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3 years ago

HELP ME PLEASEEEEEEEEEE

Mathematics

2 answers:

OleMash [197]3 years ago

5 0

Answer:

x= 8

please mark as brainlist if this helps :)

Tanzania [10]3 years ago

5 0

Answer:

x=8

Step-by-step explanation:

I. firstly in algebra when a constant and a variable are together it means they are multiplying.

ii.so they are looking for 3 multiplied by what will give you 24.

iii.this is simple if you know the multiplication table.So the answer is 3 x 8= 24

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Benny brought five new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there a

VMariaS [17]

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2 years ago

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Boys to girl 11;9 there are 124 more boys what is the total number of students

Deffense [45]

$(124 \div 2) \times (11 + 9) = 1240$
total number of students : 1240

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3 years ago

A particle moves with velocity function v(t) = 2t^2 - 3t - 3, with v measured in feet per second and t measured in seconds. Find

SashulF [63]

V(t) = 2t^2 - 3t - 3

for an acceleration a(t),
a(t) = d (v(t)) / d t
a(t) = 4t - 3

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3 0

3 years ago

The area of the triangle formed by points of intersection of parabola y=a(x−3)(x+2) with the coordinate axes is 10. Find a if it

ICE Princess25 [194]

Answer: a = 4

Step-by-step explanation: Area of a triangle is calculated as: $A_{t}=\frac{b.h}{2}$ .

The triangle formed by the parabola has base (b) equal to the distance between the points where the graph touches x-axis and height (h) is the point where graph touches the y-axis.

The points on the x-axis are the roots of the quadratic equation:

a(x-3)(x+2)=0

(x-3)(x+2)=0

x - 3 = 0

x = 3

x + 2 = 0

x = -2

So, base is the distance between (-2,0) and (3,0).

Since they are in the same coordinate, distance will be:

b = 3 - (-2)

b = 5

Area of the triangle is 10. So constant a is

$10=\frac{5.a}{2}$

5a = 10.2

a = 4

The constant a of the function y = a(x-3)(x+2) is 4.

7 0

2 years ago

The radius of a circle is 6 miles. What is the circle's area?<br> Use 3,14 for pi

ICE Princess25 [194]

Answer: 28.6 miles

Step-by-step explanation:

A = pi r^2

A = 3.14 (3)^2

Now multiply 3.14(3)^3

Your answer is 28.26

* Radius is 1/2 of the diameter.

I believe this is right, but im not sure.

Hope it helps :)

4 0

3 years ago