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irakobra [83]
3 years ago
14

Answer for Brainliest! Find the value of x.

Mathematics
1 answer:
NeTakaya3 years ago
8 0

now, let's notice those tickmarks on the sides.

the ones at the bottom, those two sides are equal.

the ones at the top-right, those two sides are also equal.

what does all that mean?

it means that, the segment in the triangle, the 2x-3 segment is really the midsegment of the triangle, and therefore, also parallel to the base of 18, and also therefore is half of that length.

\bf \textit{midsegment of a triangle}\\\\ m = \cfrac{b}{2}~~ \begin{cases} b=parallel~side\\ \qquad or~base\\[-0.5em] \hrulefill\\ m=2x-3\\ b=18 \end{cases}\implies 2x-3=\cfrac{18}{2}\implies 2x-3=9 \\\\\\ 2x=12\implies x=\cfrac{12}{2}\implies x=6

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HELP!!!!!!!!!
Anastasy [175]

Answer:

∠ABC ≅ ∠DEC

∠DEC = ∠GEF

thus:

∠ABC = ∠GEF

∠GFE ≅ ∠DCE

∠DCE = ∠ACB

thus:

∠ACB = ∠GFE

If two of their angles are equal, then the third angle must also be equal, because angles of a triangle always add to make 180°.

thus: ΔABC ∼ ΔGEF by AA similar triangle postulate

I hope this helps

3 0
3 years ago
I need help graphing this problem<br>−7x+5y=35 ​
Arturiano [62]

Answer:

slope:  7/5

y-int: (0,7)

hope this helps!!:)

Step-by-step explanation:

4 0
3 years ago
Please solve the equation:4(y-3)=3(y+6) and please show your work!
dalvyx [7]
4(y-3)=3(y+6)
1) Distribute
4y-12=3y+18
2) Addition property of equality
4y=3y+30
3)Subtraction property of equality
y=30
Thats your answer!
Enjoy middle school while you still can!
6 0
3 years ago
Pleeeease help me translate the following sentence into an equation using n to represent the unknown number. Then solve the equa
anygoal [31]
Six more than: 6 + or + 6
twice a number: let n represent the unknown number: 2n

6 + 2n = 16

So, the answer is either c or d

So, solve the equation

Subtract 6 on both sides of the equation

2n=10

Divide by 2 on both sides of the equation

n=5

So, the answer is C
7 0
3 years ago
Read 2 more answers
Help me please sos!!
Anvisha [2.4K]

Answer:

  75 ≤ length < 85

Step-by-step explanation:

You know a number 5 or greater will round up to the next higher number in the number place to its left. Similarly, numbers less than 5 round down (get replaced by zero).

This means that 75 will round up to 80. and 84.9999... will round down to 80.

a) The lower bound on length is 75. The length must be at least 75.

b) The upper bound on length is 85. The length must be less than 85.

4 0
3 years ago
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