MARKING BRAINLIEST PLS HELP WITH MATHS PLS SEE QUESTION 1

Mathematics

1 answer:

lawyer [7]3 years ago

8 0

Answer:

day 2) 100

day 3) 140

day 4) 180

day 5) 220

day 7) 300

Step-by-step explanation:

the equation would be y= 40x + 20 since 20 is the starting price and everyday you add 40 dollars. put in what day it is as X to get the answer

You might be interested in

Choose the quadratic equation that has a leading coefficient of 8 and solutions -10 and 7/8

Maru [420]

Answer:

$f(x)=8x^2+73x-70$

Step-by-step explanation:

We are given

zeros as -10 and 7/8

now, we can set up function as

$f(x)=a(x-(-10))(x-\frac{7}{8})$

now, we are given that

leading coefficient is 8

so, a=8

now, we can plug it

$f(x)=8(x-(-10))(x-\frac{7}{8})$

now, we can simplify it

$f(x)=8\left(x^2+\frac{73x}{8}-\frac{35}{4}\right)$

so, we get

$f(x)=8x^2+73x-70$

6 0

3 years ago

How would you know if two vectors are perpendicular?

Bezzdna [24]

<span>get their dot product, if the dot product is 0, then they're orthogonal (perpendicular).

also keep in mind that, if two vectors bear the same slope, namely <a,b> and <c,d> and the simplified slope b/a is the same value as d/c, then they're parallel vectors.</span>

4 0

3 years ago

Read 2 more answers

I keep getting exactly 50%! Help!

Y_Kistochka [10]

Total = 242 + 307 = 549 but 242 ordered salad
so
242 / 549 = 0.4408 = 44.08%

answer
C. 44.08%

6 0

3 years ago

Read 2 more answers

Am getting the hang of this but I still need help so may I please get help with this equation -7a+6a^2-10

blagie [28]

The factors are (a - 2) and (6a + 5) . If the expression is equal to zero, then 'a' can be 2, and 'a' can be -5/6 .