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raketka [301]
3 years ago
15

Find the value of x plz plz plz

Mathematics
2 answers:
eduard3 years ago
6 0

Answer:

28

Step-by-step explanation:

A triangle always has 180° so that means 40° (2x+9)° and another angle add up to 180°.

We can find out two angles in order to find out the third, one of them is 40°  the other is 180°-105° because there are 180° on a line.

you get 75.

75°+40°=115°

180°-115°=65°

2x+9=65°

Make x the subject of the formula:

2x=56

(take away 9)

x=28

(divide both sides by 2)

Wewaii [24]3 years ago
4 0

Answer:

X=28

Step-by-step explanation:

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Find the slope intercept form of slope-2 which passes through (-5,1)
dusya [7]

Answer:

y=2x+11

Step-by-step explanation:

So we know that the slope is 2 and the lines passes through the point (-5,1).

We can use the point-slope form. The point-slope form is:

y-y_1=m(x-x_1)

Where m is the slope and (x₁, y₁) is a point.

So, let's substitute 2 for m and (-5,1) for (x₁, y₁), respectively. Therefore:

y-(1)=2(x-(-5))

Simplify:

y-1=2(x+5)

Distribute the 2:

y-1=2x+10

Add 1 to both sides:

y=2x+11

So, the equation of our line is:

y=2x+11

6 0
2 years ago
A hat contains four balls. The balls are numbered 2, 4, 4, and 7. One ball is randomly selected and
vfiekz [6]

Answer:

  • If the sum is 6, a small cone will be ordered.
  • If the sum is 8 or 9, a medium cone will be ordered.
  • If the sum is 11, a large cone will be ordered.

Step-by-step explanation:

The table below shows the possible outcomes from drawing two balls. We see the relative frequencies to be ...

  6: 4

  8: 2

  9: 2

  11: 4

To make a fair decision, we want the relative frequencies of the decision possibilities to be the same. If we combine sums 8 and 9 to one category (medium cone, for example), then 6, (8 or 9), and 11 will all have the same relative frequency: 4.

The appropriate "fair decision" choice is ...

  6: small cone

  8 or 9: medium cone

  11: large cone

6 0
3 years ago
Solve the inequality
Lina20 [59]
Your answer is C.)x<2
6 0
3 years ago
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I need to find the measure of angle
lesantik [10]
The answer is 124 deg. because all the equation is 3x+40=7x-72 and when you solve for x, you get 28. Then all you have to do is plug 28 into the equation 3x+40 and you get 124..:)):
3 0
3 years ago
Elizabeth is going to roll a fair 6-sided die 600 times. Complete the following statement with the best prediction. Elizabeth wi
SCORPION-xisa [38]

Answer:

Close to 300 but not exaclty 300.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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