3 years ago

Work out the size of angle x.42°Х123°

Mathematics

1 answer:

Umnica [9.8K]3 years ago

7 0

Answer:

42+123+x=180

x=180-165

x=15 degrees

Step-by-step explanation:

You might be interested in

2x² + 4x + 4 + x² + 1 = 180

Tasya [4]

Step-by-step explanation:

$2 {x}^{2} + 4x + 4 + {x}^{2} + 1 = 180$

$3 {x}^{2} + 4x + 5 = 180$

${3x}^{2} + 25x - 21x - 175 = 0$

$x \times (3x + 25) - 7(3x + 25) = 0$

$(3x + 25) \times (x - 7) = 0$

$3x + 25 = 0 = x - 7 = 0$

$x = - \frac{25}{3} = x = 7$

$= x_{1} = - \frac{25}{3} . \: \: x_{2} = 7$

5 0

3 years ago

Find the x-intercept of the line:

frozen [14]

2x+4y=8
-2x -2x
4y=-2x+8
/4 /4 /4
y=-1/2x+2

6 0

3 years ago

Read 2 more answers

What is -7/9 in a decimal

kicyunya [14]

Answer:

-0.78

Step-by-step explanation:

you would round the number up after you divide.

6 0

3 years ago

Read 2 more answers

What is the function rule for the following situation? Rex paid $20 for a membership to the pool and pays $300 each time he goes

asambeis [7]

f(x)=20+300x

Also, Rex should find a different pool because that fee is ridiculous.

8 0

2 years ago

Can someone make me a word problem for 9 x (13 + 6 - 7)? I'm bad at making word problems.

Rina8888 [55]

Celia is making cookies for her neighborhood. She plans to make 9 batches of 13 cookies, but she makes more cookie dough than she planned to and adds 6 cookies to each batch. After they bake, she takes them out of the oven and takes 7 cookies from each tray to keep for herself. How many cookies will be left to distribute among her neighbors?

Hope this helps!

3 0

3 years ago

Read 2 more answers

Work out the size of angle x.42°Х123°​

Work out the size of angle x.42°Х123°