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Semenov [28]
3 years ago
9

For questions 1 - 3, find the sum.

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
4 0

Answer:

Step-by-step explanation:

5 9/13=74/13      i add the whole into the fraction

74/13+74/13= 148/13= 11 5/13

choice C

Sati [7]3 years ago
3 0

Answer:

its 100% B

Step-by-step explanation:

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If sin tetha=root3/2, what is cos tetha?​
Minchanka [31]

Answer:

The value of cos Ф is ± \frac{1}{2}

Step-by-step explanation:

There are important rules for sin Ф and cos Ф

  • sin²Ф + cos²Ф = 1
  • sin²Ф = 1 - cos²Ф
  • cos²Ф = 1 - sin²Ф

∵ sin Ф = \frac{\sqrt{3}}{2}

∴ sin²Ф = (\frac{\sqrt{3}}{2})^{2}

∴ sin²Ф = \frac{3}{4}

→ By using the third rule above

∵ cos²Ф = 1 - sin²Ф

∴ cos²Ф = 1 - \frac{3}{4}

∴ cos²Ф = \frac{1}{4}

→ Take square root for both sides

∴ cos Ф = ± \frac{1}{2}

∴ The value of cos Ф is ± \frac{1}{2}

6 0
3 years ago
tomas bought a bottle of shampoo that held 10.5 fluid ounces. he uses 1/16 of the shampoo every time he washes his hair. how man
Airida [17]


1) 10.5 = 10 1/2 = 21/2 ounces in bottle

2) 21/2 * 1/16 = 21/32 ounces one use

3) 21/32 * 6 = 63/16 ounces six use

4) 21/2 - 63/16 = 168/16 - 63/16 = 105/16 = 6 9/16 ounces left

8 0
3 years ago
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Find -15(-8) <br><br> A. 120 <br> B. 80<br> C. -23<br> D. -120
podryga [215]

Answer:

A

Step-by-step explanation:

-15(-8)

=+(15*8)

=120

So, the ans is A

4 0
3 years ago
Create a new scenario to reflect a change in cell b9 to a value of 0.01 name the scenario low cola.
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6 0
3 years ago
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Point U is located at (1,-4) on the coordinate plane. Point U is reflected on
svetlana [45]

Given :

A point U located at (1,-4) on the coordinate plane.

To Find :

The reflection of point U on x-axis.

Solution :

Reflection of any point ( h , k ) on x-axis is ( h , - k ) .

So , the reflection of point U i.e ( 1 , -4 ) is ( 1 , 4 ) .

Therefore , the ordered pair describes the location of U' is ( 1 , 4 ).

Hence , this is the required solution .

4 0
3 years ago
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