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jasenka [17]
3 years ago
14

What is the sum of the zeros of the equation y = 2x2+5x−3

Mathematics
1 answer:
ch4aika [34]3 years ago
4 0

Answer:

2×2+5×-3= -11

Step-by-step explanation:

que te pjefa ayudar

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Undefined is the answer because there is no value for x
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Excel - How to graph different APRs using one formula for an excel beginner? Image Attached
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Answer:

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3 0
4 years ago
Carol used 1.8 gallons of paint for a barn.She used 1/5 of the remaining paint for a dog house. She had 2/7 paint left. How much
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5 0
3 years ago
If tan theta = 12/5 and cos theta &lt; 0, what is sin theta ?
Talja [164]
1 + tan ² Ф=sec²Ф
1+(12/5)²=sec²Ф
169/25=sec² Ф
sec Ф=⁺₋√(169/25)=⁺₋13/5

sec Ф=1/cos Ф ⇒cosФ=1/sec Ф
 cos Ф>0   ⇔  sec Ф>0  ⇔  sec Ф=+ 13/5

cos Ф=1/secФ
cos Ф=1 / 13/5=5/13

we can calculate the sin Ф, with this method.
sin²Ф + cos²Ф=1  ⇒ sin Ф=⁺₋√(1-cos² Ф)
sin Ф=⁺₋√[1-(5/13)²]=⁺₋12/13
like cos Ф>0 and tan Ф>0   ⇒ sin Ф>0 ⇒sin Ф=12/13

answer: d.12/13

other method
tan Ф=sin Ф / cos Ф
12/5=sin Ф / 5/13
sin Ф=(12/5)*(5/13)=12/13

answer: d.12/13

8 0
3 years ago
Solve for a and b in the following circles:<br> B)<br> a а<br> b<br> 82°
Crank

Answer:

A.po ang sagot

Step-by-step explanation:

ty po hope it help wag nyo na lang po kopyhin kung mali yan po kasi answer ko

8 0
3 years ago
Read 2 more answers
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