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3 years ago

Help me with this question

Mathematics

2 answers:

Advocard [28]3 years ago

8 0

Answer:

a) 165

b) 90

c) 45

d) 34

Aleksandr [31]3 years ago

7 0

Answer:

65, 90, 30, 24(in order abcd)

Step-by-step explanation:

The sum of all angles in a triangle is 180 degrees, so knowing this, you should be able to get all of them.

1) x+65+50 = 180, so x= 65

2)x+34+56 =180, so x= 90

3)90+3x=180, so x=30

4)90+66+x=180, x=24

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Select all the expressions that are equivalent to 4(b)

dsp73

Answer:

#1 is a and c

#2 its c and d

#3 is a

#4 is b and d

#5 is a

#6 is b

#7 is b

Step-by-step explanation:

hope this helps :)

6 0

3 years ago

The sum of two numbers is 67 and the difference is 13 . What are the numbers? PLEASE HELP IM NEW TO THIS AND WANT MY GRADES TO C

Nikitich [7]

Answer:

The two numbers are 40, and 27.

Explanation:

Since there are only two numbers, with two different aspects, you can just make

a system, and solve.

A sum of two numbers adding up to 67 can be modeled by: x + y = 67.

A difference of those same two numbers being 13 can be modeled by: x – y = 13.

You can add the two equations together to eliminate the y value because the -y and y will cancel out:

x + y = 67.

+ x – y = 13.

And you get: 2x = 80.

Now to find x, just divide by 2 on both sides to cancel out the coefficient of 2 in 2x:

2x = 80

÷2 ÷2

x = 40.

So the first number is 40.

Since we know the first number, we can immediately find the other number by substituting it into the first equation.

x = 40 → x + y = 67

(40) + y = 67

-40. -40

Subtract from both sides to cancel the constant terms.

Then you will get that y or the second number is y = 27.

This is true because 40 + 27 = 67, and 40 - 27 = 13.

6 0

3 years ago

Which vertex would form a right triangle on the coordinate plane, together with the endpoints of the segment shown? A) (6, 7) B)

Vlad [161]

Answer:

(7,7)

Step-by-step explanation:

The answer is B I took the test and got it right!!!

4 0

3 years ago

Read 2 more answers

Solve for P. <br><br> S=A+1/2PL

Dovator [93]

9514 1404 393

Answer:

(b) P = 2(S -A) ÷ L

Step-by-step explanation:

Undo what is done to P.

$S=A+\dfrac{1}{2}PL\qquad\text{given}\\\\S-A = \dfrac{1}{2}PL\qquad\text{subtract $A$}\\\\\dfrac{2}{L}(S-A)=P \qquad\text{multiply by $\dfrac{2}{L}$}\\\\\boxed{P=\dfrac{2(S-A)}{L}}$

5 0

3 years ago

17 - 4x = 33<br> What does X=?

algol13

Answer:

x = -4

Step-by-step explanation:

17 - 4x = 33

Subtract 17 from each side

17-17 - 4x = 33-17

-4x = 16

Divide each side by -4

-4x/-4 =16/-4

x = -4

8 0

3 years ago