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3 years ago

If kenedell was born i 2009 feb.17 how old is she in 2040

Mathematics

1 answer:

k0ka [10]3 years ago

7 0

Answer:

Don't subtract exactly or it will be incorrect, you'll have to add the years, and differentiate the leap years

Step-by-step explanation:

30 yrs old

sorry I dont have a shorter method

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The height of a trapezoid is 15m and the midsegment is 32m. What is the area of the trapezoid?

viktelen [127]

The formula is: A=1/2 h (base one + base two)

Plug in your numbers and you will get the area.

6 0

3 years ago

Find the distance between the endpoints (7,8) (4,2) A.10.8 B.2.2 C.6.7 D.14.9

Paha777 [63]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{6.7}}}}}$

Option C is the correct option.

Step-by-step explanation:

Let the points be A and B

Let A ( 7 , 8 ) be ( x₁ , y₁ ) and B ( 4 , 2 ) be ( x₂ , y₂ )

Finding the distance between these points

$\boxed{ \sf{distance \: = \: \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} } }}$

$\dashrightarrow{ \sf{ \sqrt{ {(4 - 7)}^{2} + {(2 - 8)}^{2} } }}$

$\dashrightarrow{ \sf{ \sqrt{ {( - 3)}^{2} + { (- 6)}^{2} } }}$

$\dashrightarrow{ \sf{ \sqrt{9 + 36}}}$

$\dashrightarrow {\sf{ \sqrt{45} }}$

$\dashrightarrow{ \sf{6.7 \: \: units}}$

Hope I helped!

Best regards! :D

6 0

3 years ago

Please please I need help. What is the value of X

natita [175]

Answer:

x = 25

Step-by-step explanation:

Solving

∠CAD = 1/2 ∡ CD
180° - 90° - (2x)° = 1/2 (80°)
2x = 90° - 40° = 50°
x = 25

8 0

2 years ago

Write the following sum using summation notation -2/5+3/6-4/7........11/14

horrorfan [7]

Answer:

$\sum_{n=1}^{10}(-1)^n\left ( \frac{n+1}{n+4} \right )$

Step-by-step explanation:

Given: $\frac{-2}{5}+\frac{3}{6}-\frac{4}{7}+...+\frac{11}{14}$

To write: the given expression using summation notation

Solution:

Summation notation helps to write a long sum as a single expression.

In the summation notation, the variable $\sum$ is called the index of summation.

Let $x_1,x_2,x_3,...,x_n$ denote a set of n numbers.

Then in summation notation,

$x_1+x_2+x_3+...+x_n=\sum_{i=1}^{n}x_i$

$\frac{-2}{5}=(-1)^1\left ( \frac{1+1}{1+4} \right )\\\frac{3}{6}=(-1)^2\left ( \frac{2+1}{2+4} \right )\\\frac{-4}{7}=(-1)^3\left ( \frac{3+1}{3+4} \right )\\.\\.\\.\\\frac{11}{14}=(-1)^10\left ( \frac{10+1}{10+4} \right )\\\therefore \frac{-2}{5}+\frac{3}{6}-\frac{4}{7}+...+\frac{11}{14}=\sum_{n=1}^{10}(-1)^n\left ( \frac{n+1}{n+4} \right )$

3 0

3 years ago

Which is larger 0.6 or 3/4?

podryga [215]

3/4 im pretty sure just do 3 divided by 4 to tell

4 0

3 years ago

Read 2 more answers