PLEASE HELP WITH 7TH GRADEE MATH!!!!

Answer:

The answer is A - a. -6a^2/b  b. 5y^3

Answer:

60 days, Friday

Step-by-step explanation:

This problem is solved using concept of LCM.

LCM is the least number which is the common multiple of given set of different number.

To find the LCM  we method of prime factors, the steps are given below

________________________________________________

Given

frequency of visiting swimming pool by Shwetha = once in 12 days

factors of 12 = 2 * 2 * 3

frequency of visiting swimming pool by Vinnie = once in 4 days

factors of 2 = 2 * 2

frequency of visiting swimming pool by Olga = once in 10 days

factors of 10 = 2 * 5

minimum no of days after which they will be visiting together will be least common multiple of number of days after which they visit swimming pool individually.

Selecting the prime numbers with their highest occurrence

we have 2, 2, 3 ,5

multiplying them together we have

2 * 2 * 3* 5 = 60

therefore 60 is the LCM of 12, 4, 10

it means that Shwetha, Vinnie and Olga will visit swimming pool together once in 60 days

It is given that they visited on Monday  and now they will visit after 60 days again.

since in one week there are seven days, every eighth day will be monday

so we divide 60 days by 7 to see how many cycles of monday has passed.

60/7 = 8  4/7

It suggest that 8 weeks has passed and they will meet on 4 days after Monday  which will be Friday.

Thus they will meet meet at the swimming pool again in 60 days.

It will be Friday.

Answer:

60 days, friday

Step-by-step explanation:

Answer:

(x+9) (x+9)

Step-by-step explanation:

hope this helps ;/

Answer:

(x+9)(x+9)

Step-by-step explanation:

Answer

Inequality=100x+275≥775       Answer=5 or more

Step-by-step explanation:

Answer:

[tex]144\pi[/tex]

Step-by-step explanation:

Circumference = [tex]\pi d[/tex]

Diameter = [tex]2r[/tex]

Area of a circle = [tex]\pi r^2[/tex]

From our first equation, we can find our value for our diameter:

We do this by dividing [tex]24 \pi[/tex] by [tex]\pi[/tex] to get 24.

[tex]c=\pi d[/tex]

[tex]d=\frac{c}{\pi } = \frac{24\pi }{\pi } =24[/tex]

Using our second equation, we can find out the value for our radius:

[tex]d=2r[/tex]

[tex]r=\frac{d}{2} =\frac{24}{2} =12[/tex]

Now we have a value for our radius, we can use our third equation to find out our area:

[tex]A=\pi 12 ^2 = 144 \pi[/tex]

Given that:

To Find:

We know that:

Where,

Finding the radius of the circle:

Circumference of a circle = 24π

⟶ 2πR = 24π

⟶ 2πR = 2π × 12

Cancelling 2π.

⟶ R = 12

∴ Radius of the circle = 12 ft.

Finding the area of the circle:

⟶ Area = πR²

⟶ Area = π(12)²

⟶ Area = π × 12 × 12

⟶ Area = π × 144

⟶ Area = 144π

Hence,

Step-by-step explanation:

I think the exponential function is 4,-8

Answer:

f(x) = 1/4

Step-by-step explanation:

I used google, and I wish there were some answer choices!! If there are, let me know!!

The volume is approximately 33.51 [tex]cm^3[/tex], option B.

The question asks us to determine the closest volume to a golf ball with a diameter of approximately 4 centimeters. To find the volume of a sphere (which is the shape of a golf ball), we use the formula:

V = (4/3)π[tex]r^3[/tex],

where r is the radius of the sphere. Since the diameter of the golf ball is given as 4 cm, the radius would be half of that, which is 2 cm. Plugging in the radius into the formula, we have:

[tex]V = (4/3)\pi(2 cm)^3 = (4/3)\pi(8 cm^3) = (32/3)\pi cm^3,[/tex]

Now, we calculate the value using the approximation π = 3.14:

V = (32/3) × 3.14 [tex]cm^3[/tex] = 33.51 [tex]cm^3[/tex] (approximately).

Therefore, the volume that is closest to the actual volume of the golf ball is 33.51 [tex]cm^3[/tex], option B.

Q=rational number=1/6

2/3+q=1/2=1/6

Answer: 96 pints of the first fruit drink (60% pure fruit juice) and 64 pints of the second fruit drink (85% pure fruit juice).

Step-by-step explanation:

This question is a system of equations. First, we will define our variables:

Let x= number of pints of the first fruit drink (60% pure fruit juice), and then y = the number of pints of the second fruit drink(85% pure fruit juice).

We know that there are 160 total pints of the mixture. Therefore,

x + y = 160 .......... equation i

We are also aware that 70% of those 160 pints will be pure fruit juice, and they will come from either x or y.

For x pints of the first juice, there is

0.6x of pure fruit juice and for y pints of first juice, there is 0.85y of pure fruit juice. Therefore, we will have:

0.6x + 0.85y = 160 × 0.7

0.6x + 0.85y = 112

Multiply through by 100 to remove decimal. This will be:

60x + 85y = 11200 ........... equation ii

Combine both equations

x + y = 160 .......... i

60x + 85y = 11200 ........ ii

Multiply equation i by 60

Multiply equation ii by 1

60x + 60y = 9600 ........ iii

60x + 85y = 11200 ......... iv

Subtract iv from iii

-25y = -1600

y = 1600/25

y = 64

Since x + y = 160

x = 160 - 64

x = 96

Therefore , we will need 96 pints of the first fruit drink (60% pure fruit juice) and 64 pints of the second fruit drink (85% pure fruit juice).

