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3 years ago

2 x 10 i need help pls

Mathematics

2 answers:

vitfil [10]3 years ago

8 0

Answer:

Step-by-step explanation:

love history [14]3 years ago

8 0

2 x 10 = 20

Geniussss

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Find the exact value.<br> sin 9<br> 4<br> Type + or -

Ne4ueva [31]

Step-by-step explanation:

$\sin( \frac{9\pi}{4} )$

$0.1230573409$

6 0

2 years ago

According to the Rational Root Theorem, the following are potential roots of f(x) = 60x2 – 57x – 18. Which is an actual root of

emmainna [20.7K]

Answer: The correct option is third, i.e., $-\frac{1}{4}$ .

Explanation:

The given function is,

$f(x)=60x^2-57x-18$

The Rational Root Theorem states that the rational roots are in the form of,

$r=\frac{\text{factors of constant term}}{\text{factor of leading coefficient}}$

These rational roots are possible rational roots not the actual roots of f(x).

For actual roots of f(x), the value of the function is 0.

Put each value of x from the option in the function, if we get the value of f(x) is 0, then that value is the actual root of f(x).

Put x=3.

$f(3)=60(3)^2-57(3)-18=351\neq 0$

Put x=6

$f(6)=60(6)^2-57(6)-18=1800\neq 0$

Put $x=-\frac{1}{4}$

$f(-\frac{1}{4})=60(-\frac{1}{4})^2-57(-\frac{1}{4})-18=0$

Put $x=-\frac{6}{5}$

$f(-\frac{6}{5})=60(-\frac{6}{5})^2-57(-\frac{6}{5})-18=136.8\neq 0$

Only for $x=-\frac{1}{4}$ the value of function is 0, therefore the correct option is third.

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3 years ago

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Write... the number 7 as a fraction with the denominator 3.

Artist 52 [7]

Answer:

$\huge\boxed{7=\dfrac{21}{3}}$

Step-by-step explanation:

$7=\dfrac{7}{1}=\dfrac{7\cdot3}{1\cdot3}=\dfrac{21}{3}$

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3 years ago

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Find the difference of 3/4 and 1/28.

adell [148]

3/4 = 21/28 after multiplying top and bottom of 3/4 by the value 7

3*7 = 21 and 4*7 = 28

The goal is to get 3/4 into an equivalent fraction that has 28 as the denominator.

------------------------------------

So 3/4 - 1/28 is the same as 21/28 - 1/28

The denominators are the same. We subtract the numerators to get 21-1 = 20. The denominators stay the same at 28

We have

21/28 - 1/28 = (21-1)/28 = 20/28

Now reduce 20/28 as much as possible. Divide both parts by the GCF 4

20/4 = 5

28/4 = 7

The final answer is 5/7

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3 years ago

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Answer:

your answer is A darling

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