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klasskru [66]
3 years ago
9

The radius of a circle is 3 miles. What is the circle's diameter?

Mathematics
2 answers:
mario62 [17]3 years ago
7 0

Answer: d= r(2)

=3(2)= 6

Step-by-step explanation:

Gemiola [76]3 years ago
4 0

Answer: 6 miles

Step-by-step explanation:

The diameter is 2x the radius

2 x 3 = 6

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The vertices of a triangle are given. Determine whether the triangle is an acute triangle, an obtuse triangle, or a right triang
adelina 88 [10]

Answer:

Obtuse triangle

Step-by-step explanation:

Given are the vertices of a triangle

Let A (-4, 0, 0),B (0, 0, 0),C(7, 2, 6)

Let us find angles between AB, BC and CA

AB = (4, 0,0): BC = (7,2,6) : CA = (11, 2,6)

Cos B = \frac{AB.BC}{|AB||BC|} \\

B = arc cos \frac{AB.BC}{|AB||BC|} \\=137 deg 54 min 7 sec

Similarly

A=29 deg 53 min 53 seconds

C = 12 deg 12 min 3 sec

Obtuse triangle since one angle > 90 degrees

5 0
3 years ago
Because of the rainy season, the depth in a pond increases 3% each week. Before the rainy season started, the pond was 10 feet d
kari74 [83]
After first week pond will be:
10 + 10* 0.03 = 10*(1.03) feet deep
after second week it will be:

10*(1.03) + 10*(1.03)*0.03 = 10*(1.03)^2

from this we can conclude that after x week its will be:
10*(1.03)^x

Note that when second week starts our starting pond is already greater by 3%. every week we add 3% of prevous weeks size of pond

for x = 8 we get
f(x) = 10*(1.03)^8 = 12.66 or rounded 13 feet

Answer is D.

5 0
3 years ago
For what values of b, the equation x^2−ax+b=0 has a solution for any value of a? PLEASE I NEED IT SOON!
Rasek [7]
I’m not sure about the wording of the question, but wouldn’t it be all real numbers?
3 0
3 years ago
Read 2 more answers
Help and ill give brainlist
zimovet [89]

Answer:

first one is 7

Step-by-step explanation:

6 0
3 years ago
2/4 + 3/9 in Modeling Fractions?
horrorfan [7]

Answer: 13/12

Step-by-step explanation:

Reduce the fraction 3/9 to the lowest terms by extracting and canceling out 3.

The least common multiple of 4 and 3 is 12. Convert 3/4 and 1/3 to fractions with denominator 12.

Since 9/12 and 4/12 have the same denominator, add them by adding their numerators.

Add 9 and 4 to get 13.

5 0
3 years ago
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