All categories

3 years ago

Please anyone I’m desperate

Mathematics

2 answers:

poizon [28]3 years ago

7 0

Step-by-step explanation:

calm down ! just breathe.

these are totally simple additions and one also very simple subtraction to make.

you know that you can combine terms based on the same variable, right ?

3a + 9a = 12a

7b - b = 6b

the result is then

12a + 6b, so B is the right answer.

this bases already on the same principle of actual numbers.

2×3 + 5×3 = 7×3 because this is also

(2 + 5) × 3

6×5 + 6×3 = 6×8 because this is also

6 × (5 + 3)

7×8 - 4×8 = 3×8 because this is also

(7 - 4) × 8

and so on.

Savatey [412]3 years ago

3 0

Answer:

the answer is B) 12a+6b

Step-by-step explanation:

3+9=12 so 3a+9a=12a,

7-1=6 so 7b-(1)b=6b

You might be interested in

Clara writes the following proof for the theorem:if the diagonals of a quadrilateral bisect each other

tekilochka [14]

well, for a square the diagonals do bisec each other, they cut each other in two equal halves.

and for a rectangle, they do as well, mind that a square is a rectangle with all equal sides anyway.

wait just a second, for a parallelogram, they do bisect as well.

hold the mayo, for a rhombus they do too, what the dickens is going on?

well, what do they all those have in common?

they're all quadrilaterals, but, they all have two pairs of parallel sides.

mind you that, a kite is also a quadrilateral, however, it doesn't have all equal sides and the diagonals do not bisect each other, and yes, it has no pairs of parallel sides.

6 0

3 years ago

Read 2 more answers

Select the equation of the line that passes through the point (5,7) And is perpendicular to the line X equals four

GREYUIT [131]

X = 4 is a vertical line and only a horizontal line can be perpendicular to it.
Horizontal lines equations are of the form y = #
and if it passes through the point (5, 7), then y = 7 is the answer.

8 0

4 years ago

Katherine is landscaping her home with juniper trees and pansies. She wants to arrange 15 pansies around each of 8 trees. Each t

garik1379 [7]

The expression that signifies Katherine’s final cost F= P + T= $466

<h3>Calculation of final cost</h3>

The number of pansies to be arranged around each tree = 15 pansies

The cost of pansies(P) = 15 × 8 × 2.50 = $300

The number of juniper trees available = 8

The cost of the trees available(T) = 8 × 20.75= $166

Therefore Katherine's final cost(F)= $300 + $166 = $466

The expression to find Katherine’s final cost = F= P + T

Learn more about addition here:

brainly.com/question/24536701

#SPJ1

6 0

2 years ago

A line intersects the points (-23, -17) and (-13, -7). Find the slope of the line.

dolphi86 [110]

The slope of a line through points $A(x_1, y_1)$ and $B(x_2, y_2)$ is :

$\displaystyle{ \frac{y_2-y_1}{x_2-x_1}$

or

$\displaystyle{ \frac{y_1-y_2}{x_1-x_2}$ ,

it is the same thing, BUT it it always y's over x's and always in the same order of 1 and 2:

don't write: $\displaystyle{ \frac{y_1-y_2}{x_2-x_1}$

--------------------------------------------------------------------------------------------------

The slope of the line through the points (-23, -17) and (-13, -7) is :

 $\displaystyle{ \frac{-17-(-7)}{-23-(-13)}= \frac{-17+7}{-23+13}= \frac{-10}{-10}=1$


Answer: 1

3 0

4 years ago

Select all numbers that are rational.

8_murik_8 [283]

Answer:

1,4,5,2

Step-by-step explanation:

because they r rational

8 0

3 years ago