Answer:
70.574
Step-by-step explanation:
7.1 × 9.94= A
9.94
7.1
-------
70.574
A= 70.574
(when multiplying decimals do not line up the dot and solve it as if there was no decimals point. when you get your answer count the amount of digits on the right side of the number going to the left on your answer.
in this case there are three digits on the right side of the decimals you count three spaces to the left of your answer wich is 574. put the decimal point infront of the 5 and you get you answer. 70.574
[tex] \sqrt[43]{5} [/tex]
Which of the following statements best describes the value of the expression 7x + 6 when x = 5? A. The result is a fraction. B. The result is a prime number. C. The result is a composite number. D. The result is a whole number that is neither prime nor composite.
Answer: B) The result is a prime number
==================================================
Explanation:
Replace x with 5. Then use PEMDAS to simplify.
7x+6
7*5+6
35+6
41
The expression 7x+6 is equal to 41 when x = 5.
The value 41 is prime because its factors are only 1 and 41.
Answer:
B
I know this is a year later lol
Model a desert community where 48% of the area is covered with houses. Place houses on of the 100 squares to represent or 48% houses.
Answer:
Place houses on 48 of the 100 squares to represent 48/100 or 48% houses.
Step-by-step explanation:
Guys plsss i need help. It needs work too
Answer:
[tex]f(x+h)=x^2+2xh+h^2+2x+2h[/tex]
Option D is correct option.
Step-by-step explanation:
We are given: [tex]f(x)=x^2+2x[/tex]
We need to find f(x+h)
For finding f(x+h) we need to replace x by x+h
[tex]f(x+h)=(x+h)^2+2(x+h)\\We \ know \ (a+b)^2=a^2+2ab+b^2\\f(x+h)=x^2+2xh+h^2+2x+2h[/tex]
Finding f(x+h) we get:
[tex]f(x+h)=x^2+2xh+h^2+2x+2h[/tex]
Option D is correct option.
Evaluate 5^-4
A.1/625
B.-1/625
C.625
D.-625
Answer:
A
Step-by-step explanation:
that's the right answer
What is the equation of the line that passes through the point (2,-4) and has a slope of -2
Answer:
The answer is
[tex] \huge y = - 2x[/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y + 4 = - 2(x - 2) \\ y + 4 = - 2x + 4 \\ y = - 2x + 4 - 4[/tex]
We have the final answer as
y = -2xHope this helps you
estimate the answer 102.3 × 4.7
Answer:
500
Step-by-step explanation:
First of, multiply all of the number by 10 to remove the decimal place ( this will make it less confusing)
So 102.3 x 10= 1023
4.7 x 10 = 47
You will have to round each of the numbers to 1 significant figure (sf) :
1023 round to 1 sf will be 1000
47 rounded to 1 sf will be 50
Then multiply these numbers:
1000 x 50 = 50000
Finally divide by 100 to get back the decimal places
(You divide by 100 because you multiplied by 10 twice, 10 x 10= 100)
You get 500
Please help i will mark branniest :)
Answer:
please mark me as brainlist
Step-by-step explanation:
-3.5,-1/4,2,1/3
jim is riding his bike home from school. the school is 9 miles from his house and he rides his bike at a constant speed of 12 miles per hour. which of the following graphs best represents jim's trip home?
-
answers:
a) z
b) y
c) x
d) w
Answer:
I think that it would be d because 9 is 3/4 of 12 and 45 is 3/4 of 60
Answer:
For all the people who don't understand that other guys answer it is graph W
Step-by-step explanation:
HELP HELP HELP first to actually help = brainliest
Answer:
Y = 3/5x + 2
Step-by-step explanation:
Answer:
[tex]y=\frac{3}{5} x+2[/tex]
Guinea,Liberia,Sierra Leone have a total population of 12,348,000. In those countries 1% of the people have been infected with the Ebola virus. About 50% of those infected have died. How many people have died?
Answer:
1% of 12,348,000 = 123,480
50% of 123,480 = 61,740 people have died
1. The rent of a condo unit was ₱1,200.00 for one night, to be shared equally by a group of female friends, who will be having their get together in the condo unit. At the last minute, four people decided not to go to the party, thus raising the cost to each girl by ₱400.00. How many girls attended the get-together?
