(3x + 4)
50°
Solve for x:

Step-by-step explanation:

Since the angle we're solving for is a 90-degree angle then we can just add the two given numbers (We know it's a 90-degree angle by the little box).

(3x + 4) + 50 = 90

(3x + 4) + 50 - 50 = 90 -50

3x + 4 = 40

3x + 4 - 4 = 40 -4

3x = 36

3x/3 = 36/3

x = 12

Now that we found x we can plug it into (3x + 4) to find the angle.

3(12) + 4

36 + 4

40

The angle is 40-degrees

You could've also done it an easier way:

Since we know that both givens will be equal to 90 and one given is already a whole number (50)

Then x has to be equal to 12 since that's the only number that can be plugged into 3x + 4 to get 40.

darn right!

step-by-step explanation:

steve kerr's sons name is let that skin in.

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.