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3 years ago

Can someone help me please? Thank you!

Mathematics

2 answers:

Genrish500 [490]3 years ago

6 0

The answer is A I done it before

daser333 [38]3 years ago

5 0

Answer:

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of the spaces formula

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NO LINKS PLEASE HELP

Luba_88 [7]

Answer:

3 * 7 *2

(front face and back)

plus

1 * 3 * 2

plus

7 * 1 * 2

42 + 6 + 14

= 72

Please brainliest

8 0

3 years ago

Emma’s pencil box is 7 inches long, 3 inches tall and 4 ½ inches wide. How much space (cubic inches) will her pencil box take up

zzz [600]

Answer:

94.5 inches³ (94.5 cubic inches)

Step-by-step explanation:

Volume= LxWxH

7x4.5x3= 94.5

Her pencil box will take up 94.5 inches³ in her desk.

8 0

3 years ago

Triangle A: 6 cm, 8 cm, and 10 cm Triangle B: 310 in, 25in, and 35in Triangle C: 8 ft, 15 ft, and 17 ft Triangle D: 0.32 mm, 0.9

Alexus [3.1K]

Answer:

Triangle B

Step-by-step explanation:

For a triangle with sides a, b and c,

If c² = a² + b²

Then triangle will be a right triangle.

If c² > a² + b²

Triangle will be an obtuse triangle

If c² < a² + b²

Triangle will be an acute triangle.

By applying these properties in the given triangles,

Triangle A:

6 cm, 8 cm and 10 cm

6² + 8² = 36 + 64

6² + 8² = 100 [c² = a² + b²]

Therefore, it's a right triangle.

Triangle B:

310 in, 25 in and 35 in

25² + 35² = 625 + 1225

= 1850

Since, 310² = 96100

And 96100 > 1850 [c² > a² + b²]

Therefore, It's an obtuse triangle.

Triangle C:

8 ft, 15 ft and 35 ft

8² + 15² = 64 + 225

= 289

Since, 17² = 289 [c² = a² + b²]

Therefore, It's a right triangle.

Triangle D:

0.32 mm, 0.96 mm and 1 mm

(0.32)² + (0.96)² = 1.024

Since, 1² = 1

And 1 < 1.024 [c² < a² + b²]

Therefore, triangle will be an acute triangle.

3 0

3 years ago

1. Undeliverable Mail Pieces. Of the 155 billion mailpieces the U.S. Postal Service (USPS) processed and delivered in 2017, 4.3%

Juli2301 [7.4K]

Answer:

The sampling distribution is, p = center = 0.043

The standard deviation of the sample, s = 6.0015×10⁻⁴

The shape is normal

Step-by-step explanation:

Here we have the standard deviation of a sample proportion, given by the following relation;

$Standard \ deviation \ of\ \hat p = \sqrt{\frac{p(1-p)}{n} } = \sqrt{\frac{0.043 \times (1-0.043)}{114250} } = 6.0015 \times 10^{-4}$

The center = p = 4.3% or 0.043

The shape is found by the value of n×p hence;

114250 × 0.043 = 4912.75 > 10 and

n(1 - p) = 114250 × (1 - 0.043) = 109337.25 also > 10 hence the shape is normal.

3 0

3 years ago

What is -3.9 plus 1.2?

BARSIC [14]

-2.7 because -3.9 plus 1.2 is -2.7

6 0

3 years ago

Read 2 more answers