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3 years ago

Hellllpppp pleaseee??

Mathematics

2 answers:

brilliants [131]3 years ago

8 0

Answer:

Step-by-step explanation:

(1/4 + 5/4)^2 + 3/4

(3/2)^2 + 3/4

9/4 + 3/4

1. start in the parenthesis by adding 1/4 by 5/4 to get 3/2.

2. calculate the 3/2 by the power of 2 and get 9/4

3. add 9/4 by 3/4 to get 3

Advocard [28]3 years ago

7 0

Answer:

The answer is 3

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Write the equation of the line graphed i will give brainliest

marissa [1.9K]

Answer:

y=0.8x

Step-by-step explanation:

take two points from the graph

(5,4) and (0,0)

then do y2-y1/x2-x1

4-0/5-0

4/5=.8

6 0

3 years ago

A shirt originally cost $38.48, but it is on sale for $26.94. What is the percentage decrease of the price of the shirt? If nece

Vladimir79 [104]

Answer:

30(D)

Step-by-step explanation:

38.48-26.94=11.54

11.54÷38.48×100

≈30

8 0

2 years ago

Set up an equation and solve the following problem.

nordsb [41]

Answer:

The speed of Dave is 42 miles per hour

The speed of Kent is 46 miles per hour .

Step-by-step explanation:

Given as :

The distance cover by Dave = d = 210 miles

The time taken by Dave = t hour

The speed of Dave = s miph

Again

The distance cover by Kent = D = 230 miles

The time taken by Kent = T hour

The speed of Kent = S = (s + 4 ) miph

For Dave

Time = $\dfrac{\textrm Distance}{\textrm Speed}$

So, t = $\dfrac{\textrm d miles}{\textrm s miph}$

Or, t = $\dfrac{\textrm 210 miles}{\textrm s miph}$

For Kent

Time = $\dfrac{\textrm Distance}{\textrm Speed}$

So, T = $\dfrac{\textrm D miles}{\textrm S miph}$

Or, T = $\dfrac{\textrm 230 miles}{\textrm (s + 4) miph}$

∵ Time taken by both is same

So, t = T

Or, $\dfrac{\textrm 210 miles}{\textrm s miph}$ = $\dfrac{\textrm 230 miles}{\textrm (s + 4) miph}$

Or, 210 × (s + 4) = 230 × s

Or, 210 × s + 210 × 4 = 230 × s

Or, 210 × 4 = 230 × s -210 × s

Or, 210 × 4 = 20 × s

∴ s = $\dfrac{840}{20}$

i.e s = 42 miph

So, The speed of Dave = s = 42 miles per hour

Again

The speed of Kent = S = (s + 4 ) miph

i.e S = 42 + 4

or, S = 46 miph

So, The speed of Kent = S = 46 miles per hour

Hence,The speed of Dave is 42 miles per hour

And The speed of Kent is 46 miles per hour . Answer

8 0

3 years ago

Function help please

Korvikt [17]

Answer:

The first table represents a function.

Step-by-step explanation:

For it to be a function, there needs to be 1 unique y value of 1 unique x value.

Looking at 2nd table, we see x value of -5 is mapped to 2 different y values of -5 and 5. So this is not a function.
Looking at 3rd table, we see x value of -2 is mapped to 2 different y values of 2 and 4. So this is not a function.
Looking at 4th table, we see x value of -4 is mapped to 2 different y values of 2 and 0. So this is not a function as well.

Looking at table 1, there are no duplicate x values and each of the 4 x values map to different values. So the first table represents a function.

4 0

3 years ago

*URGENT* I don’t understand this and i don’t know the answers, please help!!

motikmotik

Answer:

A) x>8

B) x<4

Step-by-step explanation:

A) 3x+5>29

3x>24

x>8 (It's greater than because the angle opposite is greater than the other angle)

B) 6x-17<7

6x<24

x<4 (It's less than because the angle opposite is smaller than the other angle)

8 0

3 years ago