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-BARSIC- [3]
2 years ago
15

Please help me answer this. Ty

Mathematics
2 answers:
uranmaximum [27]2 years ago
7 0

Answer:

x=63

Step-by-step explanation:

∠BAC=∠ACD=x(AB∥CD)

∠BCA=∠BAC=x(base∠s, isos△)

∠?BC+∠BCA=90(ext.∠of△)

27+x=90

x=90-27

x=63

blsea [12.9K]2 years ago
4 0

I think 63, but I'm not sure, how do I delete an answer-

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Please view picture. Also please tell mehow you got the answer
Cerrena [4.2K]
Have a look at the image attachment. I've added the points A, B, C, D such that
A = base of the diving board pole, or location of the pool deck
B = the location 1.6 meters directly above point A
C = location of the person's eyes
D = diving board location
The goal is to find the length of segment AD

We are given
AB = 1.6
BC = 3.67
what we want to find is
BD = x

Due to the fact we have similar right triangles ABC and CBD, we can form the proportion below and solve for x
AB/BC = BC/BD
1.6/3.67 = 3.67/x
1.6*x = 3.67*3.67
1.6*x = 13.4689
1.6*x/1.6 = 13.4689/1.6
x = 8.4180625

So BD is 8.4180625 meters
Use this to find the length of AD
AD = AB + BD
AD = 1.6 + 8.4180625
AD = 10.0180625
which rounds to 10.0 meters when rounding to the nearest tenth (one decimal place)

------------------------------------------------------------------------------------------

Answer: choice D) 10.0 m

7 0
3 years ago
ANSWER FAST PLS 25POINTS!!!!!!!!!!!!!!
kkurt [141]

Answer:

its c

Step-by-step explanation:

i think i looked over it but i dont certainlt know if it correct

8 0
2 years ago
Read 2 more answers
What is the unit rate for miles per gallon if you travel 588 miles on 28 gallons of fuel
Nataly_w [17]

Answer: im pretty sure its 21 mi per gal

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Britney is solving a quadratic equation. Her first
Liula [17]

Britney used commutative property of addition and distributive property of multiplication  over addition to get to step

The answer is II and IV ⇒ answer 4

Step-by-step explanation:

The quadratic equation is:

3x² - 8 - 10x = 3(2x + 3)

Britney's step is:

3x² - 10 x - 8 = 6x + 9

Lets explain the meaning of:

1. Commutative property of addition is: you can add a and b or b and a

   both give the same answer

2. Distributive property of multiplication over addition is: when the

   number a is multiplied by the sum of two numbers (b + c), the

   first number a can be distributed to both b and c and multiplied

   by each of them separately, then adding the two products ab and

   ac together for the same result as multiplying the first number a by

   the sum (b + c) ⇒ a(b + c) = ab + ac

3. Addition property of equality is: the property that states if you

   add the same number to both sides of an equation, the sides

   remain equal

4. Multiplication property of equality is: The property that states if

   you multiply both sides of an equation by the same number, the

   sides remain equal

Now let us explain Britney's step

∵ She change the places of the terms - 10x and - 8

- She arranges the terms of the left hand side from greatest power

  of x to the numerical term

∴ She used the commutative property of addition

∵ She multiplied 3 by 2x and multiplied 3 by 3

- She multiplied the number out side the bracket by each of the

  two terms in the bracket

∴ She used the distributive property of multiplication over addition

Britney used commutative property of addition and distributive property of multiplication  over addition to get to step

The answer is number 4) II and IV

Learn more:

You can learn more about quadratic equation in brainly.com/question/8196933

#Learn withBrainly

8 0
3 years ago
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The temperature is -7. Since midnight the temperature tripled and then rose 5° what was the temperature at midnight?
expeople1 [14]

The answer would be -2

7 0
3 years ago
Read 2 more answers
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