Subtract:
\(({2a}^{2} + 5a + 3) - ( {a}^{2} - 3a - 4)\)
​

Answer:

A

C

is the answer

I think soo

Options B, D and E are correct.

A relative value that indicated hundredth part of any quantity is called percentage.

Random surveys of 60 students are taken. The table given shows the results.

From the given table, we can say 17 mean number of students prefer taco option at lunch.

Calculating the percentage,

          \((\frac{17}{60} )\) x 100 %= 28.33 %

So, we can say, 28.33 % students prefer taco option at lunch

Calculating the percentage,

          \(\frac{7}{15}\)   x 100 %= 46.67 %

So, according to option A, 46.67 % students prefer taco option at lunch, which does not matches.  

So, option A is not correct.

From the given table, we can say 16 mean number of students prefer chicken option at lunch.

Calculating the percentage,

             \((\frac{16}{60})\) x 100 % = 26.67 %

So, we can say,26.66 % students prefer chicken option at lunch.

Calculating the percentage,

            \((\frac{4}{15} )\) x 100 % = 26.67 %

So, according to option B, 26.67 % students prefer chicken option at lunch.

Clearly option B matches and hence it is correct.

From the given table, we can say 6 mean number of students prefer vegetarian option at lunch.

Calculating the percentage,

                   \((\frac{6}{60} )\) x 100 = 10 %

So, we can say,10 % students prefer vegetarian option at lunch.

Calculating the percentage,

                       \((\frac{1}{6} )\) x 100 % = 16.67 %

So, according to option C, 16.67 % students prefer vegetarian option at lunch, which does not matches.  

So, option C is not correct.

From the given table, we can say 21 mean number of students prefer pizza option at lunch.

Calculating the percentage,

                       \((\frac{21}{60} )\) x 100 % = 35 %

This clearly matches with the option.

So, option D is correct.

From the given table, we can say 16 mean number of students prefer chicken option at lunch.

This clearly matches with the option and hence option E is correct.

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Answer:

8

Step-by-step explanation:

area = bh/2

32.4 yd² = 8.1 yd × s / 2

s = 8 yd

Answer:

Step-by-step explanation:

Answer:

bt and the total displacement per adding the total time

We know that each large tree costs $4.50, and each small tree costs $2.25. If you buy 4 large trees, that means you will spend 4 * $4.50 = $<<4*4.5=18>>18 on large trees.

If you can spend a total of $50, then you have $50 - $18 = $<<50-18=32>>32 to spend on small trees.

The total cost of the small trees will be s * $2.25, where s is the number of small trees you buy.

To find the maximum number of small trees you can buy, we can set this expression equal to $32 and solve for s:

s * $2.25 = $32

s = $32 / $2.25

s = 14.22

Since you can't buy a fraction of a tree, the maximum number of small trees you can buy is 14.

Answer:

If each large tree costs 4.50 and you need to buy 4, then 4 x 4.50 = $18.00 leaving you with $32.00. With these 32 dollars left, you can now buy 14 small trees, still being left with a remainder of 0.50$.

Step-by-step explanation:

Answer:

the distance from church to school is 1 . 25km and the distance from school to home is 1 . 52km.how much is it from school to home than from church to school in metres

Answer:

angle b is 45° as it is alternative angle of d so equal to d.

Step-by-step explanation:

now....

180 = 90+(90-45)+b

90+45+45

90+90

=180

Answer:

3 1/3

Step-by-step explanation:

2/3 x 5 = 10/3 = 3 1/3

Answer:

\(3\frac{1}{3}\) litres

Step-by-step explanation:

Each container has 2/3 of drink in it, so to find the amount of drink in all 5, we multiply by 2/3 by 5:

\(5*\frac{2}{3} =\frac{10}{3} =3\frac{1}{3}\)

Answer: 28.6%

Step-by-step explanation:

To calculate the percent error:

1) Subtract the estimated amount by the actual amount

45-35=10

2) Divide the answer by the actual amount

10/35=0.2857

3) Multiply the answer by 100 to get the percent error

0.2857×100=28.57

Rounded that equals 28.6%

Answer: hope this helps ♡

The percent error for the park sign's estimate is 29%.

