please help me with my math look at picture

Answer:

3.84, and lower. These are correct

Step-by-step explanation:

I did the test but I am not sure which is the answer for the first one. It’s is NOT 2.6

Answer:first blank is 2.2

Step-by-step explanation:

you find the mean of the data which is 8. Then you subtract every data point from 8, add them up and find the mean of the new numbers,

The area of the triangle is:

                                         [tex]\Large\displaystyle\text{$\begin{aligned}A\triangle &= \dfrac{21+7\sqrt{15}}{2}\\ \\A\triangle &\approx 24.055\\ \\\end{aligned}$}[/tex]

You can easily find the area of a triangle using the formula:

                                         [tex]\Large\displaystyle\text{$\begin{aligned}A\triangle = \dfrac{bh}{2}\end{aligned}$}[/tex]

Where h is the height of the triangle, and b the base.

Looking at the figure we can see that h = 7, but we need to discover the base, we know that the base is:

                                               [tex]\Large\displaystyle\text{$\begin{aligned}b = 3 + x\end{aligned}$}[/tex]

Where:

                                            [tex]\Large\displaystyle\text{$\begin{aligned}8^2 &= x^2 + 7^2\\ \\x^2 &= 8^2 - 7^2 \\ \\x^2 &= 64 - 49\\ \\x^2 &= 15\\ \\x &= \sqrt{15}\end{aligned}$}[/tex]

Therefore, our base length is:

                                              [tex]\Large\displaystyle\text{$\begin{aligned}b &= 3 + x\\ \\b &= 3 + \sqrt{15}\\ \\\end{aligned}$}[/tex]

Then we can just apply the formula for the area:

                                        [tex]\Large\displaystyle\text{$\begin{aligned}A\triangle &= \dfrac{(3+\sqrt{15})\cdot 7}{2}\\ \\A\triangle &= \dfrac{21+7\sqrt{15}}{2}\\ \\A\triangle &\approx 24.055\\ \\\end{aligned}$}[/tex]

I hope you liked it

Any doubt? Write it in the comments and I'll help you

Answer:

43/36 or 1 7/36

Step-by-step explanation:

Answer: D

Step-by-step explanation:

Answer:

1 in 3 chance.

Step-by-step explanation:

the numbers 3, 6, 9, and 12 can all be divided by 3 and that's 4 out of the 12 numbers, and that's 1/3 simplified.

Answer:

82

Step-by-step explanation:

... 73, 76, 79, 82, 85, 88, 91 ...

3x-2y+4z-x+5y+3x-2y+4z-x+z

First, reorder(I put the like terms in parenthesis to help you see the work better).

(3x+3x-x-x)+(5y-2y-2y)+(4z+4z+z)

Now, we add/subtract like terms.

(6x-2x)+(5y-4y)+(8z+z)

Lastly, we combine.

4x+y+9z

---

hope it helps

Answer:

54/120

Step-by-step explanation:

Ratio to 54 seconds to 2 minutes is 9 : 20

Find:

Ratio to 54 seconds to 2 minutes

Computation:

We know that,

1 minutes = 60 second

So,

2 minutes = 120 second

Ratio to 54 seconds to 2 minutes = 54 / 120

Ratio to 54 seconds to 2 minutes = 27 / 60

Ratio to 54 seconds to 2 minutes = 9 : 20

Find out more information about 'Ratio'.

https://brainly.com/question/1504221?referrer=searchResults

Answer:

The area of the rectangle in terms of x :

S = ( 5x +2 )(3x-4) = 15x²−14x−8

=> x1=−2/5, x2= 4/3

Step-by-step explanation:

Answer:

Submarine submerges at the rate of =5m/min

descend starts from = 20m

submarine have to reach = -250m

Distance between above sea level to below sea level = 250 + 20 = 270m

time taken to reach 270 m = 270/5= 54 minutes

Step-by-step explanation:

Hope this helps:)

Answer:

These are confusing Beth , b/c you have to remember that they will add to 100%

Step-by-step explanation:

so

green = 3*  yellow

100% = green + yellow + 35% + 25%

100% = 3* yellow + yellow +60%

40% = 4* yellow

10% = yellow

30% = green

there are 14 purples in the bag , which is 35% of total

14/.35 = 40

there are a total of 40 pins

so

4    are yellow  (10% of 40  or 40* 0.1)

12 are green    (30% of 40  or 40*0.3)

14  are purple  (35% of 40 or 40*0.35)

