Help please I am really struggling with this practice !

Help Please I Am Really Struggling With This Practice !

Answers

Answer 1

Answer:

The answer would be 71 because x = 9 so y = 71


Related Questions

One pot has a water height of 8cm. Calculate the water pressure at the bottom of the pot. They give g = 10N / kg p = 1000kg / m3

Answers

We are given:

Depth of water column = 8 cm

g = 10 N/kg and ρ (density) = 1000 kg / m³

Finding the pressure at the bottom:

We know that the formula for pressure at the bottom of a fluid is:

P = P₀ + hρg           [where P₀ is the atmospheric pressure]

P = P₀ + (0.08 m) (1000 kg / m³) (10 m / s²)

P = P₀ + 800 N/m²

we know that the atmospheric pressure, in N/m² is approximately 10⁵

P = (10⁵ + 800) N/m²             [N/m² is also commonly called 'Pascals']

which means that at the bottom of the water column, the pressure is 800 Pascals more than what it normally is

4. At what temperature will the average speed of oxygen molecule be sufficient so as to escape from the earth? [escape velocity from the earth is 11.2km/s and mass of one oxygen molecules is 5.34×10-26 gm/molecule and Kg = 1.38 x 10-23J/K]​

Answers

Vshahjdi zhsbbsjsoa dij sh

I’ll mark as brainliest.

Answers

Answer:

7 + 7 = 14(given lengths)

34(total length) - 14(given length) = 20

20 divided by 2(2 missing slots) = 10

Answer:

10 in

Step-by-step explanation:

formula for perimeter:2 (l + b)

perimeter=34 in

2 ( l + 7 ) = 34

2l + 14 = 34

2l = 34 - 14

l = 20 ÷ 2

l = 10 in

Which expressions are equivalent to -3. + 6y + 70 - 14?
Select all correct answers
A-10.x - 14
B. 2(2x + 3y - 7)
C. 4. - 6y + 14
D. 4. + 6y - 14
E 10x + 6y - 14

Answers

Answer:

I am guessing C

Step-by-step explanation:

Jasmine bought a new IPhone for $1000. The value of the phone depreciates 10% each year. What will the phone be worth after 4 years?

Answers

Answer:

$ 656.1

Step-by-step explanation:

a = 1000(1 - .1)^4

a = 1000(.9)^4

a = 656.1

express Rs 1.50 as a percentage of 200 cents

Answers

1 $ = 100 cents

1.5 $ = 150 cents

1.50 $ a percentage of 200 cents = (150/200)100= 75%

Perform the indicated operation.
g(t) =t+2, f (t) = −3t^3– 1
Find: (g o f)(-4)

Answers

Hi there!

[tex]\large\boxed{g(f(t))(-4) = 193}[/tex]

Find g(f(t))(-4) by substituting in f(t) for t into g(t):

g(f(t))(t) = (-3t³ - 1) + 2

Simplify:

g(f(t))(t) = -3t³ + 1

Substitute in -4 for t:

g(f(t))(-4) = -3(-4)³ + 1 = 193

what is the answer of this question​

Answers

Answer:

[tex]\frac{7^2 * 7^{3} * z^5}{z^3 * 10}\\\\= \frac{7^5 * z^2}{10}\\\\= \frac{16805z^2}{10}[/tex]

I'm not sure if it's correct

1.) A butterfly can fly 82 feet in four seconds and a dragonfly can fly 50 feet in two seconds. Which can fly faster and by how much? *
1 point
The dragonfly is 4.5 feet per second faster.
The butterfly is 4.5 feet per second faster.
The dragonfly is 20.5 feet per second faster.
The butterfly is 32 feet per second faster.

Answers

Answer:

The dragonfly is 20.5 feet per second faster

Step-by-step explanation:

Answer:

A. The dragonfly is 4.5 feet per second faster.

Step-by-step explanation:

Speed of butterfly:

82/4 = 20.5 ft/sec

Speed of dragonfly:

50/2 = 25 ft/sec

The difference:

25 - 20.5 = 4.5 ft/sec

Correct choice is A

What can you conclude about these triangles? Check
all that apply.
0 Angle E corresponds to angle L.
O All corresponding angles are proportional.
The measure of angle E is 29º.
0 The two triangles are similar.
The two triangles are congruent.

Answers

Answer:

Angle E corresponds to angle LThe two triangles are similar

Step-by-step explanation:

Angle E corresponds to angle L because the two triangles are similar (and we know this becuase corresponding sides are proportional.

find the zeros of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients
[tex]4x ^{2} + 8x[/tex]

Answers

Answer:

Zeros would be x= 0, -2

Step-by-step explanation:

hope this helps :)

1) A searchlight is mounted on the front of a search and rescue helicopter. The pilot is
flying the helicopter 150 m above the ground and the centre of the searchlight is angled
down at an angle of 70 degrees from the horizontal. The beam spreads out by 2.5
degrees to either side of the centre of the beam. How wide an area does the beam
illuminate on the ground?
I
I need it today please

Answers

561 cm because if you do the math mc = square you get that answr your welcome

If 4 + x = −3 + 2x, then 9x =_____?

