please help, thank you if you do help me

Answer:

y = -2

x = 4

Explanation:

Make "x" subject in equation 2

Insert this in equation 1

Find for x

Answer:

2.6

Step-by-step explanation:

Divide 8.1 by 2.5

2.6

2.6 rounded to the nearest whole number is 3

3 is your answer

The best statement that compares the length of time each ball is in the air is seen in the second option.

A quadratic function follows the condition: f(x) = ax² + bx + c. Here (a, b, and c) are real numbers and a ≠ 0.  

From the given information:

Where;

The table given is as follows:

Time (in seconds)                 height, g(t) in feet

0                                             4

1                                              36

2                                              36

3                                              4

From the table, when t = 0, the function becomes:

f(t) = -16t² +64t + 5

f(t) = -16(0)² + 64(0) + 5

f(t) = 5

Therefore, we can conclude that the best statement that compares the ball is: f(t) is in the air for about 5 seconds, and the ball represented by g(t) is in the air for about 3 seconds.

Learn more about the function of a quadratic equation here:
https://brainly.com/question/14712068

Answer:

2 1/3 cups for each hiker

Step-by-step explanation:

8bags x 3.5 cups in each bag =28 cups in total
28 cups shared among 12 hikers = 28/12 = 2 1/3 cups for each hiker

Answer:

where are the numbers

Step-by-step explanation:

Answer:

t=4

Step-by-step explanation:

Let's solve your equation step-by-step.

4t−2=14

Step 1: Add 2 to both sides.

4t−2+2=14+2

4t=16

Step 2: Divide both sides by 4.

4t

4

=

16

4

t=4

Answer:

t=4

Answer:

7,986

Step-by-step explanation:

Picture that shows steps and how to do it with formula!!

Hope this helped!!!

~ Kaitlyn

Answer:

a = -3, b = 1

Step-by-step explanation:

1. Plug in the given values into the equations:

a(-1) - b(2) = 1
a(2) + b(-1) = -7

2. Isolate a in the first equation:

a(-1) - b(2) = 1   =   a · -1 - b · 2 = 1

-a - 2b = 1

-a -2b+2b = 1+2b

-a = 1 + 2b

[tex]\frac{-a}{-1} =\frac{1}{-1} +\frac{2b}{-1}[/tex]

a = -1 - 2b

3. Substitute "a = -1 - 2b" in for a in the second equation:

(-1 - 2b)2 + b(-1) = -7

4. Simplify:

-2 - 4b + b(-1) = -7

-2 - 4b -b = -7

-2 -5b = -7

5. Isolate for b:

-2+2 - 5b = -7+2

-5b = -5

[tex]\frac{-5b}{-5} =\frac{-5}{-5}[/tex]

b = 1

6. Substitute the b value into an equation to solve for a:

a = -1 -2 · 1

a = -3 · 1

a = -3

hope this helps!

Answer:

A, C, D

Step-by-step explanation:

P = 2L + 2W

L = 5W - 2

P = 2(5W - 2) + 2W

P = 10W - 4 + 2W

P = 12W - 4

Answer choices A, C, and D = 12W - 4

I hope this helps!

10p

hope it really helps...!!!

Answer:

10p

Step-by-step explanation:

3 +7 =10

p+p=p

3p+7p=10p

Answer:

4

Step-by-step explanation:

Hey there!

To figure this out you need to calculate 4/16

that is 1/4

which is the size of one of the 1/4 circles

1/4 is equal to 4/16 which means the answer is 4

Answer:

The volume is 4,608.

Step-by-step explanation:

To solve for volume, multiply the length (l), width (w), and height (h) values together. So, 24 * 12 * 16 = 4,608. Therefore, the volume is 4,608. Good luck!

Answer:

the answer is 12.61 so that means it's c

Answer:

~ 3.473

Step-by-step explanation:

Assuming that theta means the middle angle at the origin, you are simply finding the sine of -10, and then multiplying it by -20.  Using a scientific calculator, sin -10 comes out to about -0.174.  Multiplying this by -20 gives us about 3.473.

Hope this helps!

By using properties for exponents, we will see that the equivalent expression is:

[tex]2x^{-4}y^6[/tex]

Here you need to remember the property:

[tex]a^n/a^m = a^{n - m}[/tex]

We have the expression:

[tex]\frac{-4x^{-3}y^4}{-2xy^{-2}}[/tex]

We can separate the fraction to:

[tex]\frac{-4x^{-3}y^4}{-2xy^{-2}} = \frac{-4}{-2}*\frac{x^{-3}}{x} *\frac{y^4}{y^{-2}}[/tex]

Now we can simplify by using the above relation, we will get:

[tex]\frac{-4x^{-3}y^4}{-2xy^{-2}} = \frac{-4}{-2}*\frac{x^{-3}}{x} *\frac{y^4}{y^{-2}} = 2*x^{-3-1}*y^{4 - (2)} = 2*x^{-4}*y^6[/tex]

So the correct option is the last one.

