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Lena [83]
3 years ago
10

Simplify the expression using the distributive property 2x (x- 9)​

Mathematics
2 answers:
Scrat [10]3 years ago
4 0

Answer:

2x^2-18x

Step-by-step explanation:

DanielleElmas [232]3 years ago
3 0
Answer:

4x^2 - 18x

Explanation:

Multiply 2x by 1x which should give you 2x^2 (squared because the x’s together would be squared), then multiply the 2x by 9 and you should be left with 18x which results in 4x^2 - 18x
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Use a=6 and b=24 to work out the value of these expressions
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A) 30
B) 144
C) 4
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Find the rate of change for the situation. A Chef cooks 9 lbs of chicken for 36 people and 17 lbs of chicken 68 people
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The flag of a country contains an isosceles triangle.​ (Recall that an isosceles triangle contains two angles with the same​ mea
weeeeeb [17]

31 degrees, 31 degrees, 118 degrees

Step-by-step explanation:

Step 1 :

Let x be the measure of 2 angles of the given isosceles triangle with same measure

Let y be the measure of  3rd angle

So we have x + x + y = 180

Step 2 :

Given that the measure of  3rd angle of  triangle is 25​° more than three times the measure of either of the other two​ angles

So we have , y = 3 x + 25

Step 3:

Substituting for y in the first equation we have,

x + x + 3 x + 25 = 180

=> 5 x + 25 = 180

=> 5 x = 180-25 = 155

=> x = 155/5 = 31

Hence the 2 angles of the triangle are 31 degrees.

Step 4:

we have y = 3 x + 25

=> y = 3 * 31 + 25 = 118

Hence the 3rd angle of given triangle is 118 degrees

8 0
2 years ago
The cost of renting a jumping castle includes a fixed charge of $325 for setup and delivery, and a variable charge of $175 for e
allochka39001 [22]

Answer:

the range is 5-8 hours

Step-by-step explanation:

325+175t=1200

175t=875

875/175

t=5

325+175t=1725

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8 0
3 years ago
The table below represents the displacement of a turtle from its nest as a function of time: Time (hours) x Displacement from ne
andriy [413]
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Part B:Answer=22. Remember, if you take any two distinct points on a line, the slope of the line will be equal to the average rate of change. In short,  we're just looking for the slope between the ordered pairs (1,27) and (4,93). The formula for slope is:

slope= \frac{y_{2}- y_{1} }{ x_{2} - x_{1} } = \frac{93-27}{4-1}= \frac{66}{3}=22

The average rate of change between x=1 and x=4 is 22. The average rate of changed describes the rate at which miles is changing with respect the the change in hour.

Part C: Answer=10hours. Since by now we know both the slope and the y-intercept, lets write the equation in slope intercept form and then solve for 225 miles.

y=mx+b
y=22x+5
225=22x+5
subtract 5 from both sides
220=22x
divide both sides by 22
10=x
It would take 10 hours for the turtle to travel 225miles from it's nest.
4 0
3 years ago
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