7th GRADE WORK HELPPP!!! ILL BRAINLIST!!!

Answer: 804.25 cm sq.

Step-by-step explanation:

A = 4 π r^2

A = 4 π 8^2

A = 4 π 64

A = 804.25 cm sq.

Answer:

[tex]\frac{7}{2}[/tex]

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 ), then

the product of the roots = [tex]\frac{c}{a}[/tex]

2x² + 4x + 7 = 0 ← is in standard form

with a = 2, c = 7 , thus

product of roots = [tex]\frac{7}{2}[/tex]

Answer:

x=[tex]\frac{-2±\sqrt[i]{10} }{2}[/tex]

Step-by-step explanation:

pls ignore the "A" after -2! i hope this helps <3

Answer:

2.6667 hours

Step-by-step explanation:

Given that:

Distance between car and bus = 280 miles apart

What le moving towards each other ;

Speed of car = 55 mph

Speed of bus = 50 mph

Time it will take them to meet;

Time = distance / speed

Hence :

Total distance to be covered = 280 miles

Total speed = (55mph + 50 mph) = 105 mph

Hence ,

Time = 280 miles / 105 mph

Time = 2.667 hours

2 hours, (0.667 * 60 = 40.02

2 hours, 40 minutes

Answer:

2.6667

Step-by-step explanation:

Answer:

480,000

Step-by-step explanation:

1,000,000 - 40,000 = 960,000

960,000 divided by 2 is 480,000

Answer:the answer is

Step-by-step explanation:

Answer:

Step-by-step explanation:

It is not really a question we can help you with you have to draw shapes for each 3 letters

Answer:

110 pounds of peaches should be ordered

Step-by-step explanation:

Here, we want to calculate the number of pounds of peaches to order.

Let the number of peaches to ordered be x peaches

Now, since 9% is expected to be bad, then the percentage expected to be good will be 91%

Thus;

91% of x = 100

91/100 * x = 100

91x = 100 * 100

x = 10000/91

x = 109.89

Since we cannot have fractional peaches, then x must be 110

Answer:

Please comment the image, it won't load.

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

1. The parentheses are eliminated. The distributive property lets you do that.

2. 2x is subtracted from both sides. The subtraction property of equality lets you do that.

3. 28 is added to both sides. The addition property of equality lets you do that.

4. Both sides are divided by 2. The division property of equality lets you do that.

Answer:q=9

Step-by-step explanation:

-2(q - 9)+ 5=5

             -5   -5

-2q + 18  = 0

-2q = -18

/-2      /-2

q = 9

Answer:

2.5 10 to the power six i guess i didnt do this for a point so plz if somebody is going to dlt this answer then please dont do this

Step-by-step explanation:

Answer:

25 x 10 = 250 x 250 x 250 x 250 x 250 x 250= 25000000

thats your answer

Step-by-step explanation:

Answer:

∠BAC and ∠CAD are congruent, and m∠DAB is the sum of m∠BAC and m∠CAD.

Step-by-step explanation:

Answer:

∠BAC and ∠CAD are congruent, and m∠DAB is the sum of m∠BAC and m∠CAD.

Step-by-step explanation:

Exact answer for edmentum

Answer:

9(-5n + 40) , c = 2 and n = 8

9[(-5)(8) + 40] - substitute n

9(-40 + 40) - solve parenthesis

9(0) - solve parenthesis again

9 - answer

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Answer:

Complementary!!!

Step-by-step explanation:

Step-by-step explanation:

your answer is C 5. also to find the answer by yourself get a ruler then measure the big one then the little one in mm. Then you can check how much larger they are then each other. In this case it is dilated to be twice the size. you call tell in this case by looking at the measurements it already gives you as you can see they both have the same labeled side, 3 and 6. 3 times 2 = 6 therefore it's twice the size

Answer:The awnser Is letter C Number 55

Step-by-step explanation:

Answer:

1 solution.

Step-by-step explanation:

Step 1: Write equation

-9s + 9 = -8s

Step 2: Solve for s

Step 3: Check

Plug in s to verify it's a solution.

-9(9) + 9 = -8(9)

-81 + 9 = -72

-72 = -72

Answer:

one solution s=9

Step-by-step explanation:

-9s + 9 =-8s, add 9s on both sides

+9s        +9s

-------------------

9=s

Answer: 1:600

Step-by-step explanation:

From the question, we are informed that 12 m object is represented in a picture as being 2 cm.

To find the scale used, we needed to convert 12m to cm. Since 100cm = 1m, then 12m = 12 × 100 = 1200cm.

Therefore, a 1200cm object is represented in a picture as being 2 cm. The scale will be:

= 2/1200

= 1/600

= 1:600

This means that 1 centimeter in the picture represent 600 centimeter or 6 meters.

The length of the actual hotdog comes to be 15cms.

A scale factor is a ratio between corresponding measurements of an object and a representation of that object.