Answers

Answer:

4+x=-3+2x

4+3=2x-x

7=x

9x=9*7

=63

Step-by-step explanation:

Answer:

[tex]4 + x = - 3 + 2x \\ x - 2x = - 3 - 4 \\ - x = - 7 \\ x = 7 \\ therefore = \\ 9x = 9 \times 7 \\ 9x = 63 \\ i \: hope \: this \: was \: helpful [/tex]

Evaluate (2.4 x 10^4) (4.5 x 10^3)


Plss help!

Answers

Answer:

Step-by-step explanation:

2.4*10^4*10^3*4.5

=10.8*10^4+3

=10.8*10^8

=10.8*100000000

=1080000000

54,372,000,000,000 in scientific notation

Answers

Answer:

5.4372 x 10 to the 5th power

Step-by-step explanation:

Answer:

[tex]5.4372*10^{13}[/tex]

Step-by-step explanation:

No links!!!
Will give brainliest and please don’t guess

Answers

Answer:

You were so worried about somebody guessing

you forgot to ask a question!

Step-by-step explanation:

What type of slope does the line y = -3 have?
negative
zero
undefined
positive

Answers

Answer:

zero

Step-by-step explanation:

y = - 3 is a horizontal line parallel to the x- axis.

Since it is parallel to the x- axis it has a slope of zero

Answer:

zero

Step-by-step explanation:

Turn this percent into a decimal: 0.04%

Answers

Answer:

0.04

Step-by-step explanation:

Si a los lados de un cuadrado se le aumenta en 3 y 5 m respectivamente la superficie del nuevo rectangulo es 440m .Encontrar el lado del cuadrado inicial

Answers

Answer:

El lado del cuadrado inicial es 17 m.

Step-by-step explanation:

El área de un rectángulo se calcula a partir de los dos lados diferentes. Siendo a y b el valor de ambos lados, el área de la figura es el producto de los dos lados contiguos del rectángulo.

A los lados de un cuadrado se le aumenta en 3 y 5 m respectivamente la superficie del nuevo rectángulo es 440 m². Siendo x el lado del cuadrado inicial, entonces el área del rectángulo se puede expresar como:

(x+3)*(x+5)= 440 m²

Resolviendo:

x*x + 5*x + 3*X + 3*5= 440

x² + 8*x + 15=440

x² + 8*x + 15 -440= 0

x² + 8*x -425= 0

Una función cuadrática de la forma a*x² + b*x + c= 0 se puede resolver mediante la expresión:

[tex]\frac{-b+-\sqrt{b^{2}-4*a*c } }{2*a}[/tex]

En este caso, a=1, b=8 y c=425. Reemplazando:

[tex]\frac{-8+-\sqrt{8^{2}-4*1*(-425) } }{2*1}[/tex]

Resolviendo:

[tex]\frac{-8+\sqrt{8^{2}-4*1*(-425) } }{2*1}= \frac{-8+\sqrt{64+1700} }{2*1}= \frac{-8+\sqrt{1764 } }{2}= \frac{-8+42 }{2}= \frac{34}{2} = 17[/tex]

y

[tex]\frac{-8-\sqrt{8^{2}-4*1*(-425) } }{2*1}= \frac{-8-\sqrt{64+1700} }{2*1}= \frac{-8-\sqrt{1764 } }{2}= \frac{-8-42 }{2}= \frac{-50}{2} = -25[/tex]

Como las longitudes no pueden ser negativas, el lado del cuadrado inicial es 17 m.

Write the equation of the line that is parallel to y =- 2x + 5 and goes through the point (2, -3)

Answers

Answer:

y = -2x + 1

Step-by-step explanation:

Parallel lines are two lines that have the same plane and slope but never intersect.

Factor 48q + 6 :Example of form: Factor 15a + 10 Answer. 5(3a + 2)

Answers

Answer:

=6 times 8q+6

=6(8q+1)

Step-by-step explanation:

x^2+3x−10=0 (solve for x)

Answers

Answer:

x1=2 x2=-5

Step-by-step explanation:

help me please (3) 20 points

Answers

Answer:

Step-by-step explanation:

surface are of cuboid=2(lb+bh+hl)

=2(14*12+12*6+6*14)

=2(168+72+84)

=2*324

=648 in.^2

Answer:

648 inches

Step-by-step explanation:

First, you do 14 times 12 times 2 and get 336.

