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Inessa [10]
3 years ago
8

The first one:))))))))) I’ll make brainliest answer this is due tomorrow pleasseesse

Mathematics
1 answer:
Xelga [282]3 years ago
6 0
4820 in profit, just need to subtract the expenses from the profit =)
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The distance between a skier on top of a mountain and the end of the ski course is 2395 feet if the end of the course is 642 bel
Sunny_sXe [5.5K]
I think it is 3037 feet
6 0
3 years ago
Read 2 more answers
If a₀ , a₁ , a₂ , a₃ , are all positive , then 4a₀x³ + 3a₁x² + 2a₂x + a₃ = 0 has at least one root in (-1,0) if
artcher [175]
If f(x)=4a_0x^3+3a_1x^2+2a_2x+a_3, then you have

f(-1)=-4a_0+3a_1-2a_2+a_3
f(0)=a_3

By the intermediate value theorem, there will be some number -1 such that f(c)=0 (i.e. f(x) will have a root in (-1,0)) if you can guarantee that f(-1) or f(-1)>f(c)>f(0).

Since the coefficients a_i are all positive, then you know right away that f(0)>0, so you need to have f(-1) in order for there to be such a c.

This means you need to have

-4a_0+3a_1-2a_2+a_33a_1+a_3

which means (A) must be the answer.
7 0
2 years ago
Simplify -|-28| + (-5)^2
ExtremeBDS [4]
The answer is -3 because
 
-|28|= -28       now the problem looks like -28+(-5)^2

(-5)^2=25

-28 +25=  -3


3 0
3 years ago
Joe has fraction 5 over 6 pound of bird seed. He needs fraction 1 over 3 pound to feed the birds daily. Which of the rectangle m
Semenov [28]

Since Joe has 5/6 pounds left and he only needs 1/3 pounds each day to feed the birds, therefore the number of remaining day’s worth of seed is:

days = (5/6) / (1/3) = 2.5

The remaining seed can run up to 2 and half days. This also means that after 2 days, he is remained with ½ of 1/3 pound. ½ of 1/3 pound is equivalent to 1/6 pound. Therefore the correct rectangle model to use is:

<span>Rectangle model divided into 3 equal sections, two sections are labeled one-third and one section is labeled one-sixth, equaling two and one-half days.</span>

5 0
2 years ago
Read 2 more answers
I need help ASAP if you can help you are amazing.
olchik [2.2K]

Answer (Note: the bold are answers):

First question answer:

Point = (3,1)

Slope = 3

y = 3x + b

(1) = 3(3) + b

1 = 9 + b

1 - 9 = b

-8 = b

y = 3x - 8

The second question answer:

y = mx + b

Get two points:

(3,-7) and (4,-11)

m = -11 - (-7) / 4 - 3

m = -11 + 7 / 1

m = -4 / 1

m = -4

b = + 3

y = -4x + 3

3 0
2 years ago
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