Answer:
A = 3E
A + E = 56
3E + E = 56
4E = 56
E = 14
Elga is 14 years old.
Step-by-step explanation:
Could you please mark me as the brainliest answer
Answer:
Step-by-step explanation:
17.33
Change 5 - 2 into an addition problem using a change in sign and the additive inverse.
(Step 1: change the minus sign to a plus sign. Step 2: change the second number in the
problem to its opposite (additive inverse].)
9514 1404 393
Answer:
5 + (-2)
Step-by-step explanation:
starting with: 5 - 2
step 1: 5 + ( )
step 2: 5 + (-2)
−p^3 −5p−9
Select all coefficients.
Answer:
k
Step-by-step explanation:
k
A scientist is studying the effects of cell phone use on headache rate. She identifies 30 people who use cell phones and 30 who do not. Each of the 60 people is given a questionnaire designed to determine headache frequency. None of the 60 people who participated in the study knew they were part of a study. Which statement is true?
Answer:
C this is a double blind study.
Step-by-step explanation:
Both groups in the experiment are blind (don't know they are in an experiment). If this answer is incorrect then its A.
Answer:
observational study
Step-by-step explanation:
the experimenters are not blind to their own tests.
Hurry i need help!!!!!
Answer:
Sorry i would help but the paper is unclear
Step-by-step explanation:
In △BCD, H is the centroid. If HF=6 find BF.
Answer:
18
Step-by-step explanation:
The centroid of a triangle is located ⅓ of the distance from each side to the opposite vertex
So HF=⅓BF
So BF=3xHF=3x6=18
chris can type 490 words in 7 minutes how many word can he type per minute
Answer:
i think 70 words per minute
Step-by-step explanation:
Gabriella invested $73,000 in an account paying an interest rate of 3%
compounded continuously. Mila invested $73,000 in an account paying an interest
rate of 3% compounded quarterly. After 5 years, how much more money would
Gabriella have in her account than Mila, to the nearest dollar?
Answer:
Gabriella will make $61 more than Mila after 5 years
Step-by-step explanation:
Gabriella Data
Principal Amount P= $73,000
Rate r = 3% or 0.03
Compounded continuously
Time t = 5 years
The formula used is: [tex]A=Pe^{rt}[/tex]
Putting values and finding A
[tex]A=Pe^{rt}\\A=73000e^{0.03*5}\\A=73000e^{015}\\A=84813.899\\A\approx84814[/tex]
So, After 5 years Gabriella will have $84814
Mila Data:
Principal Amount P= $73,000
Rate r = 3% or 0.03
Compounded quarterly n = 4
Time t = 5 years
The formula used is:[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
Putting values and finding A
[tex]A=P(1+\frac{r}{n})^{nt}\\A=73000(1+\frac{0.03}{4})^{4*5}\\A= 73000(1+0.0075)^{20}\\A= 73000(1.0075)^{20}\\A=73000(1.161)\\A=84753[/tex]
So, After 5 years Mila will have $84753
Now subtracting to find the difference 84814-84753 = 61
So, Gabriella will make $61 more than Mila after 5 years
Archaeologists are studying a shipwreck on the
ocean floor. The wreck site is roughly shaped like a
parallelogram. The archaeologists make a map of the
site in the coordinate plane. Each unit on the map
represents 1 m. According to the map, what is the
area of the wreck site?
The area of the wreck site is 85 square m if Archaeologists are studying a shipwreck on the ocean floor.
What is parallelogram?
In two-dimensional geometry, it is a plane shape having four sides, in which two pairs of sides are parallel to each other and equal in length. The sum of all angles in a parallelogram is 360°.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have:
Archaeologists are studying a shipwreck on the ocean floor. The wreck site is roughly shaped like a parallelogram.
From the table:
The vertex of the P is (9, 2)
The vertex of the Q is (-8, 2)
The vertex of the R is (-7, 7)
The vertex of the S is unknown
From the distance formula we can find the distance between points P and Q:
The distance formula can be defined as the formula for finding the distance between two points. It has given the shortest path distance between two points.
