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Mashcka [7]
3 years ago
5

Factorise FULLY and show working out

Mathematics
1 answer:
Svet_ta [14]3 years ago
6 0
9x^2-9=9(x^2-1)=9(x-1)(x+1)
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Beth has 250 comic books in her collection. She begins to sell 20 of them each week. Martin has 80 comic books in his collection
Nuetrik [128]
Well, after doing all that math, here is what I came up with, I hope this helps! :) -1600x^2+28265x-21830
6 0
3 years ago
What is the y-intercept of the graph of y = 2.5x? a. 2.5 c. 0 b. 1 d. -1
Alla [95]

Answer:

answer is C

Step-by-step explanation:

General equation of a line is expressed as shown:

y = mx+c where;

m is the slope or gradient of the line

c is the intercept of the line

Given the equation of the line graph as y =2.5x

Comparing the given equation with the general equation, it is seen that m = 2.5 and c = 0 (since there is no value for the intercept)

Based on the explanation, the y-intercept of the graph is therefore 0

5 0
2 years ago
Matt is ordering basketball jerseys For his country's league. Last year he ordered 512 jerseys. 64 those jerseys were orange. If
Eduardwww [97]

Answer:

75

Step-by-step explanation:

Step 1

Matt is ordering basketball jerseys For his country's league. Last year he ordered 512 jerseys. 64 those jerseys were orange.

The ratio of all Jerseys to Jerseys that are Orange =

512 : 64

8 : 1

Step 2

If he ordered 600 jerseys this year, how many of them will be Orange if the ratio of orange jerseys to all the jerseys remain the same?

Since we are maintaining the ratio in step 1

Let the number of orange jerseys = x

600 : x = 8 : 1

Hence

600/x = 8/1

Cross Multiply

8 × x = 600 × 1

8x = 600

x = 600/8

x = 75

Therefore, this year, the number of orange jerseys = 75

4 0
2 years ago
Question 8 is attached! Please explain how you got your answer.
AURORKA [14]
I hope this helps you

5 0
3 years ago
Need help with this one please! Worth 30 points!!! :)
Kitty [74]

Answer:

y^2 +8y + 16

Step-by-step explanation:

 6y^2 +2y +5  - (5y^2 -6y -11)

I distribute the minus sign

6y^2 +2y +5  - 5y^2 +6y +11

Then I put them vertical.

6y^2 +2y +5  

-5y^2 +6y +11

------------------------

y^2 +8y + 16


This is in standard from since the exponential decreases.

5 0
3 years ago
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