
3 years ago
14

PLEASE HELP!! WILL GIVE BRAINLIEST FOR BEST ANSWER!! Please solve #30 and #31.

Mathematics
1 answer:
Feliz [49]3 years ago
8 0
I could do the calculations but I ran out of space....

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17x2 - 5x + 10x - 8x2
USPshnik [31]

Answer:

9x2+5x

Step-by-step explanation:

combine like terms

4 0
3 years ago
What is the slope of the line perpendicular to the line with equation 4x-5y+13=0
motikmotik

Answer:

m = - 5/4

Step-by-step explanation:

If two lines are perpendicular, their slopes are negative reciprocals, which means that their product is -1

We can write the equation

4*x - 5*y + 13  = 0

as:      5*y  =  4*x  + 13      or    

y  = (4/5)*x  + 13        (1)

Equation (1) is the equation of a straight line in its slope point form, 4/5 is the slope, according to this  the slope of a perpendicular line is

-5/4

4 0
3 years ago
A school bus has 22 rows of seats, and 4 students can be seated in each row. Students riding in the bus have filled 19 rows of s
Lelu [443]

Answer:

6

Step-by-step explanation:

total no. of seats = 22 x 4 = 88

total no. of seats occupied = 19 * 4 + (22-19)*4/2 = 76 + 6 = 82

no. of empty seats = 88 -82 = 6

3 0
2 years ago
Brainliest to the first person who answers this what’s the surface area of the first picture and what’s the volume of the second
ycow [4]

Answer:

459.6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which organisms are examples of decomposers?<br> A. rabbits<br> B. lions<br> C. fungi<br> D. trees
NikAS [45]

Answer:

C. fungi

Step-by-step explanation:

Here only<u> </u><u>Fungi</u> is an example of decomposer.

Rabbits and lions are examples of consumers.

Trees are an example of producers.

The following list defines and provides examples of the feeding (trophic) levels that comprise food webs:

Producer: organism on the food chain that can produce its own energy and nutrients. Examples: grasses, Jackalberry tree, Acacia tree

Primary consumer/herbivore: organism that eats mainly plants. Examples: cows, impalas, warthogs, zebras

Secondary consumer/carnivore: organism that eats meat. Examples: leopard, lion

Omnivore: organism that eats a variety of organisms, including plants, animals, and fungi. Examples: humans, aardvarks

Decomposer/detritivores: organisms that break down dead plant and animal material and waste and release it as energy and nutrients in the ecosystem. Examples: bacteria, fungi, termites

Scavenger: animal that eats dead or rotting animal flesh. Examples: vultures, hyenas

Insectivore: organism that mostly eats insects. Example: Red-billed oxpecker

7 0
3 years ago
Read 2 more answers
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