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stira [4]
3 years ago
10

CORRECT ANSWER GETS BRAINLEST

Mathematics
1 answer:
krok68 [10]3 years ago
8 0

Answer:

Between -12 and -13, decimal estimate: -12.2

Step-by-step explanation:

First let's disregard the negative sign, and focus on \sqrt{150}. The smallest square below it is 12^2, or 144. The greatest square right above it is 13^2, or 169.

Now we know that  \sqrt{150} is somewhere between 12 and 13. Likewise  -\sqrt{150} is between -12 and -13. If 12.5 is the square root of 150, it is too high, so we reduce it to 12.2 to 12.3.

Then we can just negate our answer, since we are looking for -\sqrt{150}, to get about -12.2.

You might be interested in
How many angles are supplementary to the angle of 100 degrees?
Katen [24]

Answer:

I think its 2 good luck

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A food truck operator is parked in a lot at the corner of two streets. She wants to be equidistant from both streets. Should she
alekssr [168]

Answer:

Angle bisector

Step-by-step explanation:

median isn't applicable in this case as the roads from the streets are inclined at an angle.

altitude refers to height which is also not applicable

The perpendicular bisector is the locust of points equidistant from two points,

in this question the street are not seen as points but as lines which forms an angle and the bisection of this angle forms a locus where she can park her car. If she parks her car anywhere on the angular bisector of the two streets, she would be at equal distance from both streets.

7 0
4 years ago
Simplify 2a x a x 3a + b x 4b
loris [4]

Hello!

We have the following expression:

2a\cdot a\cdot3a+b\cdot4b

Let's multiply and simplify it, look:

6a^3+4b^2

We multiply a*a*a, so we can rewrite it as a³. The same with b*b as b².

So, the answer in the simplified form is:

6a³ + 4b²

7 0
1 year ago
5/3 (6x + 9) ≤ 2x − 5<br><br> step by step please
Sati [7]

Answer:

27.5 (is greater than) -2.5

>

Step-by-step explanation:

Distribute 5/3 to 6x and 9, (5/3•6x)+(5/3•9)=10x+15.

Set 10x+15 equal to 2x-5

10x+15=2x-5

(get rid of the smaller slope)

-2x -2x

8x+15=-5

+15 +15

8x=10

(divide by 8 to get the value of x)

8x divided by 8=x

10 divided by 8=1.25

x=1.25

Plug the known value of x back into the equations.

10(1.25)+15=27.5

2(1.25)-5=-2.5

27.5 (less than or equal to) -2.5 is incorrect. It would be

27.5 (is greater than) -2.5

6 0
3 years ago
Car X weighs 136 pounds more than car Z. Car Y weighs 117 pounds more than car Z. The total weight of all three cars is 9439 pou
Aleksandr [31]

Let x, y and z denote the weighs of car X, car Y and car Z, respectively.

We know that car X weighs 136 more than car Z, this can be express by the equation:

x=z+136

We also know that Y weighs 117 pounds more than car Z, this can be express as:

y=z+117

Finally, we know that the total weight of all the cars is 9439, then we have:

x+y+z=9439

Hence, we have the system of the equations:

\begin{gathered} x=z+136 \\ y=z+117 \\ z+y+z=9439 \end{gathered}

To solve the system we can plug the values of x and y, given in the first two equations, in the last equation; then we have:

\begin{gathered} z+136+z+117+z=9439 \\ 3z=9439-136-117 \\ 3z=9186 \\ z=\frac{9186}{3} \\ z=3062 \end{gathered}

Now that we have the value of z we plug it in the first two equations to find x and y:

\begin{gathered} x=3062+136=3198 \\ y=3062+117=3179 \end{gathered}

Therefore, car X weighs 3198 pound, car Y weighs 3179 pounds and car Z weighs 3062 pounds.

4 0
1 year ago
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