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3 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

Mathematics

1 answer:

Klio2033 [76]3 years ago

4 0

Answer:

Solve for each for X.

Step-by-step explanation:

A. 7+2ax=13

1a. Subtract 7 from both sides, 2ax=6

2a. Divide both sides by 2, ax=3

3a. Divide both sides by a, x=3/a

B. -ax-20=-14

1b. flip the signs, ax+20=14

2b. subtract 20 on both sides, ax=-6

3b. divide both sides by a, x=-6/a

C. 4= (6/a)x+5

1c. Multiply both sides by a, 4a=6x+5a

2c. Subtract 5a from both sides, -a=6x

3c. Divide both sides by -1, a=-6x

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A solar fire starter is designed so that its cross-sections are in the shape of a parabola. Given that the diameter of the solar

Fofino [41]

Answer:

$x=0.04m$

Step-by-step explanation:

From the question we are told that:

Diameter $d=24cm$

Radius $r=24/2=>12cm$

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Generally the equation for depth is mathematically given by

$r^2=4d_gx$

Therefore

$x=\frac{r^2}{4d_g}$

$x=\frac{12^2}{4*9}$

$x=4cm$

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3 years ago

I need help I don’t know how to do this

vfiekz [6]

Answer:

Step-by-step explanation: The bigger triangle is 6 times bigger than the smaller one.

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3 years ago

What is the probability of rolling a pair of dice and not rolling the same number?

Aleksandr [31]

Answer:

5/6

Step-by-step explanation:

The "first" dice can land on any number, so there are 6 choices. The "second" can not be the same number as the first one. So there are 5 choices. We multiply to get 6*5=30 ways to roll a different number. There are 6*6 total ways so the probability is 30/36 which simplifies to 5/6.

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3 years ago

A report states that 32% of New Jersey residents think that a nice car costs too much money. Which element should probably be be

SOVA2 [1]

You should probably define what makes a car "nice", and also quantify the "too much money".

Qualitative words are often not welcomed in maths/science in general, because people can disagree on their meaning.

So, for example, if you change the sentence into

"A report states that 32% of New Jersey residents think that mercedes cars cost 30% more than they should"

Then everything would be "fixed", and there is no ambiguity anymore

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3 years ago

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kvv77 [185]

18 !

27/x = 12/8
Cross multiply and then solve

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3 years ago