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3 years ago

Please help !! What is the area of the trapezoid shown below? 4 5

Mathematics

2 answers:

Rashid [163]3 years ago

7 0

Answer:

the area of the trapezoid is (8 + 4).3/2 = 18

dangina [55]3 years ago

3 0

Answer:

Step-by-step explanation:

khan

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What is the answer of these questions

hjlf

Answer:

What are you talking about,you need to be more specific

Step-by-step explanation:

So you need to tell us what you are talking about ok

5 0

3 years ago

Two canoes travel down a river, starting at 9:00 a.M. One canoe travels twice as fast as the other. After 4.5 hours, the canoes

Vedmedyk [2.9K]

Answer:

$v_1=3.33 \ miles/hour\\v_2=6.66 \ miles/hour$

Step-by-step explanation:

<u>Constant Speed Motion </u>

When the object travels the same distances in the same period of time, the speed is constant and is can be calculated as

$\displaystyle v=\frac{x}{t}$

where x is the distance and t is the time

There are two canoes traveling at speeds v1 and v2. One of them has twice the speed as the other. Let's say

$v_2=2v_1$

When t hours have passed, the canoes have traveled x1 and x2 respectively.

$x_1=v_1t$

$x_2=v_2t$

Since

$v_2=2v_1$

Then

$x_2=2v_1t$

The distance between them is

$X=x_2-x_1=2v_1t-v_1t$

$X=v_1t$

That distance is known and equals 11.25 miles, thus

$v_1t=15$

Solving for v1 and using t=4.5 hours

$\displaystyle v_1=\frac{15}{4.5}$

$v_1=3.33 \ miles/hour$

$v_2=2\times 3.33$

$\boxed{v_2=6.66 \ miles/hour}$

6 0

3 years ago

One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant rate from 8 p.m. to midnight. At mi

Diano4ka-milaya [45]

Let y be the temperature
Let m be the rate of temperature drop in degrees per hour
Let x be the number of hours elapsed since 8PM
The initial temperature (at x = 0) is 0
y = mx
Four hours from 8 PM, the temperature was -16.8 degrees
-16.8 = m(4)
m = -4.2 degrees per hour
At 9PM, one hour will have elapsed.
y = -4.2(1)
y = -4.2 degrees

7 0

3 years ago

UNESS has a contribution margin ratio of 0.25. UNESS operations income was sh.100 000blast year when the sales totaled sh. 1 000

artcher [175]

Answer:

D sh.225000

Step-by-step explanation:

Calculation to determine UNESS fixed expense?

Using this formula

Fixed expense=(Total sales - Operating income)*Contribution margin ratio

Let plug in the formula

Fixed expense=($1,000,000-$100,000)*0.25

Fixed expense=$900,000*0.25

Fixed expense=$225,000

Therefore UNESS fixed expense is $225,000

5 0

3 years ago

A student took a survey of the class. There are 42 students in the class. The student surveyed favorite foods. 10 said hamburger

8_murik_8 [283]

Answer:

52.38%

Step-by-step explanation:

Given that,

Total number of students in the class is 42

Out of 42, 10 like hamburgers, 22 like pizza, 8 like french fries, and 2 like salad.

We need to find the percentage of the class chose pizza. There are 22 student who like to have pizza. Required percentage is given by :

$P=\dfrac{22}{42}\times 100\\\\P=52.38\%$

So, 52.38% of students chose pizza.

7 0

3 years ago