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azamat
4 years ago
5

Can u please help me with al of these

Mathematics
1 answer:
klio [65]4 years ago
6 0
I hope this helps you

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What is the equation of the line that passes through the points (1, 2) and (-2, -13)?
kenny6666 [7]

Answer:

y = 5x - 3

Step-by-step explanation:

As we move from the point  (-2, -13) to the point (1, 2), we see the x-value (the 'run') increasing by 3 and the y-value (the 'rise') increasing by 15.  Therefore the slope of the line passing thru these two points is m = rise / run = 15/3, or m = 5.

Using the slope-intercept formyula y = mx + b, we find the y-intercept as follows, using 1 for x, 2 for y and 5 for m:

2 = 5(1) + b, or

b = -3

Then the desired equation is

y = 5x - 3

3 0
3 years ago
Blake is working two summer jobs, making $9 per hour washing cars and making $22 per hour tutoring. In a given week, he can work
dybincka [34]

Answer:

14x10 5step-by-step explanation: 105=

100,0001 4x10,000 140,000.

More

4 0
3 years ago
How can you find the area of an irregular polygon using area formulas?
algol [13]
Divide the polygon into separate shapes.  Like a rectangle and then a triangle.  
find the areas of those shapes and then add them together.

6 0
3 years ago
the area of a parallelogram is 48cm².if the two adjacent sides are 8cm and 6cm, find the length of its diagonal .​
Travka [436]

Answer:

10cm

Step-by-step explanation:

Assuming the shape is a rectangle since it's already stated that it's a parallelogram, and the area is stated, we can use the Pythagorean theorem to find the length

a^{2} +b^2=c^2, where c will be the length

isolate c

c^2=a^2+b^2

c=\sqrt{a^2+b^2}

substitute for a and b

c=\sqrt{8^2+6^2}

c=\sqrt{64+36}

c=\sqrt{100}

c=10

3 0
3 years ago
Justin has two coupons for a phone.
Ghella [55]

Answer:

1) Coupon A gives the lower price.

The price with coupon A is less than the price with coupon B.

Step-by-step explanation:

Here, according to the given details:

<u>Coupon A : $45 rebate on $65 phone</u>

So, the actual paid price for phone  = $65 - $45 = $20

If we apply Coupon A , the cost of the phone  = $20

<u>Coupon B : 65% off on $65 phone</u>

Now, calculating 65% of 65, we get:

\frac{65}{100}  \times 65 = 42.25

So, the discounted amt on $65 phone is $42,25

So, the actual paid price for phone  = $65 - $42.25 = $22.75

If we apply Coupon B , the cost of the phone  = $22.75

Hence, Coupon A gives the lower price.

The price with coupon A is less than the price with coupon B.

3 0
3 years ago
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