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3 years ago

I need help please.

Mathematics

2 answers:

Leviafan [203]3 years ago

8 0

7y^2 + 2y + 3 - 6y^2 - 3y - 4
(7-6)y^2 + (2-3)y + (3-4)
y^2 - y -1
C.

avanturin [10]3 years ago

4 0

7y2+2y2+3-6y2-3y2-4
7y2+6y2+2y-3y+3-4
y2-y-1

You might be interested in

16x+14y=8 -63x-14y=133

artcher [175]

Answer:

(-3, 4)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define Systems

16x + 14y = 8

-63x - 14y = 133

Step 2: Solve for x

Elimination

Combine 2 equations: -47x = 141
Divide -47 on both sides: x = -3

Step 3: Solve for y

Define original equation: 16x + 14y = 8
Substitute in x: 16(-3) + 14y = 8
Evaluate multiplication: -48 + 14y = 8
Add 48 on both sides: 14y = 56
Divide 14 on both sides: y = 4

Step 4: Graph Systems

Check the solution set.

4 0

2 years ago

Michael is using a drawing program to complete a construction. Which construction is he completing? A circle is drawn with two p

Cloud [144]

Answer: A square inscribed in a circle.


Justification:

Note that by making two perpendicular lines that intersect each other in the center of the circle, he obtains 4 equidistant points on the circumference.

So, joining each pair of neighbouring points, the image will reveal 4 congruent sides joining at right angles (90°). This is the image of a square with the four vertices on the circumference.

5 0

3 years ago

Solve for x : 1/4 (2x-14)=4 a. 15 b. 15/2 c. 9 d. 11

aniked [119]

1/4(2x-14)=4
2x/4-14/4
X/2-7/2=4
x-7/2=4
8=x-7
8+7=x
X=15

6 0

3 years ago

In 2000, the cost of tuition at a UC school was $3200. The tuition has increased by about 8% every year. How much can you expect

miss Akunina [59]

Answer:

$51, 200

Step-by-step explanation:

First is to find the increase of tuition

$3,200 × .8 = $2560

then subtract the year.

2020-2000=20

lastly multiply the year and the increase of tuition to know the final answer

$2560 × 20 = $51,200

3 0

3 years ago

What is the measure of angle ABC

zvonat [6]

ANSWER = c. 63°

EXP:

>ABC = 1/2(x + y)

3 0

2 years ago