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Ymorist [56]
3 years ago
8

Pleaseeee help im confused best answer will get brainliest.

Mathematics
2 answers:
Komok [63]3 years ago
7 0

Answer:

9d = the cost of the tennisballs

Step-by-step explanation:

GenaCL600 [577]3 years ago
5 0

Answer:

3d + 4d + 2d

9d

9d = total amount that Star spent

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Round your answer to the nearest hundredth BC=?
miskamm [114]

Answer:

BC = 1.71

Step-by-step explanation:

well to start we have to know the relationship between angles, legs and the hypotenuse  in a right triangle

α = 70°

a: adjacent  = BC

h: hypotenuse = 5

sin α = o/h

cos α= a/h

tan α = o/a

we see that it has (angle, adjacent, hypotenuse)

we look at which meets those data between the sine, cosine and tangent

is the cosine

cos α = a/h

Now we replace the values ​​and solve

cos 70 = a/5

0.34202 = a/5

0.34202 * 5 = a

1.7101 = a

round to the neares hundredth

a = 1.7101 = 1.71

BC = 1.71

7 0
3 years ago
What is the square root of -1?
mojhsa [17]

Answer:

Step-by-step explanatidk

ion:

4 0
3 years ago
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The effect of global climate change on the US economy was investigated by researchers at Carnegie Mellon University. To gauge th
AURORKA [14]

Answer:

Please see the attached file for the complete answer.

Step-by-step explanation:

Download pdf
4 0
3 years ago
Please help!!!!!! 50 points!!
lesantik [10]

Area of first rectangle= 5×2=10units

Area of second rectangle= 3×2= 6 units

Area of third rectangle = 5×2= 10 units

Now,

Total area of figure = 10+6+10= <u>26units✓</u>

8 0
3 years ago
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Solve for e.<br><br><br>9e + 4 = -5e + 14 + 13e
sladkih [1.3K]

Answer:

10.

Step-by-step explanation:

9e + 4 = -5e + 14 + 13e

9e + 5e - 13e = 14 - 4

e = 10

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2 years ago
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