Answer:

pooooooo

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

Answer: A

Explanation: x is your independent variable and is time, so it is unlikely to have negative amounts of time.

The time will be 2.25 seconds. Then the correct option is D.

A statement, principle, or policy that creates the link between two variables is known as a function.

The function is given below.

h(x) = – 16x² + 100

Where x is the time in seconds and h(x) is the height at x.

Let the height is y feet.

Then the value of y will be

y = 84 – 65

y = 19 feet

Then the time will be

   19 = – 16x² + 100

16x² = 100 – 19

16x² = 81  

  4x = 9    

    x = 2.25 seconds

Then the correct option is D.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ2

Answer:

Option B 15/16

Step-by-step explanation:

calculate the volume of the cone and the volume of the cylinder and then put them in a fraction with the cone over the cylinder, afterwards put that fraction in a calculator and see what you get. once you get the answer input each one of the options into the calculator until one of the fractions gives you the same product as the cone/cylinder fraction.

please mark brainliest :)

Answer:

[tex]t \approx 4.501\,s[/tex]

Step-by-step explanation:

The second-grade equation must be rearragend into its standard form:

[tex]-16\cdot t^{2} + 70\cdot t + 9 = 0[/tex]

Roots can be found with the help of the General Equation for Second-Order Polynomial:

[tex]t = \frac{-70\pm \sqrt{70^{2}-4\cdot (-16)\cdot (9)}}{2\cdot (-16)}[/tex]

[tex]t = 2.188 \pm 2.313[/tex]

[tex]t_{1} \approx 4.501\,s[/tex]

[tex]t_{2} \approx -0.125\,s[/tex]

Only the first root offers a reasonable solution.

[tex]t \approx 4.501\,s[/tex]

Answer:

What am I supposed to help you with?

Step-by-step explanation:

Answer:

I think the answer is B.

Answer:

b.) [tex]50,48,14[/tex]

Step-by-step explanation:

To find if a set of lengths makes a right triangle, use the Pythagorean theorem:

[tex]a^2+b^2=c^2[/tex]

If a and b squared equal c squared, then the set makes a right triangle. C (the hypotenuse) is the largest number of the set because the hypotenuse is always the largest side in a right triangle.

Use the options:

a.) insert values:

[tex]8^2+14^2=17^2\\64+196=289\\260\neq 289[/tex]

260 does not equal 289, so a is wrong.

b.) insert values:

[tex]14^2+48^2=50^2\\196+2304=2500\\2500=2500[/tex]

2,500 equals 2,500, so b is correct.

Finito.

Answer:

Step-by-step explanation:

hello :

x²+6x + y²– 12y = 36

completed to suqard :(x²+6x) + (y²– 12y) = 36 means :

(x²+6x+9)-9 + (y²– 12y+36)-36 = 36

(x+3)²+(y-6)² = 9².... standard form when the radius is : 9

10x−3+3≥2+3

10x≥5

(10x10)/2≥(5/10)

x≥1/2

Answer:

y=8x-32.5

Step-by-step explanation:

8 dollars an hours = slope

-32.5 owed = y-intercept

Answers)

27=6

30=82

33=24

Answer:

area of a sector = 14.13 yards²

Step-by-step explanation:

XYZ is a sector of a circle. The radius YZ is 6 inches .The angle of the sector is given as 45°. The area of the sector can be solved as follows.

area of a sector = ∅/360 × πr²

where

r = radius

∅ = center angle

r = 6 inches

∅ = 45°

area of a sector = 45/360 × 3.14 × 6²

area of a sector = 45/360 × 3.14 × 36

area of a sector = 45/360 × 113.04

area of sector = 1/8 × 113.04

area of a sector = 14.13 yards²

Answer:

14.13

Step-by-step explanation:

i know

Answer:

14000/100*105 = 14,700

Step-by-step explanation:

Answer:

its D 3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

5+3=8

8-5=w

Answer: The car is 6.6 years old.

Step-by-step explanation:

Hi, to answer this question we have to replace the values in the equation given:

Y = 1/2 (half the value)

A = 1 (total value)

r =10% = 0.10 (decimal form)

Replacing:

y = A(1-r)^t

1/2 = 1 (1-0.10)^t

Solving for t:

(1/2)/1 = 0.9^t

1/2 = 0.9^t

log 1/2 = log 0.9^t

log 1/2 = (t) log 0.9

(log 1/2)/ log 0.9 = t

6.57 =t

6.6 years (rounded)

We have been given that in an assembly line, 56 out of 60 randomly selected parts have no faults. We are asked to predict the number of parts that will have no faults in a similar batch of 12,000 parts.

We will use proportions to solve our given problem.

[tex]\frac{\text{Not faulty parts}}{\text{Total parts}}=\frac{56}{60}[/tex]

[tex]\frac{\text{Not faulty parts}}{12,000}=\frac{56}{60}[/tex]

[tex]\frac{\text{Not faulty parts}}{12,000}\times 12,000=\frac{56}{60}\times 12,000[/tex]

[tex]\text{Not faulty parts}=56\times 200[/tex]

[tex]\text{Not faulty parts}=11,200[/tex]

Therefore, approximately [tex]11,200[/tex] parts will have no faults in a similar batch of 12,000 parts.