Pls help !!! I really do not know who to do this

3

Hope this helps! :)

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Robert can read 180 pages in \(1\frac 12\) hours

The given parameters in the question are:

Speed = 2 pages per minute

Number of hours = \(1\frac 12\) hours

The number of pages to read in this time can be calculated using the following equation

Number of pages = Speed * Number of hours

Substitute the known values in the above equation So, we have the following equation

Number of pages = 2 * \(1\frac 12\)

Convert the units

Number of pages = 2 * \(1\frac 12\) * 60

Evaluate

Number of pages = 180

Hence, the number of pages is 180 pages

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Answer: E, A and C.

Step-by-step explanation:

The first question would be E because it is the closest to zero. An easy way to this one is to look at A and E because they are obviously the closest to 0, however when you simply A down, it becomes 1/5. 1/5 is larger than 1/8, therefore 1/8 would be the smaller one closer to 0.

The second question would be A and C, or the second answer, because the question is asking for an answer that is less than half. To do this one easily, look at the numerator, and if it's less than half of the denominator (for example in A, 1 is NOT more than half of 3, however in E, 7 is more than half of 12).

Answer:

Carbon dioxide: 0.04%

Oxygen: 28% (It says 21% online but there's no 21% so I'm guessing that it would be 28% because that is the closest number.)

Nitrogen: 71% (It says 78% online but there's no 78% so I'm guessing that it would vbe 71% because that is the closest number.)

Argon: 1% (It says 0.93% online but if you round up 0.93% it would round up to 1%.)

The value of surface area of the tent is 21.4 m²

Now, For find the surface area of a prism you must calculate:

1. The perimeter of the base

2. The area of the base

3. The height of the prism

We have a triangular prism:

Its base is an equilateral triangle of side length 2 m and height 1.7 m

The height of the prism is 3 m

Since, The surface are of the prism is:

S.A = perimeter of the base × height + 2 × area of the base

And, The perimeter of the equilateral triangle = 3 × length of a side

The length of the side = 2 m

Hence, The perimeter of the base = 3 × 2 = 6 m

Since,  The area of the triangle =  1/2 × base × height

The length of the base of the triangle = 2 m

and, The height of the triangle = 1.7 m

Hence, The area of the base =  × 2 × 1.7 = 1.7 m²

Since,  S.A = perimeter of the base × height + 2 × area of the base

Here,  The perimeter of the base = 6 m

The area of the base = 1.7 m²

The height of the prism = 3 m

So, We get;

S.A = 6 × 3 + 2 × 1.7

S.A = 18 + 3.4

S.A = 21.4 m²

Thus, The surface area of the tent is, 21.4 m²

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Answer:

B. >

Step-by-step explanation:

Yes, you got it correct! Anything with a "-" is always less than a "+". Look at it this way:

I have 11 dollars (+11) and you owe me one dollar (-1). Now which is better?

Hope this helps

~R3VO

\(x^2=-64\implies x=\sqrt{-64}\implies x=\sqrt{-1\cdot 64}\implies x=\sqrt{-1}\cdot \sqrt{64} \\\\\\ x=\sqrt{-1}\cdot 8\implies x=i\cdot 8\implies x=8i\)

Let's assume the sum of the scores of the 28 students who took the test yesterday is 28 * 72 = 2016.

We know that the sum of the scores of all 30 students is (28 * 72) + x + y, where x and y are the scores of the two students who took the test this morning.

We also know that the mean of all 30 scores is 73. So we can write an equation:

[(28 * 72) + x + y]/30 = 73

Multiplying both sides by 30, we get:

2016 + x + y = 2190

So, x + y = 174.

We are given that the difference of the two scores is 22, so we can write another equation:

y - x = 22

Solving these two equations simultaneously, we get y = 98 and x = 76.

Therefore, the lower score from this morning is 76.

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Answer:

S= t/2+9/2

Hope This Helps :-)

40,000 in scientific notation can be represented by the expression

4 × 10⁴ .

The number 40000 can be written in the scientific notation as 4 × 10⁴ .

Scientific notation must be used when a number is either too large or too little to be stated in decimal form, which typically yields a long string of digits. It's also known as standard index form or scientific form.

460000000 = 4.6×10⁸

6230000000 = 6.23×10⁹

60500000 = 6.05 x 10⁷

Since it may make a number of mathematical operations simpler, this base ten notation is frequently employed by scientists, mathematicians, and engineers. A digit that improves a number's correctness is referred to as an essential figure. This includes all non-zero values, significant zeroes, and zeros in significant intervals between significant digits.

