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Goryan [66]
3 years ago
9

Evaluate the following expression:

Mathematics
1 answer:
Molodets [167]3 years ago
7 0

Answer:

Astronomers were trying to find the weight of six planets - Mars, Venus, Pluto, Jupiter, Mercury, and Saturn. The number of planets lighter than Mars was equal to the number of planets heavier than Venus. Saturn was heavier than Mars and Mercury were heavier than Pluto. Venus was lighter than Mars. Saturn was not the heaviest planet.

Step-by-step explanation:

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What is the first step in simplifying the following expression: 2 + 3(4 + 5×2) − 8 + 3^2
ch4aika [34]

Answer:

5 x 2 inside the parenthesis

Step-by-step explanation:

We need an order of operations to ensure we always arrive at the correct answer. It gives us a consistent way to work with numbers. We use the mnemonic device like PEMDAS to remember the correct order.

P-parenthesis

E-exponents

M-multiplication

D-division

A-add

S-subtract.

We apply them left to right doing inner operations before outer operations.

There fore our first step is in the parenthesis and multiplication because it is the inner most operations. 5 x 2 inside the parenthesis.

4 0
3 years ago
Prove that squaring a number will give a number that is divisible by 4
Marizza181 [45]
This is not true with every numbers, but here you need only one example, so it could be many, one of them are:

Proof:
Number 6, 
--Squaring of 6 = 6² = 36
--Now divide by 4, = 36/4 = 9  [ number is whole, so it is divisible ]

Number 8, 
-- Squaring of 8 = 8² = 64
--Now divide by 4, 64/4 = 16  [number is whole, so it is divisible ]

Here, I gave you two examples, but you can create some more, by any even number squaring like, 2, 4, 6, 8, 10, 12, 14

Hope this helps!
3 0
3 years ago
Read 2 more answers
martha put $4.87 in her coin bank each day she added in quarter 1 nickel and 3 pennies how much money was in her coin bank after
andrey2020 [161]
Hey You!

1 quarter = 25 cents

25 × 6 = 150

1 nickel = 5 cents.

5 × 6 = 30

3 pennies = 3 cents.

3 × 6 = 18

Add them all up:

4.87 + 1.50 + 0.30 + 0.18 = 6.85

There were $6.85 in the coin bank after 6 days.
5 0
3 years ago
Read 2 more answers
Type SSS, SAS, ASA, AAS, or HL to justify why AABC = ADEF.<br><br> AC FD and AB = DE
bezimeni [28]

The theorem that justifies why triangles ABC and DEF are congruent is: HL.

<h3>What is the Hypotenuse-Leg Congruence Theorem (HL)?</h3>

The hypotenuse-leg congruence theorem (HL) states that if two triangles that are right triangles have a pair of congruent hypotenuse and a pair of corresponding congruent legs, then both right triangles are proven to be congruent to each other. This means both right triangles are have the same shape and size.

Given that:

angle ABC = angle DEF = 90° (congruent right angles, this means both triangles are right triangles)

AC = FD (a pair of congruent hypotenuse)

AB = DE (a pair of congruent legs)

Thus, we can conclude that since triangle ABC and triangle DEF have a pair of congruent hypotenuses and a pair of congruent legs, therefore, the two right triangles, triangle ABC and triangle DEF are congruent to each other by the HL congruent theorem.

Thus, the theorem that justifies why both triangles are congruent is: HL.

Learn more about the HL congruence theorem on:

brainly.com/question/2102943

#SPJ1

3 0
1 year ago
Read 2 more answers
A scooter is 3 1/2 feet long. Find the length of a scale model of the scooter of the scale is 1 inch= 3/4 feet
Musya8 [376]
A scale model of this scooter would be 4 and 2/3 inches long.
4 0
3 years ago
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