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ziro4ka [17]
3 years ago
8

The area of a triangle whose height is 1 more than 6 times its base is 13 square feet. If the base of the triangle is x feet, wh

ich equation models this situation?
A. 6x^2 +x-12=0

B. 6x^2+x-13=0

C. 6x^2+x-26=0

D. 36x^2+6x-26=0
Mathematics
1 answer:
brilliants [131]3 years ago
4 0
The correct answer is choice C.  Here is the reason.  If you substitute the information into the formula this is what it would be:
 A = bh/2
13 = x (6x + 1)/2
13 = (6x^2 + x)/2
26 = 6x^2 + x
0 = 6x^2 + x - 26
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A grinding stone completes 175 revolutions before coming to a stop. How many radians did the stone complete
alexandr402 [8]

Answer:

175 * 2 * \pi

350\pi radians

Step-by-step explanation:

8 0
3 years ago
The length of a photograph is 3cm less than twice the width. The area is 54cm². Find the dimentions of the photograph.
AnnyKZ [126]
L=2w-3 

w(2w-3)=54

2w²- 3w-54=0

A= 2 , B= -3, C= -54

sub values into quadratic formula
 i attached picture of formula

Final answer:  you will be given 2 answers 6 and -4.5. -4.5 is rejected since a negative value cannot represent length because that just doesn't make sense.

w=6

Check:
L=2w-3
=2(6)-3
=12-3
=9
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Therefore the dimensions of the photograph are 6 cm by 9 cm



3 0
3 years ago
Read 2 more answers
Please help me <br> I’ll mark brainiest
Lubov Fominskaja [6]

Answer:

which number

every of them?

8 0
2 years ago
What is the product?
Luba_88 [7]

Step-by-step explanation:

= (x - 3)(2x² - 5x + 1)

= 2x³ - 5x² + x - 6x² + 15x - 3

= 2x³ + (-5 - 6)x² + (1 + 15)x - 3

= 2x³ - 11x² + 16x - 3

Option → C

5 0
2 years ago
Laura retired from her job recently, and she has saved about $396,460.00 over the course of her career. She plans to withdraw $1
Tomtit [17]
So she has 396460
she will withdarw 1700 per month, and withdraw is loss or minus or (-)

after x months, she has 359060 left so

total-withdrawn=remaining
withdrawwn=1700 times months so withdrawn=1700x
total-1700x=remaining
total=396460
reaining=359060
subsitute
isolate x then divide is the strategy

396460-1700x=359060
add 1700x to both sides
396460=359060+1700x
subtract 359060 from both sides
37400=1700x
divide both sides by 1700
22=x

she has been retired for 22 months
7 0
3 years ago
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