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Tanya [424]
3 years ago
15

a line has a slope of -2 and includes the points (-1,r) and (2,4). write the value of r in the empty box

Mathematics
1 answer:
guajiro [1.7K]3 years ago
4 0

Answer:

r= 10

Step-by-step explanation:

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PLEASE HELP ME answer these
Ilia_Sergeevich [38]

Answer:

x = 10

Step-by-step explanation:

By using the similar theorem of a triangle, we can find the value of x

From the diagram;

2x-12/4 = 6+2x-12/4+3

2x-12/4 = 2x-6/7

Cross multiply

4(2x-6) = 7(2x-12)

8x - 24 = 14x - 84

8x - 14x = -84 + 24

-6x = -60

x = 60/6

x = 10

Hence the vaue of x is 10

5 0
3 years ago
While on vacation in Mexico, Karla’s family exchanged 250 dollars for 5,000 pesos. Karla bought a statue of a surfing monkey for
Serjik [45]

Answer:

$23.26

Step-by-step explanation:

8 0
3 years ago
Solve the equation 4 sin (x +30°) = 2<br>for 0 &lt; x &lt; 365​
tatuchka [14]

>

4 \sin(x + 30)  = 2 \\  \sin(x + 30 ) =  \frac{2}{4}   \\  \sin(x + 30)  =  \frac{1}{2}  \\  \sin(x + 30)  =  \sin(30)  \\ x + 30 = 30 \\ x = 30 - 30 \\ x = 0

Hence, x = 0°, 180° and 360° <em><u>Ans</u></em>

3 0
3 years ago
Two equivalent expressions are shown in the equation where a and b are both integers.
Aleksandr-060686 [28]

Answer:

B=6

Step-by-step explanation:

3 0
3 years ago
Annie needs $30 to buy a coat she has saved $12 and plans to work as a baby siter to earn $6 per hour which inequality shows the
tekilochka [14]

Answer:

The answer would be B. 12 + 6n is greater than or equal to 30, so n is less than or equal to 3.

explanation:

I'm bad with explaining things, but I'll try my best to explain why this is the right answer.

12 + 6n ≥ 30, so n ≤ 3

let's start with the 12 at the beginning of the inequality, Annie already has $12, so the 12 in the inequality shows the amount of money she already has being added to the $6 per hour of babysitting she needs to do (n).

Now for the + 6n, the plus is there to show that the $12 Annie already has is being added to the 6n. The 6n then represents the $6 Annie makes each hour and the n represents how many hours she needs to babysit in order to get $30. The 6 is being multiplied by the amount of hours she needs to babysit to show how much money Annie would make. Then you add on the $12 she already has.

Annie then needs at least $30, but if she makes more than $30 then she will simply have more money than needed, therefore you use the greater than or equal to sign to show that she can have more money than just $30 after working.

I hope this helps, and sorry if my explanation is hard to understand lol.

6 0
3 years ago
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