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frozen [14]
3 years ago
9

A restaurant that makes deliveries plotted data points on a scatter plot showing the relationship between x, the number of miles

between the restaurant and the point of delivery, and y, the number of minutes between the time an order is placed and the time it is delivered. The equation of the line of best fit for the data was y = 2x + 6
Which conclusion is correct?
A) the y - value for each of the data points on the plot was 2x + 6
B) The time of delivery for the next order is found by evaluating the expression 2x + 6
C) It takes the restaurant about 6 minutes to prepare each order for delivery
D) It takes the restaurant about 2 minutes to prepare each order for delivery
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0
Given:
y = 2x + 6
x - the number of miles between restaurant and point of delivery
y - the number of minutes between the time an order is place and the time it is delivered.

The correct conclusion is:
<span>C) It takes the restaurant about 6 minutes to prepare each order for delivery 


2x is the time it takes to deliver the order, every mile is traveled within 2 minutes.
6 is the number of minutes it takes to prepare the order before it will be set out for delivery.

</span>
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What is the verbal sentence for x^2 -9=27
Ratling [72]
X^2 - 9 = 27

the square of a number x decreased by 9 is 27
8 0
3 years ago
Maria, Ahmad, and Bob sent a total of 52 text messages during the weekend. Maria sent fewer messages than Bob. Ahmad sent times
nadya68 [22]

Answer:

Maria sent 7 messages

Bob sent 5 messages

Ahmad sent 45 messages

Step-by-step explanation:

Given that Maria, Ahmad, and Bob sent a total of 52 text messages during the weekend.

If Maria sent fewer messages than Bob, and Ahmad sent times as many messages as Bob

Since the exact figures were not given, then let make an assumption that Ahmad sent 9 times as many messages as Bob.

If Bob sent 5 messages, then, Ahmad will send 5 × 9 = 45 messages

Also, it is given that Maria sent fewer messages than Bob. Take 45 away from 52. That is,

52 - 45 = 7

Therefore,

Maria sent 7 messages

Bob sent 5 messages

Ahmad sent 45 messages

7 0
3 years ago
A diagonal of a cube goes from one of rhe cube's top corners to the opposite corner of the base of the cube. Find the length of
miss Akunina [59]
So we are trying to find this red line's length.

We can either find it directly, or use the blue line firs, and then use it as a leg for the green triangle.

So the blue leg is a hypotenuse for two of the edges. So:

blue^2 = leg^2 + leg^2 from the Pythagorean Theorem
OR
blue =  \sqrt{leg^2 + leg^2}

Which works out to:

blue =  \sqrt{10^2 + 10^2} =  \sqrt{100+100} = \sqrt{200} =  \sqrt{(100)(2)}=10 \sqrt{2}

So now that we have that, using the Pythagorean Theorem again gives:

red =  \sqrt{blue^2 + 10^2} =  \sqrt{(10 \sqrt{2})^2+10^2}= \sqrt{200+100}= \sqrt{300}
\sqrt{300}= \sqrt{100*3}=10 \sqrt{3}

So the length of the red line is found that way.

But wait!  There's more!

As it turns out, the red line can be found with an easier way that works with cubes and boxes (cuboids). It's really easy:

a^2 + b^2+c^2=d^2

Where a, b, and c are all 10m, and d is the red line. This greatly reduces the math:

d =  \sqrt{10^2+10^2+10^2} = \sqrt{100+100+100} =  \sqrt{300}

which gives the same answer as above, which you can see.

3 0
3 years ago
Help fast !!!!!!!!!!!
Semmy [17]

Answer:

tbh I think its the middle one

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
1 (a) (i) Yasmin and Zak share an amount of money in the ratio 21 : 19.
cupoosta [38]

Answer: 1(a) $120

(ii a) $34

Step-by-step explanation:

21-19 = 2

$6/2=3

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63+57=120 - (1 A ans)

(ii a) 40x0.15 (percentage decrease)= 6

40-6 = $34

4 0
3 years ago
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