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marin [14]
3 years ago
12

HELP ME ASAP PLEASE?!? Classify the following triangle as acute, obtuse, or right.

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0

Answer:

obtuse

Step-by-step explanation:

hope it helps. :)

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Help ASAP please!!!!!!!!!​​
Katena32 [7]

Answer:

Δ JKL is similar to Δ ABC ⇒ D

Step-by-step explanation:

Similar triangles have equal angles in measures

In ΔABC

∵ m∠A = 15°

∵ m∠B = 120

∵ The sum of the measures of the interior angles of a Δ is 180°

∴ m∠A + m∠B + m∠C = 180°

→ Substitute the measures of ∠A and ∠B

∵ 15 + 120 + m∠C = 180

→ Add the like terms in the left side

∴ 135 + m∠C = 180

→ Subtract 135 from both sides

∴ 135 - 135 + m∠C = 180 - 135

∴ m∠C = 45°

The similar Δ to ΔABC must have the same measures of angles

If triangles ABC and JKL are similar, then

m∠A must equal m∠J

m∠B must equal m∠K

m∠C must equal m∠L

∵ m∠J = 15°

∴ m∠A = m∠J

∵ m∠L = 45°

∴ m∠C = m∠L

∵ m∠J + m∠K + m∠L = 180°

→ Substitute the measures of ∠J and ∠L

∵ 15 + m∠K + 45 = 180

→ Add the like terms in the left side

∴ 60 + m∠K = 180

→ Subtract 60 from both sides

∴ 60 - 60 + m∠K = 180 - 60

∴ m∠K = 120°

∴ m∠B = m∠K

∴ Δ JKL is similar to Δ ABC

6 0
3 years ago
Does the table represent a linear or an exponential function? Explain.
leva [86]

we can use MS excel to plot the given data and check whether the graph's trendline has an  R-squared of 1. The graph does not fit into a line but fits into an exponential function. The trendline's equation is equal to y = 4e^1.3863x where R squared is equal to 1
6 0
3 years ago
Question 3
zlopas [31]

Answer:

Area = 19.05 feet squared

Step-by-step explanation:

By applying sine rule in ΔABC,

sin(∠CAB) = \frac{\text{Opposite side }}{\text{Hypotenuse}}

sin(60°) = \frac{BC}{AC}

\frac{\sqrt{3}}{2}=\frac{BC}{4}

BC = 2√3

Area of a parallelogram is given by the formula,

Area = Base × Height

        = 5.5 × 2√3

        = 11√3

        = 19.05 ft²

Therefore, answer is Area = 19.05 ft squared.

3 0
3 years ago
A rectangle has perimeter of 26 cm, and one of its sides has a length of 5cm. Sketch the rectangle and label all the side length
kipiarov [429]
Hopefully that helps. :)

8 0
3 years ago
Arianna deposits $500 in an account that pays 1.3% interest, compounded semi-annually. How much is in the
Alika [10]

Answer:

<u>1</u><u>•</u><u>3</u><u> </u> × $500

100

<u>1</u><u>.</u><u>3</u><u> </u><u>×</u><u> </u><u>1</u><u>0</u><u> </u> × $500

100× 10

<u>1</u><u>3</u><u> </u> × $500

1000

=$6.5 semi annually

end of two years.....

6.5 × 4

=$26

in account.....

$500+$26

=$526

5 0
2 years ago
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