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ExtremeBDS [4]
3 years ago
13

Latisha started with 2 scores: 72% and 89% . Conferm that the average of these two test scores is 80.5%

Mathematics
1 answer:
Alika [10]3 years ago
8 0
(72% + 89%) divided by 2 (the number of total grades)
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I need to solve for x
SVEN [57.7K]
♠Answer♠

Now , X = √( 40² + 9² )

√(1600 + 81)

√1681

41

That Is , option (b)

#DavidUniversal
6 0
3 years ago
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Hey can you please help me posted picture of question
Shalnov [3]
Answer:
x³ - 3x² - 18x

Explanation:
Before we begin, remember the following:
xᵃ * xᵇ = xᵃ⁺ᵇ

Now, for the given:
To solve thus question, we will simply multiply each term from the first bracket by each term from the second bracket and then combine like terms to get the final answer.

This can be done as follows:
(x + 3)(x² - 6x)
x(x²) + x(-6x) + 3(x²) + 3(-6x)
x³ - 6x² + 3x² - 18x
x³ - 3x² - 18x

Hope this helps :)
7 0
3 years ago
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Find the cosine of L
aleksandr82 [10.1K]

Answer:

0.42

Step-by-step explanation:

use the attached as reference

recall that for a right (90°) triangle, with any acute angle θ,

cos θ = length of adjacent side / length of hypotenuse

in our case, for angle I, the adjacent side is HI = 36 units and the hypotenuse is IJ = 85 units

by the above formula,

cos I = length of adjacent side / length of hypotenuse

= 36 / 85

= 0.42353

= 0.42 (rounded to nearest hundredth)

4 0
3 years ago
15 POINTS PLEASE HELP
dezoksy [38]

Answer:

20

Step-by-step explanation:

4*2+6*2=20

3 0
3 years ago
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If the triangles are congruent,
harkovskaia [24]

Answer:

x = 3

Step-by-step explanation:

If the triangles are congruent then

4x + 1 = 13

4x = 12

x = 3

5 0
4 years ago
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