Mathematics College


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer 1

Answer:

By creating some crops that resist certain insects

Step-by-step explanation:

Answer 2

Answer:

Aww man i wasn't the earliest

Step-by-step explanation:

By creating some crops that resist certain insects

Related Questions

Bob was thinking of two numbers. He said the larger of his numbers was 8 more than the smaller number. He chose to represent the smaller number with an x. Which of the following is an expression that can be used to represent the larger number in terms of x?

Answers

Answer:

x+8

Step-by-step explanation:

Solve the following inequality for w 8w+8>-10w-5

Answers

Answer:

Step-by-step explanation:

8w+8 > -10w-5

18w + 8 > -5

18w > -13

w > -13/18

Sierra has a recipe she wants to make. She has to use eggs and sticks of butter. The ratio for these ingredients is 12 to 4 to make 4 batches. What will the equivalent ratio be if she wants to make 2 batches?

Answers

2 batches is half as much as 4 batches...so cut all the ingredients in half. You would need 6 eggs and 2 sticks of butter (a 6 to 2 ratio)

a girl took nine test in different subjects and had average of 60%. if in her tenth test she obtained 85%, find her new average​

Answers

Answer:

62.5%

Step-by-step explanation:

average = sum of scores / number of scores

60% = [sum of 9 tests] / 9

[new average] = [sum of 10 tests] / 10

= ([sum of 9 tests] + 85%) / 10

= ((9 * 60%) + 85%) / 10

= 62.5%

Answer the question and explain your answer. I will be marking brainiest! If you have the correct answer and explain why it’s correct, I will probably pick YOU as brainiest! :)

Answers

Answer:

A = 200.96 sq ft

Step-by-step explanation:

formula for area of a circle:  A = π·r²

A = (3.14)·(8²)

A = 64·(3.14)

A = 200.96

Cary puts $500 into a savings account that earns 5.5% annually. The amount in her account can be modeled by C(t) = 500(1.055)t, where t is the time in years.

Write the expression best approximates the amount of money in her account using a weekly growth rate. (DO NOT ROUND ANY NUMBERS)

***Just need some clarification, it says there is annual growth rate but the question is asking that I change the function into weekly growth rate so...how do I do that?

Answers

Answer:

Answer: a) A(t)= $500(1.055)^t

b) Amount after 9 years A(9) = $809.55

Amount after 17 years A(17) = $1242.40

sorry if im wrong

Step-by-step explanation:

Help ASAP! I’m confused! Thanks!!

Answers

Answer:

Angles 2 and 4 are congruent

Grace and her friend are doing some back to school shopping , Grace buys 4 binders and notebooks for 26.50 totalHer friend spends a total of $21.00 on 3 binders and 6 notebooks

Answers

Answer:

What is the question asking to answer?

Step-by-step explanation:

Answer:

$19:50

Step-by-step explanation:

Write a system of equations to represent the problem. Let x represent the cost of a binder, and let y represent the cost of a notebook.

Grace buys 4 binders and 7 notebooks for $26.50 total, so the equation 4x+7y=26.50 represents how much Grace spends.

Grace's friend buys 3 binders and 6 notebooks for $21.00 total, so the equation 3x+6y=21 represents how much her friend spends.

You can use this system of equations to find how much money Grace and her friend spend on notebooks:

4x+7y=26.50

3x+6y=21

Next, find how much Grace and her friend spent on notebooks. Start by finding the cost of one notebook. Use elimination to solve for y. .

3(4x+7y)=3(26.50)  

–

12x+21y = 79.50

–

4(3x+6y)=

–

4(21)  

–

12x–24y =  

–

84

–

3y =  

–

4.50

y = 1.50

Each notebook costs $1.50. Grace and her friend buy a total of 13 notebooks, so multiply to find how much money they spend on notebooks.

13$1.50=$19.50

Grace and her friend spend $19.50 total on notebooks.

