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Elina [12.6K]
3 years ago
15

Which of the following quadratic equations has no real solution?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
8 0
D. You define if a quadratic equation has an answer or not by the delta (the calculation inside the sqrt on the quadratic formula). So you simply calculate b^2 -4ac, if the answer is equal or greater than zero there is a solution, if not there isn’t. (Consider ax^2+bx+c) Hope it helped :)
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Kim saved $25 in 9 weeks. At that rate, how long will it take Kim to save $175?
Simora [160]

Answer:

it would take 63 weeks to save that much money

Step-by-step explanation:

divide 25 by 9 and get 2.7 then multiply 2.7 by 63 to get 175

3 0
3 years ago
Leia cuts congruent triangular patches with an area of 63 square centimeters from a rectangular piece of fabric that is 27 centi
m_a_m_a [10]
<span>- The triangular patches have an area of 63 cm</span>² (A1= 63 cm²)<span>.
- The rectangular piece of fabric is 27 centimeters long and 21 centimeters wide. 

 1. Then, the first thing you must do is to calculate the area of the piece of fabric. The formula for the area of a rectangle is:

 A2=LxW
 
 L=27 centimeters (The lenght of the rectangle)
 W=21 centimeters (The width of the rectangle)

 2. When you substitute the values of L and W into the formula, you obtain:

 A2=(27 cm)(21 cm)
 A2=567 cm</span>²
<span>
 3. Then, let's calculate how many triangular patches she can cut from a rectangular piece of fabric:

 A2/A1= 567 cm</span>²/63 cm²= 9 triangular patches

 4. Finally, you can calculate how many triangular patches she can cut from 33 rectangular pieces of the fabric:

 (9 triangular patches)(33 pieces of fabric)=297 triangular patches
<span>
 How many of the patches can Leia cut from 33 pieces of the fabric?

 The answer is: 297 triangular patches</span>
6 0
3 years ago
Multiply. express your anwser in simplist form.. 1 7\8 × 2 1\3​
Vera_Pavlovna [14]

Answer:

If not simplified 35/8 if simplified 4 and 3/8.

Have a fantastic day :)

3 0
3 years ago
Read 2 more answers
HURRY PLS HELP ILL GIVE BRAINLYEST Subtract.
natka813 [3]

Answer:

2940

Step-by-step explanation:

You are subtracting a negative number. "Minus a negative is plus."

525 - (-2415) = 525 + 2415 = 2940

6 0
3 years ago
Read 2 more answers
私はこれをGoogle翻訳を使って書き留めています。地面からうんちをすくい取ります。今やれ!
vodomira [7]

Answer:

yessssss

Step-by-step explanation:

thanks ;p;p;

6 0
3 years ago
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