Answer:
B
Explanation:
The heart and lungs are in the chest, while the brain is located at the head.
Answer:
B
Explanation:
I got it right on my test
a rocket is fired straight upward from ground level with an initial velocity of 480Km)hr. After t second , its distance above the ground level is given by 480t-16t^2. For what time interval is the rocket more than 3200Km above ground level?
Answer:
answer
Explanation:
The rocket is 19.5 m above the ground when h=19h=19:
h19.50tttamp;=−8t2+32tamp;=−8t2+32tamp;=−8t2+32t−19.5amp;=−32±322−4(−8)(−19.5)−−−−−−−−−−−−−−−−√2(−8)amp;=−32±1024−624−−−−−−−−−√−16amp;=−32±400−−−√−16amp;=−32±20−16amp;=−32+20−16=0.75amp;=−32−20−16=3.25amp;amp;amp;amp;amp;amp;amp;amp;Substitute h=19.amp;Subtract 19.5 on both sides.amp;Solve for t using the Quadratic Formula.amp;Simplify.amp;Subtract.amp;Evaluate the root.amp;Find the two solutions.
h
19.5
0
t
t
t
amp;=−8t
2
+32t
amp;=−8t
2
+32t
amp;=−8t
2
+32t−19.5
amp;=
2(−8)
−32±
32
2
−4(−8)(−19.5)
amp;=
−16
−32±
1024−624
amp;=
−16
−32±
400
amp;=
−16
−32±20
amp;=
−16
−32+20
=0.75
amp;=
−16
−32−20
=3.25
amp;
amp;
amp;
amp;
amp;
amp;
amp;
amp;Substitute h=19.
amp;Subtract 19.5 on both sides.
amp;Solve for t using the Quadratic Formula.
amp;Simplify.
amp;Subtract.
amp;Evaluate the root.
amp;Find the two solutions.
The rocket will then be at least 19.5 m above the ground for the interval 0.75≤t≤3.25
0.75≤t≤3.25
The time interval for which the rocket is more than 3200 km above the ground level is 61.25 seconds.
What is quadratic equation?To solve this problem, we need to find the time interval for which the rocket's distance above the ground level is greater than 3200 km.
We can start by setting the equation for the rocket's distance above the ground level equal to 3200:
We can then solve this equation for t using the quadratic formula
[tex]480t - 16t^2 = 3200\\t = (-480 +/- sqrt(480^2 - 4*(-16)*3200)) / (-32)\\This simplifies to:\\t = (-480 +/- sqrt(480^2 + 256000)) /\\ (-32)t = (-480 +/- sqrt(2304000)) /\\ (-32)t = (-480 +/- 1500) / (-32)t = (-1980) /\\(-32)t = 61.25t = -24.25\pi[/tex]
Since the time interval we are looking for is positive, we can ignore the negative solution. The time interval for which the rocket is more than 3200 km above the ground level is therefore 61.25 seconds.
Learn more about quadratic equation, here:
https://brainly.com/question/17177510
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Water from precipitation that does not enter the ground but drains to surface water bodies is what?
Answer:
Runoff water.
Explanation:
Which of the following factors would have a negative impact on the survival of a species? a A high level of biodiversity in the organism's ecosystem b Access to multiple sources of fresh water c Barriers restricting access to resources d Reduction in the population of competing species
Answer: The answer is...
Explanation: I dont know
13. What are the immunisation programmes available at the nearest health centre in your locality?
Answer:
Explanation:
This is because immunization programmes are programmes organised by the government to prevent some certain diseases by boosting our immune system to prevent them through vaccines.
Theses programmes for infants include DPT, measles, poliomyelitis, BCG and MMR.
(ii) For childre include TT, small pox, DTTyphoid, and TAB.
(iii) For pregnant woman it include TT and hepatitis-B.
? Can y’all help me with this answer
what amino acid causes sickle cell anemia?!!!!!??
How are stars described, using their physical properties
and distance
Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth. brainliest?
Explanation:
VERY EASY! URGENT NEED HELP FAST! ILL GIVE BRAINLIEST AND LIKE! HURRY PLEASE
Answer:
Its B
Explanation:
1. A person becomes diabetic when they can't make insulin, or when their cells stop
responding to insulin. What happens to a person when they eat food and are diabetic?
How is the homeostasis disrupted?
Answer:
Most foods especially carbohydrate diets ends up in the blood stream in the form of sugar causing a spike
Explanation:
The high sugar level in the blood then penetrate the body cells in an uncontrolled manner since there is no enough or no insulin produced to regulate it.
Please help this is due today
I’ll give brainliest
Answer: p = -35
Explanation:
p/5 = -7
p = -35
Which of the following best describes a relationship in this grassland?
A Badgers are top predators because they eat upland sandpipers and beetles.
B A producer-consumer relationship exists between lupines and ants.
C a predator-prey relationship exists between beetles and ground squirrels.
D upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers.
Answer:
D.
Explanation:
They consume both things that consume food and things that produce food.
*PLEASE HELP*
What is one result of meiosis?
O Identical Daughter Twins
O Repair of Damaged Cells
O A Larger Organism
O Formation of Gametes
Which pair represents an example of analogous structures in animals?
