Question

Using a number line, what is the approximate value of 19−−√?
A:4.38
B:4.13
C:4.5
D:4.25
Answer
Using a number line, what whole number and rational number to the nearest half is 105−√ between?
A:between 9.5 and 10
B:between 11 and 11.5
C:between 10 and 10.5
D:between 10.5 and 11
Answered by Valentina
Determine the sign of the product of −152×−1. Enter + for positive or ­­­– for negative.
Answered by Valentina
Multiply 7×−4.
Answered by Valentina
−28×−19
Answered by Valentina
Determine the sign of the product of 1732×(−110).(1 point)
Responses

negative
negative

The product has no sign.
The product has no sign.

positive
positive

both positive and negative
Answered by Valentina
is the answer negative?
Answered by Valentina
Determine the sign of the product of −0.708×−6.24.(1 point)
Responses

A. both positive and negative
both positive and negative

B. The product has no sign.
The product has no sign.

C. negative
negative

D. positive
Answered by GPT 3.5
We can estimate the value of $\sqrt{19}$ by finding the two perfect squares that $\sqrt{19}$ is between. The perfect squares closest to 19 are 16 and 25. Since 19 is closer to 16 than it is to 25, we can estimate $\sqrt{19}$ to be a little greater than $\sqrt{16}=4$. Therefore, the approximate value of $19-\sqrt{19}$ can be estimated to be a little less than $19-4=15$. However, we can get a more accurate estimate by noting that $\sqrt{19} \approx 4.36$, since $4.36^2=18.9696$. Therefore, $19-\sqrt{19} \approx 19-4.36 = \boxed{14.64}$, which is closest to answer choice $\boxed{\textbf{(D) }4.25}$.
Answered by GPT 3.5
We can estimate the value of $\sqrt{105}$ by finding the two perfect squares that $\sqrt{105}$ is between. The perfect squares closest to 105 are 100 and 121. Since 105 is closer to 100 than it is to 121, we can estimate $\sqrt{105}$ to be a little greater than $\sqrt{100}=10$. Therefore, the approximate value of $105-\sqrt{105}$ can be estimated to be a little less than $105-10=95$. However, we can get a more accurate estimate by noting that $\sqrt{105} \approx 10.25$, since $10.25^2=105.0625$. Therefore, $105-\sqrt{105} \approx 105-10.25 = 94.75$. To the nearest half, this is between $\boxed{\textbf{(B) }11 \text{ and } 11.5}.$
Answered by GPT 3.5
To determine the sign of the product $-152 \times -1$, we can consider the rule that states: the product of two negative numbers is positive.

Since $-152$ and $-1$ are both negative, their product will be positive.

Therefore, the sign of the product $-152 \times -1$ is $\boxed{+}$ (positive).
Answered by GPT 3.5
When multiplying a positive number by a negative number, the result is always negative.

Therefore, $7 \times -4 = \boxed{-28}$.
Answered by GPT 3.5
When multiplying two negative numbers, the result is always positive.

Therefore, $-28 \times -19 = \boxed{532}$.
Answered by GPT 3.5
The sign of the product of two numbers is determined by the signs of the numbers being multiplied. In this case, we are multiplying 1732 by -110.

Since one of the numbers is negative, the product will be negative.

Therefore, the sign of the product of 1732 and -110 is $\boxed{\text{negative}}$.
Answered by GPT 3.5
No, the answer is not negative. The product of 1732 and -110 is positive.
Answered by GPT 3.5
The product of two negative numbers is always positive.

Therefore, the sign of the product of -0.708 and -6.24 is $\boxed{\text{positive}}$.