(With Solutions Please)
Answer:
6 girls were there are first
Step-by-step explanation:
use trial and error. divide 1200 by a random number like 10, and see how much they each had to pay. If we guessed 10, then each girl would hypothetically pay 120 pounds. If four girls left, then 1200/6 would be 200 pounds. there was only a 60 pound increase here, not a 400 pound one.
I checked 1200/6 which equals 200 pounds per girl. If 4 girls left, then it would be 600 pounds for the 2 remaining girls. the rent increased from 200 to 600 which is a 400 pound increase.
Unit rate 45 points in 3 games
15
Step-by-step explanation:
Answer:
ksdkksanJ
Step-by-step explanation:
A department store buys 500 shirts at a cost of $12,000 and sells them at a selling price of $30 each. Find the
percent markup.
Answer:
25%Step-by-step explanation:
Step one:
given
number of shirts= 500
cost of all the shirts= $12000
unit cost of shirt= 12000/500
=$24
the selling price = $30
the profit per shirt= selling price-cost price
30-24=$6
Required
% mark up
% mark up=( profit/cost price)*100
% mark up=( 6/24)*100
% mark up=0.25*100
% mark up=25%
Hence the % mark up is 25%
If y varies directly as x and y = 30 when x = 6,
find x when y = 45.
13x – 12
D
B
C
D
(7x-6)
А A
What is the value of x?
Answer:
Ur answer is 7negative6
Answer:
1
Step-by-step explanation:
13x-12=7x-6
The Juniors and Seniors reported their scores on a standardized math test. The teacher displayed their scores on dot plots.
What is the overlap in the scores for the Juniors and the Seniors?
550
535 – 550
530 – 560
505 – 580
Which expression is equivalent to 2(8n)^4
Answer:
2. 8n. 8n. 8n. 8n
Step-by-step explanation:
[tex]2 {(8n)}^{4} = 2. 8n. 8n. 8n. 8n[/tex]
Equivalent expressions are expressions with equal value.
The equivalent expression of [tex]\mathbf{2\cdot(8n)^4}[/tex] is [tex]\mathbf{2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex]
The expression is given as:
[tex]\mathbf{2\cdot(8n)^4}[/tex]
Apply law of indices
[tex]\mathbf{2\cdot(8n)^4 = 2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex]
The above equation means that:
[tex]\mathbf{2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex] is equivalent to [tex]\mathbf{2\cdot(8n)^4}[/tex]
Hence, the correct option is (d) [tex]\mathbf{2\cdot(8n)\cdot(8n)\cdot(8n)\cdot(8n)}[/tex]
Read more about equivalent expressions at:
https://brainly.com/question/24242989
. Let X denote the wing length in millimeters of a male gallinule and Y the wing length in millimeters of a female gallinule. Assume that X is N(184.09, 39.37) and Y is N(171.93, 50.88) and that X and Y are independent. If a male and a female gallinule are captured, what is the probability that X is greater than Y
Answer:
The probability that X is greater than Y is 0.5754.
Step-by-step explanation:
It is provided that,
[tex]X\sim N(184.09, 39.37)\\\\Y\sim N(171.93, 50.88)[/tex]
It is also provided that X and Y are independent.
We need to compute the value of:
P (X > Y) = P (X - Y > 0)
Compute the mean and standard deviation of (X - Y) as follows:
[tex]E(X-Y)=E(X)-E(Y)=184.09-171.93=12.16\\\\SD(X-Y)=\sqrt{V(X-Y)}=\sqrt{V(X)+V(Y)}=\sqrt{39.37^{2}+50.88^{2}}=64.33[/tex]
Compute the the value of P (X > Y) as follows:
[tex]P(X>Y)=P(X-Y>0)\\\\=P(\frac{(X-Y)-E(X-Y)}{SD(X-Y)}>\frac{0-12.16}{64.33})\\\\=P(Z>-0.19)\\\\=P(Z<0.19)\\\\=0.57535\\\\\approx 0.5754[/tex]
Thus, the probability that X is greater than Y is 0.5754.
