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3 years ago

If the lines x+y=5 and 2x +2y+6=0 are parallel, find the distance between them

Mathematics

1 answer:

kobusy [5.1K]3 years ago

5 0

Pretty sure the distance is 8 units

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Find the domain of the graphed function plz lol

Luba_88 [7]

Answer:

Step-by-step explanation:

we have to find for what value of x the graph exists.

1) start to see on the left

- the graph ”hasn’t a start“ so it continues to go until -oo

2) notice that the graph stops when x = 0

3) match the two informations

x≤0

8 0

3 years ago

Please Help! Quickly image below with question

GrogVix [38]

Answer:

12742π Km

Step-by-step explanation:

The length of the rope is the circumference of the circle, that is

C = 2πr ( r is the radius ) Here r = 6371

C = 2π × 6371 = 12742π Km

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3 years ago

A triangle has a height that is increasing at a rate of 2 cm/sec and its area is increasing at a rate of 4 cm2/sec. Find the rat

lesya [120]

Answer:

The value of rate of which the base is changing $\frac{dB}{dt}$ = - 3 $\frac{cm}{s}$

Step-by-step explanation:

Area = 20 $cm^{2}$

height = 4 cm

$\frac{dH}{dt} = 2 \frac{cm}{sec}$

$\frac{dA}{dt} =$ $2 \ \frac{cm^{2} }{sec}$

we know that area of the triangle is given by

$A= \frac{1}{2} B H$

$B = \frac{2A}{H}$

$B = \frac{2 (20)}{4}$

B = 10 cm

Rate of change of area is given by

$\frac{dA}{dT} = \frac{1}{2} [B\frac{dH}{dt} + H \frac{dB}{dt} ]$

4 = 0.5 [10 × 2 + 4 $\frac{dB}{dt}$ ]

$\frac{dB}{dt}$ = - 3 $\frac{cm}{s}$

This is the value of rate of which the base is changing.

7 0

3 years ago

How many pounds of 65cent coffee must be mixed with 10 pounds of 90cent coffee to make a mixture worth 70 cents per pound? A

trasher [3.6K]

The answer is 90 100%sure it's 90

7 0

3 years ago

Please help me to do this question with steps

Anarel [89]

Answer:

x = 71°

Step-by-step explanation:

Segments of tangents from the same external point are congruent, that is

AT = BT

Then Δ ABT is isosceles with base angles congruent , so

x = $\frac{180-38}{2}$ = $\frac{142}{2}$ = 71°

8 0

3 years ago