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Mice21 [21]
3 years ago
15

Which of the following is equivalent to  (3x-1)(5x+4) ? Select all that apply.

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
8 0
The answer is 15x^2+7x-4

because:

1) 15x^2+12x-5x-4
2) 15x^2+7x-4
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Somebody help me with this
den301095 [7]

4x^2-5x=0

x (4x+5)=0

either. or

x=0. 4x= -5

x = -5/4

5 0
3 years ago
Read 2 more answers
16+5x=8x-5 What would the variable be?
11111nata11111 [884]
16+5x =8x-5

Reorder the terms
16+5x = -5+8x
Solving for variable for x

Move all terms containing x to the left, all other terms to the right.
Add -8x to each side of the equation.
16+ -3x = -5 + 8x + -8x

Combine like terms: 5x + -8x=-3x
16+-3x = -5 + 8x + -8x

Combine like terms: 8x + -8x = 0
16+-3x = -5 + 0
16+ -3x = -5

Add -16 to each side of the equation
16+-16 + -3x = -5 + 16

Combine like terms: 16+ -16 = 0
0 + -3x =-5 + -16
-3x = -5 + -16

combine like terms: -5 + -16 = -21
-3x = -21
Divide each side by -3
x=7


7 0
3 years ago
PLEASE HELP, 50 POINTS! This is a triangle investigation.
mylen [45]
A) they fornite a right angle and 2 acute angles(not 100% sure of what the Questions is asking)


B) they appear to form a triangle

C) the angles add up to 180 as they always do in all triangles





















B)
5 0
3 years ago
Read 2 more answers
What is the difference in length between a 1 1/4 inch button and a 3/8 inch button?
charle [14.2K]
1 1/4= 1*4+1 /4. Or 5/4

In order to subtract you must have same denominator. 5/4 -3/8

Multiply 5/4 times 2/2. =. 10/8. -3/8

The difference is 7/8
8 0
3 years ago
How many full hours will it take for the number of amoeba to reach 1 million
dimulka [17.4K]

Answer:

250,000 hours

Step-by-step explanation:

if 2 amoeba takes half an hour then 4 amoeba will take 1 full hour then use 4 to divide 1 million.

If u were to use 2 amoeba to half an hour you will have to divide 1 million into two which is 500,00

5 0
2 years ago
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