PLZ HELP ME HURRY!

1 answer:

7 0

D, because she wants to study more than 1 1/4 hours. > is the greater sign, It can't be C because there is not 30 hours in a day, It can't be B because she wants to study more than 1 1/4 hours not equal to it. It wouldn't A because thats the less than sign.

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Find the zeros of y = x + 6x- 4 by completing the square.

dsp73

Answer:

$\large\boxed{x=-3\pm\sqrt{13}}$

Step-by-step explanation:

$(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\x^2+6x-4=0\qquad\text{add 4 to both sides}\\\\x^2+2(x)(3)=4\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=4+9\\\\(x+3)^2=13\Rightarrow x+3=\pm\sqrt{13}\qquad\text{subtract 3 from both sides}\\\\x=-3\pm\sqrt{13}$

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3 years ago

The daltons completed 30% of their 2140-mile trip the first day

Ugo [173]

To figure out how many miles the Daltons traveled the first day you times 2140 miles and 30 percent.
So 2140 x .30 = 642
They traveled 642 miles the first day.

To figure out how many miles they still have to travel you subtract your original miles (2140) from how many miles they have already traveled (642).
So 2140 - 642 = 1498
They have 1498 miles to still travel.

4 0

2 years ago

Read 2 more answers

I need help with this

emmasim [6.3K]

Answer:

31.4

Step-by-step explanation:

2x3.14x5=31.4

(2x3.14xRadius)

Please Give Me Brainliest lol

7 0