A. coccyx
B. pelvis
C. radius
D. cerebellum
HELP ME PLS!!!! I NEED THIS LAST QUESTIOB
mRNA
UGU UAU AUC GAA
Answer:
I can not see the picture?
6. Theo wants to model the water cycle. What should he use as the source 7 points
of energy for the water cycle?
O A. a fan
B. a lamp
C. a pan of soil
D. a spray bottle
Other
This is a required question
Which of the following is an example of an animal that might be culled?
Rosle has produced a lot of dairy calves, but her milk production is low.
Buck is lean and muscular but looks similar to all of the other beef bulls.
Clyde is a healthy but overly aggressive and mean dalry bull,
Sami had low birth welght as a lamb but quickly grew into a large sheep.
Answer:
D. Sami had low birth weight as a lamb but quickly grew into a large sheep.
Explanation:
The Sami lamb is an example of culled because it has the characteristics of quick growth. Culling is the process of separating organisms from a group of same type of organisms due to presence of desired or undesired characteristics. Sami sheep has a unique characteristic of having less weight at time of birth but having quick growth features that make to gain more weight and become large sheep so this sheep is removed from the population for its good traits.
state how facilitated diffusion is achieved describe ways
Answer:
The polar membranes/ions go through the protein to bypass the hydrophobic tails, which are "afraid" of charged molecules.
Glucose passes through the protein because it's too big to diffuse on its own.
I hope this information was very helpful.
The chances of developing certain conditions like diabetes are higher if a family member also has the disorder because they are
O passed through blood contact
O highly infectious
O related to sleep patterns
O genetically based
Answer:
genetically based is the answer
why do you produce carbon dioxide when working out?
Answer: The lungs bring oxygen into the body, to provide energy, and remove carbon dioxide, the waste product created when you produce energy. The heart pumps the oxygen to the muscles that are doing the exercise. When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.
i need help on fiding a plant that is really interesting and different and show me the picture please and it has to be that you took the picture please
Here is my favorite. Clathrus Archeri. It's a fungus that is found in gardens and stuff and it is super cool looking. You can also search for it as Octopus Stinkhorn fungus.
When glucose is used for growth, it is converted into:
Answer:
The sugar produced by photosynthesis can be converted into the sugar glucose. Thousands of glucose molecules can be linked together to form the complex carbohydrate cellulose. Cellulose is a very tough molecule that is used to build the cell wall of plant cells.
Explanation:
What group is the first species to arrive in ecological succession?
A. Intermediate
B. Pioneer
C. Climax
Answer:
B. Pioneer
Explanation:
The first species to arrive are fast-growing “weedy species,” such as lichens or small annual plants, which create the first layers of soil as they decompose.
Answer:
B. Pioneer
Explanation:
The pioneer group is the first species to arrive in ecological succession. Hence, option (B) is the correct answer.
what do birds short necks help them to do? pls help :/
Explanation:
Most diving birds have (relatively) long necks and shorts legs, although their necks aren't as long as say herons, storks or egrets. Take the common loon for instance. Their necks can be up to half as long as their bodies but their legs are so short and set so far back that they are very awkward on land.
Answer: they can extend it out and twist their head around so easy
Explanation:
what is a difference between a lens and a mirror
Answer:
hi
Explanation:
The lens is a material made of glass or plastic bounded by two surfaces. ... A mirror is a reflector that is shiny from one side and reflects the light rays coming from the object to make it appear as an image to the other side. The lens is of two types viz: Concave lens and convex lens.
have a nice day
Answer:
The difference between mirror and lens lies in how light reflects when falls over their surface. When light interacts with any surface, mainly two things happen; Reflection and Refraction. The main difference between mirror and lens is that image forms by reflection, as the light falls on a mirror. In lens, the image is formed by refraction.
A soccer player kicks a ball. Which of the following describes the reaction force to this kick?
A. friction between the ball and the foot
B. friction between the ball and the ground
C. force applied to the ground by the foot
D. force applied to the foot by the ball
Answer: D. force applied to the foot by the ball.
Explanation:
The basic premise of force is that for every action, there is a reaction. The reaction force is the force that pushes back so to speak, against the action that you initiated.
This reaction force by acting against us, ensures that we move forward by pushing us.
When the player struck the ball, the ball pushed back against the player and this force that was applied to the foot by the ball was the reaction force.
help please !! it’s due in 20 mins &’ i need help. only answer if you know <3
Answer:ohh i think for elk its low but in past it was high and willow tree on past was less now it is more
Explanation:
HELP!!!! 50PTS!!!! WILL MARK BRAINLIEST!!!
A certain reaction is endothermic in the forward direction. The reaction has less moles of gas on the product side. Which of the following stresses would increase the yield of the products (shift right)? (4 points)
Increasing the volume
Decreasing the pressure
Increasing the temperature.
Decreasing the reactant concentration
PLEASE HELP!! what was one new thing that you learned while dissecting a sheep eye
Answer:
I learned that there is a gooey, film-like substance that acts like a lens for sheep to see.
Explanation:
What must happen for a hypothesis to become a theory?
A. It must be well-tested and have supported results every time.
B. All possible alternative hypotheses must be tested first.
C. A hypothesis must be published and tested by scientists for a decade before it is a theory.
D. A theory is developed only after a hypothesis has been refuted and changed.
Answer:
A.it must be well-tested and have supported results every time
Answer:
Explanation:b