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densk [106]
3 years ago
12

Find the x intercept and y intercept of -5x-40=y

Mathematics
2 answers:
german3 years ago
7 0

Answer:

x= -8 , y= -40

Step-by-step explanation:

x-intercept:                y-intercept:

-5x-40=y                    -5x-40=y

-5x-40=0                   -5×0-40=y

-5x=40                       y= -40

x=8                            

nataly862011 [7]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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What is the y- intercept of: y=-2x
shusha [124]

Answer:

it is Zero 0

Step-by-step explanation:

7 0
3 years ago
What is the diameter of a sphere that has a diameter of 14cm?
xenn [34]
D=2r
              <span> diameter= 14cm
so, radius= 14/2= 7cm 

</span>
8 0
3 years ago
What is the value of the rational expression 2x^2+5x+9/x^2+2x-1 when x=-2
Sergio039 [100]

Answer:

The value of the Rational expression when x=-2 is: -7

Step-by-step explanation:

For this exercise is important to remember:

  • When a negative number is raised to an even power, the result will be positive.
  • The multiplication of signs:

       (+)(+)=+\\(-)(-)=+\\(-)(+)=-

Then, given the following Rational expression:

\frac{2x^2+5x+9}{x^2+2x-1}

You need to follow these steps in order to find its value when x=-2:

1. Substitute the given value of "x" (x=2) into the expression:

 \frac{2(-2)^2+5(-2)+9}{(-2)^2+2(-2)-1}

2. Evaluate and simplify:

\frac{2(4)+5(-2)+9}{4+2(-2)-1}=\frac{8-10+9}{4-4-1}=\frac{7}{-1}=-7

5 0
3 years ago
Read 2 more answers
calculates the sum of the first 8 terms of an arithmetic progression starting with 3/5 and ending with 1/4
N76 [4]

We conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.

<h3>How to get the sum of the first 8 terms?</h3>

In an arithmetic sequence, the difference between any two consecutive terms is a constant.

Here we know that:

a_1 = 3/5\\a_8 = 1/4

There are 7 times the common difference between these two values, so if d is the common difference:

a_1 + 7*d = a_8\\\\3/5 + 7*d = 1/4\\\\7*d = 1/4 - 3/5 = (5 - 12)/20 = -7/20\\\\d = -1/20

Then the sum of the first 8 terms is given by:

3/5 + (3/5 - 1/20) + (3/5 - 2/20) + ... + (3/5 - 7/20)\\\\8*(3/5) - (1/20)*(1 + 2 + 3+ 4 + 5 + 6 + 7) = 3.4 = 34/10 = 17/5

So we conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.

If you want to learn more about arithmetic sequences:

brainly.com/question/6561461

#SPJ1

6 0
2 years ago
Help Anyone??<br> need it asap<br> 7th grade math<br> tysm
Lelechka [254]

Answer:

149.04

Step-by-step explanation:

after 64 percent off it is $138

then you ad 8% tax to $138

(which you can just put in a calculator)

6 0
3 years ago
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