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3 years ago

Simplify 3x + 5x + 14x

Mathematics

2 answers:

navik [9.2K]3 years ago

3 0

Simply collect all the like terms together
So..3+5+14 is 22x

Dafna11 [192]3 years ago

3 0

The answer I think is 22x I could be wrong tho

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What is the value of c in the equation y = 4x^2 -10x + c if the y-coordinate of the vertex is -7

love history [14]

Answer: $c=-\frac{3}{4}$

Step-by-step explanation:

Find the x-coordinate of the vertex with this formula:

$x=\frac{-b}{2a}$

In this case:

$a=4\\b=-10$

Substituting values, we get:

$x=\frac{-(-10)}{2(4)}=\frac{5}{4}$

Now we can substitute the coordinates of the vertex into the equation $y = 4x^2 -10x + c$ and then solve for "c".

Then:

$-7 = 4(\frac{5}{4})^2 -10(\frac{5}{4}) + c\\\\-7+\frac{25}{4}=c\\\\c=-\frac{3}{4}$

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2 years ago

Tyler does squats and pushups. He wants to increase the number of each type of exercise by 20% by the end of the month. He curre

Semenov [28]

Answer:

Tyler currently does 40 squats

Step-by-step explanation:

Tyler does squats and pushups.

Currently:

Number of pushups = 25

Number of squats = x

Total number = 25 + x

After increase:

Number of pishups $=25\cdot (1+0.2)=1.2\cdot 25=30$

Number of squats $=x\cdot (1+0.2)=1.2x$

Total number $=30+1.2x$

If Tyler meets his goal, he will do a total of 13 more squats and pushups than he does now, thus

$(30+1.2x)-(25+x)=13\\ \\30+1.2x-25-x=13\\ \\1.2x-x=13-30+25\\ \\0.2x=8\\ \\2x=80\\ \\x=40$

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2 years ago

if two angles are supplementary and one of the angles measures 43 degrees, what is the measure of the other angle

sweet-ann [11.9K]

Answer:

137 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees

180-43=137

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2 years ago

Read 2 more answers

Cách tính tổng 12+25+45+65+34

Andre45 [30]

12+25+45+65+34

= 181

Must click thanks and mark brainliest

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3 years ago

What is the value of the following expression when d=2? 3d + (2.d)-4

Lostsunrise [7]

Answer:

Step-by-step explanation:

I used a calculator and the answer is 6

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2 years ago