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3 years ago

Help Please..

Mathematics

1 answer:

8_murik_8 [283]3 years ago

3 0

$4a^2-6a+8$

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Decide whether the following statement is true or false. If false, show why.

nikitadnepr [17]

Answer:

False

Step-by-step explanation:

√(-9)^2=9

Solution is 9 not -9

Thus it is false

3 0

4 years ago

Write h(x)=x2-6x + 3 in vertex form

Anna007 [38]

Answer: The vertex form is h(x)=(x-3)^2-6

Step-by-step explanation:

Using the complete the square method, first complete any squares

X^2-6x+(-3)^2-(-3)^2+3

Use the binomial formula

(x-3)^2 - (-3)^2 +3

Simplify

(x-3)^2-6

7 0

3 years ago

Suppose a car's momentum is calculated to be 36000 . The mass of the car is 1,500 kg. What is the magnitude of the velocity of t

Ad libitum [116K]

Answer:

The magnitude of the velocity of the car is 24 m/s .

Step-by-step explanation:

Given : A car's momentum is calculated to be 36000 .

the mass of the car is 1500 kg.

To find: What is the magnitude of the velocity of the car.

Formula used:

Momentum =mass × velocity

Explanation:

We are given that momentum of the car =36000 .

Mass of the car = 1500 kg .

Plugging the given value in the above formula

Momentum =mass × velocity

36000 = 1500 × velocity

On dividing both side by 1500 we get ,

velocity = 24 meter/second

Therefore, The magnitude of the velocity of the car is 24 m/s .

4 0

3 years ago

I need help please help

Alona [7]

Answer:

Figure 2 and Figure 1 are scaled copies

Figure 2 is twice as High and Wide

Figure 4 is 1/4 as tall.

Step-by-step explanation:

3 0

3 years ago

Lerola and her younger sister Kiara are jogging around a circular track. Lerola jogs far enough from the center of the circle th

xxTIMURxx [149]

Circumference of circular track, C = 0.5 miles = 0.5×5280 feet = 2640 feet.

We know, circumference in circle is given by :

$C = 2\pi r$

( Here, r is radius i.e distance of centre from track )

Putting values in above equation :

2 × 3.14 × r = 2640

6.28 × r = 2640

r = 420.38 feet

Therefore, distance between centre and track is 420.38 feet .

Hence, this is the required solution.

4 0

3 years ago