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4 years ago

Use benchmarks to choose the metric unit you would use to measure each.

Mathematics

1 answer:

marta [7]4 years ago

6 0

!-1 metter
2-2 liters
3-680 miles

i'm not sure

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If a car travels 120 miles in 2 hours, what is its rate of speed expressed as a unit rate?

erastovalidia [21]

The speed is 60 miles per hour

Step-by-step explanation:

Speed is the distance covered per unit time.

The formula for speed is:

$Speed = \frac{distance}{time}\\$

Given

Distance = d = 120 miles

Time = t = 2 hours

Putting the values in the formula

$s = \frac{d}{t}\\=\frac{120}{2}\\= 60$

The speed is 60 miles per hour

Keywords: Speed, distance

Learn more about speed at:

#LearnwithBrainly

8 0

3 years ago

What is the retail price of the lamp

ElenaW [278]

Answer:

$61.60

Step-by-step explanation:

The lamp is selling for $44 but will be increased by 40%. To increase by 40% we multiply by 1.40.

44 x 1.40 = 61.6

3 0

4 years ago

Read 2 more answers

Subtract (3x^3+4x^2)-(2x^3+3x^2-x)

insens350 [35]

Answer:

X^3 + x^2 + x

Step-by-step explanation:

First, distribute the negative sign to the numbers in the second parentheses. Then you’ll need to combine like terms.

4 0

3 years ago

Review the graph of complex number z. On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Poi

Elan Coil [88]

Answer:

The modulus of z is $\sqrt{10}$

Step-by-step explanation:

Complex number:

A complex number, given by:

$z = x + iy$

Can be represented also as a point (x,y).

The modulus is given by:

$|z| = \sqrt{x^2 + y^2}$

Point z is at (negative 3, 1). What is the modulus of z?

$x = -3, y = 1$ . So

$|z| = \sqrt{x^2 + y^2} = \sqrt{(-3)^2+1^2} = \sqrt{10}$

The modulus of z is $\sqrt{10}$

5 0

3 years ago

Mr. Perez is flying a grizzly bear kite on a 45 ft string. If Mr. Perez is 5.7 ft tall and the kite is 29 ft off the ground, wha

diamong [38]

Answer:

Step-by-step explanation:

Draw a Right triangle in your head

The hypotenuse would be 45 ft and the opposite side of where Mr. Perez is standing would be the altitude of the kite plus Mr. Perez's height.

So to find the angle you can simply use the inverse of Sin(x)

Sin^-1(x)= $\frac{34.7}{45}$ and solve

x=50.45

7 0

4 years ago