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3 years ago

Can someone help pleaseee

Mathematics

2 answers:

MA_775_DIABLO [31]3 years ago

6 0

Answer:

4/5

Step-by-step explanation:

luda_lava [24]3 years ago

6 0

Answer:

$P(blue)=\frac{5}{24} \\ P(yellow)=\frac{7}{24} \\ P(blue \: \cup \: yellow)=\frac{5 + 7}{24} = \frac{12}{24} \\ P(blue \: \cup \: yellow)= \frac{1}{2}$

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Write an equation, in point-slope form, of the line that passes through the point (4, -3) with a slope -7.

Ilya [14]

Answer:

point-slope form:

y - 10 = -4(x - -2)

y - 10 = -4(x + 2)

---

slope-intercept form:

y - 10 = -4x - 8

y = -4x - 8 + 10

y = -4x + 2

Step-by-step explanation:

6 0

3 years ago

R=5(C/A−0.3) solve for r

Pie

Answer:

R=(5C/A)-1.5

Step-by-step explanation:

R=5(C/A-0.3)

1) Distribute the 5 to C/A and -0.3

R=5C/A-1.5

The distributive property says a(b+c) = ab+ac

Let me know if you have any confusion :)

7 0

3 years ago

Solve for x algebra help

mafiozo [28]

Answer:

x=24

Step-by-step explanation:

Hi there!

We are given the following proportion:

$\frac{2}{10}=\frac{3}{x-9}$

And we want to solve for x.

First, let's reduce $\frac{2}{10}$ , as reducing fractions typically makes the process easier

$\frac{2}{10}$ is the same as $\frac{1}{5}$

So:

$\frac{1}{5}=\frac{3}{x-9}$

We can't do anything to $\frac{3}{x-9}$ , but that's okay.

Now we can cross multiply, as this is a proportion

Multiply x-9 by 1 and 3 by 5

1(x-9)=3(5)

Multiply

x-9=15

Now this is an equation

Our goal is to isolate x on one side

So let's add 9 to both sides to remove it from the left side

x-9=15

+9 +9

_________

x=24

Hope this helps!

7 0

3 years ago

Read 2 more answers

What is the standard deviation of the data set 21 ,6,18,21,20,14,19

VashaNatasha [74]

21 is the answer i think idk try dividing them all or finindng something or look up how to find a standard deviation

8 0

3 years ago

The sides of a square all have a side length of y. Write a simplified area function in terms of y for a rectangle whose length i

gizmo_the_mogwai [7]

The simplified area function in terms of y for a rectangle is $f(y)=2 y^{2}+4 y$

Solution:

Given that length of each side of a square = y

Need to determine area of rectangle whose length is twice the length of the square and width is 2 units longer that the side length of square

Length of rectangle = twice of side length of square = $2 \times y = 2y$

Width of rectangle = 2 + side length of square = 2 + y = y + 2

$\text { Area of rectangle }=\text { length of rectangle } \times \text { width of rectangle.}$

On substituting length and width in formula for area, we get

$\text { Area of rectangle }=2 y \times (y+2)=2 y^{2}+4 y$

Hence function $f(y)=2 y^{2}+4 y$ is represents area of required rectangle.

3 0

3 years ago