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4 years ago

Is there an error in this statement If x2 = 25, then x = 5.

2 answers:

7 0

Yes there is an error in this statement.

because x^2 = 25
so x = 5...this is one condition

Another condition is x = -5
(-5)^2 = 25 (this is also true)

Troyanec [42]4 years ago

3 0

No because 5 to the power of 2 equals 5 x 5 and 5 x 5 = 25 hope this helped

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Hitung jarak di antara titik P(7, 1) dengan titik Q(7, 8)

MaRussiya [10]

Answer:

7 units

Step-by-step explanation:

Distance between 2 points

= $\sqrt{(y1 - y2)^{2} + (x1 - x2) {}^{2} }$

Thus, distance PQ

$=\sqrt{(8 - 1)^{2} + (7 - 7)^{2} } \\ = \sqrt{7^{2} } \\ = 7$

Or you could simply take 8-1= 7 since both points have the same x-coordinate. Thus, PQ is a vertical line and the distance between them is due to the difference in their y-coordinate.

5 0

3 years ago

Help me please ill give 5 star rating

babymother [125]

Answer:

Option A. $7\ basil$ and $11\ squash$

Step-by-step explanation:

Let

b-----> the number of packets of basil seed

s-----> the number of packets of squash seeds

we know that

$b+s=18$

$b=18-s$ -----> equation A

$1.5b+2.5s=38$ -----> equation B

substitute equation A in equation B and solve for s

$1.5(18-s)+2.5s=38$

$27-1.5s+2.5s=38$

$s=38-27$

$s=11$

Find the value of b

$b=18-11=7$

therefore

$7\ basil$ and $11\ squash$

6 0

3 years ago

3 hamburgers / 14$

OLga [1]

Wow, James must be fatjk jk
-3 hamburgers// 4 meals (12 hamburgers)
-4 pizzas// 3 meals (12 pizzas)
-2 steaks// 7 meals (15 steaks)
-5 hotdogs// 3 meals (15 hotdogs)
But that leaves you with $8 to spend

8 0

3 years ago

Jamie's truck has a 40-gallon gas tank.

andreev551 [17]

Answer:

$60.48

Step-by-step explanation:

hope this helps!!

5 0

3 years ago

Answer all of the questions please

kakasveta [241]

Answer:

Domain (-2,3)

Range (-10, 20)

Function: Definitely

Step-by-step explanation: So check it right. Starting with Domain how far do our values go in the x direction positive and negative in this case the farthest to the left is -2 and to the right is 3. For range same thing but now we look at the y axis -10 is lowest and 20 is the highest. Open circles don't affect our domains or range but they are important for determining functions. This is a function because going up and down the graph vertically at any points doesn't collide with any point more than once. If the open circle were closed then this would not be a function but in this case it is a function.

4 0

3 years ago