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3 years ago

How do you show your work on questions that are confeusing when you show your work

Mathematics

1 answer:

elixir [45]3 years ago

8 0

Answer:

Where is the question??

Step-by-step explanation:

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What does x equal to in the equation −7x>10

natita [175]

Answer:

Step-by-step explanation:

hello :

−7x>10

multiply by : -1 : 7x < -10

x< -10/7

5 0

3 years ago

A car is traveling at 55 mi/hour. What is the cars speed in feet per second

Shalnov [3]

Answer:

80.7 ft/sec

Step-by-step explanation:

You need two conversion factors:

1 mile = 5280 ft, so (52780 ft)/(1 mile) = 1

1 hour = 3600 seconds, so (1 hour)/(3600 seconds) = 1

55 mi/hour * (5280 ft)/(1 mile) * (1 hour)/(3600 seconds) = 80.6666... ft/sec

Answer: 80.7 ft/sec

6 0

3 years ago

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Simplify the expression 2(x + 7)(x2 – 3x – 6).

Oksi-84 [34.3K]

Answer:

2x^3+8x^2-54x-84

Step-by-step explanation:

7 0

3 years ago

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HELPP PPLEASEEE!!!

olga2289 [7]

Answer:

See below in bold.

Step-by-step explanation:

Ship's vector:

Horizontal component = 30 cos 30 = 25.98.

Vertical component = 30 sin(-30) = -15.

So it is <25.98, -15).

The current's vector:

Horizontal component = 5 sin 20 = 1.71.

Vertical component = 5 cos 20 = 4.7.

So it is <1.71, 4.7>.

5 0

3 years ago

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Given a circle with centre O and radius 2.4cm. P is a point such that the lenght of the tengent from Q to the circle is 4.5cm. F

skelet666 [1.2K]

Answer:

5.1 cm

Step-by-step explanation:

(Probable) Question;

Given a circle with center O and radius 2.4 cm. P is a point on the tangent that touches the circle at point Q, such that the length of the tangent from P to Q is 4.5 cm. Find the length of OP

The given parameters are;

The radius of the circle with enter at O, $\overline{OQ}$ = 2.4 cm

The length of the tangent from P to the circle at point Q, $\overline{PQ}$ = 4.5 cm

The length of OP = Required

By Pythagoras's theorem, we have;

$\overline{OP}$ ² = $\overline{OQ}$ ² + $\overline{PQ}$ ²

∴ $\overline{OP}$ ² = 2.4² + 4.5² = 26.01

$\overline{OP}$ = √26.01 = 5.1

The length of OP = 5.1 cm

8 0

3 years ago