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3 years ago

OK THIS IS MAH 3rd QUESTION CAN SOMEONE PLS HELP MEH?I REALLY NEED HELP PLS!:3

Mathematics

2 answers:

nasty-shy [4]3 years ago

8 0

Answer:

The earthquake was a magnitude 6.8, which describes the relative size of the earthquake at the spot where it occurred. Earthquakes with a magnitude larger than 6 tend to be severe and cause damage.

Step-by-step explanation:

Now that i wrote this passage you have to figure out which one it is

Aleonysh [2.5K]3 years ago

3 0

I’m not sure of that but it might be 6.8

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4.2z + 3.8z simplify the expression (Use the operation symbols in the math palette as needed. Simplify your answer. Use whole n

alexandr1967 [171]

Answer:

Step-by-step explanation:

Since these are like terms, add the numbers together and then put the z on.

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3 years ago

What are the coordinates of the vertex of y=x²+4x+3?

Travka [436]

Answer:

(-2, -1).

Step-by-step explanation:

y = x² + 4x + 3

Completing the square:

y = (x + 4/2)^2 - (4/2)^2 + 3

y = (x + 2)^2 - 4 + 3

y = (x + 2)^2 - 1.

This is vertex form and the coordinates of the vertex are (-2, -1).

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3 years ago

Meneca bought a package of 435 party favors to give to the guests at her birthday party. She calculated that she could give 9 pa

Makovka662 [10]

She is expecting approximately 48 guests

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3 years ago

Read 2 more answers

The expression 6(x − 5) means the . If x = 7, the value of the expression is

ololo11 [35]

Step-by-step explanation:

replace x with7

6(7-5)

6(2)

7 0

3 years ago

In three hours, Company ABC can make X ball bearings. Company DEF can make X ball bearings in 4 hours. Company GHI can make X ba

amm1812

Answer:

<em>X ball bearings will be made in 1 hour and 20 minutes</em>

Step-by-step explanation:

<u>Proportions </u>

The proportions give us an important tool to easily solve common problems of any type. We know that:

Company ABC can make X ball bearings in 3 hours.

Company DEF can make X ball bearings in 4 hours.

Company GHI can make X ball bearings in 6 hours.

In one hour, each company can make

ABC: X/3 ball bearings

DEF: X/4 ball bearings

GHI: X/6 ball bearings

Working together, they can make

$\displaystyle \frac{X}{3}+\frac{X}{4}+\frac{X}{6}$

ball bearings. Operating

$\displaystyle \frac{4X+3X+2X}{12}=\frac{9X}{12}=\frac{3X}{4}$

If they can make 3/4 of a ball bearing in one hour, then one complete ball bearing will need

$\displaystyle \frac{4}{3}$ hours to complete. It's equivalent to 1 1/3 hours or 1 hour and 20 minutes

X ball bearings will be made in 1 hour and 20 minutes

8 0

3 years ago