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Annette [7]
3 years ago
12

Find the value of x. *BRAINLIEST* A. 10 B. 8.3 C. 7 D. 5

Mathematics
1 answer:
bekas [8.4K]3 years ago
3 0
3x-5 is a midline of that triangle so:

3x-5=\dfrac{1}{2}\cdot20\\\\\\3x-5=10\\\\3x=15\quad|:3\\\\\boxed{x=5}

Answer D.
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What's the vertex of the following equation<br> x² - 6x + 5
igomit [66]

Answer:

Step-by-step explanation:

To find the vertex, change the following equation into graphing form (vertex form)

(x-3)^2-4 - graphing form

The vertex is (3,-4) because you find the x intercept by doing the opposite of -3, and -4 is in the equation.

vertex=

(3,-4)

7 0
3 years ago
Simplify the expression where possible.<br><br> (-5x2)^3
Paul [167]

Answer:

-1000

Step-by-step explanation:

1. Do the Parenthesis problem first. (PEDMAS/PEMDAS)

You should then have -10^3

2. Solve with the exponent. (-10 x 10 x 10)

You should then get your final answer, which is -1000.

Any Questions/Concerns?

6 0
3 years ago
Find the values of x and y. <br> x + 7i = y − yi
lys-0071 [83]

Answer: X = y - yi - 7i

               Y = (x + 7i)/(1 - i)

Step-by-step explanation: for the case of (X) you only need to pass the 7i to the other side with the subtraction sign (-7i), then we get this equation:

x + 7i = y − yi

X = y - yi - 7i

in the case of the (Y), first we select the common multiple.

y - yi = y(1 - i)

if we replace it in the original expression, we get the following equation:

x + 7i = y(1 - i)

after that you can pass the value (1 - i) to the other side dividing,

Y = (x + 7i)/(1 - i)

6 0
3 years ago
Read 2 more answers
A line has a slope of 3 and a y-intercept of 5. What is its equation in slope-intercept form? Write your answer using integers,
s344n2d4d5 [400]

Answer:

y=3x+5

Step-by-step explanation:

The problem is asking for slope-intercept form, luckily, they gave us both of those things.

Slope-intercept form: y=mx+b, where m= slope and b= y-intercept.

So,

y=3x+5

Hope this helps!

7 0
3 years ago
Which unit of measurement is part of the metirc system
Goryan [66]
Millimeter centimeter meter kilometer
7 0
4 years ago
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