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3 years ago

Please help me out!!!

Mathematics

2 answers:

Alecsey [184]3 years ago

5 0

Answer:

Step-by-step explanation:

if u substitute -4 in the equation it will give u a math error

Eva8 [605]3 years ago

4 0

Answer:

Step-by-step explanation:

expression : √2x + 7

A) √2(-1) + 7 = √5

B) √2(2) + 7 = √11

C) √2(-3) + 7 = 1

D) B) √2(-4) + 7 = √i

substituting the values given into the equation,

Option D is the best answer to give imaginary number

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A line passes through the point (-8, 2) and has a slope of -5/4.

UNO [17]

Answer:

y=-5/4x-8

Step-by-step explanation:

2=-5/4(-8)+b

2=10+b

2-10=10-10b

-8=b

8 0

3 years ago

Are my answers correct?

Svetlanka [38]

I believe it's all correct.

4 0

3 years ago

Read 2 more answers

The scale of a map is 1:4 000 000. Hint: 1:4 000 000 means that 1cm on the map = 4 000 000 on the ground. The distance between L

GrogVix [38]

Answer:

325 km

Step-by-step explanation:

Given the scale :

1 : 4 ,000, 000

1cm measure in map = 4000000 on the ground

From the map :

Distance between Leeds and London = 8.125 cm

The actual distance on ground can be calculated thus :

1cm = 4,000,000

8.125cm = x

Cross multiply

x = 32500000 cm

Converting to kilometers :

1 km = 100,000 cm

x = 32500000

Cross multiply

100,000x = 32500000

x = 32500000 / 100000

x = 325

Hence, actual distance between Leeds and London is 325 km

3 0

3 years ago

Determine whether the underlined number describes a population parameter or a sample statistic. Explain your reasoning. Modifyin

torisob [31]

Answer:

Step-by-step explanation:

8 0

4 years ago

The sum of two numbers is 51. Four times the smaller number is 24 more than the larger number. What are the numbers?

KiRa [710]

The smaller number is 15 and larger number is 36.

Step-by-step explanation:

Let,

Smaller number = x

Larger number = y

According to given statement;

The sum of two numbers is 51.

x+y = 51 Eqn 1

Four times the smaller number is 24 more than the larger number.

4x = y+24

4x - 24 = y

y = 4x-24 Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$x+(4x-24)=51\\x+4x-24=51\\5x=51+24\\5x=75$

Dividing both sides by 5

$\frac{5x}{5}=\frac{75}{5}\\x=15$

Putting x=15 in Eqn 2

$y=4(15)-24\\y=60-24\\y=36$

The smaller number is 15 and larger number is 36.

Keywords: linear equation, substitution

Learn more about linear equations at:

#LearnwithBrainly

5 0

3 years ago

Read 2 more answers