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2 years ago

Question 3.. will give brainliest

Mathematics

2 answers:

Triss [41]2 years ago

6 0

Answer:

-0.50

Step-by-step explanation:

4.75 + (-5.25)

Using a number line you can show the sum of points 4.75 and -5.25 is -0.50

1) Starting at 4.75 draw an arrow 5.25 units in the negative direction, arriving at -0.5.

Anna11 [10]2 years ago

3 0

Answer:

-0.5

Step-by-step explanation:

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Write a polynomial function with the real zeros -3, 0, and 3.

suter [353]

$f(x)=x(x-3)(x+3)$

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1 year ago

2x -3y=8 solve for y

brilliants [131]

$2x-3y=8\ \ \ \ \ \ |subtract\ 2x\\\\-3y=8-2x\ \ \ \ \ \ \ \ \ |:-3\\\\y=\frac{8-2x}{-3}$

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3 years ago

What kind of decimal is 0.05? How do you know?

solniwko [45]

Answer:

0.05 is a terminating decimal

Step-by-step explanation:

0.05 is a terminating decimal because it has finite digits.

3 0

2 years ago

Read 2 more answers

Pls help me solve this question, also include step by step calculation ya. Thks

sp2606 [1]

$\displaystyle\\Answer:\ x=\sqrt{2}\ \ \ \ \ x=-\sqrt{2}\ \ \ \ \ x=\frac{ln5}{2}$

Step-by-step explanation:

$5x^2-x^2e^{2x}+2e^{2x}=10$

$Let:\ x^2=t \ \ \ \ \ e^{2x}=v\\Hence,\\5t-tv+2v^2=10\\5t-tv+2v^2-10=10-10\\5t-tv-10+2v^2=0\\t(5-v)-2(5-v)=0\\(5-v)(t-2)=0\\5-v=0\\5-v+v=0+v\\5=v\\5=e^{2x}$

Prologarithmize both parts of the equation:

$ln5=lne^{2x}\\ln5=2x*lne\\ln5=2x*1\\ln5=2x\\$

Divide both parts of the equation by 2:

$\displaystyle\\x=\frac{ln5}{2}$

$t-2=0\\t-2+2=0+2\\t=2\\x^2=2\\x=\sqrt{2} \\x=-\sqrt{2}$

6 0

1 year ago

A smart-phone is thrown upwards from the top of a 384-foot building with an initial velocity of 32 feet per

Anna007 [38]

Answer:

When t = 4

Step-by-step explanation:

The phone will hit the ground when h = 0.

$16t^2 + 32t + 384 =0 \\ \\ t^2 + 2t + 24=0 \\ \\ (t+6)(t-4)=0 \\ \\ t=-6, 4$

However, as time cannot be negative, we know the answer is when t = 4.

5 0

2 years ago