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Art [367]
3 years ago
10

3x^2+5x-28=0 solve this for me please

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer:

x= 7/3

x=-4

Step-by-step explanation:

Use the quadratic formula

a= 3, b=5, c=-28

-5± \sqrt{5^2-4*3(-28)}

x= _________________

              2.3

Simplfy

x=\frac{-5+19}{6} \\x=\frac{-5-19}{6}

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A softball base is 15 x 15 inches long and wide. What is the length of the diagonal?
Finger [1]

Answer:

15 sqrt 2

Step-by-step explanation:

Use Pythagorean Theorem

a^2 + b^2 = c^2

15^2 + 15^2 = c^2

225 + 225 = 450

Find prime factors of the sq rt of 450

450 = 2 * 3 * 3 * 5 * 5

15 sqrt 2

4 0
2 years ago
The standard unit for length is the ____. yard meter foot milliter please help its due in 6 mins!!!
LenaWriter [7]

Answer:

Meter

Step-by-step explanation:

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7 0
3 years ago
Let a is in {−3, −1, 0}. Evaluate −a for each element of the set.
12345 [234]
Ok so a∈{-3,-1,0}. then just {-3*-1,-1*-1,0*-1} which comes to  {3,1,0}

7 0
3 years ago
There are 340 freshman at BHSS. This is one hundred less than two times the number of sophomores. Find the number of sophomores
natta225 [31]
To put it into an equation, it would be:

340 = 2x - 100

with x being the amount of sophomores at BHSS.

Solve it:

340 + 100 = 2x

2x = 440

x = 220

The number of sophomores at BHSS is 220.




5 0
3 years ago
Tori takes his dog to be groomed. The fee to groom the dog is $75 plus a 6.75% tax. Is $80 enough to pay for the service? Explai
vlabodo [156]
Answer:
No
Explanation:
75 x 6.75 ÷ 100 = 5.0625
75 + 5.0625 = 80.0625
80.0625 = 80.06$
4 0
3 years ago
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