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3 years ago

Anyone pls at least answer one question asap thks

Mathematics

1 answer:

Yuki888 [10]3 years ago

6 0

Step-by-step explanation:

only 10 and 12. luck to you

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A traveler traveled for 6 hours and covered a distance of 520 km. He traveled the first 260 km by car, and the rest of the way b

Shkiper50 [21]

Answer:

57.78 km/hr

Step-by-step explanation:

Total time taken, t = 6 hours

Total distance covered, d = 520 km

Distance by car = 260

Distance by train = 520 - 260 = 260 km

Train speed = x

Car speed = 2x

Average speed speed = 3x /2

Speed = distance / time

1.5x = 520 / 6

9x = 520

x = 520 / 9

x = 57.777

Average speed of train = 57.78 km/hr

7 0

3 years ago

How many x-intercepts will the graph of y = 3x2 + 6x + 3 have? (Use the discriminant to

KonstantinChe [14]

Answer:

i think D or B is the answer

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Simply 2 x b x b x b x 4

elena-s [515]

2×4=8
b×b×b= b^3
so putting them together would be
8×b^3

5 0

3 years ago

Read 2 more answers

Complete the equation of the line through (-9,7) & (-6,-3)

scZoUnD [109]

Answer:

$y=-\frac{10}{3}x-23$

Step-by-step explanation:

we have the points

(-9,7) and (-6,-3)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{-3-7}{-6+9}$

$m=-\frac{10}{3}$

step 2

Find the equation in point slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{10}{3}$

$(x1,y1)=(-6,-3)$

substitute

$y+3=-\frac{10}{3}(x+6)$ ---> equation in point slope form

step 3

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$y+3=-\frac{10}{3}(x+6)$

Isolate the variable y

Distribute right side

$y+3=-\frac{10}{3}x-20$

subtract 3 both sides

$y=-\frac{10}{3}x-20-3$

$y=-\frac{10}{3}x-23$

7 0

3 years ago

Select the correct answer.

Luba_88 [7]

I think it Is B.....

7 0

3 years ago