Answer:
93
Step-by-step explanation:
Given that:
Brittany's Zscore = 1.8
Mean score (m) = 75
Standard deviation (s) = 10
Brittany's score (x) =?
Using the Zscore formula :
Zscore = (x - m) / s
1.8 = (x - 75) / 10
18 = x - 75
18 + 75 = x
93 = x
Hence, Brittany's score is 93
PLEASE HELP WILL GIVE BRAINLIEST!! If K is the midpoint of JL, JK=9x-1, and KL=2x+27, find JL.
A. 35
B. 70
C. 62
D. 48
Answer:
A, 35
Step-by-step explanation:
9x - 1 = 2x + 27
7x - 1 = 27
7x = 28
7x/7 = 28/7
x = 4
and now we plug it in,
9x - 1
9(4) - 1
36 - 1
35
and for the second point,
2x+27
2(4)+27
8+27
35
Hope this helps. Sorry this is a late response.
what is a equation of the line that passes through the point (−5,7) and is parallel to the line x+5y=10
Answer:
do seventh to the 6th power then u will get ur answer
Step-by-step
ive did the test
Help me with this please
Answer:
B
Step-by-step explanation:
Every time X increases by 1, Y increases by 2 which is consistent
Is this correct need help ASAP!!
At 8am, there was no snow on the ground. At noon, there were 8 inches of snow
on the ground. How much snow fell per hour?
Answer:
2 inches of snow
Step-by-step explanation:
noon is 12:00
12-8=4
8/4= 2
2 inches of snow fell per hour
Hope this helps. Have a nice day.
I NEED HELP PLZZZZZ HELP MEEEEEE!!!! Asha feels she needs $45,000 per year in retirement. If she receives $30,000 a year from Social Security, at what interest rate must Asha invest her $250,000 of savings for her total income to be at least $45,000 per year?
a.)at least 6% interest
b.)at least 17% interest
c.)at least 18% interest
d.)at least 30% interest
Please answer this question
help. im non-intelligent for ths
Answer:
Don't quote me on this, but I think that the answer is C.
HELP ME WITH THIS EQUATION! 8 = x + 1 *
Answer:
7 or -9
Step-by-step explanation:
7 + 1 = 8
-9 + 1 = 8
Answer:
7
Step-by-step explanation:
x + 1 = 8 {Subtract 1 form both sides}
x + 1 - 1 = 8 -1
x = 7
PLEASE HELP ILL GIVE U BRAINLIEST!
Answer:
part a) 112/350 = x/100
Step-by-step explanation:
part b) the answer is 32%
a+46=-114
plz show how u got the answer
Answer:
a = 160
Step-by-step explanation:
a + 46 = -114
a + 46 - 46 = -114 - 46
a = 160
An economic model predicts that the supply, s, and the demand, d, for a new product can be estimated using the lines on the graph below.
Based on this graph, what number of items must be sold in order for the supply and demand to be equal?
Answer:
the answer is 3
Step-by-step explanation:
There are 3 number of items must be sold in order for the supply and demand to be equal.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
An economic model predicts that the supply, s, and the demand, d, for a new product can be estimated using the lines on the graph.
Now,
In the graph, The two line intersect at a point (3, 48).
So, We can say that;
There are 3 number of items must be sold in order for the supply and demand to be equal.
Thus, There are 3 number of items must be sold in order for the supply and demand to be equal.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
please help me please will give brainliest
show all your work thank you
Answer:
Perimeter: 52 Area: 181-16i?
Step-by-step explanation:
Perimeter
The formula for perimeter is 2l+2w, so you plug in the binomials they give you:
2(11-4i)+2(15+4i)
expand:
22-8i+30+8i
combine like terms (which cancels out 8i and -8i):
22+30=52
Area
"i" is not a real number and thus should not be part of the area here, meaning this answer as it is is wrong and I don't know how one would change that.
Here's what I did to get 181-16i, in any case:
The formula for area is l*w, so I plugged in the numbers:
(11-4i)(15+4i)
expanded:
165+44i-60i-16i*i
and combined like terms:
181-16i
*i is [tex]\sqrt{-1}[/tex], so [tex]i^{2}[/tex]=-1 and -1*-16=16.
Maria and Liam work in a banquet he’ll. Maria earns a 20% commission on her food sales. Liam earns a weekly salary of $625 plus a 10% commission on his food sales. What amount of food sales will result in Maria and Liam earning the same amount of the week?
What does the slope tell us to do in this equation? y =-4/11x +6
Answer:
the slope tells you that the line will be a negative slope
If a coin has been flipped five times and it’s all tails, will the next one be heads?
Please use mathematic sentences and explain why.
Answer:
Not necessarily. The next flip has a 50/50 chance of landing on heads, just as the other ones.
Step-by-step explanation:
The soccer team is planning to sell health bars for a fundraiser. The prices of purchasing health bars from two different companies are represented by the system of equations shown, where x is the number of bars purchased and y is the total cost in dollars. Company A: y=0.75x Company B: y=10+0.50x How many bars would the team need to purchase from each company in order for the total cost to be equal?
Answer:
40 bars
Step-by-step explanation:
Where x = Number of bars purchased by each team
We solve this question by equating both Equations from Company A to Company B
Company A = Company B
0.75x = 10 + 0.50x
Collect like terms
0.75x - 0.50x = 10
0.25x = 10
x = 10/0.25
x = 40 bars
Hence, each team need to purchase 40 bars from each company
Answer:
Step-by-step explanation:
40
1/3b - 3 = 3
what is b
Answer:
b=18
Step-by-step explanation:
1/3b -3=3
1/3b-3+3=3+3
1/3b= 6
isolate b
1/3 *3 b= 6 *3
b=18
What is a expression
an expression is a combination of symbols and numbers that is well-formed according to rules that depend on the context :)
Solve 7x=56 what is x?
