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3 years ago

2+2 = ? can someone help me with chemistry, no one is answering :( pls help

Mathematics

2 answers:

Eva8 [605]3 years ago

7 0

Answer:

Is 4 Its easy just add 2 times 2

Shtirlitz [24]3 years ago

3 0

Answer:

22 is the answer

Step-by-step explanation:

you welcome

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3. Rectangle ABCD is shown on the coordinate grid below.

VMariaS [17]

Answer:

A. 8 units

Step-by-step explanation:

Coordinates of A = (-2, -2)

Coordinates of C = (5, 2)

Use distance formula, $d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$ to calculate the length of diagonal $\overline{AC}$ .

Let,

$A(-2, -2) = (x_1, y_1)$

$C(5, 2) = (x_2, y_2)$

$d = \sqrt{(5 -(-2))^2 + (2 -(-2))^2}$

$d = \sqrt{(7)^2 + (4)^2}$

$d = \sqrt{49 + 16} = \sqrt{65}$

$d = 8.1$ (nearest tenth)

Therefore, the closest to the length of diagonal $\overline{AC} = 8 units$

4 0

3 years ago

What is the value of the expression when a=18 and b=14 ?

Ivenika [448]

Answer:

1) 1/2 (18+14) - (18-14)^2

2) 1/2 (32) - (4)^2

2) 16 - 16

3) 0

Therefore, the answer is D

Step-by-step explanation:

Hope this helps :D

5 0

3 years ago

Ruby ate 1/5 of a pie . If there was 10 slices of pie , how many did she eat . SHOW YOUR WORK

Ksju [112]

Ruby eats two slices of pie

Fraction generally represents a part of the whole. The number present in the upper side is called as numerator and the number present below is called as denominator. Fraction can also be represented as a decimal or percentage when required.

Fraction of pie Ruby ate = 1/5

Number of slices present in the pie = 10

numerical value of a fraction = fraction x total number

So, total number of slices of pie that Ruby ate = 10 x 1/5 = 2

Therefore, Ruby eats two slices of pie.

Ruby ate 1/5 of a pie and if there was 10 slices of pie, it implies Ruby eats two slices of pie.

To learn more about fraction refer here

brainly.com/question/11562149

#SPJ1

5 0

1 year ago

15. Ankita bought 20 copy for Rs. 25 each. She got profit of Rs.200 while selling it. Find selling price of the copies. no

goblinko [34]

Answer:

SP=Rs.700

Step-by-step explanation:

cost price of a copy=R's.25

cost price of 20copy=20×25=Rs.500

profit=Rs.200

selling price of 20 copies=?

Now, we know that,

profit=sp-cp

or, 200=sp-500

or, 200+500=sp

thus, SP=Rs.700

Hence, the selling price of 20copies is 700.

8 0

3 years ago

Which expression both gives the average rate of change of the function h(x)

liubo4ka [24]

Answer:

Step-by-step explanation:

The average rate of change of a function over an interval a ≤ x ≤ b is found by:

$\frac{f(b)-f(a)}{b-a}$

Here, a is 0 and b is 3, so: $\frac{f(3)-f(0)}{3-0}=\frac{f(3)-f(0)}{3}$

Just plug in 3 for the first term and 0 for the second term in the numerator:

- First term: $\frac{1}{2} (3^{3+\frac{1}{2} })+3=\frac{1}{2} (3^{3\frac{1}{2} })+3$

- Second term: $\frac{1}{2} (3^{0+\frac{1}{2} })+3=\frac{1}{2} (3^{\frac{1}{2} })+3$

So, the final answer is:

$\frac{[\frac{1}{2} (3^{3\frac{1}{2} })+3]-[\frac{1}{2} (3^{\frac{1}{2} })+3]}{3}$

Thus, the answer is D.

Hope this helps!

5 0

3 years ago