3 years ago

Plz give me correct answers

Mathematics

1 answer:

TEA [102]3 years ago

3 0

(1) 30,489.3 repeating
(2) 70,282
(3) 50,505

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Pleas please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!

KiRa [710]

Answer:

10/9

Step-by-step explanation:

average rate of change in 0≤x≤9

=(3-(-7))/(9-0)=10/9

5 0

3 years ago

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A farmer has 50 acres of corn crops. He harvested 3 acres of his crops in one afternoon. What is the decimal that represents the

kakasveta [241]

The decimal that represents the amount he harvested, is 0.06 because 3/50 is equivalent to 0.06 acres of corn crops.

3 0

3 years ago

I NEED HELP PLS THIS IS DUE IN 3 HOURS

Mariulka [41]

Answer:

Part 1) $x^{2} -2x-2=(x-1-\sqrt{3})(x-1+\sqrt{3})$

Part 2) $x^{2} -6x+4=(x-3-\sqrt{5})(x-3+\sqrt{5})$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

Part 1)

in this problem we have

$x^{2} -2x-2=0$

$a=1\\b=-2\\c=-2$

substitute in the formula

$x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(1)(-2)}} {2(1)}\\\\x=\frac{2(+/-)\sqrt{12}} {2}\\\\x=\frac{2(+/-)2\sqrt{3}} {2}\\\\x_1=\frac{2(+)2\sqrt{3}} {2}=1+\sqrt{3}\\\\x_2=\frac{2(-)2\sqrt{3}} {2}=1-\sqrt{3}$

therefore

$x^{2} -2x-2=(x-(1+\sqrt{3}))(x-(1-\sqrt{3}))$

$x^{2} -2x-2=(x-1-\sqrt{3})(x-1+\sqrt{3})$

Part 2)

in this problem we have

$x^{2} -6x+4=0$

$a=1\\b=-6\\c=4$

substitute in the formula

$x=\frac{-(-6)(+/-)\sqrt{-6^{2}-4(1)(4)}} {2(1)}$

$x=\frac{6(+/-)\sqrt{20}} {2}$

$x=\frac{6(+/-)2\sqrt{5}} {2}$

$x_1=\frac{6(+)2\sqrt{5}}{2}=3+\sqrt{5}$

$x_2=\frac{6(-)2\sqrt{5}}{2}=3-\sqrt{5}$

therefore

$x^{2} -6x+4=(x-(3+\sqrt{5}))(x-(3-\sqrt{5}))$

$x^{2} -6x+4=(x-3-\sqrt{5})(x-3+\sqrt{5})$

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4 years ago

SOS WILL GIVE BRAINLIEST!!

luda_lava [24]

Answer:

180

Step-by-step explanation:

8 0

2 years ago

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Alan is modeling 2.65÷5 how should he exchang the place value block so he can make 5 equal shares

Ira Lisetskai [31]

The answer is 0.53 blocks by 5s.

4 0

3 years ago

Plz give me correct answers ​

Plz give me correct answers