The distance formula can be given as:
[tex]\rm d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]\rm PQ = \sqrt{(-8-(-9))^2+(2-2)^2}[/tex]
PQ = 17 units
[tex]\rm QR = \sqrt{(-7-(-8))^2+(7-2)^2}[/tex]
QR = 5.09 ≈ 5 units
The area of the wreck site = 17x5
The area of the wreck site = 85 square m
Thus, the area of the wreck site is 85 square m if Archaeologists are studying a shipwreck on the ocean floor.
Learn more about the parallelogram here:
brainly.com/question/1563728
#SPJ2
PLEASEEEEEEEEEE ANSWER QUICK WILL GIVE BRAINLIST
Answer:
102
Step-by-step explanation:
1.2*85=102
Answer:
Step-by-step explanation:
A.85 pizzas * 20%= 17 additional pizzas for total of 102 pizzas
B. If you are using the 102 pizzas:
65/102= 63.73% of the 102 pizzas so a decrease.
If you are going by the 85 pizzas:
65/85= 74.47% decrease from original 65 pizza
Draw a number line model to determine -16 + -0.7
Answer:
the answer is -16.7
Step-by-step explanation:
i did the math 16 + .7 =-6.7 answer -16.7
Consider the triangle.
The measures of the angles of the triangle are 32°, 53°, 95°. Based on the side lengths, what are the measures of each angle?
A)mAngleA = 95°, mAngleB = 53°, mAngleC = 32°
B)mAngleA = 32°, mAngleB = 53°, mAngleC = 95°
C)mAngleA = 43°, mAngleB = 32°, mAngleC = 95°
D)mAngleA = 53°, mAngleB = 95°, mAngleC = 32°
(Make sure to explain how you solved this problem and include things to remember when measuring angles like this. Thank you!)
Answer:
b
Step-by-step explanation:
edge 2020
60 is 25% of what number
12 is 24% of what number
What is the slope through
the points (1,-2) and (2,-2)?
Answer: 0
Step-by-step explanation:
Plzzzzz help asappppppp
help please
3/11 × 4/9 =
Answer:
4/33
Step-by-step explanation:
Multiply 3x4 across which equals 12
Multiply 11x9 across which equals 99
Simplify to equal 4/33
Hope this helps!! :)
Answer:
Exact Form:
433
Decimal Form:
0.¯¯12¯¯
Step-by-step explanation:
-2x + 4>8 which number line shows the solution to the inequality
Answer:
The answer is D since it equals
x < -2
Answer:
Dw I gotchu. It's D because it' the most reasonable for this problem.
The ordered pairs in the table below define a function.
X Y
-2 9
0 5
2 1
4 -3
Select ALL of the equations that describe a function that is less steep than the function defined in the table.
⭕️ Y= 5
⭕️ Y = -3x
⭕️ Y = -x+6
⭕️ Y= -6x+3
⭕️ Y = -1/2x-4
Answer:
The 1st, the 4th, and the 5th ones are the answer :)
Step-by-step explanation:
PLs, help me - an international company has 18,700 employees in one country. If this represents 32.8% of the company's employees, how many employees does it have in total? Round your answer to the nearest whole number.
Answer:
33.6% of X = 26800
X = 26800 / 33.6%
= 26800 / 0.336
= 79762
Note the answer is rounded
Step-by-step explanation:
33.6% of X = 26800
X = 26800 / 33.6%
= 26800 / 0.336
= 79762
Note the answer is rounded
find the factor 12n-18
Answer:
Hope this helps!!!
Step-by-step explanation:
6(2−3)
Answer:
6(2n - 3)
Step-by-step explanation:
what is the difference of (5,-4) (3,-11)
Answer:
-8
Step-by-step explanation:
I need help asparagus is it a b c d please help me
Answer:
A
Step-by-step explanation:
At a lightbulb manufacturing plant, 2% of the lightbulbs are found defective. If the plant had 56 defective lightbulbs on a certain day, how many did it manufacture that day?
Answer:
2800 lightbulbs
Step-by-step explanation:
Divide 56 by 2% to cancel out the multiplication used to find the amount of defective lightbulbs.
∠1 and ∠2 are a linear pair. If the m∠2 = 33°, find the m∠1.
