Task:
Engineers are digging a 3200-foot-long tunnel at a constant rate. After 5 months, the engineers still need to dig 1700 feet to finish the project. How much time does it take to complete the tunnel from start to finish?

Will the engineers have enough time if the project was started in December 2020 and the deadline to finish the project was in August 2021? Please explain your answer for yes or no.

Hint:
y=mx+b (slope-intercept form)
x=time
y=distance
b=3200
Start & Finish: ??
Total length=3200ft

Answer:

318 days or 10.6 months,

No, because the time between august and december is 8 months and it would take 10 to complete the tunnel

Step-by-step explanation:

start by determining the slope:

subtract the remaining distance from the total distance to determine distance so far, then divide by time.

m = (3200 - 1700)/5

m = 1500/5

m = 300

y = mx + b

Plug in to solve for x.

3200 = 300x + 0

3200 = 300x

divide y by m. This is x. (this is known as inverse operation if you didnt know already.)

3200 = 300(10.6_)

Im tired
Which of these describes a ray?

Question 3 options:


Extends in both directions with no end


A part of a line that connects two endpoints


Has a start point but no endpoint


An exact location that has position but no size

hi! can someone please help? i added a pic so that u can see what i need help on. hopefully it helps

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Topic 12 Online math help

help plzzzz 10 points

Alfred spends 7 hours doing work outside each week as part of his chores. For every extra hour he spends working outside beyond
the 7 hours, his parents pay him $7. How much money will he be paid if he spends 13 hours working outside?
OA.
$13
ОВ.
$91
OC.
$140
OD
$42

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will give brainliest

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b = ?
Will give out brainlyist

Here’s a clearer picture person who answered

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Which of the following best defines Biodiversity?

a
the variety of different species in an ecosystem or on Earth
b
an individual organism
c
all the abiotic factors in a given area
d
the number of individuals of one species in a particular area
Question 2 (3 points)
Which of the following is NOT one of the 3 levels of biodiversity?

a
Universe diversity
b
Ecosystem diversity
c
Genetic diversity
d
Species diversity
Question 3 (3 points)
Which of the following best defines species diversity?

a
The variation in all the different types of ecosystems (or biomes) found on Earth.
b
The variation in genes that exists within a species.
c
The number of species and abundance of each species that live in a particular location.
Question 4 (3 points)
Which of the following best defines genetic diversity?

a
The variation in genes that exists within a species.
b
The variation in all the different types of ecosystems (or biomes) found on Earth.
c
The number of species and abundance of each species that live in a particular location.
Question 5 (3 points)
Which of the following best defines ecosystem diversity?

a
The number of species and abundance of each species that live in a particular location.
b
The variation in genes that exists within a species.
c
The variation in all the different types of ecosystems (or biomes) found on Earth.
Question 6 (3 points)
What are ecosystem services?

a
services that ecosystems provide where they will remove all the trash in your home.
b
ecosystems that are pretty to look at.
c
a processes where ecosystems become cleaner and cleaner every day.
d
processes or services provided by biodiversity that help make daily life more livable for humans.
Question 7 (12 points)
There are four major categories of ecosystems services that biodiversity provides: Provisioning Services, Regulating Services, Cultural Services, and Supporting Services.

Match each of the 4 types of ecosystem services to its correct definition. Next to each number 1-4 you will type the letter (a, b, c, or d) of the answer choice that matches.

Column A
1.
Provisioning Services

:
Provisioning Services

2.
Regulating Services

:
Regulating Services

3.
Cultural Services

:
Cultural Services

4.
Supporting Services

:
Supporting Services

Column B
Column B
a.
Non-material benefits that help the culture and advancement of people and help shape our culture, such as providing a place to practice creativity through music, art or recreation.

b.
The very basic services that exist naturally allowing ecosystems to thrive such as the water cycle, photosynthesis, soil creation, and nutrient recycling.

c.
Processes provided by nature that benefit the Earth and people such as pollination, decomposition of dead organisms, prevention of soil erosion, or water purification.

d.
Any type of benefit to people that can be taken from nature, such as food, water, timber, or medicine.

PLEASE HELP!!!!! AND TAHNK YOU

PLS HELP ME- I HAVE TO TAKE A TEST AND IM SO CONFUSED ON 8 QUESTIONS-Directions :Use the given information to find the missing piece. You may use any method to solve the following problems, but please make sure to show all work.
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