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4 years ago

Write a join problem that can be solved by 5/3 - 2/5

Mathematics

1 answer:

Burka [1]4 years ago

6 0

Answer:

$1 \frac{4}{15}$

Step-by-step explanation:

$\frac{5}{3} - \frac{2}{5} \\ = \frac{25}{15} - \frac{6}{15} \\ = \frac{19}{15} \\ = 1 \frac{4}{15}$

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Tell whether the triangle is a right triangle. Show Work.

Yakvenalex [24]

Answer:

This is not a right triangle because the hypotenuse is less than the two sides and aren't equal when following the Pythagorean thm

Step-by-step explanation:

To confirm if a triangle is a right triangle, we must use the Pythagorean thm

a^2 + b^2 = c^2

23^2 + 11.4^2 = 21.2^2

529 + 129.96 = 449.44

658.96 ≠ 449.44

7 0

3 years ago

Please help me answer thanks.

Dmitry_Shevchenko [17]

Answer:

see explanation

Step-by-step explanation:

Given that M is directly proportional to r³ then the equation relating them is

M = kr³ ← k is the constant of proportion

To find k use the condition when r = 4, M = 160, thus

160 = k × 4³ = 64k ( divide both sides by 64 )

2.5 = k

M = 2.5r³ ← equation of variation

(a)

When r = 2, then

M = 2.5 × 2³ = 2.5 × 8 = 20

(b)

When M = 540, then

540 = 2.5r³ ( divide both sides by 2.5 )_

216 = r³ ( take the cube root of both sides )

r = $\sqrt[3]{216}$ = 6

5 0

3 years ago

What is an equation of the line that passes through the points (0, -1)(0,−1) and (6, 1)(6,1)?

horrorfan [7]

$slope = y2 - y1 \div x2 - x1$

$1 - - 1 \div 6 - 0$

$2 \div 6$

$1 \div 3$

$y = mx + c$

$1 = 1 \div 3 \times 6 + c$

$1 = 2 + c$

$c = 3$

$y = 1 \div 3x + 3$

5 0

3 years ago

The diagram below shows a square cardboard with an area of 132.25 cm ².A square of side x cm is cut and removed from each of its

PilotLPTM [1.2K]

Answer:

i think it's 10.6

Step-by-step explanation:

112 = x^2

4 0

3 years ago

The original price of a computer game is 45$ The price is marked down by 18$ what percent of the original price is the markdown?

OLga [1]

Answer:

$27

Step-by-step explanation:

$45 - $18 = $27

Percentage 150% (27 divided by 18 = 1.5, shift the decimal right two times and add the zero at the end which gives you 150%)

4 0

2 years ago