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miss Akunina [59]
3 years ago
6

Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ?

Mathematics
1 answer:
xeze [42]3 years ago
6 0
Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ? Where is the picture
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What is the equation of the line passing through the point (-2,-1) and perpendicular to the line y = 1/2x+5?
uranmaximum [27]

Step-by-step explanation:

the slope of a line is always the factor of x.

here : 1/2

it is the ratio y/x indicating how many units y changes, when x changes a certain angina amount of units when going from one point to another.

a perpendicular slope puts x and y upside-down and flips the sign.

here : -2/1 = -2

so, the equation looks like

y = -2x + b

b is the y-intercept, and we get this by putting the x and y coordinates of the given point into this equation and solve for b :

-1 = -2×-2 + b

-1 = 4 + b

b = -5

the full equation is therefore

y = -2x - 5

3 0
3 years ago
HELP ASAP WILL MARK BRAINLIEST
Aleks04 [339]

Answer: 11

Step-by-step explanation:

6 0
3 years ago
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A. acute; 45<br> B. Acute; 55 <br> C. Obtuse; 135<br> D. Obtuse; 45
xxMikexx [17]
It’s A, if you add 70 and 65 you get 135 and 180-135=45 :)
6 0
3 years ago
Marcus states that the polynomial expression 3x3 – 4x2y + y2 + 2 is in standard form. Ariel states that it should be y2 – 4x2y +
lora16 [44]

Answer:

Here Ariel is wrong because 3x^3 is higher power than y^2

3x^3 goes first

then the mixed term -4x^2y

then the y^2

then the 2

So, Marcus is right

Standard form means that you write the terms by descending degree. here's main rules how to write polynomial expression in the standard form:

1. write the term with the highest exponent first (terms of third degree in our case 3x^3 );

2. write the terms with lower exponents in descending order (term -4x^2y followed by y^2 );

3. remember that a variable with no exponent has an understood exponent of 1 (here are no such terms);

4. a constant term (a number with no variable) always goes last (term 2).

4 0
3 years ago
Read 2 more answers
What’s the value of X plz hurry it’s due soon
Serhud [2]

Answer:

x = 18

Step-by-step explanation:

The angle vertically opposite (5x + 2) is also (5x + 2), then

(5x + 2) and (5x - 2) are same- side interior angles and sum to 180° , that is

5x + 2 + 5x - 2 = 180

10x = 180 ( divide both sides by 10 )

x = 18

6 0
3 years ago
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