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3 years ago

HELPPPPPPP MEEEEEEEeeee

Mathematics

2 answers:

beks73 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

grouping like terms

2a-3a+10b+5b-c+c

-a+15b

Alborosie3 years ago

3 0

Answer:

-a+15b

Step-by-step explanation:

is your answer

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PLEASE HELP! I’m struggling with each part any help will be amazing

Vlad [161]

Answer:

slope: -5/2

y-intercept: (0, 2)

Linear function: y = -5/2x + 2

Step-by-step explanation:

Given points (-2, 7) and (2, -3):

Use these points to solve for the slope of the line using the formula:

m = (y2 - y1)/(x2 - x1)

Let (x1, y1) = (-2, 7)

(x2, y2) = (2, -3)

Substitute these values into the equation:

m = (y2 - y1)/(x2 - x1)

m = (-3 - 7) / [2 - (-2)]

m = -10/ (2 + 2)

m = -10/4 = -5/2

Therefore, the slope of the line in reduced form is m = -5/2.

The y-intercept is the y-coordinate of the point (0, b) where the graph of the linear equation crosses the y-axis of the Cartesian grid. The y-intercept is also the value of y when x = 0.

To solve for the y-intercept, use one of the given points (2, -3) and the slope (m = -5/2), and substitute their values into the slope-intercept form:

y = mx + b

-3 = -5/2(2) + b

-3 = -5 + b

Add 5 to both sides to solve for the y-intercept, b:

-3 + 5 = -5 + 5 + b

2 = b

Given the value of b = 2, it means that the y-intercept is (0, 2).

Therefore, given the slope of -5/2, and the y-intercept, b = 2:

The linear equation in slope-intercept form is: y = -5/2x + 2

Please mark my answers as the Brainliest, if you find this helpful :)

5 0

3 years ago

What is the value of x when f(x)=7? the function or whatever is f (x) =x^3 - 1

pashok25 [27]

Answer:

f ( 7 ) = 342

Step-by-step explanation:

Step 1:

f ( x ) = x³ - 1 Function

Step 2:

f ( 7 ) = 7³ - 1 Input x value

Step 3:

f ( 7 ) = 343 - 1 Exponents

Answer:

f ( 7 ) = 342 Subtract

Hope This Helps :)

4 0

3 years ago

Read 2 more answers

4 is subtracted from r

SIZIF [17.4K]

Answer:

Algebraic expression ;

$r-4$

Step-by-step explanation:

4 is subtracted from r means the same as r decreased by 4

Subtracted = -

$r - 4$

3 0

4 years ago

Read 2 more answers

2.54rounded to nearest tenth

Svetradugi [14.3K]

2.5 Is the answer. It is rounded to the nearest tenth.

6 0

4 years ago

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Select the problems which show the correct answers. (1.12 x 105) (6.06 x 105) Answer: 6.79 x 1010 (2 x 101)(3.0 x 101) Answer: 6

Arisa [49]

Since multiplication is commutative, we can rearrange the problem:
$(1.12*10^5)(6.06*10^5) = (1.12*6.06)(10^5*10^5)$
Using the properties of exponents, we have:
$(1.12*6.06)(10^10)
\\=6.7872*10^10$

Again, multiplication is commutative, so we rearrange the problem; then we use the product property of exponents:
$(2*10^1)(3*10^1)
\\=(2*3)(10^1*10^1)
\\=6*10^2$

$(2.775*10^-^4)(4.775*10^4)
\\=(2.775*4.775)(10^-^4*10^4)
\\=(2.775*4.775)(10^0)
\\=(2.775*4.775)(1)
\\=2.775*4.775=13.250625=1.3250625*10^1$

$5(8.14*10^2)=(5*8.14)(10^2)=40.7*10^2=4.07*10^3$

6 0

4 years ago

Read 2 more answers