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3 years ago

Anyone know the answer to this?

Mathematics

1 answer:

nydimaria [60]3 years ago

8 0

Answer:

-3 plus/minus square root 17 over 4

Step-by-step explanation:

2x squared = -3x + 1 is the same as 2x squared + 3x -1

a=2 b=3 c=-1

sub those into the formula and you get -3 plus/minus square root of 9 + 8 over 2×2

and then you simplify

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Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the elements in the set: A

gtnhenbr [62]

Answer:

$A \cup C=\left \{ \text{q, s, u, v, w, x, y, z} \right \}$

Step-by-step explanation:

Given: $\text{U}=\left \{\text{q, r, s, t, u, v, w, x, y, z} \right \}$ , $\text{A}=\left \{\text{q, s, u, w, y} \right \}$ , $\text{B}=\left \{\text{q, s, y, z} \right \}$ ,

$\text{C}=\left \{\text{v, w, x, y, z} \right \}$ .

To find: The elements in the set $A \cup C$ .

Solution:

We have,

$\text{U}=\left \{\text{q, r, s, t, u, v, w, x, y, z} \right \}$

$\text{A}=\left \{\text{q, s, u, w, y} \right \}$

$\text{B}=\left \{\text{q, s, y, z} \right \}$

$\text{C}=\left \{\text{v, w, x, y, z} \right \}$

Now, $A \cup C$ will contain all the elements in the set $A$ and all the elements in set $C$ .

So, $A \cup C=\left \{ \text{q, s, u, v, w, x, y, z} \right \}$ .

Hence, $A \cup C=\left \{ \text{q, s, u, v, w, x, y, z} \right \}$ .

7 0

3 years ago

The first three terms of a sequence are given. Round to the nearest thousandth (if

Fofino [41]

Answer:

19683

Step-by-step explanation:

1. find the ratio

this is geometric so..

54÷18=3

18÷6=3

2. set up the problem

3(3)^9-1

3^8= 6561

6561(3)=19683

6 0

3 years ago

Question 9

Ratling [72]

4 feet

Because 16/4 is 4

4 0

3 years ago

Answer 17 and 18 for 15 points<br><br><br>

Mkey [24]

17. 62 degrees

18. 38 degrees

5 0

3 years ago

Helpp<br> graph y +2 <-2/3x+4

skelet666 [1.2K]

Answer:

Graph B

Step-by-step explanation:

Step 1) y+2≤-2/3x+4

Subtract 2 from both sides to get y≤-2/3x+2

Step 2) We know the line will be solid because of a "≤" sign. Use (0,0) to determine which side will be shaded.

0≤0+2 is true so the side that includes the origin should be shaded.

3 0

2 years ago