MATHEMATICS HIGH SCHOOL

Help first gets brainly

Answers

Answer 1

Answer:

Answer:

1. 100 1. 150 1. 1

2.45 2. 800

Step-by-step explanation:

1. 25% * 400 = 0.25 * 400 = $(1)/(4)$ * 400 = 100

2. 50% * 90 = 45

1. 75% * 200 = 0.75 * 200 = 3/4 * 200 = 150

2. 10% * 8000 = 0.1 * 8000 = 800

1. 5% * 20 = 0.05 * 20 = 1

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NEED HELP ASAP PLS!!!!!

Answers

Step-by-step explanation:

1. Octagon- 8 sides

2. Quadrilateral- 4 sides

3. Decagon- 10 sides

4. Nonagon- 9 sides

5. Octagon- 8 sides

6. Nonagon- 9 sides

Hope this helps

John paid $32.16 for groceries this included the 7% sales tax what was the cost of groceries before the sales tax

Answers

The answer is $30.06.

John added 7% of tax to the price before tax which is 100%. So, the price John paid is 107%. If $32.16 is 107%, how many $ is 100% (the price before tax):
$32.16 : 107% = x : 100%

After crossing the products:
x · 107% = $32.16 · 100%
⇒ x = $32.16 · 100% ÷ 107% = $30.06

Therefore, the cost of groceries before the sales tax is $30.06.

Answer The answer would be $30.06

If (x, 1/100) lies on the graph of y = 10x, then x =

2
-1/2
-2

Answers

Answer:

Option 3rd is correct

value of x is, -2

Step-by-step explanation:

As per the statement:

If (x, 1/100) lies on the graph $y = 10^x$

Given the graph:

$y = 10^x$ ...[1]

Substitute the point (x, 1/100) in [1] we have;

$(1)/(100) = 10^x$

We can write $(1)/(100)$ as:

$(1)/(100) = (1)/(10^2) = 10^(-2)$

then;

$10^(-2) = 10^x$

On comparing both sides we have;

-2 = x

x = -2

Therefore, the value of x is, -2

y = 10^x

for y = 1/100

1/100 = 10^x

10^-2 = 10^x ⇒ x = -2

Subtract and simplify. (14x^2+8)-(6x^2+5x-1)

Answers

14x^2 + 8 - (6x^2 + 5x - 1) ...distribute the - thru the parenthesis
14x^2 + 8 - 6x^2 - 5x + 1 ....combine like terms
8x^2 - 5x + 9 <==

Which browser feature will delete your history, cache, and cookies the moment you close the special window? 1) Incognito Mode 2) Private Browsing 3) Delete Browsing History 4) Clear Cache and Cookies

Answers

The answer is 1) Incognito mode

Simplify into one fraction. (-4x/x+7) - (8/x+7)A.
-4x+8/ x+7

B.
x-8/x

C.
-4x-8/x+7

D.
x+7/-4x

Answers

(-4x/x+7) - (8/x+7)

= -4x-8/x+7
so; the answer is (c)... :)

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You are an urban planner assessing the growth of a city. Ten years ago, the city's population was 249,583. Its current population is 318,270. By about what percentage has the city grown over the past ten years? Can anyone explain this one?