I’m not really sure how to do these problems.

Answer:

The answer is x = 5

Step-by-step explanation:

I added similar elements, then I subtracted 7 from both sides, next I divided by 5 both sides, and lastly I got x = 5 as my answer.

Answer:

Model: [tex]y = 14t+\frac{1}{2}(32.16)t^{2}[/tex]

The dog land on the ground after 0.8706 seconds.

Step-by-step explanation:

The model that said the height of the dog above the ground is a model of uniform acceleration motion, so it is:

[tex]y = y_0+v_0t+\frac{1}{2}gt^{2}[/tex]

Where [tex]y_0[/tex] is the initial height, [tex]v_0[/tex] is the initial velocity and [tex]g[/tex] is the gravity.

So, replacing [tex]y_0[/tex] by zero, [tex]v_0[/tex] by 14 feet per second and [tex]g[/tex] by [tex]32.16 ft/s^2[/tex], we get that the model  for the height of the dog above the ground is:

[tex]y = 14t+\frac{1}{2}(32.16)t^{2}[/tex]

Then, the time t when the dog land on the ground is calculated replacing [tex]y[/tex] by zero and solving for t as:

[tex]y = 14t+\frac{1}{2}(32.16)t^{2}\\0 = 14t+\frac{1}{2}(32.16)t^{2}\\0 =t (14 - 16.08t)[/tex]

Now, we have two possible solutions:

[tex]t=0[/tex] or [tex]14-16.08t=0[/tex]

Taking into account that t=0 is the time when the dog leaps into air, the time when the dog land on the ground is equal to 0.8706 seconds and it is calculated as:

[tex]14-16.08t=0\\14=16.08t\\\frac{14}{16.08}=t\\t=0.8706[/tex]

Answer:

187.5

Step-by-step explanation:

Answer:

20in^2

Step-by-step explanation:

Since you multiply the original area of the triangle by the scale factor to get the new area, you can find the original area (before dilation) by dividing the dilated triangle's area by the scale factor. Since 100 is the area of the dilated triangle, and 5 is your scale factor, you do 100/5 to get the area of the triangle before it was dilated.

Answer: $11.60 per dozen

Step-by-step explanation:

2.90=3 muffins

Multiply both sides by 4

3x4=12 ( a dozen)

2.90x4= 11.60

Hope this helps :)

Answer:

restless and nervous (not sure doe)

Step-by-step explanation:

I did the quiz! <3

Answer:

Restless and Nervous.

Step-by-step explanation:

I did the quiz and got it right.

Answer:

7 terms

Step-by-step explanation:

A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them. ... Examples of single terms: 3x is a single term.

Answer:

its 4 terms

the coefficients are numbers combined with the variable and 4 is also a term

Answer:

x = -5/3

-1.667

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

B represents the area of the base

B = 12 × 2 = 24 cm²

h represents the height and in this prism h = 9 cm

V = Bh = 24 × 9 = 216 cm³

Answer:The variable B stands for the (1)

In this prism, B equals in.2. (1)

The variable h stands for (2)

In this prism, h is  in. (2)

The volume of the prism is (3)

Step-by-step explanation: hope you live good! (I got bored with hope this helps In case you were wondering)

Answer:

Tell me if its blurry i can send it to you again

Step-by-step explanation:

Answer:

Yeah just look at the other answer i got that answer also

Step-by-step explanation:

Answer: —20.7

Step-by-step explanation: Got it right the assignment

Answer:

-20.7

Step-by-step explanation:

did the assignment and got it right good luck <3

Answer:

A. Scalene Triangle

Step-by-step explanation:

On a Scalene Triangle all angles are different.

Answer:

Step-by-step explanation:

B

Answer:

B

This is true because the value increases from the initial value.

So it is 109%

So you multiply by 1.09

Answer:

16=x

Step-by-step explanation:

Answer:

a) 48

b)

c) 13, 23, 43,

Step-by-step explanation:

since i helped you with a and c, try and figure out b on your own.

i will give you a link if you want it so you can watch a video on how to find square numbers

Answer:

a) 48

b) 81

c) 13, 23, 43

Step-by-step explanation:

[tex]\sqrt{81} =9[/tex]

Answer:

The graph of the function is negative on (3,0)

Step-by-step explanation:

The limiting behavior of a function describes how a function behaves as x ⇒ ±∞. Its behavior is determined by the degree of a polynomial and the sign of its leading coefficient.

