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Dvinal [7]
3 years ago
8

A train travels at a speed of 48.6 km/h. Express this speed in(ii) cm/min.(1) m/s,​

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
4 0

Answer:

Step-by-step explanation:

Conversion factors:

1 km = 1000 m

1 m = 100 cm

1 h = 60 min

1 min = 60 sec

48.6 km/h = 81,000 cm/min = 13.5 m/sec

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What is 88 divided by 11
Gelneren [198K]

Answer:8

Step-by-step explanation: 8x11=88

5 0
4 years ago
Is (x+7) a factor of f(x) x3-3x2+ 2x-8?
Snowcat [4.5K]

Answer:

(x+7) is not a factor

Step-by-step explanation:

we know that

If (x+7) is a factor of f(x)

then

For x=-7, f(-7)=0

Verify

we have

f(x)=x^{3}-3x^{2} +2x-8

Substitute x=-7

f(-7)=(-7)^{3}-3(-7)^{2} +2(-7)-8

f(-7)=-343-147 -14-8

f(-7)=--512

-512\neq 0

therefore

(x+7) is not a factor

3 0
3 years ago
Anybody know the answer?
Dmitry_Shevchenko [17]

Answer:

<h2><em><u>Option</u></em><em><u> </u></em><em><u>B</u></em><em><u> </u></em></h2>

Step-by-step explanation:

<em><u>As</u></em>,

It has shown that line c cuts line b by making 90° so those lines are called <em><u>perpendicular bisectors </u></em><em><u>.</u></em>

<em><u>Hence</u></em>,

<em>Option B is the correct symbol shown for perpendicular bisector of line </em><em>c</em><em> </em><em>to line </em><em>b</em><em>.</em>

8 0
3 years ago
Simplify (7-6t)+(8-3i)
tatiyna
<span>Solution) i = {2.666666667, 1.166666667}


</span>
4 0
3 years ago
Read 2 more answers
2. Find the center and radius of the circle with equation (x-6)2+ (y + 5)2 = 9.
Romashka-Z-Leto [24]

Answer:

Center (6 , -5)   and radius = 3

Step-by-step explanation:

The Standard equation of circle can  be written as

(x - a)² + (y - b)² = r²

with center (a , b)   and radius  = r

Now from given circle equation

(x - 6)² + (y +5)² = 9

so, from here center of circle (6 , -5) and radius = 3

4 0
3 years ago
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