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3 years ago

Help please will give all my points to you help me please qorth 100 points

Mathematics

2 answers:

Maksim231197 [3]3 years ago

7 0

Answer:

i think its true

steposvetlana [31]3 years ago

3 0

Answer:

Your answer should be True!

Step-by-step explanation:

Both correspond with each-other

5/7 A minute with the rate of 5/7

5/7 with the ration of 5:7

I am pretty sure although I may be incorrect If I am right please give me brainiest Thanks and Hope I helped!!! <3

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Please help me find the missing side !

Vadim26 [7]

Answer:

x=14 and y=7

Step-by-step explanation:

This is a 30-60-90 triangle

So in terms of x it would be $x-x\sqrt{3} -2x$

If across the 60 is $7\sqrt{3}$ then y would be 7 which is across the 30 degrees

And x would be 14 because 2(7)=14

7 0

3 years ago

When calcium metal (Ca) reacts with oxygen gas (O2), it produces the ionic compound calcium oxide (CaO). Write the balanced equa

Vanyuwa [196]

Step-by-step explanation:

Hey there! Down here :D

$\bf{Ca + O_2 \longrightarrow CaO}$

Now , let's balance it by Multiplying 2 on Calcium Side.

$\sf{2Ca + O_2 \longrightarrow 2CaO}$

Is the Required Equation.

Hope it helps :)

<h3>Redox Reaction: Is it?</h3>

Yes, this is because:-

$\sf{2Ca + O_2 \longrightarrow 2CaO}$

Here, Calcium acts as Reducing Agent
And Oxygen is oxidizing agent.
And also, Cao gets oxidized.

It is also a Combination reaction.

$\sf{A + B \longrightarrow AB}$

Here A is Calcium
Here B is Oxygen.

6 0

4 years ago

90 questions got 18 wrong what's the percent for correct

Anestetic [448]

You divide 18 by 90 and get .2 then multiply it by 100 and get 20. Then you subtract 20 from 100 and get 80. You got 80% correct.

5 0

3 years ago

for every 14 ice-cream cones you buy, you get 2 free. how many free ice-cream cones will you get if you buy 56 cones?

AfilCa [17]

You will get 8 ice cream cones

6 0

3 years ago

0=x^2-8x-32 solve by completing the square

Tasya [4]

Answer:

x = 4.65 or x = -0.65 (to 2 d.p)

Step-by-step explanation:

To complete the square, use the formula x² + bx + c = (x + b/2)² - (b/2)² + c

In this case, x² - 8x - 32 = (x - 4)² - 16 - 32
This simplifies to (x - 4)² - 48 = 0

To solve this:

First, add 48 to both sides → (x - 4)² = 48
Next, square root both sides → x - 4 = ± √48 (remember that the square root of a number always has a positive and negative value)
Finally, add 4 to both sides → x = 4 ± √7

x has 2 solutions

x = 2 + √7 or x = 2 - √7

x = 4.65 or x = -0.65 (to 2 d.p)

Hope this helps!

4 0

2 years ago

Read 2 more answers