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Alona [7]
3 years ago
13

HEY YALL CAN U HELP PLZ THANK U

Mathematics
1 answer:
maria [59]3 years ago
7 0

Answer: D. 2

Step-by-step explanation:

Given

y-1=2(x--2)

Change signs

y-1=2(x+2)

Expand parenthesis

y-1=2x+4

Add 1 on both sides to isolate "y"

y-1+1=2x+4+1

y=2x+4

So the slope is 2

Hope this helps!! :)

Please let me know if you have any questions

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The function D =25+0.3 X represents the daily dental charge D in dollars for X miles driven
Lady_Fox [76]

Answer:

See Explanation

Step-by-step explanation:

Given

D = 25 + 0.3X

The question has missing details; as what's required is not stated.

However, since it is a linear equation, possible questions could be

1. Determine the slope

2. Determine the D-intercept

3. Calculate the amount in dollars for (say) 5 miles

An equation is represented as:

D = b + mx

Where

b = D\ intercept

m = slope

By comparing: D = 25 + 0.3X to D = b + mx

b = 25 and m = 0.3

This means that the slope is 0.3 and the d intercept is 25

To get the amount for 5 miles, we substitute 5 for x in D = 25 + 0.3X

D = 25 + 0.3 * 5

D = 25 + 1.5

D = 26.5

<em>The cost of 5 miles is $26</em>

Make use of the above explanation to solve the question

4 0
3 years ago
the sum of two numbers is 9. if one number is subtracted from the other, the result is 3. find the numbers
irakobra [83]
X, y - the numbers

The sum of the two numbers is 9.
x+y=9

If one number is subtracted from the other, the result is 3.
x-y=3

Solve the system of equations:
x+y=9 \\&#10;\underline{x-y=3} \\&#10;x+x=9+3 \\&#10;2x=12 \ \ \ |\div 2 \\&#10;x=6 \\ \\&#10;x+y=9 \\&#10;6+y=9 \ \ \ |-6 \\&#10;y=3

The numbers are 6 and 3.
6 0
3 years ago
Read 2 more answers
​Dustin wants to buy a new gaming computer that costs $1,005. ​He has saved $487. How much more money does Dustin need to ​buy t
insens350 [35]

Answer: 518

Step-by-step explanation: Just try it

8 0
4 years ago
Read 2 more answers
The circumference of a circle is 11pi inches. What is the area, in square inches, of the circle? Express your answer in terms of
Eva8 [605]

\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=11\pi \end{cases}\implies 11\pi =2\pi r\implies \cfrac{11\pi }{2\pi }=r\implies \boxed{\cfrac{11}{2}=r} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2\qquad \qquad \implies A=\pi \left( \cfrac{11}{2}\right)^2\implies A=\pi \left( \cfrac{11^2}{2^2}\right)\implies A=\cfrac{121\pi }{4}

4 0
4 years ago
Show how to multiply 46.93×1.8
Shkiper50 [21]
To start off this is multiplication and not addition nor subtraction where you have to line up your numbers like 46.93 + 1.98 No, instead you put them in any order such as 46.93 x. 1.98 --------------- 37544 421370 + 469300 ------------------ 92.9214 ------> This is your answer! 1)Multiply the 3 in 46.93 to the 8 in 1.98 which is 24. 2) Then you multiply the 9 in 46.93 to the 8 in 1.98 which gives you 72 and don't forget to add the 2 from 24. You get 74. 4)You then multiply the 6 in 46.93 to the 8 in 1.98 and you get 48, add the 7 from 74, and you get 55. 5) You multiply the 4 in 46.93 to the 8 in 1.98 and you get 32, plus the 5 from 55 and you get 37. Your first answer should be 37544. 6) After you get this answer, you add a zero underneath the 4 in the one's place from your previous answer. 7) This step might be a little hard to remember, but you do the same procedure as you were doing in steps 1-6. This time on the other hand, you multiply each value in 46.93 to the 9 in1.98. 8)After completing those exact steps, your secondary answer should be 421370. 9) Once having this answer, you multiply 46.93 to the 1 in 1.98 and your third answer should be 469300. 10) The next step is to add up all three of your answers together and you get the final answer. You should be getting 929214. 11) The last and final step is to count the spaces of decimals your multiples' have which are 4, and you move 4 spaces to the left and you get 92.9214.
7 0
4 years ago
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