Four times the difference of a number cubed and six

Answers

Step-by-step explanation:

4(n^3 - 6)

hope this helps

Select the correct answer from each drop-down menu.
Describe the relationship between the area of a circle and its circumference.
The -blank-
is -blank-
times the -blank-
times the circunference.

Answers

Answer:

hey im not completely sure but i think its the RADIUS is 1/3 times the AREA time the circumference

Step-by-step explanation:

Mila and Ava play a number game. Mila gives Ava a number and she does three computations:

She subtracts 5 from that answer.
She multiplies the number by 2.
Then, she adds 8 to the answer.
What number should Mila give Ava so that the final answer is 92?

Answers

Answer:

Step-by-step explanation:

(x-5)2+8 = 92

2x-10+8 = 92

2x = 94

x = 47

Answer:

Step-by-step explanation:

2(n-5)+8=92

2n-10+8=92

2n-2=92

2n=94

n=47

Help please !!
The table below represents a linear function. What is the slope of the graph of this function? input X: -2, -1, 0, 1, 2. output Y: -3, -1, 1, 3, 5

Answers

The answer should be B) 1/2

Answer:

2

Step-by-step explanation:

Rise/ run

y/x

Once you graph the ordered pairs you will have

(-2,-3) (-1,-1) etc...

it will work out to be up two over one 2/1 which equals two

What is Steve's mean speed if he bikes 55.5 miles in 3.7 hours? Round your answer to two decimal places, if necessary.

Answers

Answer:

15m/s

Step-by-step explanation:

Given data

DIstance= 55.5 miles

time= 3.7 hours

Required

the speed

We know that

Speed= distance/time

Substitute

Speed= 55.5/3.7

Speed= 15 m/s

Hence the speed is 15m/s

Write 4% as a
fraction in lowest terms.

Answers

Answer:

1/25

Step-by-step explanation:

8. Read this question carefully. PLEASE NEED HELP NOWWW
At a dinner, the meal cost $32.00 and a sales tax of $2.40 was added to
the bill.

a. How much would the sales tax be on a $66.00 meal?
b. What is the tax rate for meals at this restaurant?


Answers

Answer:

a.70.95

b. 7.5

Step-by-step explanation

If you divide 2.40 by 32, you get the ratio of the tip to cost, which is 0.075, or 7.5 percent. Multiply 66 by 1.075, which includes both the cost and the tax.

Equivalent expression of d+0.38d

Answers

Answer:

0.38 x d + d

Step-by-step explanation:

the answer for ur question is

d+0.38d

1.38d

PLEASE HELP ASAP 30P!
Which of the following is an example of a difference of two squares?
O 16m3 - 1
O 2562 +4
O 10c2 – 169
O 49p2 - 9

Answers

Answer: D

Step-by-step explanation:

12 The length of each side of regular pentagon
ABCDE is represented by 3x + 1. Which
expression represents the perimeter of the
pentagon?
A. 3x + 5
B. 15x + 1
C. 18x + 6
D. 15x + 5

Answers

Answer:

the answer is number b 15x + 1

The dimensions of a rectangle are √50a^3b^2 and √200a^3. What is the students error?

Answers

Answer:

The student incorrectly simplified [tex]30ab\sqrt{2a}+20a\sqrt{2a}[/tex] .

Thus, option D is correct.

Step-by-step explanation:

The formula to determine the Perimeter of a rectangle of width w and length l is expressed as:

[tex]P = 2l + 2w[/tex]

In other words, the perimeter can be determined by multiplying the length and width by 2 and adding the result.

In our case, the dimensions of a rectangle are [tex]\sqrt{50a^3b^2}[/tex]  and  [tex]\sqrt{200a^3}\:\:[/tex].

Here is the student's solution:

[tex]2\sqrt{50a^3b^2}+2\sqrt{200a^3}=2\cdot 5ab\sqrt{2a}+2\cdot 10a\sqrt{2a}[/tex]

                                 [tex]=10ab\sqrt{2a}+20a\sqrt{2a}[/tex]

                                 [tex]=30ab\sqrt{2a}[/tex]          

The student made an error in calculating [tex]30ab\sqrt{2a}+20a\sqrt{2a}[/tex] , because [tex]30ab\sqrt{2a}+20a\sqrt{2a}[/tex] are not like terms.

