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3 years ago

PLS HELP MEEEE

Mathematics

2 answers:

balandron [24]3 years ago

7 0

Answer:

Answer is D 2x^3 + 7x^2 - 23x + 12

Step-by-step explanation:

(x^2 + 5x - 4)(2x - 3)

Expand by multiplying each term in the first expression by each term in the second expression.

The easy way would be multiplying the first expression by 2x then set those numbers off to the side.

Then multiply the first expression by -3 and set those numbers off to the side as well.

Then add the numbers you put off to the side together.

This should result in: 2x^3 - 3x^2 + 10x^2 - 15x - 8x + 12

Combine the alike terms together

=2x^3 + 7x^2 -23x + 12

Nonamiya [84]3 years ago

6 0

Answer: amongus

Step-by-step explanation:

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X+y=5 3x-4y=8 please i need the steps

grandymaker [24]

Answer:

x + y = 5

3x - 4y = 8

3x + 3y = 15

3x - 4y = 8 -

7y = 7

y = 1

x + y = 5

x + 1 = 5

x = 4

x = 4

y = 1

Hope it helps!

6 0

2 years ago

Is - 11>-16 a true pr false statement

Elina [12.6K]

Answer:

True

Step-by-step explanation:

-11 is greater than -16

6 0

3 years ago

PLS EXPLAIN IN FULL DETAIL

elena-14-01-66 [18.8K]

Answer:

1.50x=18

x=12

Step-by-step explanation:

You have to divide 1.50 on both sides and 1.50x/1.50= x and 18/1.50=12 so x=12

3 0

3 years ago

Read 2 more answers

Please help The diagram shows a 5ft student standing near a tree

Novosadov [1.4K]

Answer:

25 ft

Step-by-step explanation:

The diagram shows two triangles that are similar. Similar triangles have equal angles and sides that are proportional to each other. Since the base of each triangle is given, we can find the proportion of the sides:

$\frac{smaller}{larger}=\frac{8}{40}=\frac{1}{5}$

Given the ratio of the smaller to larger triangle, we can set up a proportion to find the missing height of the larger triangle:

$\frac{1}{5}=\frac{5}{x}$ , where 'x' represent the height of the tree

cross-multiply: x = (5)(5) or 25 ft

8 0

3 years ago

Divide 260 in the ratio 1:3

den301095 [7]

The divided will 65 and 195.

1:3 =260
1x+3x =260
Add 1x and 3x
4x=260
Divide the four on both sides
4x/4=260/4
x=65
Now find the one for 3 by multiplying
1x=65
3x=195

5 0

3 years ago