Are the ratios 4:6 and 7:9 equivalent yes or no

Answer:

hi, the answer is B or 1 :)

Answer:

1

Step-by-step explanation:

[tex](3^{2} +4^{2})*5^{-2}[/tex]

Simplify (remember [tex]a^{-n}=\frac{1}{a^{n} }[/tex]):

[tex](9+16)*\frac{1}{25} \\25*\frac{1}{25}\\\frac{25}{25} \\1[/tex]

Answer:

480 students

Step-by-step explanation:

if we know that each bus transports 40 students and there are 12 buses each day then we can just multiply 12 by 40 and we get 480

Answer:

28

Step-by-step explanation:

140 / 5 = 28

Large population can be represented in scientific notations

The population in 30 years time is 1.53 * 10^11

The current population is given as:

[tex]\mathbf{Population = 5.1 \times 10^{10}}[/tex]

In 30 years time, the population would be 3 times more.

This means that, the population in 30 years time is: 3 multiplied by the current population.

So, we have:

[tex]\mathbf{New = 3 \times Population}[/tex]

So, we have:

[tex]\mathbf{New = 3 \times 5.1 \times 10^{10}}[/tex]

Multiply

[tex]\mathbf{New = 15.3 \times 10^{10}}[/tex]

Rewrite as:

[tex]\mathbf{New = 1.53 \times 10^{11}}[/tex]

Hence, the population in 30 years time is 1.53 * 10^11

Read more about scientific notations at:

https://brainly.com/question/1705769

Total objects

As

[tex]\\ \sf\longmapsto Unit\:price=\dfrac{Sale\: Price}{No\:of\: units}[/tex]

[tex]\\ \sf\longmapsto Unit\:Price=\dfrac{D_2({E_2)}}{C_2}[/tex]

Or

[tex]\\ \sf\longmapsto Unit P=\dfrac{E_2(D_2)}{C_2}[/tex]

Answer:

Step-by-step explanation:

See attached

Number of units in cell E2, Total price in D2

The formula for unit price is:

Answer:

the answer is after 5 hours.

Answer:

4.5

Step-by-step explanation:

B(0,-9)

C(-2,-5)

=> BC = [tex]\sqrt{(-2-0)^{2} -(-5+9)^{2} } = 4.4721[/tex]

Answer:

30 = 140 M&M's I 40 = 120 M&M's I 50 = 100 M&M's

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

v = how many students fit into a van

b = how many students fit into a bus

School A:

9v+7b=457 (1)

School B:

11v+7b=473 (2)

(1)&(2) => v=8

b=55

Answer:

652.3

Step-by-step explanation:

Answer:

Length of an Arc = θ × (π/180) × r

Answer:12/5 (3rd option)

Step-by-step explanation:

tangent is opposite over adjacent so take the side opposite the angle A and put it over the side that is adjacent to angle A

It's given that WXYZ is a parallelogram. In a parallelogram, the adjacent angles sum up to 180°. Here, 2u - 2 & 3u + 12 together make 180° because they are adjacent angles.

2u - 2 + 3u + 12 = 180

2u + 3u - 2 + 12 = 180

5u + 10 = 180

5u = 170

u = 170/5

u = 34

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Answer:

The slope of the fuction is going downwards left. (coordinate plane)

Step-by-step explanation:

It's going downwards left on a coordinate plane because it's going from positives into negatives.

Answer:

The slope is -7/4

Step-by-step explanation:

For every 4 to the right, it goes down by 7. So rise over run so the rise is -7 and the run is 4 so that gets us -7/4

Answer:

When k(x) is 2x² - 5x + 3, k(-3) = 36.

Step-by-step explanation:

k(x) = 2x² - 5x + 3

Substitute the input of x.

k(-3) = 2(-3)² - 5(-3) + 3

Square -3.

k(-3) = 2(9) - 5(-3) + 3

Multiply 2 and 9.

k(-3) = 18 - 5(-3) + 3

Multiply -5 and -3.

k(-3) = 18 + 15 + 3

Add 18 and 15.

k(-3) = 33 + 3

Add 33 and 3.

k(-3) = 36.

Step-by-step explanation:

If A is acute, cos (180 - A) = - cos A (because the coordinates would be in 2nd quadrant)

If A is right angle, cos (180 - 90) = cos 90 = 0

(because the coordinates would be on y-axis)

If A is obtuse, cos (180 - A) = + cos A (because the coordinates would be in 1st quadrant)

Answer:

14 miles per 1 hour (14m/1hr), I hope this helps :)

Answer:

Explanation is

Step-by-step explanation:

[tex]y = 10x +2~~....(i) \\\\-5x +4y = -27~~....(ii)\\\\\text{Substitute y =10x+2 in equation (ii):}\\\\\\-5x +4(10x+2) = -27 \\\\\implies -5x + 40x + 8 +27 =0\\\\\implies 35x +35=0\\\\\implies 35(x +1) =0\\\\\implies x +1 = 0 \implies x = -1\\\\\text{Substitute} ~x =-1 ~ \text{in equation (i):}\\\\y = 10(-1) +2 = -10+2 = -8 \\\\\\\text{Hence}~ (x,y) = (-1,-8)[/tex]

Answer:

  (x, y) = (19/35, 52/7)

Step-by-step explanation:

When you have an expression for one of the variables, the "substitution" method of solution is a reasonable choice. Here, we have an expression for y that can be substituted into the second equation.

  -5x +4(10x +2) = 27

  35x +8 = 27 . . . . . . . simplify

  35x = 19 . . . . . . . subtract 8

  x = 19/35 . . . . divide by the coefficient of x

  y = 10(19/35) +2 = 52/7

The solution is (x, y) = (19/35, 52/7).

Answer:

2/5

Step-by-step explanation:

2/3 of 3/5 means to multiply the fractions to get 6/15

6/15 can be reduced by dividing by 3 to get 2/5

Answer:

$7.66

Step-by-step explanation:

[tex]0.78 \times 3 = 2.34[/tex]

[tex]10.00 - 2.34 = 7.66[/tex]

Answer:

$7.66

Step-by-step explanation:

1. Multiply $0.78 x 3. (you should get $2.34)

2. Subtract $10.00 from $2.34

Your final answer should be $7.66

Answer:

The answer is MQR= 48 degrees

Step-by-step explanation:

I got this answer from process of elimination. The first option was 48 degrees so I divided 48 by 3 and got 16 then I applied to (2x + 16): (2(16)+16) and got 48 which comfirmed my answer. Also I took the test and it was right so I know its correct.

yes. yes.

yes, yes,

yes, yes,

Step-by-step explanation:

What's the rule .

So our answers are

The two graphs that represent proportional relationships are A and C.

A proportional relationship is:

y = k*x

Where k is the constant of proportionality.

So, a proportional relationship is a linear equation that passes through the point (0, 0).

With that in mind, we can see that the two graphs that represent a proportional relationship are A and C.

If you want to learn about proportional relationships:

https://brainly.com/question/12242745

#SPJ5

Answer:

402

Step-by-step explanation:

Answer:

Exponential

Step-by-step explanation:

- Linear is a straight line no matter what.

- Quadratic lines makes a u or v shape that opens up, down, left, or right.

- Exponential is like a slanted 45° clockwise u and a bit stretched horizontally.

- Square root lines on a graph, looks more like a slanted L 90° clockwise.

- Inverse Variation would show its inverse, same as a mirror, it would be something similar to a hyperbola.

Hope This Helps!

Answer:

26 meters

Step-by-step explanation:

Answer:

the answer is 20.

add up the length, and the hight,

then times it by 2.

BOOM

you get the answer :)

Step-by-step explanation: