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Inessa [10]
3 years ago
15

A line passes through the point (-10, -6) and has a slope of 1/2 .

Mathematics
1 answer:
nalin [4]3 years ago
6 0

Answer:

Step-by-step explanation:

formula for slope-intercept is [ y= mx + b  ]

we are given a point P=(x1,y1) = (-10,-6)

and a slope m of 1/2

use the point slope formula [ y-y1 = m(x-x1) ]  with the given info then work it into the slope-intercept form

y-(-6) = 1/2(x-(-10))

y+6 = 1/2(x+10)

y+6 = 1/2x+5

y= 1/2x + 5-6

y=1/2x-1

this looks like the point-slope form so you are done  :)  

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The ratio of violinists to cellists in the school orchestra must always be 7:3. If the school orchestra has 21 violinists, what
Papessa [141]

Given:

Violinists : Cellists = 7:3.

Number of violinists in the school orchestra = 21

To find:

The combined number of cellists and violinists.

Solution:

Let the number of violinists and cellists in the school orchestra are 7x and 3x respectively.

Then, combined number of cellists and violinists is

\text{Combined number of cellists and violinists}=7x+3x

\text{Combined number of cellists and violinists}=10x      ...(i)

Number of violinists in the school orchestra = 21

7x=21

Divide both sides by 7.

x=3

Now, the combined number of cellists and violinists is

\text{Combined number of cellists and violinists}=10(3)    [Using (i)]

\text{Combined number of cellists and violinists}=30

Therefore, the combined number of cellists and violinists is 30.

5 0
3 years ago
A company earns a weekly profit of P dollars by selling x items, according to the equation P(x)=-5x^2+40x-300. How many items do
STALIN [3.7K]
Since the equation is:

<span>P(x)=-5x^2+40x-300

Solving the equation by using the calculator, the values for x are:

x = 4.72

Therefore, the company must sell 8 items per week to maximize the profit.

</span>I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
3 0
3 years ago
Find the difference of (t-8)-(t-15)
Vsevolod [243]
I think u should try (t-23) because -8 minus - 15 is = to 23 so yeah add the t in front of it
5 0
4 years ago
Somebody help me 7u7
zvonat [6]

Answer:

105 square feet

Step-by-step explanation:

First of all, find the area of the rectangle (length x width). 7*12 = 84. Now, find the area of the triangle [(base x height)/2]. 6*7 = 42. 42/2 = 21.

Add both of these areas together: 84 + 21 = 105. The area is 105 square feet.

5 0
2 years ago
Read 2 more answers
Lucy invested $770 in an account paying an interest rate of 3.2% compounded quarterly. Assuming no deposits or withdrawals are m
irakobra [83]

Answer:

$1930

Step-by-step explanation:

770 + 24.64 (48-1)

there are 4 quarters in a year so you do 48 terms instead of 12.

4 0
3 years ago
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