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3 years ago

Please help with this Khan Question :)

Mathematics

1 answer:

astraxan [27]3 years ago

4 0

Answer:

the answer is A

Step-by-step explanation:

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HELP ME ASAP PLEASE!!

Daniel [21]

Answer:

set both of them equal to each other:

8x - 8° = 5x + 25°

subtract 5x by both sides of the equations and it becomes:

3x-8° = 25°

now add 8° both sides:

3x = 33°

divide three by both sides:

x = 11°

now thats done to find B:

plug your x value in the B equation:

5x + 25°

5(11) +25°

55 +25°

not sure if you can add here sorry :(. I hope this helped so far :)

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3 years ago

The sum of two rational numbers is -2. If one of the numbers is -14/5, find the other.

Marat540 [252]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

$\frac{ - 14}{5} + x = - 2 \\ x = - 2 + \frac{14}{5 } \\ x = \frac{ - 10 + 14}{5} \\ \: x = \frac{4}{5} \\ therefore \: the \: other \: number \: is \: \frac{4}{5}$

7 0

3 years ago

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An aircraft (at Z) is spotted by two observers (at X and Y) who are L=1750 feet apart . As the airplane passes over the line

valentinak56 [21]

Answer:

at aircraft(at z) sported by

6 0

3 years ago

Can you solve this problem please

Afina-wow [57]

Answer:

k = 11

Step-by-step explanation:

Given the points are collinear then the slopes between consecutive points are equal.

Using the slope formula

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

with (x₁, y₁ ) = (5, 1) and (x₂, y₂ ) = (1, - 1)

m = $\frac{-1-1}{1-5}$ = $\frac{-2}{-4}$ = $\frac{1}{2}$

Repeat with another 2 points and equate to $\frac{1}{2}$

with (x₁, y₁ ) = (1, - 1) and (x₂, y₂ ) = (k, 4)

m = $\frac{4+1}{k-1}$ , then

$\frac{5}{k-1}$ = $\frac{1}{2}$ ( cross- multiply )

k - 1 = 10 ( add 1 to both sides )

k = 11

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3 years ago

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7+4x= -5 helppppppppppppp

Zepler [3.9K]

X=-3

7+4x=-5
-7 -7
4x=-12
/4. 4/
X=-3

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1 year ago

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