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arsen [322]
3 years ago
14

Pls help me :,))) ASAP Help Pls

Mathematics
1 answer:
MaRussiya [10]3 years ago
6 0

Answer:

26.87877

Step-by-step explanation:

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12. What is the value of x?
Vanyuwa [196]

Answer:

x=3.75\ units

Step-by-step explanation:

we know that

(AE)(EB)=(CE)(ED) ----> by Intersecting Chords Theorem

substitute the given values

(6)(5)=8x

solve for x

x=\frac{30}{8}

x=3.75\ units

5 0
3 years ago
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John can mow a lawn in 80 minutes. Rocky can mow the same lawn in 120 minutes. How long does it take for both John and Rocky to
mario62 [17]

Answer: it will take them 48 minutes.

Step-by-step explanation:

John can mow a lawn in 80 minutes. This means that the rate at which he moans the lawn per minute is 1/80

Rocky can mow the same lawn in 120 minutes. This means that the rate at which Rocky can mow the same lawn per minute is 1/120

If they work together, they would work simultaneously and their individual rates are additive. This means that their combined working rate would be

1/80 + 1/120 = 200/9600 = 1/48

Assuming it takes t hours for both of them to clean the room working together, the working rate per hour would be 1/t. Therefore,

1/48 = 1/t

t = 48 minutes

4 0
3 years ago
PLEASE HELP!!!
horsena [70]
Answer is B
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6 0
3 years ago
Similar triangles are congruent.<br> a. - always<br> b. - sometimes<br> c. - never
irina1246 [14]
<span>Two triangles with two sides and a non-included angle equal may or may not be congruent. If two angles on one triangle are equal, respectively, to two angles on another triangle, then the triangles are similar, but not necessarily congruent.</span>
5 0
2 years ago
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You drink a beverage with 120 mg of caffeine. Each hour, the caffeine in your system decreases by about 12%. How long until you
uysha [10]

Answer:

  19.44 hours, about 19 hours 26 minutes

Step-by-step explanation:

The exponential equation that describes your caffeine level can be written as ...

  c(t) = 120·(1 -0.12)^t . . . . where t is in hours and c(t) is in mg

We want to find t for c(t) = 10, so ...

  10 = 120(0.88^t)

  10/120 = 0.88^t . . . . . . . divide by 120

  log(1/12) = t·log(0.88) . . . take logarithms

  t = log(1/12)/log(0.88) ≈ 19.4386

It will take about 19.44 hours, or 19 hours 26 minutes, for the caffeine level in your system to decrease to 10 mg.

3 0
3 years ago
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