Answer:
8
Step-by-step explanation:
X=56÷7=8
By moving 7 to other side
And change the sign to divide
Becz if it multiplication it will change to divide and if plus it will change it sign to negative
The value of x in the equation 7x = 56 is 8.
To solve the equation 7x = 56 for x, we can isolate x by dividing both sides of the equation by 7.
7x/7 = 56/7
Simplifying:
x = 8
Therefore, x is equal to 8.
To know more about equation, refer here:
https://brainly.com/question/33867719
#SPJ6
Whoever answers gets brainly
Answer:
The function y = 5 [tex](.98)^{x}[/tex] represents exponential decay
The percentage rate of change is 2%
Step-by-step explanation:
The formula of the exponential growth is y = a [tex](1+r)^{x}[/tex], where
a is the initial valuer is the rate of increase in decimal ⇒ (1 + r) > 1The formula of the exponential decay is y = a [tex](1-r)^{x}[/tex], where
a is the initial valuer is the rate of decrease in decimal ⇒ (1 - r) < 1Let us solve the question.
∵ y = 5 [tex](.98)^{x}[/tex]
→ Compare it with the forms above
∴ a = 5
∵ The rate of change is .98
∵ .98 < 1
→ That means the rate of change is decreasing
∴ The function y = 5 [tex](.98)^{x}[/tex] represents exponential decay
→ From the 2nd form above
∵ (1 - r ) = .98
→ Subtract 1 from both sides
∴ 1 - 1 - r = .98 - 1
∴ - r = - .02
→ Divide both sides by -1
∴ r = .02
→ Multiply it by 100% to change it to a percentage
∵ .02 × 100% = 2%
∴ r = 2%
∴ The percentage rate of change is 2%
find the area please
Answer:525 to find area multpi all sides
Step-by-step explanation: can i have brainlst since i helped you
Answer: d.
Step-by-step explanation: 7x15= 105x5= 525
To determine which side of a linear inequality to shade in for its graph, you should pick a point on one side of the dashed or solid line and plug its coordinates into the original inequality. If the coordinates satisfy the inequality, you should shade in that half of the plane. A. True B. False
Answer:
False
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
....................
50 points
From the graph of the function, determine the domain and the range.
Domain: [–4, 4] Range: [0, 4]
Domain: [0, 4] Range: [0, 4]
Domain: [0, 4] Range: [–4, 4]
Domain: (–4, 4) Range: (0, 4)
Answer:
Domain: [–4, 4] Range: [0, 4]
Step-by-step explanation:
Since the circles are closed that means the value will be in brackets.
We see how the graph goes from -4 to 4 in the x axis indicating that the domain will be [-4, 4]
Grace earns $12 per hour. Phillip's earnings can be represented by the equation y = 10x where x is the number of hours worked and y represents the total amount earned. Who earns more? *
Answer:
Grace earns more. Her equation would be y = 12x, while Phillip's equation is y = 10x. Grace earns $2 more per hour.
Step-by-step explanation:
I sell video games, clothes, sneakers, and more. Check me out. h t t p s : / / w w w . m e r c a r i . c o m / u / 6 4 6 4 5 4 8 0 6
Answer: y=120
Step-by-step explanation:
Express in the form 1:n the ratio 56:7 give your answer as a decimal
Answer:
decimal 8
Step-by-step explanation:
Step 1 :Rewrite the ratio as a fraction 56:7=56/7
Step 2: Divide the number by the denominator
56/7= 56/7
56/7=8
Slope:
what is the slope?
Answer: -2
Step-by-step explanation:
So basically I located the y-intercept first. Where is that? At the point (0,-2). Now from there, I found the nearest point on an intersecting grid line, in this case it would be (-1,0). So from the y-intercept, I looked at how many spaces I would have to move to get to (-1,0). You would have to go up 2 spaces and to the left 1 space. This is also written as 2/-1. Simplify this and you get -2! Hope this helped!
Answer:
the slope is -2
Step-by-step explanation:
To find the slope you use rise over run, rise/run. The rise is -8 and the run is 4, 4/-8=-2.
What’s the value of (-0.001)(100)(-0.01)(-10)
The value of the expression is -0.01
What is a decimal number?'In algebra, a decimal number can be defined as a number whose whole number part and the fractional part is separated by a decimal point.'
According to the given problem,
⇒ [tex]-\frac{1}{1000} *100*(-\frac{1}{100} )*(-10)[/tex]
⇒ -0.01
Hence, we can conclude, the value of the expression is -0.01.
Learn more about decimals here: https://brainly.com/question/10354322
#SPJ2
(Dont answer if you dont want alot of notifs)
If Logx (1 / 8) = - 3 / 2, then x is equal to
A. - 4
B. 4
C. 1 / 4
D. 10
Answer:
According to my problem solving, the answer should be B. 4
Step-by-step explanation: it might be wrong but worth a shot
Lance has 12 boxes of comic books. Each box has 40 comic books in it.
How many comic books does Lance have?
Answer:
480
Step-by-step explanation:
12*4=48 then add a zero to the end of it
hope that helps!
happy new year!
Answer:
Lance has 480 comic books.
Step-by-step explanation:
Multiply 12 by 40:)
