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3 years ago

What is the solution to 2x^2 + x + 2 = 0

1 answer:

5 0

x=\frac{-2+2\sqrt{3}}{2},\frac{-2-2\sqrt{3}}{2}x=
2

−2+2√
3

,
2

−2−2√
3

2 Simplify solutions
x=-1+\sqrt{3},-1-\sqrt{3}x=−1+√
3

,−1−√
3

Done
Decimal Form: 0.732051, -2.732051

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What expression using gcf 14xy+8yz

salantis [7]

Answer:

2y(7x + 4z)

Step-by-step explanation:

Consider the common factors of both terms

The gcf of 14 and 8 is 2

The gcf of xy and yz is y

Thus the gcf of both terms is 2y, thus

14xy + 8yz

= 2y(7x + 4z)

6 0

2 years ago

Read 2 more answers

Find the distance between the points (1, 3) and (-7, 2).<br> V65<br> V37<br> V17

Vinvika [58]

Answer:

$\sqrt{65}$

Step-by-step explanation:

distance between 2 points:

$d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\ \\d=\sqrt{(-7-1)^{2}+(2-1)^{2}}\\\\d=\sqrt{(-8)^{2}+(1)^{2}}\\\\d=\sqrt{65}$

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3 years ago

A group of 7 students was asked, "How many hours did you watch television last week?" Here are their responses. 17, 19, 5, 17, 2

Olenka [21]

Answer:

≈ 14.3 hours

Step-by-step explanation:

The mean is calculated as

mean = $\frac{sum}{count}$ = $\frac{17+19+5+17+20+6+16}{7}$ = $\frac{100}{7}$ ≈ 14.3 ( to nearest tenth )

4 0

3 years ago

If 260 is increased by 170%, what is the resulting number?

iragen [17]

Hello!
----------
The answer is 442.
----------
WORK: 170%=1.7*260=442
----------
Hope this helps and have a great day!

4 0

3 years ago

Circumference of 6cm ? help plz <3 heyyy b a e (bet you won't reply :)

Naily [24]

Answer:

If r = 6 cm, the the circumference is c = 2π(6) = 12π cm

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2 years ago