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2 years ago

Please help I was supposed to do this yesterday If x=-4 and y= 9/2

Mathematics

2 answers:

tekilochka [14]2 years ago

7 0

Answer:

1/6( $3x^{2}$ +4y)

Step-by-step explanation:

masha68 [24]2 years ago

3 0

The answer is 11 if you plug in -4 for x and 9/2 for y

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6 fluid ounces per day. Express this rate of flow in cubic meters per year.

stealth61 [152]

Answer:

0.06 cubic meters per year

Step-by-step explanation:

3 0

3 years ago

Evaluate 8 - 4.7y - x, when y = -1 and x = 2. A. -10.7 B. -9.7 C. 9.7 D. 10.7

seraphim [82]

It’s D, 10.7

8 - (4.7 x (-1)) - 2 = 10.7

5 0

3 years ago

The Venn diagram shows the results of two events resulting from rolling a number cube.

gulaghasi [49]

Answer: $P(A\cap B)=\frac{1}{3}$

$P(A)=\frac{1}{3}$

$P(B)=1$

$P(A|B)=\frac{1}{3}$

Step-by-step explanation:

From the given figure it can be seen that

Total number on cube= n(S)=6

Intersection of A and B = n(A ∩ B)= 2

Therefore,

$P(A\cap B)=\frac{n(A\cap B)}{n(s)}=\frac{2}{6}=\frac{1}{3}$

Also, The number of elements in A = 2

Therefore,

$P(A)=\frac{n(A)}{n(s)}=\frac{2}{6}=\frac{1}{3}$

Similarly, The number of elements in B= 6

Therefore,

$P(B)=\frac{n(B)}{n(s)}=\frac{6}{6}=1$

The formula to find the conditional probability is given by :-

$P(A|B)=\frac{P(A\cap B)}{P(B)}\\\\\Rightarrow P(A|B)=\frac{\frac{1}{3}}{1}=\frac{1}{3}$

4 0

4 years ago

Read 2 more answers

Write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. Show all your work, including the poi

Dennis_Churaev [7]

Answer:

$y=\frac{5}{7}x+\frac{135}{7}$

Step-by-step explanation:

You only need two points on a line to find the equation for that line.

We are going to use 2 points that cross that line or at least come close to. You don't have to use the green points... just any point on the line will work. You might have to approximate a little.

I see ~(67.5,67.5) and ~(64,65).

Now once you have your points, we need to find the slope.

You may use $\frac{y_2-y_1}{x_2-x_1}$ where $(x_1,y_1) \text{ and } (x_2,y_2)$ are points on the line.

Or you can line up the points vertically and subtract then put 2nd difference over 1st difference.

Like this:

( 64 , 65 )

-( 67.5, 67.5 )

--------------------

-3.5 -2.5

So the slope is -2.5/-3.5=2.5/3.5=25/35=5/7.

Now use point-slope form to find the equation:

$y-y_1=m(x-x_1)$ where $m$ is the slope and $(x_1,y_1)$ is a point on the line.

$y-65=\frac{5}{7}(x-64)$

Distribute:

$y-65=\frac{5}{7}x-\frac{5}{7}\cdot 64$

Simplify:

$y-65=\frac{5}{7}x-\frac{320}{7}$

Add 65 on both sides:

$y=\frac{5}{7}x-\frac{320}{7}+65$

Simplify:

$y=\frac{5}{7}x+\frac{135}{7}$

6 0

3 years ago

Factor 3M^2+11MN+6N^2

antoniya [11.8K]

3M^2 + 11MN + 6N^2 = 3M^2 + 2MN + 9MN + 6N^2

= M(3M + 2N) + 3N(3M + 2N) = (3M + 2N)(M + 3N)

Answer: 3M^2 + 11MN + 6N^2 = (3M + 2N)(M + 3N)

8 0

3 years ago