All categories

3 years ago

I need help in number 2 please !!!

Mathematics

1 answer:

Stolb23 [73]3 years ago

5 0

Factor is it because the numbers begin multiplied are called factor so it will be 3x a factor

You might be interested in

7 A basket has 40 fruits. 10 of them are apples, 25 are oranges and the rest are mangoes

BabaBlast [244]

Answer:

20%

Step-by-step explanation:

as we add 10 +25 = 35

so if we subract 40 from 35 it is 5 so mangoes are 5

_ × 100 =20%

7 0

2 years ago

Write a quadratic function in vertex form whose graph has the vertex

ELEN [110]

Answer:

y = $\frac{1}{2}$ (x - 5)² - 2

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (5, - 2), thus

y = a(x - 5)² - 2

To find a substitute (7, 0) into the equation

0 = a(7 - 5)² - 2

0 = 4a - 2 ( add 2 to both sides )

2 = 4a ( divide both sides by 4 )

a = $\frac{2}{4}$ = $\frac{1}{2}$

y = $\frac{1}{2}$ (x - 5)² - 2 ← in vertex form

4 0

3 years ago

If A(3,4) and B(10,4) are the end points of a diameter of circle "O", what is the area of the circle O

ikadub [295]

Answer:

$\large\boxed{\dfrac{49\pi}{4}}$

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the endpoints of a diameter of a circle.

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points A(3, 4) and B(10, 4):

$d=\sqrt{(10-3)^2+(4-4)^2}=\sqrt{7^2+0^2}=\sqrt{7^2}=7$

Therefore we have the length of the diameter: d = 7

We know: d = 2r. Therefore

$r=\dfrac{7}{2}$

Substitute to the formula of an area:

$A=\pi\left(\dfrac{7}{2}\right)^2=\dfrac{49\pi}{4}$

There is no such answer in the answers to choose.

Apparently you have some error in the coordinates of the endpoints.

8 0

3 years ago

At a butcher shop, Hilda bought 6 1/4 lb of Beef and some pork. She left with 13 1/20 lb of meat. Express the number of pounds

lina2011 [118]

Hilda bought 15.11 lb of pork.

Step-by-step explanation:

Cost of Beef that Hilda bought = 4 17/20 = 4.85 lb

Cost of the total meat she bought = 19 24/25 = 19.96 lb.

To find the number of pounds of pork she bought, subtract.

Number of pounds of pork she bought = 19.96 - 4.85 = 15.11 lb.

8 0

3 years ago

Read 2 more answers

Find the value of x which ABCD must be a parallellogram? x =

aev [14]

$If\ ABCD\ is\ a\ parallelogram,\ then\\\\2x-1=x+3\ \ \ |add\ 1\ to\ both\ sides\\\\2x=x+4\ \ \ \ |subtract\ x\ from\ both\ sides\\\\\boxed{x=4}$

3 0

3 years ago