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Ghella [55]
3 years ago
12

For each ordered pair, determine whether it is a solution to y=-9.

Mathematics
1 answer:
lesantik [10]3 years ago
8 0

Answer:

(1, -9)  yes

(7,3)  no

(-9,4)  no

(0, -9) yes

Step-by-step explanation:

The y value must be -9

The x value can be any value to satisfy   the equation y = -9

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HELP ME PLEASE FOR 16 EASY POINTS<br><br> solve for x<br> 3x+6&lt;21
love history [14]

Answer:

x=5

Step-by-step explanation:

This one does not follow the correct rules in math but this is very helpful for "limited time" exams.

3

x

+

6

=

21

Transfer +6 to other side of the equation, converting the sign to opposite one making +6 to -6

3

x

=

21

−

6

Subtract

3

x

=

15

Divide it by the number with  

x

3

x

3

=

15

3

Final answer

x

=

5

3 0
3 years ago
Read 2 more answers
Both questions please ??
Dima020 [189]
The answers are for 12 is D and for 13 is D
3 0
3 years ago
Question 3 (10 points)
tekilochka [14]

Step-by-step explanation:

<h3>Part A</h3>

<u>Circumference formula:</u>

  • C = 2πr = πd

<u>Find π:</u>

  • 25.12 = 8π ⇒  π = 25.12/8 ⇒ π = 3.14
  • 9.42 = 3π ⇒ π = 9.42/3 ⇒ π = 3.14
<h3>Part B</h3>

<u>Area formula:</u>

  • A = πr² = πd²/4

<u>Find π:</u>

  • 50.24 = π*8²/4 ⇒ 50.24 = 16π ⇒ π = 50.24/16 ⇒ π = 3.14
  • 7.065 = π*3²/4 ⇒ 7.065 = 9π/4 ⇒ π = 4*7.065/9 ⇒ π = 3.14
<h3>Part C</h3>
  • The value of π is same - 3.14 from each case we have
5 0
3 years ago
The total surface area of a cube is 114 in.² what is the length of each side of the cube? It is __ in
Softa [21]

Answer:

16

Step-by-step explanation:

You need to find the answer

6 0
3 years ago
4. A triangle has vertices A(4, 2), B(3, 7), and C(–4, –5).
Alex

To draw the median of the triangle from vertex A, the mid point of BC must be determined. The median of the vertex A is given at (-1/2, 1). See explanation below.

<h3>How you would draw the median of the triangle from vertex A?</h3>

Recall that B = (3, 7)

and            C = (-4, -5).

  • Note that when you are given coordinates in the format above, B or C = (x, y)
  • Hence the mid point of line BC is point D₁ which is derived as:
    D₁ [ (\frac{3-4}{2}) , (\frac{7-5}{2}) ]
  • hence, the Median of the Vertex A = (-1/2, 1).

Connecting D' and A gives us the median of the vertex A. See attached graph.

<h3>What is the length of the median from C to AB?</h3>

Recall that
A → (4, 2); and

B → (3, 7)

Hence, the Midpoint will be

[(\frac{4+3}{2} ), (\frac{2+7}{2} )]

→  (\frac{7}{2}, \frac{9}{2} )

Recall that

C → (-4, 5)

Hence,

\overline{C D_{2} } =  \sqrt{[(-4 -\frac{7}{2} })^{2}  + (-5-\frac{9}{2} )^{2} ]

Simplified, the above becomes


= √(586)/2)

= 24.2074/2

= 12.1037

The length of the Median from C to AB ≈ 12

Learn more about Vertex at;
brainly.com/question/1435581
#SPJ1

5 0
2 years ago
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