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2 years ago

Plz, Help me with this question.

Mathematics

2 answers:

AURORKA [14]2 years ago

7 0

Answer:

x+7 i think

Step-by-step explanation:

Finger [1]2 years ago

5 0

Answer:

Hello :D

Step-by-step explanation:

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HELP!!! NO CLUE WHAT TO DO HERE!!!

Mariulka [41]

Answer:

7.7

Step-by-step explanation:

square root 59 and it's 7.681, round to tenth to get 7.7

8 0

1 year ago

H(x)=(x^2)+1 and K(x)=-(x^2)+4. If K(H)=0, what are the roots/solutions?

zubka84 [21]

$H(x)=(x^2)+1\ \ \ \ and\ \ \ \ K(x)=-(x^2)+4. \\\\K(H)=-(H^2)+4=-(x^2+1)^2+4=4-(x^2+1)^2=\\\\.\ \ \ =2^2-(x^2+1)^2=(2-x^2-1)(2+x^2+1)=(1-x^2)(3+x^2)=\\\\.\ \ \ =(1-x)(1+x)(x^2-3\cdot i^2)=(1-x)(1+x)(x- \sqrt{3} \cdot i)(x+ \sqrt{3} \cdot i)\\\\ K(H)=0\ \ \ \ \Leftrightarrow\ \ \ (1-x)(1+x)(x- \sqrt{3} \cdot i)(x+ \sqrt{3} \cdot i)=0\\\\x=1\ \ \ \ or\ \ \ \ x=-1\ \ \ \ or\ \ \ \ x=\sqrt{3} \cdot i\ \ \ \ or\ \ \ \ x=-\sqrt{3} \cdot i\\\\Ans.\ e.$

4 0

2 years ago

A. Y=-1/2x+2<br> B. Y=1/2x+2<br> C. Y=-2x-3<br> D. Y=2x-6

hjlf

Answer:

B: Y=1/2×+2 I think that's it

3 0

2 years ago

Hannah has a bag containing 2 Red, 4 purple, 4 Blue and 2 Green

juin [17]

Answer:

1/18

Step-by-step explanation:

there are 12 marbles in the bag

P(choose red) = 2/12 = 1/6

P(choose blue after replacement) = 4/12 = 1/3

P(choose red, then blue with replacement) = (1/6)(1/3) = 1/18

7 0

2 years ago

Two cars, 540 kilometers apart, begin driving toward each other on a long, straight highway. one car travels 75 kilometers pe

Elodia [21]

One car travels at a speed of 75 kilometers per hour and the other car travels at a speed of 105 kilometers per hour.

Since both the cars are travelling towards each other their combined speed will be: 75+105=180 km/h.

Now, since the distance between the cars to start with is 540 km. Therefore, the time taken before the cars collide is:

$t=\frac{540}{180} =3$ hours.

Now, the speed of the canary is 100 km/h.

Therefore, the Canary flies flies for (100 km/h)x(3 hours) = 300 km before the cars collide.

5 0

2 years ago