If you want to learn more about exponents, you can read:

https://brainly.com/question/8952483

[tex]\\ \rm\Rrightarrow (-4x^{-3}y^4)\div(-2xy^{-2})[/tex]

[tex]\\ \rm\Rrightarrow 2x^{-3-1}y^{4+2}[/tex]

[tex]\\ \rm\Rrightarrow 2x^{-4}y^6[/tex]

Option D

Answer:

2/2

Step-by-step explanation:

all the number are either improper or mixed number etc.

2/2= 1

and u wanted to know which equals one and that is 2/2 because it is 1 whole.

Step-by-step explanation:

just apply the formula you can find immediately on the internet.

that is much faster than putting such a calculation question in here.

the area of a circle is

pi×r²

with r being the radius.

so, in our case we have

pi × 3² = pi × 9 = 28.27433388... ft²

when using 3.14 for pi we get 28.26 ft²

Answer:41 tiles

Step-by-step explanation: this is assumption from other work of the 10x14.225 picture

Answer:

let b = amount of balloons; 10b = 120

Step-by-step explanation:

to do this you should first have a let equation

let b = balloons

then because 10 times the number of balloons is 120 you multiply them

it looks like this

10b = 120

Answer:

7/8

Step-by-step explanation:

7/8 is a larger fraction than 4/5, so the decimal must be larger. You can check this using a calculator, and dividing the numbers.

Answer:

  C.  0.625

Step-by-step explanation:

You want to know if the given decimals are correctly written as the given fractions.

It is generally easier to find the decimal equivalent of a fraction, but some calculators can go the other way, as well.

The decimal 0.625 corresponds to the fraction 5/8, not 7/8.

0.625 was converted incorrectly.

__

Additional comment

You can factor out 125 from numerator and denominator of the fraction equivalent of 0.625:

  [tex]0.625=\dfrac{625}{1000}=\dfrac{5(125)}{8(125)}=\dfrac{5}{8}[/tex]

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Answer:

not possable to answer.

Step-by-step explanation:

Answer:

0.000008 eight millionths is the most accurate answer I came to.

[tex]0.02 * 0.02 = 0.0004 * 0.02 = 0.000008[/tex]

Answer:

0

Step-by-step explanation:

Given

Formula

Solving

Slope:-

[tex]\\ \rm\dashrightarrow m=\dfrac{-8+8}{-4-2}[/tex]

[tex]\\ \rm\dashrightarrow m=\dfrac{0}{-6}[/tex]

[tex]\\ \rm\dashrightarrow m=0[/tex]

This means that a graph of Kassie speed given by the function d = 1.22t would have a slope of 1.22 m/s.

An equation is an expression that shows the relationship between two or more numbers and variables.

Let d represent the number of meters she swims in t seconds. Hence:

d = 1.22t

This means that a graph of Kassie speed would have a slope of 1.22 m/s.

Find out more on equation at: https://brainly.com/question/1214333

There are 12 inches in every foot and the area will be increased by 144 factors.

We know that the feet and inches are the units of length. One foot is 12 inches.

The length and the breadth are given as 11 feet and 13 feet.

The area of the bedroom is 143 square feet.

We know that 1ft = 12 in

So, The length would become 11 feet to 132 inches.

The breadth would become 13 feet to 156 inches.

The area of the rectangle = length × Width

Therefore, the area of the rectangle = 132 ×  156

Since area of the rectangle= 20592 in .sq

The area of the bedroom increased by 144 factors.

To learn more about unit conversion visit:

https://brainly.com/question/13016491

Answer:

There are 12 inches in every foot.

The length and width will increase by a factor of 12.

The area will increase by a factor of 144, since area is length times width.

Step-by-step explanation:

branlist ?

correct on edge 2022

Answer:

The final cost before sales tax is $475.

Step-by-step explanation:

you add the 30% to the 20% and that equals 50% off. Which is half off so you have to divide $950 by 2. That equals $475. Easy :)

[tex]\huge\fcolorbox{blue}{aqua}{Answer:}[/tex]

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Elaine has 14 3/4 cups of flour. She divides the flour into equal portions of 2 7/8 cups. Which is the best estimate for the number of portions she can make?

Answer: [tex]= 5[/tex]

Solution:

[tex]14 \frac { 3 } { 4 } \div 2 \frac { 7 } { 8 } =[/tex]

[tex]\frac{\left(14\times 4+3\right)\times 8}{4\left(2\times 8+7\right)} [/tex]

[tex]\frac{2\left(3+4\times 14\right)}{7+2\times 8} [/tex]

[tex]\frac{2\left(3+56\right)}{7+2\times 8} [/tex]

[tex]\frac{2\times 59}{7+2\times 8} [/tex]

[tex]\frac{118}{7+2\times 8} [/tex]

[tex]\frac{118}{7+16} [/tex]

[tex]\frac{118}{23} [/tex]

=[tex]5 [/tex]

I evaluated it so the answer is= Letter B.[tex]5 [/tex]

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Explanation:

#Carry on learning