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3 years ago

Given the sequence : 25, 21, 17,13,... Write the explicit equation that models the sequence.

Mathematics

1 answer:

ivanzaharov [21]3 years ago

6 0

Answer:

25,21,17,13,9,5,1

Step-by-step explanation:

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Emily has saved $74 toward a new sound system that costs $149. She plans on saving an additional $15 each week. How many weeks w

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It'll take Emily five weeks to buy the sound system.

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2 years ago

7x-10+2x=39+2x what is the answer

stich3 [128]

Answer:

X=7

Step-by-step explanation:

STEP 1: Simplify both sides of the equation

7x + -10 + 2x =39 + 2x

(7x + 2x) + (-10) = 2x + 39 (combine like terms)

9x -10 = 2x + 39

step 2: Subtract 2x from both sides

9x -10 - 2x = 2x + 39 - 2x

7x - 10 =39

Step 3: Add 10 to both sides.

7x - 10 + 10 = 39 + 10

7x = 49

Step 4: Divide both sides by 7.

7x/ 7 = 49/7 x=7

hope this helps!!

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2 years ago

Heinz has a list of possible functions. Pick one of the g(x) functions below, show how to find the zeros, and then describe to H

MrRissso [65]

g(x) = x3 – x2 – 4x + 4

You can find the zeroes by factoring the equation. x2 (x - 1) - 4(x - 1) = 0

(x2 - 4) (x - 1) = 0

(x + 2) (x - 2) (x - 1) = 0

x = 2, -2, and 1

The following are the key features of g(x):

g'(x) yields the slope

g''(x) yields the concavity

g'(x) = 0 provides the critical points

g''(x) = 0 provides the point of inflection

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2 years ago

What is the value of x?

Ivenika [448]

32.5 degrees is the answer

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2 years ago

1) A cyclist travels a distance of 90 miles in 5 hours. What

Nostrana [21]

Answer:

Step-by-step explanation: Speed is distance an object travelled per unit time.

It is represented by letter v and can assume various units.

1) $v=\frac{distance}{time}=\frac{d}{t}$

$v=\frac{90}{5}$

v = 18 miles per hour

Her average speed is 18 mph.

2) Rearraging formula for distance:

d = v.t

d = 70 * 4

d = 280 miles

You would travel 280 miles.

3) $v=\frac{d}{t}$

$v=\frac{315}{6}$

v = 52.5 mph

My average speed is 52.5 mph.

4) Rearranging formula to determine time:

$t=\frac{d}{v}$

$t=\frac{210}{90}$

t = 2.34 hours

It will take 2 hours and half to arrive in Leeds. So, we will be expected to arrive at 12:04.

5) The unit change but the way of calculating time is the same.

$t=\frac{2000}{4}$

t = 500 s

or t = 8.34 minutes

It will take, for an athlete to run 2000m, 8.34 minutes.

6) a) All units must match, so for a speed in mph:

45 minutes is 0.75 hours. Total time is 8.75 hours.

$v=\frac{420}{8.75}$

v = 560 mph

The average speed is 560 mph.

b) $t=\frac{d}{v}$

$t=\frac{420}{63}$

t = 6.67 hours

Sam will take 6.67 hours to covered the distance.

4 0

2 years ago