10  are grey  (25% of 40  or 40*0.25 )

see?  : |

Answer:

x ≥ 10

Step-by-step explanation:

So put a filled-in dot on 10 and an arrow going to the right

Answer: x ≥ 10

Step-by-step explanation: i took the test

Answer:

CD overbar is congruent to XY overbar

Answer:

9y

Step-by-step explanation:

9 times y = 9y

product means multiply

Answer:

It is better to buy 20 g of flour 3 for 3.50

Step-by-step explanation:

It is given that 20g of 3 for 3.50

It means 3 packets of 20 g is 3*20 =60

So, 60g  is for 3.50

So, 1 g =[tex]\frac{3.5}{60}[/tex]=0.05833 per gram.

Now, let's find unit rate for 40 g of 2 for 9.

2 packets of 40 gram = 2* 40 =80 grams

So, 80 grams costs 9

So, 1 gram =[tex]\frac{9}{80}[/tex] =0.1125

So, it is better to buy 20 g of flour 3 for 3.50

Answer: the answer is 4.08

Step-by-step explanation:

Answer:

4.08

Step-by-step explanation:

2.29+2.59-0.50-0.30 is equal to 4.08

it's just addition and subtraction haha

Answer:

The unit rate will be amount ÷ price

Thus,

3÷4.50

⇒ 0.66..........

And this means 0.66 will be the range.

Answer:

option C is correct answer of this question

x is grater than or equal to 55.25

hope it helps

Answer:

C

Step-by-step explanation:

8x≥442

x≥55.25

greater than or equal

Answer:

An instructor at an army base wants to know if a new program that teaches gun safety is effective is described below in brief details.

Step-by-step explanation:

Although of your shooting practice, the handgun safety program illustrates the center fundamentals of handgun protection so that you can tour the range with courage and with safety in the brain. Study how to accurately control, transport, and deposit your handgun, as well as how to keep children secure around handguns.

Answer:

2.954545454

Step-by-step explanation:

65/22 = 65 divided by 22. That is how many times 22 can go into 65

A decimal number has a decimal point in it. That is a whole number and some fraction that could be in tenths or otherwise.

65 is the numerator,

22 is the denominator

Using a calculator

65/22 = 2.9545454

I got you bro!

Answer:

{x,y} = {4-1}

You might be wondering how I got this, well here are the steps:

System of Linear Equations entered :

  [1]    2x + y = 7

  [2]    x - 2y = 6

Graphic Representation of the Equations :

   y + 2x = 7        -2y + x = 6  

Solve by Substitution :

// Solve equation [2] for the variable  x  

 [2]    x = 2y + 6

// Plug this in for variable  x  in equation [1]

  [1]    2•(2y+6) + y = 7

  [1]    5y = -5

// Solve equation [1] for the variable  y  

  [1]    5y = - 5

  [1]    y = - 1

// By now we know this much :

   x = 2y+6

   y = -1

// Use the  y  value to solve for  x  

   x = 2(-1)+6 = 4

Solution :

{x,y} = {4,-1}

I hope this has helped you and have a wonderful day!

Answer:

Bill should use 4.5 pounds of the candy costing 45 cents and 2.5 pounds of the candy costing 65 cents.

Step-by-step explanation:

With the information provided, you can say that the sum of the pounds of each type of candy is equal to 7, which can be expressed as:

x+y=7

Also, the statement indicates the 7 pound box costs $3.65 and you can say that the sum of the results of multiplying the price of each candy for the number of pounds is equal to $3.65, which is:

0.45x+0.65y=3.65

You have the following equations:

x+y=7 (1)

0.45x+0.65y=3.65 (2)

Now, you have to solve for x in (1):

x=7-y (3)

Then, you have to replace (3) in (2):

0.45(7-y)+0.65y=3.65

3.15-0.45y+0.65y=3.65

0.20y=0.50

y=0.50/0.20

y=2.5

Finally, you can replace the value of y in (3) to find x:

x=7-y

x=7-2.5

x=4.5

According to this, the answer is that Bill should use 4.5 pounds of the candy costing 45 cents and 2.5 pounds of the candy costing 65 cents.

Answer:

sorry i did my math wrong its...I think its 84 meters

2/x+4=3^x+1It's too short. Write at least 20 characters to explain it well.

Answer:

C ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answer:

The 4th choice which is y+1=2(x-3)

Answer:fhhxijcubv

Step-by-step explanation:

Cvhgghjbghv