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3 years ago

Can someone help me with these two please

Mathematics

2 answers:

Xelga [282]3 years ago

7 0

Number 6 is 3 :)

.....

zvonat [6]3 years ago

5 0

Answer:

1.) a= -49

2.) t= 3

Step-by-step explanation:

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I’m confused can ya help me

Harlamova29_29 [7]

Answer:

C & D

Step-by-step explanation:

x² + 3x - 3 = 0

a = co efficient of x² = 1

b= co efficient of x = 3

c = constant = -3

roots = (-b ± $\sqrt{b-4ac}$ )/2a

= (-3± $\sqrt{3^{2}-4*1*[-3]}$ )/2*1

= (-3± $\sqrt{9+12}$ )/2

= (-3±√21)/2

$x = \frac{-3+\sqrt{21}}{2} ; x =\frac{-3-\sqrt{21}}{2}$

7 0

3 years ago

Pls help i might give brainliest

zmey [24]

Answer:

60% I hope I help :) have a great day

6 0

2 years ago

1) A city has a population of 21,517 based on a census taken in 1998. If the

nevsk [136]

Answer:

B. 606,900

Step-by-step explanation:

Hope it helps

4 0

2 years ago

Read 2 more answers

The radius of the front wheel of Paul's bike is 63cm. Paul goes for a cycle and travels 69.89km. How many full revolutions did P

Rudiy27

Answer: $17,649$

Step-by-step explanation:

Given

The radius of the cycle is $r=63\ cm$

Distance traveled by Paul is $68.89\ km$

Distance traveled by one complete revolution of wheel is equivalent to circumference of wheel i.e.

$\Rightarrow 2\pi r\\\\\Rightarrow 2\times \dfrac{22}{7}\times 63\\\\\Rightarrow 396\ cm\ \text{or}\ \text{3.96}\ m$

No of revolution made by wheel

$\Rightarrow n=\dfrac{69.89\times 1000}{3.96}\\\\\Rightarrow n=17,648.9899\approx 17,649$

7 0

2 years ago

The population of rabbits on an island is growing exponentially. In the year 2001,

Alexxandr [17]

I think the answer is 666.

2050-940=1110

1110/5=222

222x3=666

6 0

2 years ago

Read 2 more answers

Can someone help me with these two please ​

Can someone help me with these two please