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AlladinOne [14]
3 years ago
8

What is this vertex of the graph ?

Mathematics
1 answer:
mina [271]3 years ago
6 0

Answer:

(2,4)

Step-by-step explanation:

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Find roots of 4x^2-2x+9
Korolek [52]

discriminant= b^2-4ac= (-2)^2-4(4)(9)= -140<0

since discriminant <0, graph is always positive, x has no real roots

4 0
3 years ago
Please help! Will mark the brainliest!
dimaraw [331]
(f+g)(5)=33 is the answer
3 0
3 years ago
78 is what percent of 110
irinina [24]

Answer: 70.909090909091%

Step-by-step explanation: Reading through the problem we have <em>78 is</em>, that's 78 equals, <em>what percent</em>, x/100, <em>of 110</em>, times 110.

It's important to understand that <em>percent</em> means over 100 so what percent would simply mean <em>x/100</em> or any variable but I will be using x.

So we have the equation 78 = \frac{x}{100} *110

So cross canceling the 110 and 100 to 11 and 10, we have 78 = \frac{11x}{10}

Multiply both sides by 10 to get rid

of the fraction and we have 780 = 11x.

Now divide both sides by 11 and 70.909090909091 = x.

So, 78 is 70.909090909091% of 110.

Work is attached in the image provided.

8 0
3 years ago
Factor Completely: x2 − 7x + 6
Arte-miy333 [17]

Answer:

(x-6)(x-1)

Step-by-step explanation:

I am sure about this. You can use to solve it too.

5 0
2 years ago
Read 2 more answers
8x = 2y + 5 3x = y + 7 Solve the system of equations by substitution.
jasenka [17]
<span>3x = y + 7
</span><span> y =3x-7
</span>
<span>8x = 2y + 5
</span><span>8x = 2(3x-7) + 5
8x=6x-14+5
8x-6x=-9
2x=-9
x=-4.5

</span><span>8x = 2y + 5
</span>8(4.5)=2y+5
36=2y+5
2y=31
y=15.5
8 0
3 years ago
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