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Luden [163]
3 years ago
15

Plzzzz helllp mmmmeee thx

Mathematics
2 answers:
geniusboy [140]3 years ago
7 0

Answer: 3x^2-30x+5

Step-by-step explanation:

Use (a+b)^2=a^2-2ab^2+b2

3(x^2-10x+25)-70

Distribute the 3 which is

3x^2-30x+75-70

Subtract the numbers {75-70} and simplify

3x^2-30x+5

DaniilM [7]3 years ago
5 0
It’s A you have the right answer highlighted
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What is the measure of XYZ shown in the diagram below?
Crazy boy [7]

Answer: A.                                                                                                          

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4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!! i’ll mark brainlest
soldi70 [24.7K]

Answer:

3

Step-by-step explanation:

It owuld be 3 cuz the least significant digit would be used to determine the precision right? So it would be 3!

4 0
3 years ago
1 point
stepan [7]

Answer:

y = 250x

Step-by-step explanation:

<em>The options are not given; however, the question can still be answered.</em>

Given

Direct Proportion:

In 20 minutes, y = 250 bottles

Required

Determine the graph

<em>In the first 20 minutes, y = 250</em>

<em>In the next 20 minutes, y = 250 + 250 = 500</em>

<em>In the next 20 minutes, y = 500 + 250 = 750</em>

<em />

This gives a arithmetic sequence:

250, 500, 750, ........

Next, is to determine the equation of the sequence using;

T_n = a + (n - 1)d

In this case;

T_n = y

x = n

a = 250

d = 750 - 500 = 500 - 250 = 250

Substitute these values in the above formula;

y = 250 + (x - 1) * 250

Open Bracket

y = 250 + 250x - 250

Collect Like Terms

y = 250x + 250 - 250

y = 250x

Hence; the graph that shows the given description is the graph with equation y = 250x

4 0
3 years ago
You roll a die. Find the probability of rolling a three or a four.
Tema [17]

Answer:

The probability is 1/3

Step-by-step explanation:

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8 0
4 years ago
A long distance phone call between two cities costs $3.43 for 7 minutes. What is the rate in cents per minute?
Evgesh-ka [11]
3.43 dollars divided by 7 minutes = 0.49 cents
4 0
3 years ago
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