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2 years ago

I need help pleaseee

Mathematics

2 answers:

tatyana61 [14]2 years ago

6 0

abcdefghijklmnopqrstuvwxyz

Elanso [62]2 years ago

4 0

Go check in teacher Desmond com

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Plss help me plsss!!

grin007 [14]

Answer:

20 units

Step-by-step explanation:

The first part is already solved.

<u>We got the scale factor </u>

k = 4

<u>Use this to find the missing side:</u>

MN = k*YZ
MN = 4*5 = 20

3 0

3 years ago

Read 2 more answers

Solve this equation using an algebraic method: (x + 4)( x - 4) = 9

Svetradugi [14.3K]

This is the answer that i was going to upload :
the answer is +5(or)-5 because of root

3 0

3 years ago

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Neil has 3 partially full cans of white paint . They contain 1/3 gallon , 1/5 gallon and 1/2 gallon of paint. About how many pai

stepan [7]

Answer:

About 1 gallon. (32/30)

Step-by-step explanation:

First get a LCM (least common multiple) for 3, 5, and 2.

Now we have 30. Make 30 the denominator for all.

10/30

15/30

7/30

Then add them all up to get 32/30.

About 1 gallon.

4 0

3 years ago

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What does the missing number represent?

kenny6666 [7]

Answer: (C) the number of groups

Step-by-step explanation: It cannot be the total because the total is 18, the size of the groups does not make sense because it seems that you are trying to find a total, and the difference makes no sense because this does not seem like a subtraction problem. (C) the number of groups makes sense because their is a total number of groups.

Hope this helps! :)

6 0

3 years ago

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The first three steps in determining the solution set of the system of equations algebraically are shown in the table. y = −x2 +

lianna [129]

You have a system of equations $\left \{ {{y = -x^2+2x-9} \atop {y =-6x+6}} \right.$ .

1. Substitude right side of second equation into the left side of the first equation: $-6x+6=-x^2+2x-9$ .

2. Solve this equation:
$x^2-2x+9-6x+6=0, \\ x^2-8x+15=0, \\ D=(-8)^2-4\cdot 1\cdot 15=64-60=4, \\ \sqrt{D}=2, \\ x_{1,2}=\dfrac{8\pm 2}{2 } =3,5$ .

3. Find y:
for $x_1=3, y_1=-6\cdot 3+6=-18+6=-12$ ,
for $x_2=5, y_2=-6\cdot 5+6=-30+6=-24$ .

4. The solutions of the system are: (3,-12) and (5,-24).
Answer: Correct choice is A.

7 0

3 years ago

Read 2 more answers