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natita [175]
3 years ago
9

52 > 43 + w

Mathematics
2 answers:
Hatshy [7]3 years ago
5 0

Answer:

7 yes

4 yes

13 no

9 no

Step-by-step explanation:

For each one, just substitute the number in as w in the equation they gave you and then check if it is less than 52.

7 yes because 52 > 43 + 7.

4 yes because 52 > 43 + 4.

13 no because 52 < 43 + 13.

9 no because 52 = 43 + 9 and 52 isn't less than 52.

Lera25 [3.4K]3 years ago
3 0

Answer:

yes

yes

no

no

Step-by-step explanation:

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What are the steps to solve the quadratic equation x^2+4x-6=0
makvit [3.9K]

METHOD\ 1:\\\\Use:\\\\(*)\qquad(a+b)^2=a^2+2ab+b^2\\---------------------\\\\x^2+4x-6=0\qquad\text{add 6 to both sides}\\\\x^2+4x=6\\\\x^2+2(x)(2)=6\qquad\text{add}\ 2^2\ \text{to both sides}\\\\\underbrace{x^2+2(x)(2)+2^2}_{(*)}=6+2^2\\\\(x+2)^2=6+4\\\\(x+2)^2=10\Rightarrow x+2=\pm\sqrt{10}\qquad\text{subtract 2 from both sides}\\\\\boxed{x=-2-\sqrt{10}\ \vee\ x=-2+\sqrt{10}}

METHOD\ 2:\\\\\text{use the quadratic formula:}\\\\ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\if\ \Delta>0,\ \text{the equation has two solutions}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\if\ \Delta=0,\ \text{then the equation has one solution:}\ x=\dfrac{-b}{2a}\\\\if\ \Delta

x^2+4x-6=0\\\\a=1,\ b=4,\ c=-6\\\\\Delta=4^2-4(1)(-6)=16+24=40>0\\\\\sqrt\Delta=\sqrt{40}=\sqrt{4\cdot10}=\sqrt4\cdot\sqrt{10}=2\sqrt{10}\\\\x_1=\dfrac{-4-2\sqrt{10}}{2(1)}=\dfrac{-4}{2}-\dfrac{2\sqrt{10}}{2}=-2-\sqrt{10}\\\\x_2=\dfrac{-4+2\sqrt{10}}{2(1)}=\dfrac{-4}{2}+\dfrac{2\sqrt{10}}{2}=-2+\sqrt{10}

7 0
3 years ago
What is the speed of the ball if it travels 19km in 19min
kifflom [539]
Speed=distance/time

s=19km/19min=1km/min
8 0
3 years ago
Helpp me solve it and pls explain <br><br> tyyy
Vikentia [17]

Answer:

2=124  124/2

4=248 248/4

5=310 310/5

8=496 496/8

Step-by-step explanation:

40 + 22 = 62

62 x 2 = 124

62 x 4 = 248

62 x 5 = 310

62 x 8 = 496

i think

8 0
3 years ago
What is 4+5 devices by two
icang [17]

The equation can be written as:

4 + 5 / 2

Remember to follow PEMDAS.

4 + 5 / 2

4 + 2.5

6.5

Best of Luck!

3 0
3 years ago
Read 2 more answers
PLZ PLZ HELP
iren2701 [21]

It is the third one on the graph.

5 0
3 years ago
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