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2 years ago

PLEASE HELP!!!!! GEOMETRY

Mathematics

2 answers:

Mrrafil [7]2 years ago

7 0

Perpendicular means the product of the slopes is -1.

Since the green line has slope of -1/4, then the answer will be 4

serious [3.7K]2 years ago

4 0

Answer is A

this is because perpendicular lines are reciprocal of one another

reciprocal and opposite signs.

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Find an expression which represents the sum of (7x - 8y) and (-6x - 6y) in simplest terms.

grigory [225]

Answer:

$\displaystyle (7x - 8y) + (-6x - 6y) = x - 14y$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle (7x - 8y) + (-6x - 6y)$

Step 2: Simplify

Combine like terms (x): $\displaystyle (7x - 8y) + (-6x - 6y) = x - 8y - 6y$
Combine like terms (y): $\displaystyle (7x - 8y) + (-6x - 6y) = x - 14y$

3 0

2 years ago

Solve by substitution X^2= 2y + 10 3x-y = 9

Viefleur [7K]

Answer:

$x=-4\\ x=-2\\ y=-21\\ y=-15$

Step-by-step explanation:

$x^{2} =2y+10$

$y=-9+3x$

$x^{2} =2(-9+3x)+10$

$x^{2} =-18+6x+10$

$x^{2} =6x-8$

$x^{2} -6x+8$

$x=-4, -2$

$y=-9+3(-4)$

$y=-9-12$

$y=-21$

$y=-9+3(-2)$

$y=-9-6$

$y=-15$

8 0

3 years ago

Read 2 more answers

Trina planted plants in her garden last week. She planted twice as many cucumbers as zucchini and eight more tomatoes than cucum

maxonik [38]

Answer:

7 Zuchini, 14 Cucumbers and 22 Tomatoes plants.

Step-by-step explanation:

Let the number of tomatoes=t
Let the number of cucumber planted=c
Let the number of zucchini planted=z
Total Number of Plants=43

She planted twice as many cucumbers as zucchini, this is written as:

c=2z

She also planted eight more tomatoes than cucumbers, this is written as:

t=c+8=2z+8

In total, she planted 43 plants

Therefore:

z+(2z)+(2z+8)=43

5z+8=43

5z=43-8

5z=35

Divide both sides by 5

z=7

Number of Cucumbers, c=2z=2 X 7 =14

Number of Tomatoes, t=c+8=14+8=22

Therefore, she planted 7 Zuchini, 14 Cucumbers and 22 Tomatoes plants.

3 0

3 years ago

What is the ricipricol of7/9

GuDViN [60]

The reciprocal would be 9/7 because a reciprocal is when you flip a fraction and put the denominator as the numerator and vice versa.

5 0

3 years ago

Read 2 more answers

Sajay invested 5100 in a local bank at a rate of 3% how much money will he have in his account after 3.5 years if no additional

KATRIN_1 [288]

Solution:

Using PRT/100 to find the interest:

5100 x 3 x 3.5/100 = Interest
=> 51 x 3 x 3.5 = Interest
=> 535.5 = Interest

Using Principle + Interest to find the amount:

5100 + 535.5 = Total amount
=> $5635.5 = Total amount

8 0

2 years ago