1. Isosceles Triangle The two equal sides of an isosceles triangle are each 42

centimeters. If the base measures 30 centimeters, find the height and the

measure of the two equal angles. Round your answer to the nearest tenth.

Answers

Answer 1

Answer:

1. H = 29 cm

2. θ = 44°

Step-by-step explanation:

1. We can find the height of the triangle by considering the isosceles triangle as two right triangles. The height can be found by using Pitagoras:

[tex] L^{2} = H^{2} + B^{2} [/tex]

Where:

L: is the sides of the isosceles triangle = 42 cm

B: is the base = 30 cm

H: is the height =?

Then, the height is:

[tex] H = \sqrt{L^{2} - B^{2}} = \sqrt{(42 cm)^{2} - (30 cm)^{2}} = 29.4 cm = 29 cm [/tex]

2. The two equal angles (θ) can be found using the following trigonometric identity:          

[tex] cos(\theta) = \frac{B}{L} [/tex]

[tex] \theta = cos^{-1}(\frac{30 cm}{42 cm}) = 44.4^{\circ} = 44^{\circ} [/tex]

Hence, the two equal angles are 44°.

I hope it helps you!  


Related Questions

A price floor of $25 per unit will result in a ?

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Answer:

HI INEED HELP TOO

Step-by-step explanation:

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Answer:

a) This expression is simply the average of both of their hours for a full year.

b) Honestly, I'm not sure, but mathematically, its  [tex]\frac{Beth's -hours}{Arjun's-hours}[/tex], so the hours cancel out and you get the ratio of their yearly hours? Idek

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c) Similar to a), this is an average of their yearly income.

A college has a total of 107 teachers 23 more female teachers than male teachers

What proportion of the teachers are female? use n as the unknown

Answers

Answer:

Female reachers = 65

Step-by-step explanation:

Given that,

Total teachers in a college = 107

Let there are n male teachers.

Female reachers = n+23

ATQ,

n+n+23 = 107

2n = 107-23

2n = 84

n = 42

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= 65

Hence, there are 65 female teachers.

If point N, with coordinates (1, 4) is translated to point N', with coordinates (-1,-1).
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two units left and three units down
two units left and five units down
one unit left and five units down

Answers

it should be 2 units left and 4 units up

At a grocery store a 12 pack of 10.75 ounce cans of soup is sold for 15.65 there are 128 oz in a gallon determine the price per gallon round to the nearest cent

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MY THROAT CRAZYYYYYY

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Answer:

c

Step-by-step explanation:

Answer:b

Step-by-step explanation:

Due to the explanation here

lol please help me !

Answers

Answer:  (a + 2)(a - 2)  which is the first answer choice

=========================================================

Explanation:

Use the difference of squares factoring rule which is x^2 - y^2 = (x+y)(x-y)

In this case, x = a and y = 2

x^2 - y^2 = (x+y)(x-y)

a^2 - 2^2 = (a+2)(a-2)

a^2 - 4 = (a+2)(a-2)

Find the solutions to x2 = 18.
O A.
- +32
B. X = +63
O c. X = +376
O D. X = +2/3

Answers

Answer:

what in the math equations is this???

Step-by-step explanation:

solve this pleaseI will really appreciate it.

Answers

Sorry but I don’t know

The sum of the squares of two positive numbers is 41 and the difference of the two squares of the numbers is 9. Find the numbers. If there is more than one pair, use the "or" button.

Answers

Answer:

Step-by-step explanation:

41

1. (a+2)²
2. (a-5)²
3. 3(a+b)
4. (a+2)(a-2)
5. (ab)⁴
6.- 3a(2a + 2b)
7. (2a-3)(a +2)
8. (8a+10b)(8a-10b)
9. (2a-3)³
10.-9a(3a+4b)​

Answers

Answer:

a² + 4a + 4

Step-by-step explanation:

(a + 2) ² = (a + 2) ( a + 2)

= a ( a + 2) + 2 ( a + 2)

= a² + 2a + 2a + 4

= a² + 4a + 4

huh? sorry idont know the answer

What is the apparent solution to this system of equations?
(Write your answer as an ordered pair)
3
N
1
-2
2
3
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Answers

the answer is 123456 okay

The square root of 83 can be plotted on the number line below,
+
8.5 8.6 8.7 8.8 8.9 9,0 9,1 9,2 9,3 94 9,5
Use the drop-down menus to explain where 83 should be plotted on the number line, Click the
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The square root of 83 to the nearest tenth is Choose.... · The square root of 83 to the
nearest hundredth is Choose... On the number line above, 83 should be plotted
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sdUse the drop-down menus to explain where 83 should be plotted on the number line, Click the

Step-by-step explanation:

Answer: 9.1, 9.11, Right, 9.1

Step-by-step explanation:

URGENT PLZZ HELP!!!!

Answers

Answer: 1

Step-by-step explanation:

Since 2 ≥ 2, we only need to look at [tex]x^3-9x^2+27x-25[/tex].

Plugging in 2 for x in this, we get:

[tex]2^3-9(2)^2+27(2)-25[/tex]

[tex]8 - 36 + 54 - 25[/tex]

[tex]1[/tex]

Hence, the answer is A.

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Answers

the perimeter eighteen
No the perimeter is 36

Help me please!!
15 points!

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Answer:

Hi Hi really sorry may i get some points i need them to give it to other people cuz some people want points, ik its not the answer u wanted sorry but hope u get the answer soon!

Step-by-step explanation:

According to the Stack Overflow Developers Survey of 20184, 25.8% of developers are students.The probability that a developer is a woman given that the developer is a student is 7.4%,and the probability that a developer is a woman given that the developer is not a student is76.4%. If we encounter a woman developer, what is the probability that she is a student

Answers

Answer:

0.0326 = 3.26% probability that she is a student.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Woman developer

Event B: Student

Probability that the developer is a woman:

7.4% of 25.8%(students).

76.4% of 100 - 25.8 = 74.2%(not students). So

[tex]P(A) = 0.074*0.258 + 0.764*0.742 = 0.58598[/tex]

Student and woman developer.

7.4% of 25.8%(students), so

[tex]P(A \cap B) = 0.074*0.258 = 0.019092[/tex]

If we encounter a woman developer, what is the probability that she is a student

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.019092}{0.58598} = 0.0326[/tex]

0.0326 = 3.26% probability that she is a student.

A bag contains 5 yellow, 6 red, and 4 green marbles. Two marbles are drawn. The first is replaced before the second is drawn. A random variable assigns the number of green marbles to each outcome. Calculate the expected value of the random variable.
a.0.76 c.0.27 b. 1.07 d. 0.53​

Answers

Answer:

53

Step-by-step explanation:

Multiplicative inverse of 345

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the answer is 0.00289855

Answer:

-0.00289855.

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Answer:

10000

Step-by-step explanation:

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6yx

Step-by-step explanation:

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Find the value of x, given the figures
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Answer:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

2 cream x 10 = 20

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Step-by-step explanation:

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Factcheck:

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Answer:

the standard form of the given algebraic expression is

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Answer:

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Step-by-step explanation:

Formula:

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And then substitute...

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Use technology to find points and then graph the line y = 5/3x – 1

Answers

Answer:

Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y values.

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good luck, i hope this helps :)

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Answers

Answer:

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Step-by-step explanation:

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