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Norma-Jean [14]
3 years ago
12

What is the value of x ??? in trapezoid ABCD?? HELP ASAP

Mathematics
1 answer:
Alexeev081 [22]3 years ago
8 0
It would be 15 because the way you would set it up is equal to 180 because they are opposite and they have to add up to 180 in order for the whole shape to be 360. so 3x+9x=180 and then 12x=180 and divide 180 by 12 which is 15 and you can also plug in 15 to check
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You plan on purchasing a new LCD television that cost $890 plus 8.1% tax. How much is the total cost of the television after tax
irina1246 [14]
The answer is $962.09. All you do is multiply 890$ by your tax and than add your tax. Another way of doing it is take the decimal value of your 8.1% which is .081 and add 1 to get 1.081. Now that you have that you multiply 890 by 1.081 to get 962.09

Hope this helps you
3 0
3 years ago
Can someone solve this please
alisha [4.7K]

Answer:

12,475.3cm^3

Step-by-step explanation:

volume = π x r2 x h

π x 19^2 x 11 = 12,475.264

rounded = 12,475.3

5 0
3 years ago
The quadrilateral ABCD is a rhombus with diagonals AC = 12 ft and BD = 4 ft. The points M and N divide diagonal AC on three equa
victus00 [196]

Answer:

area of BMDN 8 ft²

Step-by-step explanation:

In BMDN the diagonals are BD and MN.

MN is 12/3 = 4 ft long, and BD = 4 ft.

A rhombus with equal diagonals is a square, so BMDN is a square.

In the right triangle BDN, the diagonal BD is the hypotenuse, then:

DN² + NB² = BD²

but DN = NB, then:

2*DN² = 16 ft²

DN² = 8 ft²

The area of BMDN is computed as one of its sides squared. Then, DN² is its area

8 0
3 years ago
Given that a=16cm and b=17cm work out the height of the triangle
lilavasa [31]

Answer:

√33 cm

Step-by-step explanation:

Here,

b² = a² + c²

Because it is a right triangle

=> (17)² = (16)² + c²

=> 289 = 256 + c²

=> 289 - 256 = c²

=> 33 = c²

=> √33 = c

Hence,

height of triangle is √33 cm

6 0
2 years ago
Read 2 more answers
Please answer this question with a complete answer
Lena [83]

Answer:

true, false, true

Step-by-step explanation:

first one:

|-3.17|=3.17

-3.17 cannot be negative away, so it must be positive.

second one:

|7.29|=7.29

not equal to -7.29

third one:

no matter if it's negative or positive, you always use absolute value (||) to measure distances between number lines

brainliest plz

8 0
2 years ago
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