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natima [27]
3 years ago
7

+ 3 )" alt="\sqrt{4}( \sqrt{8} + 3 )" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
dolphi86 [110]3 years ago
4 0
The answer is 11.65685
AfilCa [17]3 years ago
3 0

Answer: 11.65685....

Step-by-step explanation:

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Samantha threw an apple out of a window from the tenth floor of her apartment building.The equation y=-16t^2+120 can be used to
Savatey [412]
If the apple is on the ground, then the height y is 0. To find t, just plug in 0 for y:
0=-16t^{2}+120
-120=-16t^{2}
t^{2} =7.5
t=2.74

So the answer is 2.74 seconds.

Note that taking the square root of 7.5, mathematically, gives you both 2.74 and -2.74. But because we know that time did not go backwards, only the positive value for t was considered.
5 0
3 years ago
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2. Here is triangle ABC.
rusak2 [61]
Triangle abc is a regular triangle
8 0
3 years ago
Urgent help!<br><br> refer to photo
vladimir1956 [14]
The answer is a, a=15
7 0
2 years ago
A 15 ounce alloy containing 30% gold was mixed with an alloy containing 5% gold to get an alloy containing 20% gold. How many ou
Studentka2010 [4]

Answer:

4.5 % alloy

Step-by-step explanation:

Let x = amt of 30% alloy

The resulting total is to be 25 oz, therefore:

(25-x) = amt of 5% alloy:

A typical mixture equation:

.30x + .05(25-x) = .20(25)

.30x + 1.25 - .05x = 5 .30x - .05x = 5 - 1.25

.25x = 3.75

x = 3.75%2F.25

x = 15 oz of 30% alloy required

then

25-15 = 10 oz of 5% alloy:

Check solution

.30(15) + .05(10) = .20(25)

4.5 + .5 = 5

4 0
3 years ago
Help me anyone ASAP snens
azamat

Answer:

thousandths

Step-by-step explanation:

5 0
3 years ago
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