All categories

3 years ago

I'm so stuck on this

Mathematics

2 answers:

Marina CMI [18]3 years ago

7 0

Answer:150

Step-by-step explanation:

Let's name the angle beside A: angle1

the angle beside B: angle2

angle1= angle2 because the lines are parallel.

Therefore 180-angle1=180-angle2

which is the same as A=B

So 8x-10=3x+90

5x=100

x=20

B= 3x+90

=60+90

=150

raketka [301]3 years ago

6 0

Answer:

150°

Step-by-step explanation:

<h2><u>Find the angle </u></h2>

since the lines are parallel

and also because a Z angle is formed. this means :

that angle A = angle B

hence we can solve by putting:

8x - 10 = 3x + 90

make x the subject of formula

8x - 3x = 90 + 10

5x = 100

x = 100/5

<h3><u>therefore place the value of x into the equation to find B </u></h3>

B = 3x + 90

= 3* 20 + 90

= 60 + 90

= 150°

<h3><u>angle for B is 150°</u></h3>

You might be interested in

Factor completely 3x3 + 12x2 + 18x.

Sedbober [7]

Step-by-step explanation:

solved in the picture....

6 0

3 years ago

Read 2 more answers

A regression analysis between sales (y in $1000) and advertising (x in dollars) resulted in the following equation y = 50,000 +

Vikentia [17]

Answer:

D. increase of $1 in advertising is associated with an increase of $6,000 in sales.

Step-by-step explanation:

Every dollar in advertisting is multiply by 6 in the equation, but every unit in y represent $1000. That means that $1 1n advertisting is multiply by 6 and then by $1000, that is $1 in advertisting = $6000 in sales.

4 0

3 years ago

What is the sum of all values of m that satisfy 2m (squared) -16m+8=0?

vodomira [7]

<h2>Steps:</h2>

So for this, we will be completing the square to solve for m. Firstly, subtract 8 on both sides:

$2m^2-16m=-8$

Next, divide both sides by 2:

$m^2-8m=-4$

Next, we want to make the left side of the equation a perfect square. To find the constant of this perfect square, divide the m coefficient by 2, then square the quotient. In this case:

-8 ÷ 2 = -4, (-4)² = 16

Add 16 to both sides of the equation:

$m^2-8m+16=12$

Next, factor the left side:

$(m-4)^2=12$

Next, square root both sides of the equation:

$m-4=\pm \sqrt{12}$

Next, add 4 to both sides of the equation:

$m=4\pm \sqrt{12}$

Now, while this is your answer, you can further simplify the radical using the product rule of radicals:

Product rule of radicals: √ab = √a × √b

√12 = √4 × √3 = 2√3.

$m=4\pm 2\sqrt{3}$

<h2>Answer:</h2>

In exact form, your answer is $m=4\pm \sqrt{12}\ \textsf{OR}\ m=4\pm 2\sqrt{3}$

In approximate form, your answers are (rounded to the hundreths) $m=7.46, 0.54$

6 0

3 years ago

Hook a brother up please

zzz [600]

Answer: v = 13920 cm cubed

8 0

3 years ago

What does x=??? hurry!!

elena-s [515]

Answer:

17 degrees.

There is a right angle and we know that is 90 degrees. 73 degrees has a vertical angle which is 73 degrees. The opposite vertical angle adds up to another angle which gives you 90. Subtract 73 from 90 and you get 17.

4 0

3 years ago

I'm so stuck on this ​

I'm so stuck on this