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wariber [46]
2 years ago
5

What are the roots of this quartaic equation? -102 + 12r - 9 = 0

Mathematics
2 answers:
elena-14-01-66 [18.8K]2 years ago
7 0

Answer:

r = \frac{37}{4}  

I hope this helps!

katovenus [111]2 years ago
4 0

Answer:

0

Step-by-step explanation:

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Pls help!! 15 points!
Vesna [10]

When trapezoidal prism undergoes a dilation, the size of the prism changes

The height of the image is 52.2 meters

<h3>How to determine the height of the image?</h3>

The given parameters are:

A1 = 35 m²

A2 = 315 m²

H1 = 5.8 m

To calculate the height of the image, we make use of the following equivalent ratio

A1 : H1 = A2 : H2

So, we have:

35 : 5.8 = 315 : H

Express as fractions

35/5.8 = 315/H

Make H the subject

H = 315 * 5.8/35

Evaluate the product

H = 52.2

Hence, the height of the image is 52.2 meters

Read more about dilation at:

brainly.com/question/3457976

6 0
2 years ago
Read 2 more answers
21 POINTS!<br>Jeff had $20. He spent 3/8 of his money on lunch. How much money does jeff have left?
lara [203]

Answer:

$12.50

Step-by-step explanation:

3/8 x 20/1 = 7.5

20 - 7.5 = 12.50

4 0
2 years ago
1.) Multiply 2ab(−a+2b+3).(1 point)
GarryVolchara [31]

Answer:

(x+3)(4x−2)  =  4x2+10x−6

(x+2)(x2−3x +4) = x3−x2−2x+8

Step-by-step explanation:

8 0
3 years ago
A ferris wheel can accommodate 54 people in 24 minutes. How many people could ride the ferris wheel in 2 hours? What was that ra
Vladimir79 [104]
120÷24=5

5×54=270

270 People in 2 hours
3 0
3 years ago
Someone please help me I’m not good in math
Artist 52 [7]
The missing factor is (a -1) I believe. If you foil (5a + 9)(a - 1) you would get 5a^2 + 4a - 9.
7 0
3 years ago
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