Round 45.983 to the nearest whole number, tenth and hundredth.

Mathematics

1 answer:

Nady [450]3 years ago

8 0

Answer:

Step-by-step explanation:

if you round to the nearest whole, look at the tenths place and if it is bigger than 4, then then you round up, like 7043.7305 to 7044 but if the tenths place is smaller than 5, the number stays the same but the decimal part is gone, like 350.24569405 to 350.

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Which is the best estimate for the diagonal of a rectangle with a width of x and a length of 2x, if x is 1.33?

german

The best estimate for the diagonal of the rectangle is 3 ⇒ B

Step-by-step explanation:

In a rectangle:

The length and the width are perpendicular
The length of its diagonal = $\sqrt{(length)^{2}+(width)^{2}}$ (the diagonal is the hypotenuse of a right triangle whose legs are the length and the width of the rectangle)

∵ The width of a rectangle = x

∵ The length of the rectangle = 2x

∵ The diagonal = $\sqrt{(length)^{2}+(width)^{2}}$

- Substitute the length by 2x and the width by x

∴ The diagonal = $\sqrt{(2x)^{2}+(x)^{2}}$

∴ The diagonal = $\sqrt{4x^{2}+x^{2}}$

∴ The diagonal = $\sqrt{5x^{2}}$

∵ x = 1.33

- Substitute the value of x by 1.33 to find the diagonal

∴ The diagonal = $\sqrt{5(1.33)^{2}}$

∴ The diagonal = 2.973

∴ The diagonal ≅ 3

The best estimate for the diagonal of the rectangle is 3

Learn more:

You can learn more about the rectangles in brainly.com/question/13084321

#LearnwithBrainly

6 0

3 years ago

A 2 -ounce box of cornflakes costs 4.59.

noname [10]

The unit rate for the first question is 0.19 ounce. the second one the unit rate is 0.16 the 36 ounce is the better buy.

6 0

3 years ago

Someone help pls :((

harina [27]

Answer:

56.714°

Step-by-step explanation:

Since we do not have a full angle of this proposed triangle, we must do this by splitting it into two right triangles instead of using the law of sines.

250m*sin(40°) = 250m*0.64278760968 = 160.696902422m

452.4m-160.696902422m=291.703097578m

Use pythagorean theorem:

$\sqrt{250^2 - 160.696902422^2}$