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2 years ago

Pls help! Thanks!!!!!!

Mathematics

2 answers:

garri49 [273]2 years ago

7 0

Y = 4(x) + 7 - since the multiples of x are increasing at a lesser rate than the ones of y, it shows that x needs to be multiplied by a higher value. you could find the value x by plugging in different values <13, then find a common number to add that will give you the y output.

navik [9.2K]2 years ago

5 0

Y=2x+19

I could be wrong

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Children who have lost some baby teeth have better arithmetic skills than children who have not lost any baby teeth. In fact, th

Tems11 [23]

Answer:

B. There is correlation but no direct casual relation, but losing teeth and arithmetic skills.

Step-by-step explanation:

Given:

Correlation between lost of baby teeth and arithmetic skills.

Solution:

Correlation and causality concepts are so used here.

Correlation is the relationship between two variables to get or to predict information.

Correlation is not always causation.

So here the correlation is used to predict the arithmetic skills based on lost teeth.

i.e. More teeth lost more arithmetic skills.

Causality means change in one variable changes value of other variable.

So it gives direct causal relation between the variables.

Here they given relationship between the children lost teeth and arithmetic skills to predict information.

But ,there no actual imply on correlation.

Arithmetic skills can also depends upon third variable.

Hence there is no direct causal relationship between them.

8 0

3 years ago

In a theater there are 15 chairs in the first row, each row has 3 more chairs than the previous

andrew11 [14]

Answer:663

Step-by-step explanation:

The first row is 15,so you have to add three from the first row you and you get 18 and then you keep going and going till you get to the 17th row then you add the numbers together.

5 0

3 years ago

The pans shown are balanced. Use the SubtractionProperty of Equality to find which shapes are equalto one purple pyramid.

Bad White [126]

According to the Subtraction property of equality, the equality of an expression holds true if the same finite number is subtracted from both sides of the equality,

$a=b\Rightarrow a-c=b-c$

Now, observe the given figure carefully.

We will use the above-mentioned property to get rid of the common shapes that exist on both sides. Here, the balance represents equality between both sides.

Consider that the pans are initially balanced. And both sides contain a red cube. So we can subtract or eliminate the red cube and the equality will still hold true.

Similarly, we can eliminate the blue sphere.

At this point, we have the purple pyramid and a yellow diamond on the left side, and on the right side, we have 4 pieces of yellow diamond.

Observe that one piece of yellow diamond is common to both sides, so it can also be eliminated from both sides.

After this, the left side will contain only the purple pyramid while the right side contains 3 yellow diamonds. Since we are always using the subtraction property to eliminate the shapes, the balance must be maintained throughout the process.

At last, there must exist a balance between the left side containing the purple pyramid only, and the right side containing 3 yellow diamonds.

Therefore, it can be concluded that one purple pyramid is equal to 3 yellow diamonds.

6 0

1 year ago

Jennifer is putting together a selection of flowers that has at most 12 flowers in it. She is choosing either roses or carnation

ohaa [14]

Answer:

r + c ≤12

r > 3

c > 2

Step-by-step explanation:

Jennifer is putting together a selection of flowers that has at most 12 flowers in it.

r = number of roses she uses

c = the number of carnations

At also means Less than or equal to.

It is represented by ≤

She is choosing either roses or carnations. She wants to pick at least three roses

r > 3

and at least two carnations.

= c > 2

Therefore, the system of inequality that represents this scenario is written as:

r + c ≤ 12

r > 3

c > 2

7 0

3 years ago

if you’re good with set theory diagrams and word problems please help out with questions 28 and 29!! real answers only please!!

AlexFokin [52]

Answer:

28. Option A is correct

29. Option C is correct

Explanation:

28.

Option C and D are not correct because the intersection of O and X is empty.

As data given, the intersection of O and X is {5, 7}

Option B is not correct because the intersection of O and P includes 1.

1 is not a prime number and therefore is not belonged to P.

=> Only option A is valid.

29.

As the picture shown, the intersection of P and T includes 3 and 4.

=> Complement of the intersection of P and T includes all remaining numbers: 3, 2, 5, 1, 6, 4.

The sum of these numbers is: 3 + 2 + 1 + 5 + 6 + 4 = 21

=> Option C is correct

Hope this helps!

6 0

3 years ago