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yarga [219]
3 years ago
15

Which of the following is an equivalent expression to: -3x + 6 *

Mathematics
1 answer:
victus00 [196]3 years ago
6 0

Answer:

5x + 2 - 2(4x - 2)

Step-by-step explanation:

-2 x 4x= -8x

5x-8x=-3x

-2 x -2= 4

4+2=6

-3x+6

hope this helped ^ ^

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Evaluate the expression 29-3(9-4)
pav-90 [236]

Answer:

14

Step-by-step explanation:

PEMDAS - First Do Parentheses

29-3(5)

Then Do Multiplication

29-15

Then Finish with Subtraction

<u>14</u>

3 0
3 years ago
Read 2 more answers
Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?
Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

The speed is equal to divide the distance by the time

In this problem, the slope or unit rate of the linear equation is the same that the speed

<em>Robin's Flight</em>

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

take two points from the table

(2,30) and (3,45)

substitute in the formula

m=\frac{45-30}{3-2}

m=\frac{15}{1}

m=15\frac{m}{sec}

<em>Cardinal's Flight</em>

y=10x

m=10\frac{m}{sec}

<em>Blue Jay's Flight</em>

take two points from the graph

(0,0) and (2,20)

substitute in the formula

m=\frac{20-0}{2-0}

m=\frac{20}{2}

m=10\frac{m}{sec}

Compare

The robin flies fastest because its rate is 15 m/s

4 0
4 years ago
What is 20% of 160?....................
serious [3.7K]

Answer:

20% of 160 is 32

Step-by-step explanation:

4 0
3 years ago
Point o is the center if the circle. what is the value of x? mn and mp are tangent to
mrs_skeptik [129]

Answer:

x=66

Step-by-step explanation:

Since  MN and MP are tangent to circle O, they create 90° angles at the points of intersection.

We also know that this is a quadralateral, so the interior angles add up to 360.

We can make an equation with this information.

114+90+90+x=360

294+x=360

x=66

7 0
3 years ago
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Find the sum. Express your answer in simplest form. 9a^2-5/b^2+2 + -2a^2+4/b^2+2
KonstantinChe [14]

Answer:

Step-by-step explanation:

\frac{9a^{2}-5}{b^{2}+2}+\frac{-2a^{2}+4}{b^{2}+2}=\frac{9a^{2}-5-2a^{2}+4}{b^{2}+2}\\\\=\frac{9a^{2}-2a^{2}-5+2}{b^{2}+2}\\\\=\frac{7a^{2}-3}{b^{2}+2}

5 0
3 years ago
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