I’m not understanding this question at all. WILL GIVE BRAINLY!! (6 is not the answer)
Answers
Answer:
-8.
Step-by-step explanation:
Substitute BC with the -4 and 2, as you were given those values to substitute with B and C. Multiply those two values. You get -8.
Related Questions
Ryan went to the store to buy some apples. The price per pound of the apples is $4.25
per pound and he has a coupon for $2 off the final amount. With the coupon, how
much would Ryan have to pay to buy 5 pounds of apples? Also, write an expression
for the cost to buy p pounds of apples, assuming at least one pound is purchased.
Answers
Answer:19.25
4.25p-2
Step-by-step explanation:
It is recommended that pregnant women over eighteen years old get 85 milligrams of vitamin C each day. A doctor is concerned that her pregnant patients are not getting enough vitamin C. So, she collects data on 45 of her patients and finds that the mean vitamin intake of these 45 patients is 81 milligrams per day with a standard deviation of 12 milligrams per day. Based on a level of significance of α = .02, test the hypothesis.H0 : u = 85H1 : u< 85n = 45sample mean = 81σ = 12z based on α = .02 = -2.05 ( if lessthan -2.05 we will reject the null hypothesis)Sample standard deviation = 12/√45 = 1.789z= x-u/σ(o sample) - 81-85/1.789 = -2.236-2.236is less than -2.05 so wereject the H0 : u = 85
Answers
Answer:
|Z| = 2.237 < 2.32 at 0.02 level of significance
Null hypothesis is accepted
Recommended that pregnant women not over eighteen years old get 85 milligrams of vitamin C each day
Step-by-step explanation:
Step(i):-
Given sample size 'n' = 45
Mean of the Population 'μ' = 85
Mean of the sample 'x⁻' = 81
Standard deviation of the sample 'σ' = 12 milligrams
Null Hypothesis: H₀:μ=85
Alternative Hypothesis: H₁:μ≠ 85
Step(ii):-
Test statistic
[tex]Z = \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }[/tex]
[tex]Z = \frac{81 -85}{\frac{12}{\sqrt{45} } }[/tex]
Z = -2.237
Level of significance = 0.02
Z₀.₀₂ = 2.32
|Z| = 2.237 < 2.32 at 0.02 level of significance
Conclusion:-
Null hypothesis is accepted
Recommended that pregnant women not over eighteen years old get 85 milligrams of vitamin C each day
ILL GIVE YOU BRAINLIST !!! SHOW WORK
Answers
Answer:
The answer is
15Step-by-step explanation:
[tex]w(t) = - 2t + 1[/tex]
To find w(- 7) substitute the value of t that's - 7 into w(t) that's for every t in w(t) replace it with - 7
That's
[tex]w( - 7) = - 2( - 7) + 1 \\ = 14 + 1[/tex]
We have the final answer as
15Hope this helps you
Answer:
w=15
Step-by-step explanation:
w(t)=−2t+1
w(−7)=−2(−7)+1
=14+1
=15
Find the dimensions of a triangle given the base, height, and area. b=8 inches h=7 inches A=28 square inches
Answers
Answer:
Step-by-step explanation:
The area of a triangle of base 8 in, and height 7 in, is
A = (1/2)(base)(height) = (1/2)(8 in)(7 in) = 28 in^2. This matches the given 28th in^2.
Express the following vector in the form v=v1i+v2j+v3k. 3u - v if u=(4,7,-3) and v=(2,-7,5).3u - v = ____ i + ____ j + _____ k.(Simplify your answers.)
Answers
Answer:
5i+14j-7kStep-by-step explanation:
Given the vectors u = (4,7,-3) and v=(2,-7,5), both vectors are 3-dimensional in nature and can also be rewritten as;
u = 4i+7j-3k and v = 2i-7j+5k
To get 3u-v, we will substitute the given vectors into the expression;
3u-v = 3(4i+7j-3k) - (2i-7j+5k)
open the parenthesis
3u-v = 12i+21j-9k - 2i + 7j - 5k
collect like terms
3u-v = (12i - 2i) + (21j + 7j) (-9k-5k)
3u - v = 10i+28j-14k
To simplify the answer, we will divide through by 2
3u - v = 10i/2+28j/2-14k/2
3u - v = 5i+14j-7k
Hence the simplified form of the expression is 5i+14j-7k
Which property is shown below 7n=22 then n=3
Answers
Answer:
Substitution property.
Step-by-step explanation:
You have to substitute n to get the answer therefore, substitution.
1. Which inequality is true?
A.6 π > 18
B.6 π < 18
C.6 π = 18
D.18 > 6 π
Answers
Answer:
a
Step-by-step explanation:
a is the answer ..........
