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2 years ago

Choose all of the equations for which x = 1/2 is a solution

Mathematics

2 answers:

Leto [7]2 years ago

6 0

I’m pretty sure the answer is C :)

Nataly [62]2 years ago

3 0

Answer:

C and E

Step-by-step explanation:

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What is half of the product of 8 1/7 and 7 4/5

UNO [17]

First we must convert these mixed numbers to improper fractions:

$8\frac{1}{7}=\frac{57}{7}$

$7\frac{4}{5}=\frac{39}{5}$

So then we need the product of these two numbers. That means to multiply:

$\frac{57}{7}* \frac{39}{5}= \frac{2,223}{35}$

But then we need the value of half of this product. So then let's multiply by one-half:

$\frac{2,223}{35} *\frac{1}{2} =\frac{2,223}{70}$

Then we can convert this from an improper fraction to a mixed number:

$\frac{2,223}{70} =31\frac{53}{70}$

And so this number is half of the product of the initial two numbers.

6 0

3 years ago

I NEED THIS ASAP

notka56 [123]

Answer:

a. 1:4.5, 5. the length is 8. c. first length * 8 = 88. Add lengths = 8+11/12 = 19/12

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Long Division: (3x^4-8x^3-x^2+9x+5) / (x-2) pleaseee answer this

Drupady [299]

3x⁴ = 3x³ • x, and

3x³ (x - 2) = 3x⁴ - 6x³

Subtract this from the numerator to get a remainder of

(3x⁴ - 8x³ - x² + 9x + 5) - (3x⁴ - 6x³) = -2x³ - x² + 9x + 5

-2x³ = -2x² • x, and

-2x² (x - 2) = -2x³ + 4x²

Subtract this from the previous remainder to get a new remainder of

(-2x³ - x² + 9x + 5) - (-2x³ + 4x²) = -5x² + 9x + 5

-5x² = -5x • x, and

-5x (x - 2) = -5x² + 10x

Subtract this from the last remainder to get a new one of

(-5x² + 9x + 5) - (-5x² + 10x) = -x + 5

-x = -1 • x, and

-1 (x - 2) = -x + 2

This gives a new remainder of

(-x + 5) - (-x + 2) = 3

3 does not divide x, so we're done.

So, we have

(3x⁴ - 8x³ - x² + 9x + 5) / (x - 2) = 3x³ - 2x² - 5x - 1 + 3/(x - 2)

7 0

3 years ago

A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work pro

olchik [2.2K]

Answer:

0.756

Step-by-step explanation:

It is given that a machine has four components, A, B, C, and D.

$P(A)=P(B)=0.93, P(C)=0.95,P(D)=0.92$

If these components set up in such a manner that all four parts must work for the machine to work properly.

We need to find the probability that the machine works properly. It means we have to find the value of $P(A\cap B\cap C\cap D)$ .

If two events X and Y are independent, then

$P(X\cap Y)=P(X)\times P(Y)$

Assume the probability of one part working does not depend on the functionality of any of the other parts.

$P(A\cap B\cap C\cap D)=P(A)\times P(B)\times P(C)\times P(D)$

Substitute the given values.

$P(A\cap B\cap C\cap D)=0.93\times 0.93\times 0.95\times 0.92$

$P(A\cap B\cap C\cap D)=0.7559226$

$P(A\cap B\cap C\cap D)\approx 0.756$

Therefore, the probability that the machine works properly is 0.756.

7 0

3 years ago

Can someone help me do this I'm not good at this kind of math

Finger [1]

hope this helps i did this instead of my ap psych work haha

i didnt rlly check my answers so i hope this are correct <3

5 0

3 years ago