Hence, [tex]30ab\sqrt{2a}+20a\sqrt{2a}[/tex] can not be simplified to [tex]30ab\sqrt{2a}[/tex]

Therefore, the student incorrectly simplified [tex]30ab\sqrt{2a}+20a\sqrt{2a}[/tex] .

Thus, option D is correct.

Here is the correct Solution:

[tex]2\sqrt{50a^3b^2}+2\sqrt{200a^3}=2\cdot 5ab\sqrt{2a}+2\cdot 10a\sqrt{2a}[/tex]

                                 [tex]=10ab\sqrt{2a}+20a\sqrt{2a}[/tex]

Answer:

D. The student incorrectly simplified 10ab sqrt2a+ 20a sqrt2a

Step-by-step explanation:

Just did it.

at a school there are 10 students taking only chemistry, 9 students taking only physics 5 students taking both, and 16 students not taking either. if a student is randomly selected from the other school, what is the probability that they are taking chemistry or physics?

Answers

Answer:

If there are 10 students taking only chemistry, 9 students taking only physics, and 5 students only taking both chemisty and 16 students are taking neither; I would add 10+9+5+16=40 (total students) and divide 10/40 (25% chemistry) 9/40 (22.5% physics) 5/40 (12.5% both) 16/40 (40% neither)

Step-by-step explanation:

1. Determine a single event with a single outcome.

2. Identify the total number of outcomes that can occur.

3. Divide the number of events by the number of possible outcomes.

Answer:

3/5

Step-by-step explanation:

The other letter to the left is X btw PLS HELP

Answers

Answer:

probably D

Step-by-step explanation:

answer: D

34+26=60
180-60=120

Which of the following is the equation for the line of symmetry in this figure?
Can someone help please!

Answers

Answer:

X=3

Step-by-step explanation:

3 is in the middle of the figure.

I hope this helps!

Select the correct answer.

Which expression is equivalent to sin^2x-sinx-2/sinx-2?

Answers

Answer:

A

Step-by-step explanation:

We are given:

[tex]\displaystyle \frac{\sin^2(x)-\sin(x)-2}{\sin(x)-2}[/tex]

To make it simpler and more clear, we can let u = sin(x). So:

[tex]\displaystyle \frac{u^2-u-2}{u-2}[/tex]

Now, it becomes obvious that we can factor, which produces:

[tex]\displaystyle =\frac{(u-2)(u+1)}{u-2}[/tex]

Cancel:

[tex]=u+1[/tex]

And substituting back:

[tex]=\sin(x)+1[/tex]

Hence, our answer is A.

Answer:

A

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLIEST

Segment AB has been dilated about point Q. What is the scale factor?​

Answers

The scale factor would be 1.25 because each segment is the same in this triangle

Identify the solution to the system of equations
4x-y=7
-12x+3y=-21

Answers

Answer:

Step-by-step explanation:

The equations are not independent. They represent the same graph.

There are an infinite number of solutions.

2(4)+ 4(1)= 12
Solution

Answers

2*4+4*1=12
8+4=12

2times 4 is 8 + 4 times 1 is 4 which if you add those up you will get 12
The answer is 12=12 I think

in which graph is y a linear function of x will mark brainest ty so much​

Answers

a? I'm unsure abt this one

PLEASE HELP! GIVING PONTS!

Answers

the least common denominator is 4 I believe
I think the answer is 4

Rebecca is making halloween costumes. She pays $6.72 for 3 yards of fabric. What is the unit cost of the fabric?

Answers

Answer:

$2.24

Step-by-step explanation:

To find the unit cost, you divide 6.72 by 3, which is 2.24.

Graph the line with the equation y = 1/5 x - 5 , ILL MARK BRAINLIST

Answers

Answer:

The line will cross point (0,-5) and (25,0)

Step-by-step explanation:

Proved graph in the picture using desmos graphing software

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