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svp [43]
3 years ago
7

What are the solution(s) of the quadratic equation 98 – x2 = 0

Mathematics
2 answers:
natka813 [3]3 years ago
5 0

Answer: C on edg 2020

Step-by-step explanation:

DanielleElmas [232]3 years ago
4 0
To solve first move the 98 to the other side by subtracting it from both sides. Then divide by - 1 on both sides to that the x^2 is no longer a negative. You are left with:

x^{2} = 98

Now square root both sides to get

x = +/-  \sqrt{98}

The two factors that make up 98 are 49 and 2. 49 can be square rooted. So we are left with these answers:

x = - 7 \sqrt{2} and x = 7 \sqrt{2}
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Please help thanks !
Kitty [74]

Answer:

option D

Step-by-step explanation:

x^{2} + y^{2} = 16\\\\x^{2} = 16- y^{2}

equation 2:

\frac{x^{2}}{4} - \frac{y^{2}}{25} = 1

so we have:

\frac{16- y^{2} }{4}-\frac{y^{2}}{25}= 1

7 0
3 years ago
18) Which choice shows three lengths that cannot be the lengths of the three sides of a triangle? OA) 10 cm, 9 cm, 3 cm OB) 3 cm
Sergeu [11.5K]

Answer:b am pretty sure

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
ASAP PLEASE HELP NO LINKS
ArbitrLikvidat [17]

Answer:

a is 3,2 b is 1,-2 and c is -2,1

Step-by-step explanation:

u take the first number then you just put em together

5 0
2 years ago
Three eighths of the 32 children in the club were girls. <br> How many boys were in the club?
vivado [14]

Answer:

20

Step-by-step explanation:

3/8* 32= 12

32-12=20

12 Girls

20 Boys

8 0
2 years ago
Read 2 more answers
Please help me with this and I will give one of the answers most brainliest
inna [77]
A)

A=8\qquad\qquad B=12.5\\\\\\d(A,B)=|12.5-8|=|4.5|=\boxed{4.5\,\text{cm}}

b)

C=?\\\\\\d(C,A)=2\cdot d(C,B)\\\\|A-C|=2\cdot|B-C|\\\\|8-C|=2\cdot|12.5-C|\\\\&#10;|8-C|=|25-2C|\\\\\\8-C=25-2C\qquad\vee\qquad8-C=-(25-2C)\\\\-C+2C=25-8\qquad\vee\qquad8-C=-25+2C\\\\C=17\qquad\vee\qquad8+25=2C+C\\\\C=17\qquad\vee\qquad33=3C\quad|:3\\\\\boxed{C=17\qquad\vee\qquad C=11}

Mark 11 or 17.
4 0
3 years ago
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