Glue at a store is worth $1.60. The store adds a 30% mark up to the glue in order to make a profit. How much is the mark up?
A .32
B. .59
C. .48
D. 2.08
Answer:
2.05
Step-by-step explanation:
so first you want to find 30% of 1.60, you get 0.45.
then you add 0.45 to 1.60, and get your answer at 2.05.
hope that’s helps!
Answer:
2.05
Step-by-step explanation:
-9 < 8(r - 17) - 1
Solve for r
Answer:
15.875 < r
Step-by-step explanation:
-9 < 8(r - 17) - 1
-9 < 8r - 137
+137 +137
------------------
128 < 8r
/8 /8
-------------
16 < r
Answer:
r>16
Step-by-step explanation:
1.) Add 11 to both sides.
-9+1<8(r-17)−9+1<8(r−17)
2.) Simplify -9+1−9+1 to -8−8.
-8<8(r-17)−8<8(r−17)
3.) Divide both sides by 88.
-1<r-17−1<r−17
4.) Add 1717 to both sides.
-1+17<r−1+17<r
5.) Simplify -1+17−1+17 to 16.
16<r16<r
6.) Switch sides.
r>16r
explain how you could use the greatest common factor of 8 and 20 in the distributive property to write 8 + 20 as a product
Answer: 4(5+2) or 4(2+5)
Step-by-step explanation:
8 = 2*2*2
20 = 2*2*5
4(5+2) = 20+8
+12=15 pls tell me it’s for a grade
Answer:
3+12=15
Step-by-step explanation:
15-12= 3
3+12=15
find the equation of the linear function represented by the table in slope intercept form! please
Answer:
slope is five.........
Ashely spent half of her weekly allowance at the movies. To earn more money her parents let her clean the windows in the house for $7. She cleans 5 windows in the house. What is her weekly allowance if she ended with $50?
Answer:
Her weekly allowance is $30
Step-by-step explanation:
What is the slope of the line y = 3?
Answer:
zero
Step-by-step explanation:
Tamara has money in a savings account
which earns 3% interest each month.
Write two expressions that can be used to
calculate the amount of money in her
account after one month. Let a represent
the amount of money in her account.
Answer:
1.03aStep-by-step explanation:
Amount in account = aInterest rate = 3% per monthAmount after a month:
1. ........................
a*(1 + 0.03) = 1.03a2. ........................
a + 0.03a =1.03aSolve for x and y please
Answer:
x = 20°
y = 19°
Step-by-step explanation:
The first two angles that are in the 2nd Quadrant:
2x - 3
3x - 7
The rule states that the two angles are complimentary angles that form an angle of 90°. So,
(2x - 3) + (3x - 7) = 90
2x - 3 + 3x - 7 = 90
2x + 3x - 3 - 7 = 90
5x - 10 = 90
5x = 90 + 10
5x = 100
x = 100 ÷ 5
x = 20
Another rule applies here, vertical angles are equivalent to each other.
So,
2x - 3 = 2y - 1
2(20) - 3 = 2y - 1
40 - 3 = 2y - 1
37 = 2y - 1
37 + 1 = 2y
38 = 2y
38 ÷ 2 = y
19 = y
QUESTION 3
Mark multiplied a number by itself, and found a product of 30. What is the number he started
with, rounded to the nearest tenth?
Answer:
5.5
Step-by-step explanation:
√30, which will round to 5.5, because √30*√30=30.
n for number
n x n = 30
n =
we have multiple options for n
exact forms:
√30
-√30
exact decimal forms:
5.47722557...
-5.47722557...
rounded to the nearest tenth:
i THINK:
5.5
-5.5
5.4
-5.4
sorry if im wrong with the rounding, hope this helps though :)
there 2 question help meeeeeeeeddeeeeeee plzzzzzzzzzzzzzzzz
Answer:
Step-by-step explanation:
x + 87 + 20 = 180 {Angle sum property of triangle}
x + 107 = 180
x = 180 - 107
x = 73
1) Exterior angle of a triangle equals the sum of opposite interior angles or remote angles.
2) x = 63 + 86
x = 149