Answer:
157 degrees
Step-by-step explanation:
A linear pair is 180 degrees.
180-33 = 157
Answer:
m∠1 = 147°
Step-by-step explanation:
Since both angles are a linear pair, they both add up to 180°. This means that if m∠2 = 33°, then m∠1 would be 180°-33° which is 147°.
180°-33°=147°
6 1 message Noah's dog eats 8 ounces of dog food each day. Noah bought a 28-pound bag of dog food. How many 8-ounce servings are in a 28-pound bag of dog food?
- 1/2(6p+16)=7 solve for p
Answer:
p = -5
Step-by-step explanation:
-1/2* 6 = -3p
-1/2*16 = -8
-3p-8 = 7
7+8 = 15
-3p=15
15/-3 = -5
Step-by-step explanation:
p
2
+6p−16
=p
2
+8p−2p−16
=p(p+8)−2(p+8)
=(p+8)(p−2)
Divide: StartFraction 5 Over 8 EndFraction divided by three-fourths One-eighth StartFraction 5 Over 6 EndFraction Three-fourths 1 and one-half
Answer:
the answer is 5 over 6
Step-by-step explanation:
well, you Start the Fraction with 5 Over 8 and End the Fraction divide by three-fourths One-eighth Start the next Fraction 5 Over 6 and End the Fraction Three-fourths 1 and one-half and the answer is 5/6
X^3-4x^2+3x+2=0 find all the real values of x
Step-by-step explanation:
The factor of the polynomial is (x-2)
We know that dividing a third degree polynomial by a first degree factor will yield a quadratic of the form ax²+bx+c and possibly a remainder r,except that in this case r=0 since x-2 is a factor
We therefore equate
x³-4x²+3x+2=(x-2)(ax²+bx+c)+r
x³-4x²+3x+2=ax³+bx²+cx-2ax²-2bx-2c+r
We group terms on the RHS
x³-4x²+3x+2=ax³+x²(b-2a)+x(c-2b)-2c+r
By equating the terms on both sides,
ax³=x³,a=1
Next,
b-2a=-4
b-2(1)=-4
b-2=-4
b=-4+2
b=-2
Next,
c-2b=3
c-2(-2)=3
c+4=3
c=-1
Now we piece together our quotient quadratic using a=1,b=-2,c=-1 to obtain x²-2x-1
We now find the zeros of x²-2x-1
which are 1+√2 and 1-√2
The values of x are therefore 2,1+√2, and 1-√2
Note that I used this method in lieu of the famous polynomial division approach to teach someone also ;)
Answer:
2, 1 +/- sqrt2
or 2, 2.414, -0.414 (correct to the nearest thousandth).
Step-by-step explanation:
Let x = 2: then
f(2) = 8 - 16 + 6 + 2 = 0
So x = 2 is one of the zeros.
So one factor of the function is x-2.
If we divide the function by (x - 2) we get:
x-2)X^3-4x^2+3x+2(x^2-2x-1
x^3- 2x^2
-2x^2+3x
-2x^2+4x
-x+2
-x+2
.......
So x^2-2x-1= 0
x = [-(-2 +/- sqrt(4 - 4*-1)] / 2
x = (2 +/- sqrt8) / 2
= 1 +/-sqrt8/2
= 1 +/- sqrt2
There are 5,000 sheets of paper in 25 boxes. if each
box contains the same number of sheets of paper, how many sheets of paper are in each box?
Answer:
200 sheets
Step-by-step explanation:
Divide 5,000 by 25 to get 200 sheets of paper per box.
Answer:
750 pieces of paper
Step-by-step explanation:
can't
Find the opposite of each integer 0
Answer:
Thats not a full question.
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
DEPERATE PLZ HELP IM ON A TIMED TEST
write the slope intercept form of the line that passes through the two points given (-1,-8) (2,10)
Answer:
y = 6x - 2
Step-by-step explanation:
Let the equation of the line be y = mx + c
m = (10 - (-8))/(2 - (-1)) = 6
sub (2, 10):
10 = 6(2) + c
c = -2
therefore, the equation of the line is y = 6x - 2
This is a question on coordinate geometry/graphs. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)