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VMariaS [17]
2 years ago
7

Lisa solved 3x2 + 1 = 28 as shown.

Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
4 0

x squared = 9  NOT x

x = square roots of 9 which is +3 or  -3.

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What is probability of P(5)?m
olganol [36]
P(A) means "Probability of Event A" The complement is shown by a little mark after the letter such as A' (or sometimes Ac or A): P(A') means "Probability of the complement of Event A" The two probabilities always add to 1.
8 0
2 years ago
Sam the Hummingbird flies at a rate of 2 yards per minute, as modeled by the equation y = 2x. She
daser333 [38]

Answer:

See attachment for plot

Step-by-step explanation:

Given

y =2x

R =+2 --- increment in the rate

First, we need to model the new rate

A linear equation is:

y = mx + b

Where

m = rate

Compare y =2x and y = mx + b. we have:

m =2

The above represents the previous rate.

The new rate:

R =+2

Rewrite as:

R = m+2

R = 2+2

R = 4

So, the model is:

y = Rx

y = 4x

<u>The plot at 1 and 2 minutes</u>

When x = 1

y = 4x = 4 * 1 = 4

When x = 2

y = 4x = 4 * 2 = 8

So, we have:

(x_1,y_1) =(1,4)

(x_2,y_2) =(2,8)

<em>Whether she moves backwards or forward, the distance covered remains the same</em>

<em>See attachment for plot</em>

5 0
2 years ago
Write an equation in point-slope form of the line that passes through (3, -8) and (7,-2).
sashaice [31]

Answer:

A line that passes through (3, -8) and (7,-2).

Denote equation of that line: y = ax + b

=> Slope a can be directly determined by:

a = (7 - 3)/(-2 - -8) = 4/6 = 2/3

=> y = (2/3)x + b

This line passes (3, -8), then: -8 = (2/3)*3 + b => -8 = 2 + b => b = -10

=> y =(2/3)x - 10

There are other ways to find equation of line.

Hope this helps!

:)

3 0
2 years ago
Read 2 more answers
2q+4q+3 what do it equal
Leto [7]

Add the similar variables (think apple+apple), in this case, we would add 2q+4q.

Well, what is 4 apples plus 2 apples? 6 apples, simply, 6q

Since 3 is without a variable, we will leave it as is

Therefore, 2q+4q+3= 6q+3

Hope this helped :)

8 0
3 years ago
Read 2 more answers
PLEASE HELP, LAST THING I NEED TO GRADUATE
Mice21 [21]
For a), wouldn't you multiply the cost of a twin by the quantity of a twin beige (N) and the cost of a queen by the quantity of the queen beige (N) and then the cost of the king by the quantity of the king beige (N) for CN and do the same thing but with the south quantities? 
And then for b), it's just comparing which one had the most money and find the difference... 
And then C), would be relatively self explanatory where CN would be the potential profit in N and CS would be the potential profit in S and then CN+CS would be the potential profit total? 

7 0
2 years ago
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