Since the function [f(x)] is an even degree polynomial with negative leading coefficient, then f(x) ⇒ -∞ as x ⇒ ±∞. The graph of the function is negative at the root. Since it has a root of 3, The graph of the function is negative on (3,0)

Answer:

The graph of the function is negative on (3, infinity) The answer is D

Step-by-step explanation:

Answer:

2z(2z+1)

Step-by-step explanation:

Write the equation for the area and then factor the polynomial to find the possible expression for the length and width.

A = 4z2 + 2z The GCF of 4z2 and 2z is 2z.

= 2z(2z) + 2z(1) Write the terms as products using the GCF as a factor.

= 2z(2z + 1) Use the distributive property to factor out the GCF. Possible expressions for the dimensions of the wall are 2z m and (2z + 1) m.

The requried expression of the length and width is (2z + 1) and 2z.

A number or algebraic expression that evenly divides another number or expression—i.e., leaves no remainder—is referred to as a factor.

Here,
As mentioned in the question, the amount of paint needed to cover a wall is proportional to its area.

The wall is rectangular and has an area of 4z² + 2z square meters. According to the question, we have factored this polynomial to find possible expressions for the length and width of the wall.
So,
Area =  4z² + 2z

Takin common 2z
Area = 2z × (2z + 1)

Comparing the above expression with
Area of rectangle = width × length

From comparison,

Length = (2z + 1)
Width = 2z

Thus, the requried expression of the length and width is (2z + 1) and 2z.

Learn more about Factors here:

https://brainly.com/question/24069312

#SPJ2

Answer:

77

Step-by-step explanation:

10%=11

because you divide 110 by 10.

Then i would multiply that by 3, giving you 33

110-33=77

The sale price of an item normally priced at £110 is £77.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given that all items are reduced by 30% on a sale.

An item that normally priced at £110 reduced by 30%.

So, 30 percentage of £110

= 30% of £110

= 110×30/100

= 3300/100

= 33.

Therefore, the sale price of an item normally priced at £110 is £77.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ2

Answer:

a... 6x^8y^5

b.... 4x^5z^8

c.... 12a^9b^7

d.... 6s^6t^3

Answer:

A) 1 & 7, 2 & 8

Step-by-step explanation:

Answer:

A. Opaque materials

B. Transparent materials

C. Translucent and Opaque materials

D. Transparent and Translucent materials

Answer:

x=40/9

Step-by-step explanation:

[tex] \frac{x}{16} = \frac{10}{36} |first \: you \: cross \: multiply| \\ x(36) = 16(10) |open \: bracket | \\ 36x = 160 |divide \: both \: side \:by \: 36 | \\ \frac{36x}{36} = \frac{160}{36} \\ x = \frac{40}{9} [/tex]

Answer:

A   4

Step-by-step explanation:

the given numbers round off to 11 and 3.  11/3 is a bit less than 4.  Answer A (4) is the best approximation of the answers given.

Answer:

4

Step-by-step explanation:

KFC

first convert it into improper fraction

56/5 divided by 11/4

then do KFC

56/5 times 4/11

224/55

then you divide 224 by 55

which gives you 4

Answer:

17

Step-by-step explanation:

I got this right on a test i did 4 days ago

Answer:

x = 2 +  √ 42 ,  2  −  √ 42

Decimal Form:

x = 8.48074069 ,  − 4.48074069

Step-by-step explanation:

Solve the equation for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

Answer:

Reflection over the y axis

Step-by-step explanation:

You can picture this graph on a piece of paper.  If you fold the paper over the y axis/ the line in the middle, T would map onto T', S onto S' and R onto R'.  This is a reflection

Answer: 44%

Step-by-step explanation: First, let's add up all the children in the classroom...

15 + 12 = 27

There's 15 boys, therefore have to divide 15 by 27...

15 ÷ 27 = 0.55 x 100 = 55%

Now, let's divided the total amount of girls...

12 ÷ 27 = 0.44 x 100 = 44%

44 + 55 = 99%

The perecent of girls in the classroom are 44%, I hope this helps!

Answer:

[tex]n=-4.5m[/tex]

Step-by-step explanation:

solve for n so that m becomes the independent variable

[tex]-2m-5n=7m-3n[/tex]

[tex]-5n=9m-3n[/tex]

[tex]-2n=9m[/tex]

[tex]n=-4.5m[/tex]

Answer:

The upper quartile is 71.5

Step-by-step explanation:

on the attachment

Answer: 56

Step-by-step explanation: