MATHEMATICS MIDDLE SCHOOL

What's is 7x90 it not hard it's not easy it medium

Answers

Answer 1

Answer: 90 × 7 = 630 , it's not hard, it's easy

Answer 2

Answer:

Answer:

630

Step-by-step explanation:

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One highlighter has a mass of 11 grams. Another highlighterhas a mass of 10,800 milligrams. Which highlighter has the
greater mass?

Answers

10,800 milligrams equals 10.8 grams so that the first highlighter has the greater mass

The highlighter that had a mass of 11 grams has a greater mass. 11 grams = 11000.

To the nearest hundredth of a centimeter, what is the length of the hypotenuse?

Answers

Side of the triangle is given as :- 32.63 cm

Angle formed by hypotenous and one side of triangle = 30°

We can solve this question by using cos30°

So,
$= > cos30 = (32.63)/(hypotenuse) \n \n = > hypotenuse = (32.63)/( 0.866 ) \n \n = > hypotenuse = 37.679 \: \: \: \: (ans)$

The hypotenuse would be equal to roughly 37.67 centimeters.

In order to find this we use the cosine function and the adjacent side length. Then my cross multiplying and solving, we can get the answer.

$Cos( \alpha) = (ADJ)/(HYP)$

$Cos( 30) = (32.63)/(HYP)$

.866(HYP) = 32.63

HYP = 37.67

a spinner marked with four sections blue, green, yellow, and red was spun 100 times. find the experimental probability of landing on blue

Answers

25 because onehundred divided by four is 25

When should you use multiplacation to solve a system of linear equations by elimination

Answers

there are many different ways to solve linear equation not just time sing

PLEASE HELP ME I BEG YOU I REALLY NEED!!!!

Answers

polynomial that represents a difference in cubes.

x³ - 64 = 0
x³ = 64
∛x³ = ∛64
x = 4

Correct Steps for factoring the polynomial 5x³ - 40
5(x³ - 8)
5((x)³ - (2)³)
5(x - 2)(x² + 2x + 4)

To check:
5(x - 2)(x² + 2x + 4)
(5x - 10) (x² + 2x + 4)
5x(x² + 2x + 4) - 10(x² + 2x + 4)
5x³ + 10x² + 20x - 10x² - 20x - 40
5x³ + 10x² - 10x² + 20x - 20x - 40
5x³ - 40

Difference of cubes: a³ - b³

A) x³ - 64 = x³ - 4³

In B, 4 is not a cube number.

In C, this is the sum of a cubes. 8x³ + 27 = (2x)³ = 3³

In D, 4 is not a cube number.

Your answer is A.

Question #6

5x³ - 40
5[x³ - 8]
5[x³ - 2³]

Note: x³ - y³ = (x-y)(x² + xy + b²)

5[(x-2)(x² + 2x + 2²)]
5[(x-2)(x² + 2x + 4)]

Your answer is B.

Sandra deposited $2,500 into a simple interest account. She earned $75 in interest after 1 year. Ron deposited $8,000 into an account that has the same interest rate as Sandra’s account. How much money did Ron earn in interest after 1 year? Show your work please 30 points!!!HURRY PLEASE!!!!!!