All categories

3 years ago

Y = 1/2x +10 y = 4x - 4 solve by graphing

Mathematics

1 answer:

Firdavs [7]3 years ago

4 0

Answer:

(4,12)

MARK ME BRAINLIEST

You might be interested in

Parker baked 80 cookies for a bake sale. At the bake sale, 70% of his cookies sold. How many of Parker’s cookies were sold?

Doss [256]

80 * 70 percent = cookies sold

80 * .7 = cookies sold

56 = cookies sold

4 0

3 years ago

Read 2 more answers

Match the following trigonometric ratios with the correct equation for the triangle shown below.

kotegsom [21]

Step-by-step explanation:

24²+7²=25²

576+49=625

625=625

4 0

3 years ago

Solve forp. (1 point)<br>3(p+ 4) =p

NeX [460]

Answer:

p = -6

Step-by-step explanation:

1) Distribute 3 through the parenthesis {3p + 12 = p}

2) Subtract 12 from each side {3p = p - 12}

3) Subtract p from each side {2p = -12}

4) Divide each side by 2 {p = -6}

5 0

3 years ago

a port and a radar station are 2 mi apart on a straight shore running east and west. a ship leaves the port at noon traveling no

Rom4ik [11]

Answer:

The rate of change of the tracking angle is 0.05599 rad/sec

Step-by-step explanation:

Here the ship is traveling at 15 mi/hr north east and

Port to Radar station = 2 miles

Distance traveled by the ship in 30 minutes = 0.5 * 15 = 7.5 miles

Therefore the ship, port and radar makes a triangle with sides

2, 7.5 and x

The value of x is gotten from cosine rule as follows

x² = 2² + 7.5² - 2*2*7.5*cos(45) = 39.04

x = 6.25 miles

By sine rule we have

$\frac{sin A}{a} = \frac{sin B}{b}$

Therefore,

$\frac{sin 45}{6.25} = \frac{sin \alpha }{7.5}$

α = Angle between radar and ship α

∴ α = 58.052

Where we put

$\frac{sin 45}{6.25} = \frac{sin \alpha }{x}$ to get

$\frac{x}{6.25} = \frac{sin \alpha }{sin 45}$ and differentiate to get

$\frac{\frac{dx}{dt} }{6.25} = cos\alpha\frac{\frac{d\alpha }{dt} }{sin 45}$

$\frac{15sin45 }{6.25cos\alpha } =\frac{d\alpha }{dt} }$ = 3.208 degrees/second = 0.05599 rad/sec.

6 0

3 years ago

What is 7a + 1 = 8a - (a - 1)

leva [86]

Answer: all real numbers

Step-by-step explanation:

7a + 1 = 8a - a + 1

7a + 1 = 7a + 1

a = all real numbers

5 0

3 years ago