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3 years ago

Circle the perfect squares

Mathematics

1 answer:

ddd [48]3 years ago

8 0

No circle can never be the perfect squares

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3x + 2y = 14 x + 2y = 6

patriot [66]

Answer:

Step-by-step explanation:

3x+2y=14

x+2y=6

2x=8

x=4

Substitute 4 x in equation 1

3(4)+2y=14

y=1

5 0

3 years ago

Read 2 more answers

In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer . Roy answered all t

katovenus [111]

Answer:

20 questions

Step-by-step explanation:

Given

$Correct \Marks= +5$

$Incorrect\ Marks= -2$

$Score\ Obtained = 30$

$Number\ of\ correct\ answers = 10$

Required

Number of questions answered

First, we need to get the total correct marks obtained by Roy

This is calculated by multiplying the correct marks by number of correct answers

$Total = +5 * 10$

$Total = +50\ marks$

Subtract this from the total scores obtained; This gives the total incorrect answer obtained by Roy

$Incorrect = Scores\ Obtained - Total$

$Incorrect = 30 - (+50)$

Open bracket

$Incorrect = 30 - 50$

$Incorrect = -20$

Divide this by -2 to get the number of incorrect answers

$Incorrect\ Answers = \frac{-20}{-2}$

$Incorrect\ Answers = 10$

Add this to the number of correct answers to give the total number of question answered

$Total = Correct\ Answers + Incorrect\ Answers$

$Total = 10 + 10$

$Total = 20$

Hence, Roy answered a total of 20 questions

3 0

3 years ago

A physician orders a dosage of 85mg. The drug on hand is labeled “0.1g in 1.5mL”. How many ML should the pharmacy technician giv

marin [14]

Answer:

Step-by-step explanation:

0.1 g = 100 mg

85 mg / 100 mg = x mL / 1.5 mL

x = 1.275 mL

7 0

2 years ago

What is one possible value of 2x

Georgia [21]

Answer:

really good

Step-by-step explanation:

<h2>thanks for your help you with that do not have a copy of the receipt for your time to help you with the</h2>

5 0

2 years ago

Solve each equation. Showing your reasoning. X^2-6x-20=7

scoundrel [369]

Answer:

x=-3,x=9

Step-by-step explanation:

x^2-6x-20-7=0

x^2-6x-27=0

x^2-(9-3)x-27=0

x^2-9x+3x-27=0

x(x-9)+3(x-9)=0

(x+3)(x-9)=0

x=-3,x=9

4 0

3 years ago