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almond37 [142]
2 years ago
11

B

Mathematics
1 answer:
zaharov [31]2 years ago
5 0
Vertical angles or opposite angles when line bf intersects line ce at point a. drawing it out helps
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Allisa [31]

Answer:

26 miles per gallon

Step-by-step explanation:

8 0
3 years ago
What is the sum of all the angles that are labeled?
Jobisdone [24]

Answer:

235

Step-by-step explanation:

Add the labeled angles

23+40+92+80

235

5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B686x%5E4%20y%5E7%7D" id="TexFormula1" title="\sqrt[3]{686x^4 y^7}" alt="\sqrt
Sergio [31]
This answer is there in picture

5 0
3 years ago
For which positive integer values of $k$ does $kx^2+20x+k=0$ have rational solutions? Express your answers separated by commas a
Musya8 [376]

Answer:

-10,10

Step-by-step explanation:

The given quadratic equation is

k {x}^{2}  + 20x + k = 0

The discriminant of this equation is given by;

D =  {b}^{2}  - 4ac

where a=k, b=20, c=k

For rational solutions, the discriminant must be zero.

{20}^{2}  - 4 \times k \times k = 0

Simplify to get:

400 - 4  {k}^{2}  = 0

This implies that:

400  = 4  {k}^{2}

100 =  {k}^{2}

Take square root to get:

k =   \pm\sqrt{100}

k =  \pm10

k =  - 10 \: or \: k = 10

3 0
3 years ago
A train picked up 20 people at station A. At station B 15 people got off and 3 people got on. How many people are on the train n
Step2247 [10]

Answer:

There are 8 people on the train.

Step-by-step explanation:

20 - 15 = 5

5 + 3 = 8

7 0
3 years ago
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