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nadezda [96]
1 year ago
5

What is the value of x? Enter your answer in the box.

Mathematics
1 answer:
Radda [10]1 year ago
5 0

Answer:

x = 8

y = 6

Step-by-step explanation:

First and foremost, it's an equilateral triangle, therefore all sides and angles are equal.

Knowing that the sum of angle in a triangle is 180°, therefore each angle is 60°.

Then equating (7x+4)° to 60, we have that,

7x+4=60

7x=60-4

7x=56

x=56÷7

x=8.

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Please answer both A. and B.<br><br> Thank you in advance!!!
Nitella [24]

Answer:

175 ft

Step-by-step explanation:

From the question,

(a) ΔABC and ΔEDC are similar because all the angles in ΔABC is equal to the corresponding angles in ΔEDC.

I.e, ΔABC is equiangular to ΔEDC. (AAA).

(b) From the diagram.

for similar angle, ratio of corresponding sides are equal

100/d = 4x/7x

100/d = 4/7

where d = distance across the river

solve for d

d = (100×7)/4

d = 175 ft

8 0
2 years ago
Can someone please help me
Musya8 [376]

Answer: SAS

Step-by-step explanation:

AC = AC (reflexive property)

So we know that AC = AC

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They are similar by SAS

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2 years ago
What are the solutions of the equation x^2 =4? Use of the related function
Dmitry_Shevchenko [17]
Well threw my calculations would be <span><span>  x=  0.0000 - 2.0000 i 
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4 0
3 years ago
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Sonia earned $2,100 at her uncle's orchard. If she worked for 70 weeks and earned the same amount of money each week, how much d
Drupady [299]

Answer:

30

Step-by-step explanation:

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2 years ago
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Easy multiple choice!
Zepler [3.9K]

Answer:

-4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define Systems</u>

4x + 5y = -12

-2x + 3y = -16

<u>Step 2: Rewrite Systems</u>

-2x + 3y = -16

  1. Multiply everything by 2:                    -4x + 6y = -32

<u>Step 3: Redefine Systems</u>

4x + 5y = -12

-4x + 6y = -32

<u>Step 4: Solve for </u><em><u>y</u></em>

<em>Elimination</em>

  1. Combine 2 equations:                    11y = -44
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5 0
2 years ago
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