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2 years ago

Can anyone help? Will give Brainly + 22 pts.

Mathematics

1 answer:

Volgvan2 years ago

4 0

Answer:

4 and 19

Step-by-step explanation:

One number : 4x+3 (this is 3 more than 4 times x)

Another number: x This is tricky because the main number for comparison is "another number", which is x

Sum of the #s is 23: Means add them and = 23, so

x+(4x+3) = 23

5x+3=23

5x=20

x=4 and the other # is 4x+3, so 4(3)+3=19

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Seventy-five balls numbered from 1 to 75 are placed in an urn. One ball is randomly drawn from the urn. What is the probability

kramer

75-31= 44
44/75= 0.58666 or 58.7%

Subtract 31 from 75 since we're figuring out greater than or "equal to" we want to include the number 32 in our equation. If it was only "greater than" 32 then we'd subtract 32 from 75. Then you divide that number(44) by 75, which is all the possible outcomes you could have in this scenario. Move the decimal two places to the right to make it a percentage and you've got your answer.

6 0

3 years ago

What’s is part A?? .....

bixtya [17]

Answer:

A. 3

B. 4

C. 1

D. 2

Step-by-step explanation:

Consider all equations:

A. $y=x^2 -6x+8$

This is the equation of parabola with vertex at point

$x_v=\dfrac{-b}{2a}=\dfrac{-(-6)}{2\cdot 1}=3\\ \\y_v=3^2-6\cdot 3+8=9-18+8=-1$

The y-intercept is at point

$x=0\\ \\y=0^2-6\cdot 0+8=8$

Since

$x^2 -6x+8=x^2-4x-2x+8=x(x-4)-2(x-4)=(x-2)(x-4)$ ,

the x-intercepts are at points (2,0) and (4,0)

The leading coefficient is 1 > 0, then the parabola opens upwards.

Hence, the graph of this parabola is 3.

B. $y=(x-6)(x+8)$

This parabola has two x-intercepts at points (6,0) and (-8,0).

The leading coefficient is 1 > 0, then the parabola opens upwards.

The only possible choice is parabola 4.

C. $y=(x-6)^2+8$

This parabola has the vertex at point (6,8), opens upwards, therefore does not intersect the x-axis.

The graph of this parabola is 1.

D. $y=-(x+8)(x-6)$

This parabola has two x-intercepts at points (6,0) and (-8,0).

The leading coefficient is -1 > 0, then the parabola opens downwards.

The only possible choice is parabola 2.

4 0

2 years ago

Read 2 more answers

Help!! For first and second please

jenyasd209 [6]

Answer:

it goes al the way up to 15 and it stops at 5 and the 8 makes the green house

5 0

1 year ago

Can someone help please

Pepsi [2]

Answer:

A: 5

B: 6

C: 3x^2 - 2x

D: 8

E: 22

Step-by-step explanation:

A: (-1)^2 + 4 = 5

B: (-4)^2 +4 = 16

2 x (-3) -4 = -10,

16-10=6

C: 3(x^2 + 4) = 3x^2 + 12

3x^2 + 12 -2x -4, simplify

3x^2 - 2x

D: g(3) = 2*3 -4 = 2

f(2) = 2^2 +4 = 8

E: f(3) = 3^2 + 4 = 13

g(13) = 2*13 - 4 = 22

6 0

2 years ago

Ms. Boucher has a cactus at home that grows 4.5 centimeters (cm) every week. It is now 12 cm. In how many weeks will it reach 48

Lisa [10]

Answer:

1. 4.5x

2. 4.5x+12=48

3. x=8

Step-by-step explanation:

4.5(8)+12=48

36+12=48

48=48

5 0

2 years ago

Read 2 more answers