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juin [17]
3 years ago
12

For a scale of 1 cm:12 km, find the actual length represented by the length 1.7 cm in a drawing

Mathematics
1 answer:
tangare [24]3 years ago
5 0
2.82 is the answrer...
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PLS HELP I WILL GIVE YOU A BRAINLIST AND A THANK YOU!!!!
kramer

Answer:

75

Step-by-step explanation:

We have a 90 degree angle and a 15 degree angle that add up to 105. The angle that is missing can be found by doing 180 - 105 = 75 (since it's a straight line). X is vertical from the 75 degree angle, so 75 is your answer.

6 0
3 years ago
Read 2 more answers
Sally identified the terms of the expression 9a + 4b - 18 as 9, 4, and 18. Explain her error.
nordsb [41]

A term is a single mathematical expression. It may be a single number (positive or negative), a single variable (a letter), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them. The number in front of a term is called a coefficient.

So the terms are 9a, 4b, and 18.

hope it helps!

3 0
3 years ago
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The truth table represents statements p, q, and r. p q r A T T T B T T F C T F T D T F F E F T T F F T F G F F T H F F F Which s
Lina20 [59]

We have been given the truth table for three variables p, q, and r. as shown below


p q r

A T T T

B T T F

C T F T

D T F F

E F T T

F F T F

G F F T

H F F F


Now we need to find Which statements are true for rows A and E for the following statements:

p ↔ q p ↔ r q ↔ p q ↔ r r ↔ p r ↔ q


To find that we need to use table of P <-> Q as shown in picture.

We know that if both statements are true for P and Q then only P <-> Q will be true. So using that trick we see that only q<->r and r<->q are the final answer as shown in the attached picture.

4 0
3 years ago
Read 2 more answers
How do you solve 3n-4=14! I need it explained
Inessa [10]
Here you go!
3n-4=14
+4 +4
3n=18
(Divide both sides by 3)
n=6
7 0
3 years ago
Read 2 more answers
The sum of Mrs. son's age and her age was 70 two years ago Q's age was 5 less than twice her son's age . Write a system and solv
Anestetic [448]

Step 1: Set up a table.

Algebra Age Problems

Step 2: Fill in the table with information given in the question.

John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years, John will be three times as old as Alice. How old is Peter now?

Let x be Peter’s age now. Add 5 to get the ages in 5 yrs.

Algebra Age Problems

Write the new relationship in an equation using the ages in 5 yrs.

In 5 years, John will be three times as old as Alice.

2x + 5 = 3(x – 5 + 5)

2x + 5 = 3x

Isolate variable x

x = 5

Answer: Peter is now 5 years old.

7 0
3 years ago
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