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Elena L [17]
3 years ago
7

Please need help ASAP I will give brainliest

Mathematics
1 answer:
NARA [144]3 years ago
5 0

Answer:

for number 4 i think it is option 3

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PLEASE HELP ME ! IMAGE IS BELOW IF YOU GET IT RIGHT I'LL MARK BRAINLIEST
jarptica [38.1K]

Answer:

x = 17

y = 8

QPR = 35º

QRP = 60º

Step-by-step explanation:

2x + 1 = x + 18

Subtract x from both sides

x + 1 = 18

Subtract 1 from both sides

x = 17

QPR = 2x + 1

QPR = 2(17) + 1

QPR = 35º

-------------------------------

8y - 4 = 4y + 28

Subtract 4y from both sides

4y - 4 = 28

Add 4 to both sides

4y = 32

Divide both sides by 4

y = 8

QPR = 8y - 4

QRP = 8(8) - 4

QRP = 60º

7 0
3 years ago
Lynn is 4 years younger than her sister Tobbe. If the sum of their ages is 18, how old are Lynn and Tobbe?
expeople1 [14]
Lynn is 7, Tobbe is 11.. Go get a Slurpee now
5 0
3 years ago
Read 2 more answers
Two vectors beginning at the same vertex of a triangle are 〈2,3〉 and 〈-3,2〉. Choose the correct classification of the triangle.
Elena-2011 [213]

It will be right angle triangle.  The two vectors beginning at the same vertex of a triangle are <2,3> and <-3,2> is classified as right-angled triangle. It is classified as a right-angled triangle because the dot product of the vectors are 0.

5 0
3 years ago
Multiple choice: 
Paha777 [63]
In the given you wrote -2, whereas it should be -2i

z = a + bi and in trigo form | z |.(cos Ф + i.sin Ф).
z = 0 -2i → | z |.(cos Ф + i.sin Ф)
Now let's calculate z:
 
z² = a²+b² → z² = 0² (-2.i)² → z = -2(i)² →z= -2(-1) → z = |2|
tan Ф = b/a = -2/0 → tan Ф → - ∞ ↔ Ф = -90° or Ф = 270°
 then the - 2 I ↔ |2|(cos 270° + i.sin 270°)

7 0
3 years ago
If 9x²+Px+25 is a perfect square, then find the value of P​
kvv77 [185]
30 is the value of P
Steps:
A perfect square follows the pattern a^2+2ab+b^2\\\boxed{a=3,b=5}\\\boxed{2ab=30}
8 0
3 years ago
Read 2 more answers
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