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andreyandreev [35.5K]
3 years ago
15

-5(3-r)=30 Please help!

Mathematics
1 answer:
Andrej [43]3 years ago
3 0
The answer to -5(3-r)=30
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Plz help third time putting this
Law Incorporation [45]
LD= 8.9 ! hope this helps and i would rlly appreciate brainliest!!!
8 0
3 years ago
A parabola and its focus are shown on the graph. The vertex of the parabola is at (0,0).
natulia [17]

Answer:

y = -3

Step-by-step explanation:

the length from directrix to vertex is equal to the length from focus to the vertex.

4 0
3 years ago
Read 2 more answers
The daily sales at a convenience store produce a normal distribution with a mean of $1,250 and a standard deviation of $125. The
timama [110]

Answer:

0.6844 is the required probability.        

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $1,250

Standard Deviation, σ = $125

We are given that the distribution of daily sales is a bell like shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find

P(sales less than $1,310)

P( x < 1310) = P( z < \displaystyle\frac{1310 - 1250}{125}) = P(z < 0.48)

Calculation the value from standard normal z table, we have,  

P(x < 1310) =0.6844= 68.44\%

0.6844 is the probability that sales on a given day at this store are less than $1,310.

4 0
3 years ago
What is the answer in fraction form?<br><br>-4/3÷9/5=?
Katarina [22]

Answer:

-20/27

Step-by-step explanation:

-4/3 ÷ 9/5

= -4/3 * 5/9

= -20/27

Hope it helps :)

7 0
3 years ago
Read 2 more answers
Does 10,15,20 form a right triangle
sveta [45]
A right triangle can only be formed when you use the 3/4/5 rule.
The 3/4/5 rule is a^2 + b^2 = c^2.

We will use 10 for a, 15 for b, and 20 for c.

a^2 + b^2 = c^2

Plug in 10 for a, 15 for b, and 20 for c.

10^2 + 15^2 = 20^2

10^2 = 100

15^2 = 225

20^2 = 400

100 + 225 = 400
This is not applicable, as 100 + 225 = 325.

Your answer is:

No, 10,15,20 does not form a right triangle.

I hope this helps!
5 0
4 years ago
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