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Stels [109]
3 years ago
9

Angle A measures (2x + 23)°. Angle B is supplementary to angle A and measures (4x + 46)°. Write and solve an equation to find th

e value of x.
Mathematics
2 answers:
sladkih [1.3K]3 years ago
8 0
2x+23+4x+46=180
6x+69=180
6x=180-69
6x=111
x=111/6
x=18.5
KatRina [158]3 years ago
4 0
Supplementary angles add up to 180 degrees.

2x + 23 + 4x + 46 = 180

Combine like terms:

2x + 4x = 6x
23 + 46 = 69

6x + 69 = 180

Subtract 69 to both sides:

6x = 111

Divide 6 to both sides:

x = 18.5
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Ms. Daffy tells you that the longest side of her right-triangular garden is 26m and one of the sides is 14m. A. She asks you to
ira [324]

Answer:

22m

Step-by-step explanation:

The computation is shown below:

Since it is a right-triangular garden so we use the pythagoreus theorem

As we know that

The C^2 refers to the longest side of the right-triangular garden

So,

a^2 + b^2 = c^2

a^2 + 14^2 = 26^2

a^2 + 196 = 676

a^2 = 480

So a = 22m

Hence, the other side of the garden is 22m

6 0
3 years ago
Can someone help me out with these problems and show work please !!
AVprozaik [17]

Answer:

13. 10a^4b²

14. -5y³ + 35y² - 10y

Step-by-step explanation:

Question 13:

(5a³b) (2ab) =

=10a^4b²

Question 14:

5y (-y² + 7y - 2) =

= -5y³ + 35y² - 10y

Hope this helps!

5 0
1 year ago
Which number lint represents the solution set for the inequity -1/2x>4
g100num [7]

Answer:

B. x < -8

Step-by-step explanation:

Well first we need to get x by itself.

To do that we do 4 / -1/2 = -8

And since a negative was divided the > changes to a <.

So x<-8.

If x is less than -8 the line starts at -8 and goes to the left.

<em>Thus,</em>

<em>the answer is choice b.</em>

<em />

<em>Hope this helps :)</em>

5 0
2 years ago
(posting this for my friend) SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER
Pani-rosa [81]

Answer:

45

Step-by-step explanation:

the 90 degree angle is subtracted by 45 and the answer is.

4 0
2 years ago
The cost of a pen at the office supply store is $2.65. The school store sells the pen for $3.45. How much does the school store
Julli [10]
The pen is what ever when you subtract them
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3 years ago
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