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2 years ago

What is the answer to 4/5 - 3/4?

Mathematics

2 answers:

Lorico [155]2 years ago

8 0

Answer: 1/20

Step-by-step explanation:

In this question we will use LCM(least common multiple)

4/5-3/4

16-15/20

1/20

azamat2 years ago

7 0

Answer: 1/20

Step-by-step explanation:

you need to find a common denominator (least common multiple of both denominators)

4/5 - 3/4

16/20 - 15/20

1/20

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Consider the function f(x) = x^3 - 7x^2 - 2x + 14

mars1129 [50]

Answer:

There are 3 zeros, which are:

$x=7,\:x=-\sqrt{2},\:x=\sqrt{2}$

Step-by-step explanation:

Given the function

$f\left(x\right)\:=\:x^3\:-\:7x^2\:-\:2x\:+\:14$

To get the zeros of $f(x)$ , set $y$ or $f(x) =0$

$0=x^3-7x^2-2x+14$

$x^3\:-\:7x^2\:-\:2x\:+\:14=\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)$

$\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)=0$

Using the zero factor principle:

$\mathrm{ \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$x-7=0\quad \mathrm{or}\quad \:x+\sqrt{2}=0\quad \mathrm{or}\quad \:x-\sqrt{2}=0$

solving

$x-7=0$

$x=7$

$x+\sqrt{2}=0$

$x=-\sqrt{2}$

$x-\sqrt{2}=0$

$x=\sqrt{2}$

Therefore, there are 3 zeros, which are:

$x=7,\:x=-\sqrt{2},\:x=\sqrt{2}$

8 0

2 years ago

Help me pls number 4 I’m giving brainlest

ArbitrLikvidat [17]

Answer:

hi:) you can use an app called photomath, you just take a picture of any math problem and it gives you the answer and shows all the work:) thats what I use.

4 0

2 years ago

5. Find the triangle similar to AABC at the right.

Alex Ar [27]

Answer:

the answer is b

Step-by-step explanation:

7 0

2 years ago

PLSSS ANSWER 50 points

erma4kov [3.2K]

Answer:

Step-by-step explanation:

90 % 5 = 18 so A would measure 90º

8 0

2 years ago

Read 2 more answers

I will mark you as the brainiest if you get this correct<br> Thx so much xxx

solong [7]

Answer:

A= 168 minutes or 2 hours and 48 minutes.

B= 3 tyres

Step-by-step explanation:

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2 years ago