MATHEMATICS MIDDLE SCHOOL

What is the solution set to the equation x2 - 4x + 5 = 50?{-9, - 5}
{-9, 5)
{-5, 9}
{5, 9}

Answers

Answer 1
Answer:

Answer:

B. {-9, 5}

Step-by-step explanation:

First, subtract 50 from both sides: x^2-4x-45=0

Factor: (x+9)(x-5)=0

Zero Product Property: x+9=0 and x-5=0, x=-9 and x=5

So the solution set is B

Hope this helped!

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Jimmy Bullard and his friend went for fishing.They got six fishes without heads, nine fishes without the tail and eight fishes cut in two halves.How many fishes did they caught ?
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Identify the period and amplitude of the function

Answers

What’s the function ? I can’t access the photo

A garden contains 20 different species of plants. Five of these plants are ferns. What percent of the garden is made up if ferns?

Answers

Answer:

25%

Step-by-step explanation:

A garden contains 20 different species of plants. Five of these plants are ferns.

Total number of species = 20

In that 20 species , 5 are ferns

WE need to find out how much percentage of 20 is 5

LEts make an equation. x be the percentage

x% of 20 is 5

(x)/(100) \cdot 20 = 5

(x)/(5)= 5

Now multiply both sides by 5

x= 25

So 25% of 20 species plans is equal to 5 ferns
5 out of 20 plants can be written as 5/20.  

A percentage is just a fraction with the denominator being 100.  
100 / 20 = 5. 
5 X 5 = 25
25/100

25% of the garden is made up of ferns

Use cubes. Draw to show how you make ten. find the sum.

Answers

If you're asking for the model for the second problem (I didn't see any unsolved), here it is!

Which of the following are true statements about the expression 5^12? Check all that apply.
A. 5 is the base
B. 5 is the exponent and tells us how many times we should multiply 12 by itself.
C. 12 is the base.
D. 12 is the exponent and tells us how many times we should multiply 5 by itself

Answers

Answer:

A. 5 is the base

D. 12 is the exponent and tells us how many times we should multiply 5 by itself

Step-by-step explanation:

The given expression is

5^(12)

This is a number written in an index notation.

The base is 5.

The exponent is 12.

The exponent tells us how many times the base multiplies itself.

Therefore 5^(12) means, 5 multiplies itself 12 times.

Options A and D are correct.

At a given time of the day, the ratio of the height of an object to the length of its shadow is the same for all objects. If a 3 ft stick in the ground casts a shadow is 1.5ft, find the height of a tree that casts a shadow that is 10.15ft

Answers

Answer:

20.3 ft

Step-by-step explanation:

The object-shadow ratio for the stick= 3÷1.5=2:1

The object-shadow ratio is same for all objects.

Let height of the tree be x

2/1 = x/10.15

x=10.15 * 2=20.3

Please help quickly!Which fraction has the same value as this expression?

A. 5/16
B. 5/4
C. 5/8
D. 5/2

Answers

5⁵*4²*2³/5⁴*4⁴*2³=5*5*5*5*5*4*4*2*2*2=400,000 and 5*5*5*5*4*4*4*4*2*2*2=1,280,000.Now Simplify (400,000)/(1,280,000):(400,000:80,000)/(1,280,000:80,000)= (5)/(16)So, the answer is A. \boxed{ (5)/(16)}
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