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Answer:

radius = √35 mm or 5.916 mm

Explanation:

Here:

Solve for radius:

\(\rightarrow \sf \pi r^2 = 110\)

\(\rightarrow \sf \dfrac{22}{7} r^2 = 110\)

\(\rightarrow \sf r^2 = \dfrac{110(7)}{22} =35\)

\(\rightarrow \sf r = \sqrt{35}\)

Let's see

Answer:

22 dollars

Step-by-step explanation:

Answer:

6 - 16y

Step-by-step explanation:

2(3 – 8y) = 2 × 3 - 2 × 8y = 6 - 16y

Answer:

hey mate pls attach the photo....can't understand

Answer:

Step-by-step explanation:

Using the information provided we can create the following two equations each of which calculates the total number of minutes that the whale (w) or the platypus (p) can stay underwater. In order to solve each, you would need the value of at least 1 of the mammals.

w = 7 * (p+x)

p = (w / 7) - x

The w in these equations represents the number of minutes the whale can stay underwater while the p represents the number of minutes that the platypus can stay underwater.

Answer:

1.7367

Step-by-step explanation:

To solve for z, we can use the order of operations, also known as PEMDAS, to simplify the left-hand side of the equation first:

z − –4.24 ÷ 3 = 3.15

z + 4.24/3 = 3.15 (since -(-4.24) = 4.24)

z + 1.4133 = 3.15 (dividing -4.24 by 3 gives 1.4133)

z = 3.15 - 1.4133 (subtracting 1.4133 from both sides)

z = 1.7367

Therefore, z is approximately equal to 1.7367

Answer:

14494

Step-by-step explanation:

if it said above sea level it is positive and if it is below it it negive

Answer:

14.494

Step-by-step explanation:

Above sea level means that it's not underwater, or below. Because she's above, it's going to be a positive number. So then the answer remains the same. Though if it were BELOW sea level it would be negative.

The equation of the line which passes through the coordinates (0,0) and (3.5,3.5) is y = x.

The slope intercept form of a line is given by:-

y = mx + c

Where,

m represents the slope of the line

c represents the y -intercept

(x,y) represents the coordinates of each point on the line.

We also know the slope of the line will be:-

(3.5-0)/(3.5-0) = 3.5/3.5 = 1

Hence, m = 1

Putting (0,0) in y = mx + c, we get,

0 = m*0 + c

0 = 0 + c

c = 0

Hence, the equation of the line is given by:-

y = x

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Answer:

45 lb is about 20.412; rounding it would be 20.4

Step-by-step explanation:

1 kg is about 2 pounds. (Used a conversion thing).

Answer:

TC recheck it hexes ten 8 Uzbek

Answer:

The temperature at the end of the day was -9°C

Step-by-step explanation:

-2 - 7 = -9

The cylindrical coordinates of (−7, 7, 7) are (√98, -π/4, 7). cylindrical coordinate (−7, 7 3 , 1) is  (14, -π/3, 1).

We must switch from rectangular to cylindrical coordinates in the provided problem. (let r ≥ 0 and 0 ≤ θ ≤ 2π.)

A)(−7, 7, 7)

Given rectangular coordinates(x, y, z) =(−7, 7, 7)

The cylindrical coordinates are (r, θ, z)

As a result, we determine each value of r and θ  separately.

r = √x²+y²

r = √(-7)²+(7)²

r = √49+49

r = √98

θ = tan⁻¹ (y/x)

θ =tan⁻¹  (7/-7)

θ =tan⁻¹  (-1)

θ = -π/4

So cylindrical coordinate = (r, θ, z) = (√98, -π/4, 7)

B) (-7,7√3,1)

Given rectangular coordinates(x, y, z) = (-1,1,1)

The cylindrical coordinates are (r, θ, z)

As a result, we determine each value of r and θ  separately.

r = √x²+y²

r = √(-7)²(7√3)²

r = √49+147

r = √196

r = 14

θ = (y/x)

θ = (7√3/-7)

θ = (-√3)

θ = -π/3

So cylindrical coordinate = (r, θ, z) = (14, -π/3, 1)

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Answer:

64%

Step-by-step explanation:

I hope this helps!

The average speed of the ball which travelled 24 meters in 8 seconds is 3m/s.

Speed is simply referred to as distance traveled per unit time.

Mathematically, Speed = Distance ÷ time.

Given the data in the question;

To determine the average speed of the ball, plug the given values into the above equation and simplify.

Speed = Distance / time

Speed = 24 meters / 8 seconds

Speed = 3m/s

Therefore, the speed is 3 meters per seconds.

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An all-night study session can help you catch up on school assignments. The only way to become a straight-A student is efficient study habits.

Most students pseudo-work and end up wasting valuable time.

The correct option is (C)

This is based on an article about pseudo-working which is something that students do where they read for long hours and appear very serious in reading when in fact they do not focus on the reading and therefore end up not grasping much.

The author was trying to express that most students do this and that it is simply a waste of time which could have been spent actually studying.

The correct option is (C).

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The given question is incomplete, complete question is:

What central idea about studying does the author express in Passage 1?

A Straight-A students know how to work harder than other students.

B The only way to become a straight-A student is efficient study habits.

C Most students pseudo-work and end up wasting valuable time.

D An all-night study session can help you catch up on school assignments.

-1.08333333333

I used a calculator

hope it helps!

Answer:

\(-1.083\)

Step-by-step explanation:

If you want to convert \(\frac{-26}{24}\) as a fraction, you will have to divide the numerator by the denominator.

\(-1.083\)

\(Aaishathameem\)