Next, you do 14 times 6 times 2 and get 168.

Then you do 6 times 12 times 2 and get 144.

Now add 336, 168, and 144 together to get 648.

One​ day, the hours without daylight in a particular city was 17 3/4 hours. What was the number of hours of​ daylight? PLS help me ASAP!

Answers

Answer:

6 ¼ hours of Daylight

Step-by-step explanation:

a day = 24 hoursyou know that there was 17 ¾ hours of no day light 17 ¾ = 17.7524 - 17.75 = Daylight hoursdaylight hours = 6.25

What is the length of this rectangle?

Answers

Answer and Step-by-step explanation:

The answer is:

[tex]x^3 - 3[/tex]

When we multiply this length by the height ([tex]8x^{2}[/tex]), we get the area.

When a power/exponent (attached to a base/number) is having its' base being multiplied to another base with an exponent (and the bases are the same), the exponents will add together.

#teamtrees #PAW (Plant And Water)

Hikers set up camp at 5,200 feet on
Guadalupe Peak. They plan to reach
the summit at 8,750 feet by hiking
equal distances cach day for the
next 5 days. Which number line
represents the distance, in feet, they
must hike each day to reach the
summit?

Answers

Answer:

710 ft

Step-by-step explanation:

8750 - 5200 = 3550

3550 / 5 = 710

Pls do it for me thank you so much

Answers

Answer:

(a) Attached to this response.

(b)

(i) 0 cups = 0.275

(ii) 4 cups = 0.125

(iii) 8 cups = 0.025

Step-by-step explanation:

(a) The frequency and relative frequency table has been attached to this response.

i. The first column, labelled x, is the number of cups of coffee consumed per day.

ii. The second column, labelled f, is the number of people that consumed x cups of coffee per day. It is found by counting the number of occurrences (i.e frequency) of the numbers of the first column, x, in the given data.

For example, 0 in first column appears 11 times in the given data. Also, 5 in the first column appears 4 times in the given data.

iii. The third column, labelled r, is the relative relative frequency of the number of cups of coffee. It is calculated by dividing the frequency of the cups of coffee by the total number of people that consumed it. As shown on the table, it is calculated by dividing the each of the values on the second column by the sum of the values on that same column (second column).

For example, the relative frequency of 2 cups of coffee is given by:

r = 7  ÷ 40 = 0.175

Also, the relative frequency of 4 cups of coffee is given by;

r = 5 ÷ 40 = 0.125

(b) The probability (Pₓ) that a randomly selected person consumed x cups of coffee is given by;

Pₓ = frequency of x ÷ total frequency

This is also the relative frequency of x

Therefore,

(i) The probability (P₀) that a randomly selected person consumed 0 cups of coffee is given by;

the relative frequency of 0 = 0.275

(ii) The probability (P₄) that a randomly selected person consumed 4 cups of coffee is given by;

the relative frequency of 4 = 0.125

(iii) The probability (P₈) that a randomly selected person consumed 8 cups of coffee is given by;

the relative frequency of 8 = 0.025

Between 06 00 and 10 00,the same day, the volume of water in a reservoir decreased from 24 000 L to 18 000 L. What was the average rate of decrease in volume of water, giving your answer in L/h ?

Answers

Answer:

Step-by-step explanation:

Given,

Time taken (t) = 10 - 6 = 4hrs

Water decreased (V) = 24000l - 18000l = 6000l

Now,

average rate of decrase (Avg) = V/t = 6000l/4 =1500 L/h

Sharon started driving on the highway in the morning. The equation m=60h represents the number of miles, m, that Sharon has driven on the highway in h hours. Four other cars are on the same highway. click on all the graphs that represent cars moving faster than Sharon's car.​

Answers

Answer: car 1, and car 4

Step-by-step explanation: if you look at the graphs you would have to look at where 1 hour would hit 60. If it’s past 60, the car is moving faster than sharon. Hope this helps!

From the top of a cliff 8 metres high,two boats are seen in a direction due West. Find the distance between the boats if their angles of depression from the top of a cliff are 45 degrees and 30 degrees. Find also the actual distance the further boat from the top of the cliff.​

Answers

Answer:

Distance of first boat = 8 meter

Distance of second boat = 13.87 meter (Approx.)

Step-by-step explanation:

Given:

Height of cliff = 8 meter

Angle of depression respectively = 45° and 30°

Find:

Distance of boats

Computation:

Tanθ = Perpendicular / Base

Tan45 = 8 / Distance of first boat

1 = 8 / Distance of first boat

Distance of first boat = 8 meter

Tan30 = 8 / Distance of second boat

0.577 = 8 / Distance of second boat

Distance of second boat = 8 / 0.577

Distance of second boat = 13.8648

Distance of second boat = 13.87 meter (Approx.)

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