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PSYCHO15rus [73]
3 years ago
12

Which sum will be irrational?

Mathematics
1 answer:
KengaRu [80]3 years ago
7 0
The 2nd choice, square root of 19 plus 7/2
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The measure of angle MBT ?
Alik [6]

Answer:

Oooo I’m doing a question just like that one on my hw

Step-by-step explanation:

3 0
3 years ago
What kind of solution is -6(x-2)=-7(x-3)
Firlakuza [10]

Answer:

-6(x-2)=-7(x-3) = False x = 9

Step-by-step explanation:

Solve for x:

-6 (x - 2) = -7 (x - 3)

Expand out terms of the left hand side:

12 - 6 x = -7 (x - 3)

Expand out terms of the right hand side:

12 - 6 x = 21 - 7 x

Add 7 x to both sides:

7 x - 6 x + 12 = (7 x - 7 x) + 21

7 x - 7 x = 0:

7 x - 6 x + 12 = 21

7 x - 6 x = x:

x + 12 = 21

Subtract 12 from both sides:

x + (12 - 12) = 21 - 12

12 - 12 = 0:

x = 21 - 12

21 - 12 = 9:

Answer:  x = 9

6 0
3 years ago
Read 2 more answers
Find the surface area of the figure. Use 3.14 for π and round to the nearest hundredth if necessary.
Jet001 [13]

The formula for the surface area of a sphere is

\begin{gathered} A=4\cdot\pi\cdot r^2 \\ A=4\cdot3.14\cdot5^2 \\ A=314 \end{gathered}

3 0
1 year ago
Determine the equation of the altitude from A.
Rudik [331]

Answer:

y = - 3x + 11

Step-by-step explanation:

the altitude is a line from the vertex A drawn perpendicular to the opposite side BC

calculate the slope of BC using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = B (- 7, 3 ) and (x₂, y₂ ) = C (- 1, 5 )

m_{BC} = \frac{5-3}{-1-(-7)} = \frac{2}{-1+7} = \frac{2}{6} = \frac{1}{3}

given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{1}{3} } = - 3

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept ) , then

y = - 3x + c ← is the partial equation

to find c substitute A (4, - 1 ) into the partial equation

- 1 = - 12 + c ⇒ c = - 1 + 12 = 11

y = - 3x + 11 ← equation of altitude from A

7 0
2 years ago
Solve for c, 3ab-2bc=12
Troyanec [42]
-2bc=12-3ab

c=(3ab-12)/(2b)
6 0
3 years ago
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