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Likurg_2 [28]
3 years ago
13

HELP

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
4 0

the answer is D :) i hope you have a good day

sasho [114]3 years ago
3 0

Answer:

Option D. 150°

Step-by-step explanation:

In an isosceles triangle WXY, ∠YWX and ∠YXW are the base angles.

YZ is the bisector of ∠WYX.

m∠XYZ = 15x° and m∠YXZ = (2x + 5)°

We have to find the measure of ∠WYX.

Since ΔWXY is an isosceles triangle therefore YZ which is a bisector of ∠WYX will be perpendicular to XW.

Therefore ∠YXW + ∠XYZ + ∠YZX = 180°

15x + 2x + 5 + 90 = 180

17x + 95 = 180

17x = 180 - 95 = 85

x = 85/17 = 5

Therefore ∠WYX = 2×∠XYZ = 2×(15x) = 30×5 = 150°

Answer is ∠WYX = 150°

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Answer:

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Step-by-step explanation:

Given

Correct \Marks= +5

Incorrect\ Marks= -2

Score\ Obtained = 30

Number\ of\ correct\ answers = 10

Required

Number of questions answered

First, we need to get the total correct marks obtained by Roy

This is calculated by multiplying the correct marks by number of correct answers

Total = +5 * 10

Total = +50\ marks

Subtract this from the total scores obtained; This gives the total incorrect answer obtained by Roy

Incorrect = Scores\ Obtained - Total

Incorrect = 30 - (+50)

Open bracket

Incorrect = 30 - 50

Incorrect = -20

Divide this by -2 to get the number of incorrect answers

Incorrect\ Answers = \frac{-20}{-2}

Incorrect\ Answers = 10

Add this to the number of correct answers to give the total number of question answered

Total = Correct\ Answers + Incorrect\ Answers

Total = 10 + 10

Total = 20

<em>Hence, Roy answered a total of 20 questions</em>

3 0
3 years ago
(Quick please ) !!!!!!!!!!!!!!!! Help me!!!!! find the surface area of the rectangular prism!!!!!! thank you
Aleks [24]
You can do this !

The rectangular prism has

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-- The area of the left and right sides is  (length x height)  each.

-- The area of the front and back is  (width x height)  each.

There.  I just laid out all the schmartz you need to answer this question.
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3 years ago
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3 years ago
An illusionist needs up to 10 volunteers for a show. She needs no fewer than 4 female volunteers. Let x represent the number of
Sliva [168]

The <em><u>correct answers</u></em> are:

B- x + y ≤ 10 ; and D- x ≥ 4

Explanation:

The illusionist needs at least 4 female volunteers.  This means he could use 4 or more; this means x, the number of female volunteers, is greater than or equal to 4:

x ≥ 4

The total of number of volunteers needed is up to 10.  This means the illusionist can use 10 or fewer people; this means the total is less than or equal to 10.

The number of female volunteers is x and the number of male volunteers is y; together they create the expression x+y.  This gives us

x+y ≤ 10

7 0
3 years ago
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