Please help me it’s on probability

Mathematics

1 answer:

choli [55]3 years ago

7 0

Answer:

C--- 15% of all students in grade 6 at HACS are below grade level in math

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Simplify (x^2-8x+2) - (3x^2+x-1)

REY [17]

Answer:

−2x^2 − 9x + 3

Hit Brainliest if this was helpful! :)

5 0

2 years ago

On a cross-country trip, a car uses 55 gallons of gas for every 120120 miles it travels. How many gallons of gas does the car u

Molodets [167]

Answer:

For 600600 miles, it will use

(600600*55)/120120 = 275 gallons

Using 3030 gallons, it can travel

(3030*120120)/55 = 6617520 miles

4 0

3 years ago

I WILL GIVE BRAINLIEST<br> Answer must be simplified<br> 4x ≤ 12

alina1380 [7]

Answer: x ≤ 3

Step-by-step explanation:

4x ≤ 12

divide each side by 4

x≤3

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3 years ago

Calculate the area of the triangle with the following vertices (3, -7), (6, 4), (-2, -3)

Monica [59]

Answer:

$\boxed{\mathsf{A} \triangle = \red{\dfrac{67}{2}u.a}}$

Step-by-step explanation:

Let's follow up with the solution. Considering a triangle with the vertices $\mathsf{A(x_A, y_A)}$ , $\mathsf{B(x_B, y_B)}$ and $\mathsf{C(x_C, y_C)}$ , have a look at the representation in the cartesian plan.

From this representation we can say that the area (A) of a triangle through the knowledge of <u>analytical geometry</u> is given by the determinant of the vertices divided by two, mathematically,

$\mathsf{A} \triangle = \dfrac{\left| \begin{array}{ccc} \mathsf{x_A} & \mathsf{y_A }& 1 \\ \mathsf{x_B} & \mathsf{ y_B} & 1 \\ \mathsf{ x_C} & \mathsf{ y_C} & 1 \end{array} \right|}{2}$

So, applying this knowledge we're going to have,

$\mathsf{A} \triangle = \dfrac{\left| \begin{array}{ccc} 3 & -7 & 1 \\ 6 & 4 & 1 \\ -2 & -3 & 1 \end{array} \right|}{2}$

$\mathsf{A} \triangle = \dfrac{1}{2}\left[ \left.\begin{array}{ccc} 3 & -7 & 1 \\ 6 & 4 & 1 \\ -2& -3 & 1 \end{array} \right| \begin{array}{cc} 3 & -7 \\ 6 & 4 \\ -2 & -3 \end{array} \right]$