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
Oxana [17]
3 years ago
14

Please help !! 25 points !!!

Mathematics
1 answer:
EastWind [94]3 years ago
8 0

Answer:

30

Step-by-step explanation:

70-40=30

You might be interested in
What is the decay factor of the exponential function<br> represented by the table?
bulgar [2K]

Given:

The table of values of an exponential function.

To find:

The decay factor of the exponential function.

Solution:

The general form of an exponential function is:

y=ab^x              ...(i)

Where, a is the initial value and 0 is the decay factor and b>1 is the growth factor.

The exponential function passes through the point (0,6). Substituting x=0,y=6 in (i), we get

6=ab^0

6=a(1)

6=a

The exponential function passes through the point (1,2). Substituting x=1,y=2,a=6 in (i), we get

2=6(b)^1

2=6b

\dfrac{2}{6}=b

\dfrac{1}{3}=b

Here, b=\dfrac{1}{3} lies between 0 and 1. Therefore, the decay factor of the given exponential function is \dfrac{1}{3}.

Hence, the correct option is A.

8 0
3 years ago
Can someone help with number 13 ?<br><br> I will give a brainly !!
Lostsunrise [7]
This picture should help, i graphed it for you! : )

5 0
2 years ago
12w + 19 = 2w + 19 solve plz
Degger [83]

Answer:

w = 0

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
8th grade math<br>m&lt;T=<br>m&lt;F=<br><br>pls explain I have no clue what I'm doing​
pishuonlain [190]

180

-90

--------

90

-----

2

=

45

both are 45 degrees.

3 0
2 years ago
A student earned grades of 79, 74, and 73 on her three regular exams. She earned a grade of 66 on the final exam and 88 on her c
navik [9.2K]

Answer:

The weighted mean grade is 78.62                    

Step-by-step explanation:

We are given the following in the question:

Regular exam score = 79, 74, and 73

Weightage of regular exam = 12%

Final exam grade = 66

Weightage of final exams = 17%

Course project grade = 88

Weightage of project = 10%

Homework grade = 93

Weightage of homework = 37%

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean of regular exam scores =

Mean =\displaystyle\frac{226}{3} = 75.33

Weighted mean grade

w = \dfrac{\sum wx}{\sum w}

\displaystyle\sum wx =\displaystyle\frac{12}{100}\times 75.33 + \frac{17}{100}\times 66 + \frac{10}{100}\times 88 + \frac{33}{100}\times 93\\\\\displaystyle\sum wx = 59.75\\\\\sum w = 0.12 + 0.17 + 0.10 + 0.37 = 0.76\\\\w = \frac{59.75}{0.76} = 78.62

The weighted mean grade is 78.62            

8 0
3 years ago
Other questions:
  • How do you solve this equation?
    13·1 answer
  • How many 3 digit palindromes are divisible by 9?
    11·1 answer
  • Find the area of a square with side a when a is equal to the following values. Are the area of a square and the length of its si
    14·2 answers
  • The mass of a grain of sand is about 10^-3 gram. About how many grains of sand are in the bag of sand?
    8·1 answer
  • Erik buys carrots and dip for a class snack. The carrots are $3.80, and the dip is$2.60. Erik has a coupon for 5% off his grocer
    11·2 answers
  • Find the discrimanant and the number of real roots for this equation 9x^2+12x+4=0
    5·1 answer
  • Jeraldo works for a homeless shelter. He paid $450 for bed frames and needed to buy 32 beds. What's the most he can spend per be
    12·1 answer
  • Factor completely: 80x2 – 125
    11·2 answers
  • The figure is a parallelogram.one diagonal measures 28 units. Is the figure a rectangle? Explain
    13·1 answer
  • What is the length of AB?<br> O A. 9<br> O B. 18<br> O C. 48<br> D. 6
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!