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2 years ago

Pls Help. No fake answers. I need this Done soon, and I am willing to give brainlist to someone who does all of them.

Mathematics

2 answers:

Vladimir [108]2 years ago

6 0

Answer:

I can't them very well to blurry

Step-by-step explanation:

elena-14-01-66 [18.8K]2 years ago

3 0

Answer:

the graphs are blurry, sorry :c

Step-by-step explanation:

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1 .Is the product of two rational numbers irrational or rational? First, make a hypothesis by multiplying two rational numbers.

horsena [70]

Answer:

irrational lol 2 whole years

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Step-by-step explanation:

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3 years ago

What ⇔ bbbbbbbbbbbbb

Burka [1]

Answer:

1 −1. 0. 0. 0. 0. 0. 0. 0. 1 −1. 0. 0. 0. 0. 0. 0.

Step-by-step explanation:

A ⇔ B means A is true if B is true and A is false if B is false.

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3 years ago

Can someone help me with this ?

Gala2k [10]

Answer:

de goes with bc ab goes with fd and angle f is angle A and angle d is angle B

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

QUICK EASY 25 POINTS!!

MAVERICK [17]

Answer:

1. leave the radical symbol and don't try to convert it to a decimal form

2. The approximated value differs from the exact solution and doesn't give a true equation.

3. Depending on the case, if she needs a mathematical answer, the exact value should be used, but for more practical applications, the rounded decimal form would be more usable.

Step-by-step explanation:

The step by step solution to the equation:

$4x^3=756\\x^3=\frac{756}{4} =189\\x=\sqrt[3]{189} \\x=\sqrt[3]{3^3*7} \\x=3*\sqrt[3]{7}$

1.- Exact solution means that if in the final step when solving for x the value of $x^3$ is not a perfect cube, one needs to leave it indicated as a radical expression (with the radical symbol).

in our case, the cubic root of 189 is not a perfect cube. The factor form of 189 is: $3^3*7$ , so there is a perfect cube factor ( $3^3$ ), but the other factor (7) is a prime number. Therefore 3 can get out of the root, while 7 stays inside.

2.- The equation was solved above, in exact form. Now to solve it giving a decimal approximation, we use a calculator to find the cubic root of 7, which is an irrational number with infinite number of decimals, the first of which we type here: $\sqrt[3]{7} = 1.91293118...$

Therefore, the decimal approximation to the solving for x would be:

$x=3*\sqrt[3]{7}=3*1,91293118...=5.73879...=5.74$

Where we rounded to two decimals as requested.

When we replace the exact answer in the original expression, we get a perfect equality:

$4*x^3=756\\4* (3\sqrt[3]{7} )^3=756\\4*3^3*(\sqrt[3]{7} )^3=756\\4*27*7=756\\\\756=756$

While if we use the approximate answer, we get:

$4*x^3=756\\\\4*(5.74)^3=756\\\\4*189.119224=756\\756.476896=756$

which is NOT a true equality.

3.- I would stick with the idea of showing the exact answer as answer to the mathematical equation. but for a practical case (for example she needs to by some material as a result of her equation solving, it would be more practical to take the numerical approximation to the store, instead of a cubic root of a number.

7 0

3 years ago

The domain of both

Margarita [4]

Answer:

The domain of function $h(x)$ is set of all real numbers.