If h(x) = 6 - X, what is the value of (hom (10)?
Answers
Answer:
16
Step-by-step explanation:
v+8-6=10
Please help quick
Answers
Combine like terms.
v+2=10
Subtract 2 from 10.
v=8
Your team scores and -8 and -for on the first two rounds of a game how can you use addition to find your Teams total score
Answers
Answer:
-12
Step-by-step explanation:
-8-4=-12
because -×-=+
and -+-=-
why because when you add the highest number gives you the sign
What is the solution to this system:
4x+9y=28
- 4x-y=-28
Answers
Answer:
x = 7
y = 0
Step-by-step explanation:
→To solve this, you can use the elimination method. To do this, you must have one set of variables that can cancel each other out. In the problem given, we already have positive 4x and -4x, making them cancel out:
4x + 9y = 28
-4x - y = -28
__________
8y = 0
y = 0
→Plug in 0 for y, into an equation:
-4x - 0 = -28
-4x = -28
x = 7
Consider the positively charged particles seen here. The magnitude of their combined charges is represented by the vector arrow. If one charged particle is removed, what will be the result on the force field and how will it be illustrated? A) remain constant; no change in vector B) decreases by one; arrow length decreases by 1/3 C) decreases by one but arrow length remains constant D) decreases by a factor of 2; arrow changes direction
Answers
B)decreases by one; arrow length decreases by 1/3
Answer:
B)decreases by one; arrow length decreases by 1/3
Step-by-step explanation:
Hey can someone help me with this?
Answers
Answer:
m∠MON = 24°
Step-by-step explanation:
m∠LOM and m∠MON add up to 90°.
Step 1: Find x
2x + 46 + 3x - 6 = 90
5x + 40 = 90
5x = 50
x = 10
Step 2: Find m∠MON
m∠MON = 3x - 6
m∠MON = 3(10) - 6
m∠MON = 30 - 6
m∠MON = 24°
Factor.
14y2 + 70y
14y2 + 70y=
Answers
Answer:
14y(y+5)
Hope this helps!
Answer:
the answer is 14y(y+5)
Step-by-step explanation:
The perimeter of the rectangle is 48 inches. If the width of the rectangle is 11 inches what is the length?
Answers
Answer:
The length is 13 inches.
Step-by-step explanation:
Is 10 greater than 10.1
Answers
Answer:
no
Step-by-step explanation: 10.1 is .1 higher
Answer:
yes
Step-by-step explanation:
mark as me brainlist
Of the 10 contestants in a televised quiz competition, 2 were eliminated during this week's show, and 2 more will be eliminated during next week's show
How many groups of 6 remaining contestants are possible a week from now? Assume that the show airs on the same day every week.
28
210
20,160
151,200
Answers
Answer:a) 28
Step-by-step explanation:
10-2=8
8 objects currently 6 placements for next week = 28 combinations of people of who could stay or leave
Answer:
A
Step-by-step explanation:
The answer is the first one: 28 :) Have a good day everyone!
answer this for 18 points btw theres no fractions decimals just normal find th value of x
Answers
Answer:
x = 28°Step-by-step explanation:
From the question the figure above is a triangle.
The sum of angles in a triangle add up to 180°
To find the value of x add up all the angles and equate them to 180 to find the value of x
We have
50 + 2x + 3x - 10 = 180
5x + 40 = 180
5x = 180 - 40
5x = 140
Divide both sides by 5
We have the final answer as
x = 28°Hope this helps you
PIZZA CRUST Pepe’s Pizza makes 52 pizza crusts the fi rst week and 180 pizza crusts each subsequent week. Dianne’s Delicatessen makes 26 pizza crusts the fi rst week and 90 pizza crusts each subsequent week. In how many weeks will the total number of pizza crusts made by Pepe’s Pizza equal twice the total number of pizza crusts made by Dianne’s Delicatessen?
Answers
Answer:
Always.
Step-by-step explanation:
Let's write two equations.
Pepe's Pizza:
They made 52 pizza crusts the first week and 180 crusts each subsequent week. In other words, in x weeks after the first week, their total number of crusts made is modeled by the equation:
[tex]P=52+180x[/tex]
Dianne's Delicatessen:
They made 26 pizza crusts the first week and 90 crusts each subsequent week. So, in x weeks after the first week, their total number of crusts is modeled by:
[tex]D=26+90x[/tex]
And we want to find the number of weeks such that the number of crusts made by Pepe's Pizza is equivalent to twice the number of crusts made by Dianne's Delicatessen. In other words:
[tex]P=2D[/tex]
Substitute P and D for their equations:
[tex]52+180x=2(26+90x)[/tex]
Distribute the right:
[tex]52+180x=52+180x[/tex]
As we can see, the two equations turns out to be the same.
