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3 years ago

Please help and explain how you got the answer. Im giving out brainliest. || Q4

Mathematics

2 answers:

alexdok [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Inside the parentheses, we see 5+3, which equals 8. Now, do 8x4, which equals 32!

rosijanka [135]3 years ago

4 0

Answer: 32

Step-by-step explanation:

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An acorn falls from the branch of a tree to the ground 25 feet below. The distance, S, that the acorn is from the ground as it f

Hunter-Best [27]

Answer:

$0$

Step-by-step explanation:

We are given that,

The fall of the acorn is represented by the function,

$S(t) =-16t^2+25$

Equating S(t) to 0 gives,

$0=-16t^2+25$

i.e. $16^2=25$

i.e. $t^{2}=\frac{25}{16}$

i.e. $t=\pm \frac{5}{4}$

Since, time cannot be negative.

So, $t=\frac{5}{4}$ i.e. 1.25 seconds is the time when the acorn will reach the ground.

Thus, from the figure below, we see that,

The interval in which the acorn is in the moving air is $0$ .

7 0

3 years ago

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PLEASE HELP⚠️⚠️ Brandi has equal numbers of hip-hop songs and country

son4ous [18]

Answer:

its the equal sign which the hip hop give me a pop says the equations equal

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

List 3 values that would make this inequality true y + 7 > 18

blsea [12.9K]

Answer:It

It can be 12, 13, 14 and more up

Step-by-step explanation:

Is that because 12+7= 19 which is bigger than 18

3 0

3 years ago

4x^2-7x=15 Solve by factoring and please please please explain or show the work

vodomira [7]

Answer:

x=3 and x=-1.25

Step-by-step explanation:

4x^2-7x=15

subtract 15 from each side:

4x^2-7x-15=0

factor (trying different numbers that the sum is 7 and the quotient is 15)

(2x-6 )(2x+2.5 )=0

2x-6=0 add 6 to each side

2x=6

x=3

2x+2.5=0 subtract 2.5 from each side

2x=-2.5

x=-1.25

8 0

3 years ago

A) find the value of 2x+y wehn x =4 and y =3 b) find the value of a^2 + b when a = -2 and b = 5

Reil [10]

Answer:

Solution,

a. Given,

X=4

y=3

Now,

 $2x + y \\ = 2 \times 4 + 3 \\ = 8 + 3 \\ = 11$ 

b. Given,

a=-2

b=5

Now,

 ${a}^{2} + b \\ = {( - 2)}^{2} + 5 \\ = 4 + 5 \\ = 9$ 

hope this helps...

Good luck on your assignment..

6 0

3 years ago