Step-by-step explanation:

45 - 35 = 10

(10 out of 35 because it's the actual amount)

10 of 35 in percentage:

(10 ÷ 35) × 100 =

0.28571..... × 100 =

28.5714.....%  ≈  29%

ihopemyasnweriscorrect :)

Answer:

65

Step-by-step explanation:

845 beads divided by 13 beads is 65. You can make 65 bracelets.

Answer:

Approximately 84.35

Step-by-step explanation:

Since we know that base^2+height^2=hypetenuse*2, then hypetenues^2-base^2=height^2

Answer:

The answer is 84.35

Answer:

divide both sides of the equation by 0.15

I hope I help you in this ans and tq.

divide both sides of the equation by 0.15

Answer:

$ 145.00

Hope this helps!

Answer:

D

Step-by-step explanation:

Lets go through each answer choice and check if it is correct.

A: False. 50% of 70 is not 31.

B: False. 17% of 70 is not 17.

C: False. The fraction 8/70 does not simplify to 2/25.

D: Correct. The fraction 14/70 simplifies to 2/10.

Answer:

The answer is D, On average, 2 out of 10 adults visited the museum most frequently.

Step-by-step explanation:

You can find this out by finding out how many adults there was total. You would do 31+14+17+8=70 and the you can see that 14 went to the museum so it would be 14/70. This fraction simplifies to 2/10.

Answer:This is the only thing that i can tell u sorry but i hope this helps

Step-by-step explanation:

Subtract starting value minus final value

Divide that amount by the absolute value of the starting value

Multiply by 100 to get percent decrease

If the percentage is negative, it means there was an increase and not an decrease.

Percentage Decrease Formula

You can use the percentage decrease formula for any percent decrease calculation:

Percentage Decrease=Starting Value−Final Value|Starting Value|×100

Step-by-step explanation:

Answer:

y-intercept : 8

slope: -1/2

equation:   \(y = -\dfrac{1}{2}x + 8\)

Step-by-step explanation:

The y-intercept is where the line crosses the y axis and you can see it crosses at y = 8 (when x =0)

Slope of the line can be found by the formula (y2-y1) / (x2-x1)  where 9x1, y1) and (x2, y2) are two points on the line

Let's take the points (0, 8) and (10, 3) the two extreme points on the line

Slope = (3 - 8) / (10 - 0) = -5 / 10 = - 1/2

Equation of a line in slope intercept form is

y = mx + c

where m is the slope  

b is the y intercept

The equation of the line is therefore

\(y = -\dfrac{1}{2}x + 8\)

Answer:

Y-intercept = 8

Slope = -1/2t

Equation = y =-1/2x+8

Step-by-step explanation:

When x = 0, y = y-intercept.

Therefore, the y-intercept is 8.

We can find the slope using the formula y2-y1 / x2-x1 = m.

Let's use the points (0,8) and (4,6)

6-8 / 4-0 = m;

m = - 1/2.

Given that the generic formula is y=mx+b, and m-slop and b=y-intercept, we have:

y = -1/2x+8.

Answer:hi

Step-by-step explanation:

Answer:

ok answer is $76.5

Step-by-step explanation:

\(17\)×\(4.50=$76.5\)

\(93.5\)÷\(5.5=17\)

All done hope the answer Helps You out

Answer:

\(y=-\frac{3}{2} x+3\)

Step-by-step explanation:

Answer:

L: y= -4x + 17

Step-by-step explanation:

For a line L to pass through two points, we use the slope formula to calculate the slope, m, where

m = (y2-y1) / (x2-x1)

= (9-1) / (2-4)

= 8 / -2

= -4

Next we use the point slope form to find the line equation:

L: (y-y1) = m (x-x1)

substitute (x1,y1) = (4,1)

L: y-1 = -4 (x-4)

Simplify:

L: y = -4x + 16 + 1

L: y= -4x + 17

Check: substitute (4,1)

y = -4(4)+17 = 1  checks

substitute (2,9)

y = -4(2)+17 = 9 checks

so

L: y= -4x + 17

Answer:

y is equal to 5 and x is equal to 11

Answer: 2/3

Step-by-step explanation: When the teacher pulls a B you can see that the probability is 2 G's to 1 B so you have a 2 in 3 chance of pulling a G

Answer:

45

Step-by-step explanation:

Answer:

It would be 7701

Step-by-step explanation: hope this helps!

Answer:

-4

Step-by-step explanation:

First, add 12 on both sides and then you must end up with - 4