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Vadim26 [7]
3 years ago
12

What are the roots of 2x^2+10×-48=0

Mathematics
1 answer:
mojhsa [17]3 years ago
8 0
X=-8,3.
divide all terms by the two in the first term to get x^2+5x-24=0. Then find the factors. To do so, find what two numbers can be multiplied to get 24, and whether those two numbers can be added or subtracted to get the middle term (5). Since 8x(-3)=24 and 8-3=5, (x+8) and (x-3) are the factors. Then set the factors equal to zero. Add or subtract these numbers to the other side of the equation and you then get x=-8,3. These are the roots.
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If a 42.9 foot tall flagpole casts a 253.1 foot long Shadow then how long is a shadow that 6.2 foot tall woman casts
soldi70 [24.7K]
The women's shadow would be 36.6ft. long. 
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                                                        253.1               X
Then you cross multiply (6.2*253.1) and divide (1569.22/42.9) equals 36.6
5 0
3 years ago
Can someone help me with this? its a relatively simple problem for extra credit in algebra 1.
suter [353]
(2x^2+3x+4)(x^3+4x^2+3x)(x+4)

First use the distributive property for the first two:

(2x^5+8x^4+6x^3+3x^4+12x^3+9^2+4x^3+16x^2+12x)(x+4)

And then combine like terms:

(2x^5+11x^4+22x^3+25x^2+12x)(x+4)

Continue use the distributive property:

(2x^6+11x^5+22x^4+25x^3+12x^2+8x^5+44x^4+88x^3+100x^2+48x)

Continue combine like terms:

(2x^6+19x^5+66x^4+113x^3+112x^2+48x)
And that is your final answer.

Hope that help:)
4 0
2 years ago
What is 3x-4y+7=3y+1
grin007 [14]

Answer: 3x-4y+7=3y+1

Step-by-step explanation:

Since there is no negative x positive 4 and no negative number up to 7 that is the same, and since there is no negative number up to 3y or negative 1 the number stays the same so the answer is 3x-4y+7=3y+1

4 0
2 years ago
A. Each day, your teacher randomly calls on 5 students in your class of 30. What is the
Anettt [7]

Answer:

The probality is 5/30 or in simpliest form it is 1/6!

Step-by-step explanation:

Hope this helps! Plz give me brainliest

4 0
3 years ago
THIS IS 6TH GRADE please help me! thanks​
Stella [2.4K]

Answer:

D.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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