1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
earnstyle [38]
3 years ago
10

Plz solve PLZ PLZ PLZ PZL

Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

B

Step-by-step explanation:

A: No, because you can't switch signs of a number to another sign unless you change the number itself.

B: Yes. It has the same numbers and signs and the result is negative (there are an odd amount of negative signs)

You might be interested in
A pole is used to support an observation platform. The top of the pole is secured by two guy wires, one 18 and the other 21 feet
Harman [31]
Let A be the point on the ground to with the 18 foot guy is anchored and D the point on the ground to with the 21 foot guy is anchored.

We can conclude that the <span>the two wires at the points where they are anchored are 21 feet apart. Check the procedures in the picture attached.</span>

5 0
3 years ago
2. Suppose the temperature that most foods can stay bacteria free in restaurants varies approximately according to a normal dist
vagabundo [1.1K]

Answer:

28.4

Step-by-step explanation:

Given that:

Mean, m = 31.3

Standard deviation, s = 2.8

Since, data is normally distributed :

P(x < 0.15) gives a Z value of - 1.036

Using the Zscore formula :

Z = (x - mean) / standard deviation

-1.036 = (x - 31.3) / 2.8

-1.036 * 2.8 = x - 31.3

-2.9008 = x - 31.3

-2.9008 + 31.3 = x

28.3992 = x

The temperature which correlates to the bottom 15% of the distribution is 28.4

7 0
3 years ago
Confused on this part
Andre45 [30]

Answer:

The first 2 and the last one

Step-by-step explanation:

You need to have an input per output, and to choose one or multiple the need to have a continuous pattern. Ex.+5 ad -2 on both sides every time would be a linear function.  

6 0
2 years ago
Elimination/subtraction
denpristay [2]

Answer:

x = 0, y = 7

Step-by-step explanation:

Solving a system of equations using substitution requires one side to be equal to a variable present in the equation, in this case x or y. We should simplify the equation using elimination before substituting to reduce the chance of error.

In order to use the elimination method, you have to create variables that have the same coefficient—then you can eliminate them. These equations arew already aligned for us.

                  3x - 10y=-70

             -<u>   4x +9y = 63</u>

                  -x + y = 7

Now, for substitution, the equation must be set to a variable.

                  -x + y = 7

                  y = x + 7

Next, plug the equation in where applicable in another equation.

                  4x +9(x + 7) = 63

                  4x + 9x + 63 = 63

                  13x = 0

                  x = 0

The final step of substitution is to plug the known variable into an equation to find the other variable.

                  3(0) - 10y=-70

                  0 - 10y = -70

                  10y = 70

                  y = 7

I guarantee you this answer is correct, I worked it out using other methods and graphing prior to submitting this answer.

8 0
3 years ago
Read 2 more answers
Given f(x) = 10 - 16/x, find all c in the interval [2,8] that satisfy the mean value theorem
Katen [24]
F(x)=10-16/x
f'(x)=16/x^2
f'(c)=16/c^2
f(8)=10-16/8=10-2=8
f(2)=10-16/2=10-8=2
f'(c)= \frac{f(b)-f(a)}{b-a} in (2,8),&#10; \frac{16}{c^2} = \frac{f(8)-f(2)}{8-2} ,&#10; \frac{16}{c^2} = \frac{8-2}{8-2}&#10;
4∈[2,8] is the required point.
8 0
4 years ago
Read 2 more answers
Other questions:
  • HELP!!! Picture included :).
    10·1 answer
  • The average price of gasoline in Paris, France, is 1.91 euros per liter. If there are 3.785 liters in one gallon, and the exchan
    5·1 answer
  • In an article in Marketing Science, Silk and Berndt investigate the output of advertising agencies. They describe ad agency outp
    8·1 answer
  • When the point (-3,7) is dilated with the center of dilation at the origin, then the image of
    7·2 answers
  • Here’s a graph of linear function. Write the equation that describes that function.
    9·1 answer
  • Show all of your work. Simplify the expression: - 3a + 7 + 5a​
    6·2 answers
  • Translate: Six more than the product of two numbers.
    9·2 answers
  • The intersection of two planes contains at least two points
    13·1 answer
  • 4x+2y=18<br> 2x+3y=15<br> solution of the system?
    8·1 answer
  • Ericka is also in Mr. Whittaker’s science class and she recorded the variation in water level at a different part of the river.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!