Which statement about equations and expressions is true?
An example of an equation is 4.5 + x = 13.2 because it shows that two expressions are equal.
An example of an expression is 4.5 + x = 13.2 because it shows that two equations are equal.
An example of an equation is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.
An example of an expression is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.

Answer:

13sin4(x) = 39/8 - 13/2cos(2x) + 13/8cos(4x)

Step-by-step explanation:

13sin4(x) = 39/8 - 13/2cos(2x) + 13/8cos(4x)

Answer:

20

Step-by-step explanation:

260/13=20

ppssddssffff

Answer:

5915

Step-by-step explanation:

Ok, so in 5th grade, we were taught to use PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction), to get a long question correct. It has to be in that order, so start with parentheses. Here is the whole equation simplified: 8+1465+7380-2938. Now you will go from left to right. So, you have 1473+4442. And last, simplify, 1473+4442=5915. Hopefully this helped and if it did please mark it brainliest.

Answer:

5,915

Step-by-step explanation:

PEMDAS

P= Paranthesis:

(10-2)= 8

(5x293)=1,465

(82X90)=7,380

Then: AS add and subtract

8+1,465+7,380-2938=

5,915

Answer:

need more info

how many feet is the bow

Answer:

37.5

Step-by-step explanation:

cosФ = \(\frac{A}{H}\)

cos(33°35') = \(\frac{m}{45}\)

m = 45 × cos(33°35')

m = 37.5 (1d.p.)

Step-by-step explanation:

If you are multiplying a fraction and a whole number just make the whole number a fraction by using the whole number as the numerator and a 1 as the denominator.

Answer:

no

Step-by-step explanation:

it is 0.05

Answer:

Noooooooo. i dont think it is. 5/100= 0.05 so no

Step-by-step explanation:

Answer:

false

Step-by-step explanation:

They aren't since 3x has one 'x' term, whereas has two 'x' terms. In order for them to be like terms, they must have the same number and type of term.

Add all of them together, you get 40 then divide by 8 because there are heights listed then the mean height is 5

Answer is 5

Answer: 10

Step-by-step explanation:

17 +15 - 35 + 13

32 - 35 +13

-3 +13

10

Answer:

I don't have that much brain to answer those questions

Answer:

Sorry you're having trouble with this. Attached is a diagram for your problem.

Step-by-step explanation:

Hope it helps!

Answer: The answer is -2/6 :)

Step-by-step explanation:

Answer: -5/24

Step-by-step explanation:

-7/12+3/8 can also be written as

3/8-7/12

The answer will be -5/24

I hope it is right

Answer: y = 6

Step-by-step explanation:

1. Subtract 7 from both sides to isolate -2y.

-2y = -12

2. Divide both sides by -2 to isolate the y.

y = 6

Answer:

141 in²

Obviously don't write 141 in² because they've already wrote the in² part for you

Answer:0

Step-by-step explanation:

-3 + 18 divided by 6

3-(-3)=0

A. m∠4 = m∠1 + m∠2

C. m∠4 = 180° − m∠3

So we can write

m∠4 = m∠1 + m∠2

And m∠4 + m∠3= 180°

m∠4 = 180° − m∠3

Therefore, the correct equations are :

A. m∠4 = m∠1 + m∠2

C. m∠4 = 180° − m∠3

Learn more:https://brainly.com/question/9620417

Answer:

x - y

Step-by-step explanation:

if x is greater than y subtraction will be the result with a positive number.

Answer:

83,000

Step-by-step explanation:

she would have 83,000 after 6 years

because

53,000 + ( 5,000 x 6)

5,000 x 3 is 30,000

53,000 + 30,000 is

83,000

unless you left out a peace of information tell me i would be happy to redo it :)

i did it first uwu lol

Answer:

A (1,3), Reflection: _(1,-3)____________ •

B (-2,-2) Reflection: ___(-2,2)__________ •

C (-4,5) Reflection: ______(-4,-5)_______ •

D (2, -5) Reflection: __(2,5)___________

Answer:

To find the discount on an item, you need to subtract the sale price from the original price and then multiply the result by 100 to express it as a percentage. In this case, the discount would be calculated like this:

Discount = (Original price - Sale price) * 100

Plugging in the prices from the question, we get:

Discount = (95 - 61.75) * 100 = 33.25 * 100 = 3325%

So, the discount on the item is 3325%. This means that the item is being sold for 33.25% less than its original price.

Step-by-step explanation:

Answer: 35%

Step-by-step explanation:

95 - 61.75 = 33.25

33.25 : 95 = 0.35 = 35 % 

Answer:

2n² + 5n - 102 = 0

n = 6

Step-by-step explanation:

The formula for the area of a rectangle is:

\(\boxed{A=w \cdot l}\)

where w is the width and l is the length.

From inspection of the given rectangle:

Given that the area of the rectangle is 90 cm², then A = 90.

Substitute the values of A, w and l into the formula:

\(\implies 90=(n+4)(2n-3)\)

Switch sides:

\(\implies (n+4)(2n-3)=90\)

Expand the left side of the equation using the FOIL method:

\(\implies 2n^2-3n+8n-12=90\)

\(\implies 2n^2+5n-12=90\)

Subtract 90 from both sides:

\(\implies 2n^2+5n-12-90=90-90\)

\(\implies 2n^2+5n-102=0\)

To solve a quadratic in the form ax² + bx + c, find two numbers that multiply to ac and sum to b.

\(\implies ac=2 \cdot (-102)=-204\)

\(\implies b=5\)

Two numbers that multiply to -204 and sum to 5 are:

Rewrite b as the sum of these two numbers:

\(\implies 2n^2+17n-12n-102=0\)

Factor the first two terms and the last two terms separately:

\(\implies n(2n+17)-6(2n+17)=0\)

Factor out the common term (2n + 17):

\(\implies (n-6)(2n+17)=0\)

Apply the zero-product property:

\((n-6)=0 \implies n=6\)

\((2n+17)=0 \implies n=-8.5\)

n = -8.5 is an extraneous solution since this solution gives negative side lengths, which is impossible.

Therefore, the only valid value of n is n = 6.

\(\hrulefill\)

Check by substituting the found value of n:

\(\textsf{Width}=6+4=10\; \sf cm\)

\(\textsf{Length}=2(6)-3=9\; \sf cm\)

\(\textsf{Area}=10 \cdot 9=90\; \sf cm^2\)

Answer:24/8 cups of water

Step-by-step explanation:

I think u just add it up like, 1/8. there were 6 people that did 1/8 so 6/8 cups.  or 3/4.

then 2 people did 1/4 so, that is 2/4, or 1/2. so currently 5/4 cups of water.

3 people did 3/8, so 9/8. 10/8 plus 9/8=19/8

19/8plus 5/8 = 24/8.

i dont know if correct but still try on ur own.

Answer:

(1/8*6)+(1/4*2)+(3/8*3)+5/8=

3/4+1/2+1 1/8+5/8=

6/8+4/8+1 1/8+5/8=24/8

24/8=3

Answer: 3

Answer:

a's answer = E

b's answer = C

c 's answer= D

d 's answer= A

Answer:

Answer c

Step-by-step explanation:

Row one= 70

Row two=112

Row three=154

Row five=238

Row six=280

Answer c

If you find the rate of change which is 42 once you do y=mx+b or in this case y=42 times x + 28, Do that six times and find the choice that will give you the last answer of 280.