From the diagram

6 units = 10cm

So, 1 unit =10/6 cm

The length of the hotdog shown in the graph = 9 units

So, 9 units = 9*(10/6)

9 units = 15cms

So, the actual length of the hotdog =15cms

Thus, the length of the actual hotdog comes to be 15cms.

to get more about scale factors visit:

https://brainly.com/question/1903243

Answer:

8.192x10^-5     or   32/5^8

Step-by-step explanation:

Answer:

the answer is 32/390625

Step-by-step explanation:

the decimal form is 8.192*10^-5

Answer:

22

Step-by-step explanation:

21.994

5+ round up

-2^2 < 3

and

-1 > 0

Both are false

Answer: |-9| is not equal to |9| is not true. This is because |-9| is 9 and so is |9|.

Answer:

0.18

Step-by-step explanation: Converting the fraction 2/11 into a decimal is very easy. To get 2/11 converted to decimal, you simply divide 2 by 11.

Answer:

About 0.18

Step-by-step explanation:

Divide 2 by 11

Answer: .6

Step-by-step explanation:

when you add up all of the probabilities you want them to equal 1, first you need to find the missing probability (.2) then add the probability of 1 and 3 the odd numbers to get .6

[tex]e^{5x}=k\implies\ln(e^{5x})=\ln(k)\implies\boxed{x=\ln(k)/5}[/tex]

Hope this helps.

Complete Question

Country financials, a financial services company, uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time. In February 2012, a sample of 1000 adults showed 410 indicating that their financial security was more that fair. In Feb 2010, a sample of 900 adults showed 315 indicating that their financial security was more than fair.

a

State the hypotheses that can be used to test for a significant difference between the population proportions for the two years.

b

What is the sample proportion indicating that their  financial security was more that fair in 2012?In 2010?

c

Conduct the hypothesis test and compute the p-value.At a .05 level of significance what is your conclusion?

Answer:

a

The null hypothesis is  [tex]H_o : p_1 = p_2[/tex]

The  alternative hypothesis is   [tex]H_a : p_1 \ne p_2[/tex]

b

in 2012  [tex]\r p_1 =0.41[/tex]

in 2010  [tex]\r p_2 =0.35[/tex]  

c

The  p-value  is  [tex]p-value = 0.0072 [/tex]

The conclusion is

There is  sufficient evidence to conclude that the proportion of those indicating that  financial security is more fair in Feb 2010 is different from the proportion of  those indicating that financial security is more fair in Feb 2012.

Step-by-step explanation:

From the question we are told that

   The  sample size in 2012 is  [tex]n_1 = 1000[/tex]

    The  number that indicated that their finance was more than fail is  k  =  410  

     The  sample  size in 2010  is  [tex]n_2 = 900[/tex]

   The  number that indicated that their finance was more than fail is  u  =  315

     The  level of significance is  [tex] \alpha  =  0.05[/ex]

The null hypothesis is  [tex]H_o : p_1 = p_2[/tex]

The  alternative hypothesis is   [tex]H_a : p_1 \ne p_2[/tex]

Generally the sample proportion for  2012 is mathematically represented as

     [tex]\r p_1 = \frac{k}{n_1}[/tex]

=>   [tex]\r p_1 = \frac{410}{1000}[/tex]

=>   [tex]\r p_1 =0.41[/tex]

Generally the sample proportion for  2010 is mathematically represented as

      [tex]\r p_2 = \frac{u}{n_2}[/tex]

=>   [tex]\r p_2 = \frac{315}{900}[/tex]

=>   [tex]\r p_2 =0.35[/tex]    

Generally the pooled sample proportion is mathematically represented as

      [tex]\r p = \frac{k + u }{n_1 + n_2}[/tex]

=>     [tex]\r p =  \frac{410 + 315 }{1000+ 900}[/tex]

=>      [tex]\r p = 0.3816 [/tex]

Generally the test statistics is mathematically represented as

     [tex]z = \frac{( \r p_1 - \r p_2 ) - 0}{\sqrt{\r p (1 - \r p ) ( \frac{1}{n_1} +\frac{1}{n_2} )} }[/tex]

 [tex]z = \frac{( 0.41 -0.35 ) - 0}{\sqrt{0.3816 (1 - 0.3816 ) ( \frac{1}{1000} +\frac{1}{900} )} }[/tex]    

 [tex]z = \frac{( 0.41 -0.35 ) - 0}{\sqrt{0.3816 (1 - 0.3816 ) ( \frac{1}{1000} +\frac{1}{900} )} }[/tex]

   [tex]z  =  2.688[/tex]

Generally the p- value  is mathematically represented as  

      [tex]p-value = 2 P(Z >2.688  )[/tex]

From the z -table  

      [tex]P(Z > 2.688) = 0.0036 [/tex]

So  

      [tex]p-value = 2 *0.0036 [/tex]

        [tex]p-value = 0.0072 [/tex]

So from the p-value  obtained we see that p-value  <  [tex]\alpha[/tex] so we reject the null hypothesis

Thus there is  sufficient evidence to conclude that the proportion of financial security is more fair in Feb 2010 is different from the proportion of financial security is more fair in Feb 2012.

Answer:

It's C

Step-by-step explanation:

took the test

Answer:c

Step-by-step explanation:

Answer:

- 12

Step-by-step explanation:

There is a common difference between consecutive terms in the sequence.

9 - 16 = 2 - 9 = - 5 - 2 = - 7

Thus to find the next term subtract 7 from the previous term, that is

- 5 - 7 = - 12