i dont know how to solve Q 4,5 plea.se help​

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Answers 1

Answer:

pls amrk me as th ebrainlest

Step-by-step explanation:

given curve y= x^2-4x+3

differentiate wrt x to get gradient,

dy/dx = 2x-4

2a-4= -1

a= 3/2

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Other related questions that may help you

The diagram illustrates part of the carbon cycle. A fawn eating grass. Which best describes the diagram? A consumer is obtaining carbon by breathing it in from the atmosphere. A consumer is obtaining carbon by absorbing it from the soil. A consumer is obtaining carbon by eating carbon-based molecules stored in a producer. A consumer is obtaining carbon by eating carbon-based molecules stored in a decomposer.

Answer: A consumer is obtaining carbon by eating carbon-based molecules stored in a producer.

Explanation: Grass is composed of carbon molecules and these carbon molecules are ingested by the fawn. Grass is a producer because it uses sunlight to create new plant and animal life. A decomposer breaks down waste organic matter from plants and animals, including dead materials, and release their nutrients back into the earth.

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What are the 3 constant variables in a balloon rocket? Please justify why and how they will stay constant.
the dissociation energy of H2 and Br2 at 1 ATM and 25°C are 436 and 190 kJ/mol respectively calculate the dissociation energy of HBr if the enthalpy of its formation under similar condition is - 36 kj/mol​

ΔH

o

=∑bond energy (reactants)−∑bond energy (products)

=433+192−2×364=−103 KJ

AB is parallel to CD and PQ is transversal, find x and y(pls ignore my handwriting hehe) ​
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Answer:

x=26 y=87

Step-by-step explanation:

here,

2x+35+3x+15=180. (linear pair also it is 3x+5 because of transversal rule)

so, 5x+50=180

5x=180-50

5x=130

thus, x=26

now ,

y+3x+15=180. (same side of the transversal)

y+78+15=180

y+93=180

y=180-93

y=87

Answer:

The value of x=26 and y= 87 .

Step-by-step explanation:

(2x+35)+(3x+15)=180. ……… suplimentry angles

5x+50 = 180

5x = 180 - 50

5x = 130

x = 26

By putting the value of "x" in equation (1), we get

= 2(26) +35

= 52+35

y = 87. ........ corresponding angles
If a body has angular frequency of L. rpm, then find the time period and Angular velocity​

Answer:

Angular velocity is defined as the rate of change of angular displacement with respect to time. It is usually expressed by a Greek letter (omega).

Mathematically, angular velocity is ω=dθ/dt

If a body is rotating at the rate of N r.p.m. (revolutions per minute), then its angular velocity,

ω=

60

2πN

rad/s

Step-by-step explanation:

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