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MissTica
3 years ago
13

Need help with these plzz wen i get all the correct answers i will friend u and give u 42 more points.

Mathematics
2 answers:
nikklg [1K]3 years ago
7 0

Answer: 99

Step-by-step explanation:

1/2 x 18 x 11

= 99

sveta [45]3 years ago
5 0

Answer:

By using pythagoras formula

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Step-by-step explanation:

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Gregg subtracted some number x from 47, then multiplied the result by two, subtracted 15 and got 45. What was Gregg's number?
irinina [24]
Work in reverse.

45 + 15= 60. 60/2= 30. 30 + x = 47.

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Solve the right triangle.<br> Round your answers to the nearest tenth.
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5 0
3 years ago
Read 2 more answers
In right triangle DEF, ∠E is a right angle, m∠D=26∘, and DF=4.5.
jok3333 [9.3K]

Answer:

The measurement of EF is 1.98 units

Step-by-step explanation:

In Δ DEF

∵ m∠E = 90°

∴ FD is the hypotenuse of the triangle

∵ m∠D = 26°

∵ EF is opposite to angle D

- We can use the sine ratio to find it

∵ sin D = \frac{EF}{FD} ⇒ (opposite side / hypotenuse)

∵ FD = 4.5 units

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The measurement of EF is 1.98 units

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3 years ago
How many thirds are in 3 hours?​
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There are 60 thirds in three hours
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3 years ago
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