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Veronika [31]
3 years ago
13

I need help on this. Sorry for the work on my paper.

Mathematics
1 answer:
vazorg [7]3 years ago
5 0
3X+28=200
X represents the amount of money each friend gets


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A garden was originally 20 ft by 23 ft. If both dimensions are decreased by the same amount, the area of the garden will be dece
aliya0001 [1]

Answer:

20ft × 17ft

Step-by-step explanation:

(20-x)(23-x) = (20×23) - 120

460 - 43x + x² = 460 - 120

x² - 43x + 120 = 0

x² - 40x - 3x + 120 = 0

x(x - 40) - 3(x - 40) = 0

(x - 40)(x - 3) = 0

x = 3, 40

x = 3

New dimensions:

(23-3) × (20-3)

20 × 17

3 0
3 years ago
** WILL GIVE 15 POINTS FOR THIS ONE QUESTION + BRAINLIEST **
densk [106]

Answer:

  x + 4y ≤ 15; y ≥ 0

Step-by-step explanation:

The graph doesn't do a very good job of modeling any of the given equations. However, the equations listed above seem the best fit.

The slope of the top (left) line is negative, so the equation will be of the form ...

  x + 4y = something

When y=0, x=15, so the "something" is expected to be 15.

However, the line appears to go through points (6, 2) and (-2, 4). Both of these points are on the line x + 4y = 14.

The graph is shaded <em>below the line</em> so the values of x and y that are in the shaded area will add to <em>less than</em> 15 (or 14). Hence, the inequality will be ...

  x + 4y ≤ something . . . . . part of the 3rd answer choice

The fact that the shading does not go below y=0 means the other limit is ...

  y ≥ 0 . . . . . part of every answer choice.

5 0
3 years ago
Tell whether the lines for each pair of equations are parallel, perpendicular, or neither
Andru [333]
6y = -x - 7 
<span>y= 6x - 3 </span>
<span>__________________ </span>

<span>y = x/6 + 7/6 </span>
<span>y= 6x - 3 </span>

<span>Compare the gradients, one is 1/6, one is 6. These are not parallel because they aren't the same, and not perpendicular because they aren't negative reciprocals. Therefore, neither.</span>
5 0
3 years ago
Read 2 more answers
Determine the length of side QR in the following triangle
Jobisdone [24]

The length of the side QR in the task content can be determined as; 12.22cm.

<h3>What is the length of the third side QR?</h3>

It follows from the task content that 2 lengths and one included angle are given in the task content. It therefore follows that the length of side QR can be evaluated by the cosine rule as follows;

QR² = 13² + 4² - (2×4×13×cos70)

QR = √149.4

QR = 12.22cm

Read more on cosine rule;

brainly.com/question/23720007

#SPJ1

3 0
2 years ago
Determine the function which corresponds to the given graph. a natural logarithmic function crossing the y axis at zero and goin
kogti [31]

Answer:

\text{Required function is} f(x)=-\log_6(x+1)

Step-by-step explanation:

We need to find the function using given condition.

Parent function of log is log x

f(x)=\log x

A natural logarithmic function crossing the y axis at zero and going through the point 5, -1. The asymptote is x = -1

Asymptote is x=-1

So, graph will shift 1 unit right.

f(x)=a\log_b(x+1)

Passing point: (0,0) and (5,-1)

Using these two point we will get a and b

For point (5,-1)

-1=a\log_b(5+1)

-1=a\log_b6

Log to exponent change property

b^{-1/a}=6

We will rearrange the expression

b^{-1/a}=6^{-1/-1}

Now we compare both side to get a and b

So, a=-1 and b=6

Final function we get

f(x)=-\log_6(x+1)

Thus, Required function is f(x)=-\log_6(x+1)


5 0
3 years ago
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