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
labwork [276]
2 years ago
7

Evaluate |-11| + |-7|. -18 -4 4 18

Mathematics
1 answer:
Marta_Voda [28]2 years ago
4 0

Answer:  D) 18

======================================================

Explanation:

|-11| simplifies to 11

|-7| simplifies to 7

Whatever is inside the absolute value, you just remove the negative and that's the result of that absolute value expression. It represents the distance on a number line. So for instance -11 is 11 units from 0, which is why |-11| = 11.

Overall,

|-11| + |-7| = 11 + 7 = 18

You might be interested in
What is the factorization of the trinomial below? -X^2 - 2x + 48
raketka [301]

Answer:

<h3><em><u>I</u></em><em><u> </u></em><em><u>think</u></em><em><u> </u></em><em><u>option</u></em><em><u> </u></em><em><u>C</u></em><em><u>.</u></em></h3>

<em><u>(</u></em><em><u>x-6</u></em><em><u>)</u></em><em><u> </u></em><em><u>(</u></em><em><u>x-8</u></em><em><u>)</u></em><em><u>.</u></em>

3 0
2 years ago
Read 2 more answers
PLSSS HELP IF YOU TURLY KNOW THISS
Ymorist [56]

Answer:

B

Step-by-step explanation:

3 out of 10 is smaller than 3 out of 5

4 0
2 years ago
Read 2 more answers
The length of an object's shadow varies directly with It's heigt. If a can is 13 cm tall casts a shadow that is 7.5 cm long, a b
svetoff [14.1K]
X = Can/Bottle height, y = Shadow length
x = 13 cm, y = 7.5 cm
x = 2.5 cm, y = 14.2 cm
I'm assuming your question is asking for an equation to model this. Since there are only two data points the only equation that can be made is linear
y = mx + c
m = (y2 - y1)/(x2 - x1) <- Let 14.2 be y2, and 2.5 be x2 (it is important)
m = (14.2 - 7.5)/(2.5 - 13)
m = 6.7/-10.5
m = -0.638
y = -0.638x + c
To find c we can sub any one of the two coordinates, 
i'm choosing (2.5,14.2)
14.2 = -0.638(2.5) + c
14.2 = -1.595 + c
14.2 + 1.595 = c
15.795 = c
So the final equation is y = -0.638x + 15.795
6 0
3 years ago
100 points, I need help fast!
ivolga24 [154]

a. The standard error is equal to the standard deviation divided by the square root of the sample size:

SE = (23 ppm)/√18 ≈ 5.42 ppm

b. The t statistic is given by the difference between the true and sample means, divided by the standard error:

t = (192 ppm - 180 ppm)/SE ≈ 2.21

c. The p-value is approximately 0.0204.

d. Since p < 0.05, the difference is significantly different, so we reject the null hypothesis.

e. A type I error might have occurred, since it's possible that the null hypothesis was true, but we ended up rejecting it.

4 0
2 years ago
Which of the following is true for the interval from 3-5 seconds
kondaur [170]

Answer:

Option C

Step-by-step explanation:

The given function is: h(t)=-16t^2+80t+108.

h(5)=-16(5)^2+80(5)+108=108.

h(3)=-16(3)^2+80(3)+108=204.

The average rate of change of this function on the interval t=3 to t=5 is given by:

\frac{h(5)-h(3)}{5-3}

\frac{204-108}{2}=-48

Since the average rate of change is negative on the interval 3-5 seconds, it means the ball is moving downwards at an average rate of 48 feet per second.

The correct choice is C.

6 0
3 years ago
Other questions:
  • Use the proportion to convert milligrams to grams.
    15·2 answers
  • A circular flower bed in a botanical garden has a radius of 4 feet. What is the area of the flower bed? Use 3.14 for π . Enter y
    14·1 answer
  • 2) Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95. How m
    10·1 answer
  • The table below shows data for a class's mid-term and final exams:
    5·2 answers
  • Can someone pls help me with this
    10·1 answer
  • Sammie has 3 times as many goldfish as Nora. Nora has 4 goldfish.
    11·2 answers
  • What is the answer?​
    9·1 answer
  • Can you please help me I have a test tomorrow
    6·1 answer
  • Can someone please help me
    5·1 answer
  • What is the distance from X to Y?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!