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2 years ago

Answer this please please

Mathematics

1 answer:

zloy xaker [14]2 years ago

6 0

Answer:

x is less than -3

Step-by-step explanation:

3x^2+9x<0

x^2+3x<0

x(x+3)<0

x+3<0

x<-3

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1 Minutes, 30 seconds

Serggg [28]

I think it would be (15-6)*5 because when it says 5 times you would cross out both B and D but then you have to find out what large as 15 minus 6 which i think would be (15-6) so your answer would be C. (15-6)*5

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3 years ago

Read 2 more answers

What is the simplified expression for 3^3 x 3^3/ 3^4

Juli2301 [7.4K]

Answer:

Step-by-step explanation:

$\frac{3^{6} }{3^{4} }$

$3^{2}$

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3 years ago

Plz help me by answering these circled questions<br>in steps plz

igor_vitrenko [27]

a- is -28 and i’m working out the rest for you now

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3 years ago

Can anyone please help me with 8th grade math? I will give BRAIN!!!

Anit [1.1K]

The given percentage scores are:

80 , 92 , 91 , 75 , 89 , 84 , 0 , 85

A. Calculate the average

So, the average = (sum of the scores)/(number of the scores)

Sum of the scores = 80 + 92 + 91 + 75 + 89 + 84 + 0 + 85 = 596

The number of the scores = 8

So,

The average = 596/8 = 74.5%

Does the average score really represent her abilities ?

No, because there is outlier which is ( 0 ) which mean it may be absent this test

the other scores are within 75 and 92

Which mean the average is less than the reasonable minimum score

====================================================================

B. Brandee received 78% at the missed test

so, we will find the new mean:

The new sum of the scores = 80 + 92 + 91 + 75 + 89 + 84 + 78 + 85 = 674

The new mean = 674/8 = 84.25%

====================================================================

C. What different did 0% score make ?

So, 0% give us not accurate representation of the student abilities

Does this new mean represent her abilities accurately ?

Yes

7 0

1 year ago

How much material, in square inches, is needed to make the flag? square inches if the material costs $0.15 per square inch, how

lorasvet [3.4K]

The amount needed to purchase materials needed to cover the area of the triangular flag is: $54.

<h3>What is the Area of a Triangle?</h3>

Area of a triangle = 1/2(bh)

Given the dimensions of the flag as the following:

base (b) = 18 in.

height (h) = √(41² - 9²) = 40 in.

Area of the flag = 1/2(18)(40) = 360 in.²

Cost of material needed = (360)(0.15) = $54

Learn more about area of a triangle on:

brainly.com/question/9030437

#SPJ4

5 0

1 year ago