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luda_lava [24]
3 years ago
12

Pls help me answer this :(

Mathematics
1 answer:
Snezhnost [94]3 years ago
8 0
Eek let me get my bother
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In trapezoid $ABCD$, $\overline{AB}$ is parallel to $\overline{CD}$, $AB = 7$ units, and $CD = 10$ units. Segment $EF$ is drawn
Mekhanik [1.2K]

Answer:

EF = 58/7

Step-by-step explanation:

If you extend both BC and AD to meet at P you get 3 similar triangles PAB, PEF, and PCD. Let's call BF = 3x and FC = 4x. Therefore the following proportions can be expressed:

BP/7 = (BP+7x)/10

10BP = 7*(BP+7x)

10BP = 7BP+49x

3BP = 49x

BP = (49/3)x

BP/7 = (BP+3x)/EF

EF = (BP+3x)*7/BP

EF = ((49/3)x + 3x)*7/((49/3)x)

EF = ((58/3)x*7*3)/(49x)

EF = 58/7

3 0
3 years ago
Select the ratio equivalent to 8:2<br>A. 24:10 <br>B. 4:2<br>C.4:1<br>D. 32:12​
Mama L [17]

Answer:

C)

Step-by-step explanation:

If you divide 8:2 by two you get 4:1 which is the equivilant ratio.

Hope this helps.

4 0
3 years ago
What is the solution to the system of equations below? Negative 4 x 6 y = negative 18 and y = negative 2 x 21 (9, 3) (3, 9) (–9,
Firlakuza [10]

Answer:

start with root and minus with 3 and 8 and answer the following

4 0
2 years ago
Read 2 more answers
T/F every function is a relation
sammy [17]
True
Every function is a relation, but not every relation is a function.

Hope this helps :)
4 0
3 years ago
Read 2 more answers
(1/125x^3)-1/3<br> Simplify the expression
bija089 [108]

Step-by-step explanation:

Simplify   1/125

1/125 . (x3))-1) ÷ 3

(x3

(———)-1) ÷ 3

 125

3.1    x3 raised to the minus 1 st power = x( 3 * -1 ) = x-3

3.2     125 = 53 (125)-1 = (53)(-1) = (5)(-3)

x(-3)  

 ——————— ÷ 3

(5)(-3)

         x(-3)        

Divide  ———————  by  3

  (5)(-3)

Answer:  125

/3x3

3 0
3 years ago
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