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3 years ago

13

joy is helping her father to build a rectangular deck that measures 14 feet by 19 feet find the area of the deck using a mental

strategy explain your thinking

2 answers:

erik [133]3 years ago

8 0

You do 14x19. that would be your strategy

LenKa [72]3 years ago

3 0

Like The other person said you just have to multiply and if it's his time or each in something mean to multiply or divide

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Jennifer can clean her room 2 hours, while John can clean the same room in 5 hours. How many hours would it take for them to cle

True [87]

For 1 hour:
- Jennifer can clean 1/2 of her room;
- John cal clean 1/5 of her room.
Both can clean: 1/2 + 1/5 = 5/10 + 2/10 = 7/10
1 hour -------- 7/10
x hours---------- 1
x = 1 : 7/10 = 10/7 h = 1.42857 h ( or 1 h 25 min 43 s )

7 0

3 years ago

Read 2 more answers

The table below shows selected points from a function.

FrozenT [24]

Answer:

<em>True </em>

Step-by-step explanation:

<em>Rate Of Change Of Functions </em>

Given a function y=f(x), the rate of change of f can be computed as the slope of the tangent line in a specific point (by using derivatives), or an approximation by computing the slope of a secant line between two points (a,b) (c,d) that belong to the function. The slope can be calculated with the formula

$\displaystyle m=\frac{d-b}{c-a}$

If this value is calculated with any pair of points and it always results in the same, then the function is linear. If they are different, the function is non-linear.

Let's take the first two points from the table (1,1)(2,4)

$\displaystyle m=\frac{4-1}{2-1}=3$

Now, we use the second and the third point (2,4) (3,9)

$\displaystyle m=\frac{9-4}{3-2}=5$

This difference in values of the slope is enough to state the function is non-linear

Answer: True

6 0

3 years ago

The volume of a cylinder with a height of 25cm and a radius of 20cm

pentagon [3]

Answer:

5652 cm³

Step-by-step explanation:

V = 2πr² + 2πrh

= (2 × 3.14 × 3.14 × 20 ×20) + (2 × 3.14 × 20 × 25)

= 2512 + 3140

= 5652 cm³

7 0

3 years ago

What is 0.13095238095 as a fraction

Naddika [18.5K]

Answer: 13095238095/100000000000

Step-by-step explanation: To write 0.13095238095 as a fraction you have to write 0.13095238095 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

0.13095238095 = 0.13095238095/1 = 1.3095238095/10 = 13.095238095/100 = 130.95238095/1000 = 1309.5238095/10000 = 13095.238095/100000 = 130952.38095/1000000 = 1309523.8095/10000000 = 13095238.095/100000000 = 130952380.95/1000000000 = 1309523809.5/10000000000 = 13095238095/100000000000

7 0

3 years ago

Simplify the expression √100/49

Mekhanik [1.2K]

Answer: 10/7

Step-by-step explanation:

The square root of 100 is 10 and the square root of 49 is 7 so the answer will be 10/7

4 0

3 years ago