3 years ago

Can someone help me with a math test

Mathematics

2 answers:

NeTakaya3 years ago

6 0

Answer:

Sure what grade are you in tho?

Inessa05 [86]3 years ago

3 0

Answer:

sure

Step-by-step explanation:

whats it based on?

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(2r - 6)(-5r+4) what is the product

Akimi4 [234]

Answer:

$-10r^{2} +38r-24$

Step-by-step explanation:

Apply FOIL method: $(a+b)(c+d)=ac+ad+bc+bd$

$a=2r,b=-6,c=-5r,d=4$

$=2r(5-r)+2r*4+(-6)(-5r)+(-6)*4$

Apply minus - plus rules

$+(-a)=-a,(-a)(-b)=ab$

$=-2*5rr+2*4r+6*5r-6*4$

Simplify

Multiply $-2*5rr=-10r^{2}$

$=-10r^{2} +2*4r+6*5r-6*4$

Multiply $2*4r=8r$

$=-10r^{2} +8r+6*5r-6*4$

Multiply $6*5r=30r$

$=-10r^{2} +8r+30r-6*4$

Combine like terms

$=-10r^{2} +38r-6*4$

Multiply $-6*4=-24$

$=-10r^{2} +38r-24$

$-10r^{2} +38r-24$

6 0

3 years ago

Given that (9,3) is on the graph of f(x), find the

Serjik [45]

Answer:

Step-by-step explanation:do you have the answers to choose from?

3 0

3 years ago

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Joshua was offered a job that paid a salary of $77,500 in its first year. The salary was set to increase by 2% per year every ye

nalin [4]

Answer:

if you want it as dollars and cents it is $77.50 but in nearest whole number it would be 78 dollars

Step-by-step explanation:

step 1: multiply the 2 by 5 and you get 10%

step two: you put 10 over 100 and multiply 77,500

10/100 x 77,500/1= $77.50

but when you roung it off you get 78 dollars

5 0

2 years ago

Read 2 more answers

The even integers greater than or equal to 16

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<span>Best you can do is describe a set:

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3 years ago

Alan bought 20 yards of fencing. He used 5.9 yards to surround one flower garden and 10.3 yards to surround another garden. Writ

Artist 52 [7]

You would add 10.3 and 5.9 which would equal 16.2, and subtract that from 20 and change that decimal into a fraction, which would be 19/50

4 0

3 years ago

Can someone help me with a math test​

Can someone help me with a math test