3 years ago

Really need help with these please!

Mathematics

1 answer:

jasenka [17]3 years ago

3 0

Answer:

x = 2.3

Step-by-step explanation:

Since XY and YZ are congruent, then their distance must be equal. This means the length of YZ is also 6.9. To sole for x, set them equal.

3x = 6.9

x = 2.3

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In the high jump event at the city track meet ronald successfully jumped 4 feet and 6 inches. Luis successfully jumped 3 feet an

Genrish500 [490]

Answer:

Ronald by 9 inches

Step-by-step explanation:

Ronald jumped a total of 54inches

Luis jumped a total of 45 inches

8 0

2 years ago

IN (3)

svetoff [14.1K]

Answer:

(a) Rule: Multiply the input (x) by 2 and add 5 to the result of the product

(b) $y =2x +5$

Step-by-step explanation:

Given

The attached table

Solving (a): The rule of the table in words

First, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Using:

$(x_1,y_1) = (2,9)$

$(x_1,y_1) = (10,25)$

So, we have:

$m = \frac{25 - 9}{10 - 2}$

$m = \frac{16}{8}$

$m=2$

The equation is calculated using:

$y - y_1 =m(x - x_1)$

Using:

$(x_1,y_1) = (6,17)$

We have:

$y - 17 =2(x - 6)$

$y - 17 =2x - 12$

Make y the subject

$y =2x - 12+17$

$y =2x +5$

Hence, the rule is:

Multiply the input (x) by 2 and add 5 to the result of the product

(b): The rule, in algebra

As solved in (a), the rule is:

$y =2x +5$

8 0

2 years ago

Bob finishes his supper at 6:30 P.M. Then he studies for 55 minutes and spends 35 minutes playing video games before he watches

Kitty [74]

He watches TV at around 8:00 P.M., though it could be any other time around the world.

4 0

2 years ago

The total cost of a truck rental, y, for x days, can be modeled by y=24x+39. What is the rate of change for this function?

padilas [110]

Answer:

24 per day

Step-by-step explanation:

'x' = days, so since 24 is with x, the rate of change is 24

3 0

2 years ago

The bill for the repair of a computer was $179. The cost of part was $44, and labor charge was $45 per hour. How many hours did

Cloud [144]

Alright! First you'd subtract the amount of the part ($44) from your total ($179), then you'd divide by the rate of cost ($45). Your equation would be:
($179 - $44) ÷ $45 = h.

Then you solve:
($179 - $44) = $135
($135 ÷ $45) = 3
h = 3.

The answer is 3 hours.

4 0

3 years ago