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Bezzdna [24]
3 years ago
13

Please help I REALLY NEED IT GIVING ALL MY POINTS

Mathematics
2 answers:
Stella [2.4K]3 years ago
8 0

Step-by-step explanation:

1st one

option D

2(x-1)= 2x-2

2nd :

2y- _=0; y =0

optionB= 0

WINSTONCH [101]3 years ago
6 0

Answer:

Number 1 is D

Number 2 is  B

Step-by-step explanation:

Number 1:

2x(x-1)=2x-2

2x - 2 = 2x-2

= 1

Number 2:

2y - 0 = 0; y = 0

2(0) - 0 = 0

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Find a and b to make the following matrices equal.
podryga [215]
We need the following to be true
a+2b = -a
a+4 = 2a - 3b

Let's look at the first equation.
a + 2b = -a
Subtract both sides by a
2b = -2a
b = -a

Substitute b= -a into the second equation
a+4 = 2a + 3a
a + 4 = 5a
4a = 4
a = 1

Just take the negative of that and you get the value of b.
b = -1

Your solution is a=1 and b = -1.

Have an awesome day! :)
4 0
3 years ago
Read 2 more answers
A manufacturer of bicycles has determined that 550 bikes per month will be sold at a price of $250. At a price of $150, it is es
iogann1982 [59]

750 bikes would be sold for $350

Let x represent the number of bikes sold per month and y represent the price.

550 bikes are sold at a price of $250, this can be represented by (550, 250). Also, 750 bikes is sold at a price of $150, hence it is represented by (750, 150)

A linear function is represented by:

y = mx + b

m is the slope, b is the y intercept.

Therefore the function is:

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-250=\frac{150-250}{750-550}  (x-550)\\\\y=\frac{1}{2}x-25

The number of bikes sold for $350 is:

350 = (1/2)x - 25

x = 750

Therefore 750 bikes would be sold for $350

Find out more at: brainly.com/question/13911928

3 0
2 years ago
If we know that 5 cups of flour is used to make 20 biscuits, figure out how many biscuits are made with 15 cups of flour
aleksley [76]

Answer:

100

Step-by-step explanation:

5×4=20

5×15=100

therefore 15 cups of flour can make 100 biscuits

6 0
2 years ago
What is m&lt;BCD<br>OA) 80°<br>OB) 90°<br>C) 100°<br>D) 110°​
wlad13 [49]

Answer:

D

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ BCD is an exterior angle of the triangle, thus

∠ BCD = 50° + 60 = 110° → D

6 0
2 years ago
Marcella bought a 300 pack of candied chocolates. she randomly picked out 30 candies. the results
klemol [59]

Answer:

there are 75 colors of each candy

Step-by-step explanation:

300÷4=75

8 0
1 year ago
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