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zheka24 [161]
3 years ago
14

A trapezoid has base lengths of 3 yards and 10 yards and a height of 2.5 yards. What is the area of the trapezoid? 1. 32.5 yd2 2

. 16.25 yd2 3. 28.75 yd2 4. 8.13 yd2
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
3 0
The answer is 16.25 yd2
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PLEASE HURRY!50 POINTS ANS BRAILIEST
densk [106]

Answer:

A:

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B:

Car 1: f(x) = 18500(0.94)^{x}

Car 2: f(x) = 18500 - 1000x

C:

Car 1 would be $10600.40 after 9 years

Car 2 would be $9500.00 after 9 years

There is a significant difference of $1100.40 in value.

Step-by-step explanation:

f(x) = ar^{x}\\f(0) = a = 18500\\f(x) = 18500r^{x}\\f(1) = 18500r = 17390\\r = \frac{17390}{18500} = 0.94\\f(x) = 18500(0.94)^{x}

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3 years ago
Solve for d.<br> d•3/10=1/4
vladimir2022 [97]

Answer:

5/6

Step-by-step explanation:

Multiply both sides of equation by 10/3.

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What is 224 blocks with 8 blocks in each row how many rows would I make
NikAS [45]
You will need 28 rows because if you divide 224 by 8 you would get 28 (:
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3 years ago
A large school district in southern California asked all of its eighth-graders to measure the length of their right foot at the
Ber [7]

Answer:

The probability of the sample mean foot length less than 23 cm is 0.120

Step-by-step explanation:

* Lets explain the information in the problem

- The eighth-graders asked to measure the length of their right foot at

  the beginning of the school year, as part of a science project

- The foot length is approximately Normally distributed, with a mean of

 23.4 cm

∴ μ = 23.4 cm

- The standard deviation of 1.7

∴ σ = 1.7 cm

- 25 eighth-graders from this population are randomly selected

∴ n  = 25

- To find the probability of the sample mean foot length less than 23

∴ The sample mean x = 23, find the standard deviation σx

- The rule to find σx is σx = σ/√n

∵ σ = 1.7 and n = 25

∴ σx = 1.7/√25 = 1.7/5 = 0.34

- Now lets find the z-score using the rule z-score = (x - μ)/σx

∵ x = 23 , μ = 23.4 , σx = 0.34

∴ z-score = (23 - 23.4)/0.34 = -1.17647 ≅ -1.18

- Use the table of the normal distribution to find P(x < 23)

- We will search in the raw of -1.1 and look to the column of 0.08

∴ P(X < 23) = 0.119 ≅ 0.120

* The probability of the sample mean foot length less than 23 cm is 0.120

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Ace Landscape buys 100 shovels for $15 each. Ace sells all 100 shovels at $29.99. What is his profit?
Yanka [14]
$29.99=$30
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