In other words, no matter what week it is (excluding the first week), the amount of crusts made by Pepe's Pizza will always be twice the crusts made by Dianne's Delicatessen.
Find the least common multiple of 4, 2, and 7
Answers
Answer:
28
Step-by-step explanation:
So we know that 2 is already a multiple of 4 so we can just find the least common multiple of 4 and 7. So we can do:
4, 8, 12, 16, 20, 24, 28
7, 14, 21, 28
So the least common multiple between 4, 2, and 7 is 28
According to the US Department of Agriculture, in 2011, the cost of raising a child from birth to eighteen years of age was approximately _____. A.$126,450 B.$54,300 C.$24,630 D.$163,440
Answers
Answer:
54,300
Step-by-step explanation:
Answer:
its D
Step-by-step explanation:
Solve the equation. Check for extraneous solutions. |x−2|=6x+8 x=_____ (Type an integer or a simplified fraction. Use a comma to separate answers as needed.)
Answers
Answer:
x= -0.857143 = -6/7
Step-by-step explanation:
Angie and Kenny play online video games. Angie buys 1 software and of game play. Kenny 2 buys software and 6 months of game play. Each software package costs $50. If their total cost is $295, what is the cost of one month of game play?
Answers
Answer:
The cost of one month of gameplay is $99.2
Step-by-step explanation:
295/6 + 50
49.2 + 50
99.2
(I rounded to the nearest tenth on multiple occasions)
Without shipping costs, a helmet costs 28.86. If Jordan paid 38.02 for the helmet, including shipping, how much did the shipping costs?
Answers
Answer:
Jordan paid $9.16 for shipping.
Step-by-step explanation:
which ordered pair would form a proportional relationship with the point graphed below
A.(-10, 30)
B.(30, -15)
C.(-30, 10)
D.(80, -30)
Answers
Answer:
d
Step-by-step explanation:
i took the test
pls help fast !!!!!????
Answers
Answer:
[tex]k=-\frac{4}{3}[/tex]
Step-by-step explanation:
[tex]-\frac{1}{2} -\frac{3}{2} = \frac{3}{2} k[/tex]
[tex]-2= \frac{3}{2} k[/tex]
[tex]-\frac{4}{3}[/tex][tex]=k[/tex]
what is the solution to : 3(1/2 m - 3) =45
Answers
Answer:
[tex]m=36[/tex]
Step-by-step explanation:
We can solve for this equation by isolating [tex]m[/tex] on one side. To do this, we can "reverse" the equation.
[tex]3(\frac{1}{2}m - 3) = 45[/tex]
Let's divide both sides by 3.
[tex]3(\frac{1}{2}m-3)\div3 = 45\div3\\\\\frac{1}{2}m - 3 = 15[/tex]
Add 3 to both sides:
[tex]\frac{1}{2}m - 3 + 3 = 15 + 3\\\\\frac{1}{2}m = 18[/tex]
Multiply both sides by two (since [tex]\frac{1}{2}\cdot2=1[/tex])
[tex]\frac{1}{2}m \cdot 2 = 18 \cdot 2\\\\m = 36[/tex]
Hope this helped!
Answer:
m = 36
Step-by-step explanation:
Step 1:
3 ( 1/2m -3 ) = 45
Step 2:
3/2m - 9 = 45
Step 3:
3/2m = 54
Step 4:
54 ÷ 3/2
Step 5:
54/1 × 2/3
Answer:
m = 36
Hope This Helps :)
what is the midpoint of 3,7 and -2,3
Answers
Answer:
(1.5) (2.2)
Step-by-step explanation:
SHOULD BE CORRECT
I HAD THAT QUESTION YESTERDAY AND MY TEACHER SAID IT WAS RIGHT ♀️
Answer:
(1/2,5)
Step-by-step explanation:
Midpoint formula is (x1+x2)/2,(y1+y2)/2
(3-2)/2 , (7+3)/2
=(1/2,5)
Might be wrong, though.
Find the product of (5/16)(-2)(-4)(-4/5)
Answers
Answer:
It's -2
(5/16)(-4/5)=(-20/80)
(-2)(-4)=(8)
(8)(-20/80)= -160/80
-160/80=-2
A certain lottery game, 32 numbers are randomly mixed and 7 are selected. A person must pick all 7 numbers to win. Order is not important. What is the probability of winning?
Answers
Answer:
Below.
Step-by-step explanation:
The number of combinations of 7 from 32 = 32! / 7! (32-7)!
= 3365856
So it is 1/ 3365856 = 0.000000297
or about 3 in 10,000,000.