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andrew11 [14]
3 years ago
6

Find the roots of the equation x^2 + 16 = 0.

Mathematics
1 answer:
aksik [14]3 years ago
5 0

Answer:

+4 and -4

Step-by-step explanation:

x² + 16=0

x=-√16

x=-4 or +4

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Nadia has a bag of different colored balloons. Without
Jobisdone [24]

Answer: A.4/25

Step-by-step explanation:

Number of trials that were performed = 50

Number of times a blue balloon was chosen = 22

Number of times a yellow balloon was chosen = 7

Number of times an orange balloon was chosen = 8

Number of times a purple balloon was chosen = 13

The estimated probability of choosing an orange balloon from the bag will be the number of times that an orange balloon was chosen divided by the total number of trials. This will be:

= 8/50

= 4/25

8 0
3 years ago
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If p = 4, q = -3 and r = -2 what is the value of pqr
BaLLatris [955]

pqr

(4) * (-3) * (-2)

-12 * (-2)

24

6 0
3 years ago
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Theresa blended 30 lbs of orange pekoe tea worth $6.00 per pound with 70 lbs of green tea worth of $3.20 per pound. what is the
murzikaleks [220]

$4.04 is the answer.

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70 x $3.20 = $224

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7 0
2 years ago
Find are of shaded region?
castortr0y [4]
Ignoring the triangle first off, it is just a parallelogram. We can find the area with:
A_{P}=b*h=23.8 * 15=357 square ft. (see first diagram).

Next, we need to find the area of the triangle. Its a right angle triangle, so the area can be found by:
A_{T} = \frac{1}{2} wl
where w and l are the lengths of the two smaller sides. We have one, and the longer side (hypotenuse) so we can use Pythagoras' Theorem to find the other small side (see second diagram).
b= \sqrt{ a^{2} - c^{2} } =\sqrt{ 23.8^{2} - 21^{2} }=11.2ft.
Then find the area:
A_{T} =0.5*21*11.2=117.6 square ft.

Take the area of the triangle away from the area of the paralellogram:
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7 0
3 years ago
Use the relationship between the angles in the figure to answer the question Which equation can be used to find the value of x?
dusya [7]

Answer:

x + 49 + 28 = 180

Step-by-step explanation:

The angle adjacent to x on the left is vertically opposite 49° and is congruent.

The 3 angles then lie on a straight line and sum to 180° , that is

x + 49 + 28 = 180

3 0
3 years ago
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