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4 years ago

5x – 2= 8 Please help me

Mathematics

1 answer:

Marta_Voda [28]4 years ago

6 0

Answer:

x = 2 because 5 times 2 = 10 and 10 - 2 = 8

Step-by-step explanation:

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Is the triangle with side lengths of 18cm, 24cm and 30 cm a right triangle ?

kumpel [21]

If a, b and c are the lengths of a right triangle and c is the longest side, then:

$a^2+b^2=c^2$

We have a = 18cm, b = 24cm and c = 30cm. Substitute and check:

$L_s=18^2+24^2=324+576=900\\\\R_s=30^2=900\\\\L_s=R_s$

<h3>Answer: It's the right triangle.</h3>

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4 years ago

Together 2 apples have 1/5 gram fat how many apples have a total of 4 grams of fat

dimulka [17.4K]

Answer:The answer is 40 apples.

Step-by-step explanation:

It takes 10 apples to make a gram of fat. Multiply the 10 apples by 4 grams of fat to find that it takes 40 apples to make 4 grams of fat.

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3 years ago

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Astronomy: At is closest approach, Mars is about 5.6X10^7 km from Earth and its apparent size is about 0.00012 radians. What is

Mariana [72]

1.) D = 2pi * d * A / 360 degrees; Where:
pi = 3.14;
d = distance or 56,000,000 km (5.6x10^7 to standard notation)
A = angular size in degrees or .00688 degrees (.00012 radian to degrees)

D = 2(3.14) * 56,000,000 * .00688 / 360
= 6.28 * 385,280 / 360
= 2,419,558.4 / 360
D = 6,720.996 or 6,721

Therefore, 6,721 km. is the approximate diameter of Mars.

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3 years ago

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Help me on this please

Solnce55 [7]

Answer:

Step-by-step explanation:

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3 years ago

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The newest invention of the 6.431x staff is a three-sided die. On any roll of this die, the result is 1 with probability 1/2, 2

Gwar [14]

Answer:

<h2>The answer is 0.23(approx).</h2>

Step-by-step explanation:

The given die is a three sided die, hence, there are only three possibilities of getting the outcomes.

We need to find the probability of getting exactly 3s as the result.

From the sequence of 6 independent rolls, 2 rolls can be chosen in $^6C_2 = \frac{6!}{2!\times4!} = \frac{30}{2} = 15$ ways.

The probability of getting two 3 as outcome is $\frac{1}{4} \times\frac{1}{4} = \frac{1}{16}$ .

In the rest of the 4 sequences, will not be any 3 as outcome.

Probability of not getting a outcome rather than 3 is $1 - \frac{1}{4} = \frac{3}{4}$ .

Hence, the required probability is $15\times\frac{1}{16}(\frac{3}{4})^4 = \frac{1215}{4096}$ ≅0.2966 or, 0.23.

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3 years ago