What expression is equivalent to (-18) - 64n ?
A -2 (9 - 32n)
B 2 (9 - 32n)
C 2 (9 + 32n)
D -2 (9 + 32n)
Answer:
D
Step-by-step explanation:
Distribute the -2 to the 9 to get -18 and then to the 32n giving you -64n
Please could answer this question for me
Answer:
a) 26.2cm
b) 13.8 cm
please mark brainliest
Step-by-step explanation:
a) perimeter = 2(9+4.1) = 2(13.1) = 26.2 cm
b) perimeter = 3.6+3+7.2 =13.8 cm
Determine whether the ratios 5:7 and 10:21 are equivalent
Answer:
Step-by-step explanation:
No, thoose two ratios are not equivalent, but I can show you the ones that are equivalent, {You can write 5/7 or 10/14 or 20/28 or 40/56. There! 3 equivalent ratios.}
what is the conjugate of 7+2√5
i don’t know how to do this please help
what would be yearly earnings for a person with $6000 in savings at an annual interest rate of 2.0%
A rectangular has an area of 12 ft.² and a length of 5 feet what is the width
Answer:
12/5
Step-by-step explanation:
Width times Length = the area
w*5 = 12
w = 12/5
Answer:
w=2.4ft
Step-by-step explanation:
Which expresses a ratio in fraction form?
4:7
4 to 7
4/7
714
Answer:
I think it is 4/7 I might be wrong
A teacher evenly distributes 7 packages of markers to 3 groups of students.
Which two of the following represents how many packages of marker each
group receives?
A. 7/3
B. 3/7
C. 2 ⅓
D. 2.1
E. 21
Answer:
Step-by-step explanation:
2 1/3
If f(x) = 2x^3 – 5x^2 + 5, then what is the remainder when f(x) is divided by
x + 2?
Answer:
-31
Step-by-step explanation:
Do long division and make sure to put a place holder for x
Please find the slope of (-2, 4) and (3, -5)
Answer:
The slope of the line = m = -9/5
Step-by-step explanation:
Given the points
(-2, 4)(3, -5)Determining the slope between (-2, 4) and (3, -5)
(x₁, y₁) = (-2, 4)
(x₂, y₂) = (3, -5)
Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [-5 - 4] / [3 - (-2)]
= [-9] / [3 + 2]
= -9/5
Thus, the slope of the line = m = -9/5
Answer:
m = -9/5
Step-by-step explanation:
Taking (-2,4) as (x1,y1), and
Taking (3,-5) as (x2,y2)
Using the slope (m) formula:
[tex]m = \frac{y2-y1}{x2-x1}[/tex]
= (-5-4)/(3-(-2))
= -9/(3+2)
= -9/5
Hence, the slope is -9/5
Hope this helps and be sure to have a wonderful time ahead at Brainly! :D
2. How many terms are there in the expression: 3a + 6
Answer: 2
Step-by-step explanation: That expression is a binomial in any case the terms in a polynomial are separated by a plus or minus sign (+,-) so you can determine the number of terms by counting how many number or variable are being separated (ex: 3a+a-1 would have 3 terms and be a trinomial)
Find the product.
2y2(3x + 5z)
5xy2 + 7y²z
6xy2 + 10y2z2
6xy2 7 10y?z
Answer:
6xy² + 10y²z is the product answer
Step-by-step explanation:
The expression 6(x − 5) means the
A. sum of 6 and the sum of x and 5
B. product of 6 and sum of x and 5
C. product of 6 and difference of x minus 5
D. sum of 6 and the difference of x minus 5
Four times the difference of a number cubed and six
Step-by-step explanation:
4(n^3 - 6)
hope this helps
Which value or values for the variable c from the set below will make 2 + 0.5c < 2c true
{0.2, 0.7, 1, 3}
A) Only 3
B) 1 and 3
C) 0.7, 1, and 3
D) All the values in the set
Martina is 3 inches less than twice as tall as her little brother.
In the space below, write an expression for Martina’s height. Then, use the expression to find Martina's height if her little brother is 28 inches tall.
Help ASAP
Answer:
m=2x-3
Step-by-step explanation:
2(28)-3
56-3
53 inches
You estimate that there will be 85 people at your party, but only 75 show up, what is the percent error of your estimate?
Answer:
Percentage error of your estimate = 13%
Step-by-step explanation:
Given
Approximate value = 85
Exact value = 75
To determine
Percentage error can be determined using the formula
Percentage Error = |Approximate Value − Exact Value| / |Exact Value| × 100%
= |85 − 75| / |75| × 100%
= 10 / 75 × 100%
= 0.1333 × 100%
= 13%
Therefore, percentage error of your estimate = 13%
Answer:
i got Observed Value as 10 and True Value as 11. someone tell me if i was wrong
The price of a food it should be four times the price of the ingredients used in making the item. If the cost of ingredients used in making a taco is 1.5 dollars, what should be the pricw of the taco?
Answer:
6 dollars
Step-by-step explanation:
If the price of a food is four times the price of the cost of the ingredients, then if the taco's ingredients cost 1.5 dollars, all we have to do is multiply 1.5 by 4, to get the answer, 6 dollars.
a real estate agent sells a house for $360,000. the amount was 30% of her sales for the entire week. which equation could be used to determined s, the total amount of sales for the week
Answer:
1 200 000 $
Step-by-step explanation:
(100 divide per 30 ) x 360 000 $
PLEASE HELPP! WORTH 21 POINTS AND I WILL MARK BRAINLIEST!!!
Answer:
8 pizz an chick 6
Step-by-step explanation:
i need help.........
Answer:
17
Step-by-step explanation:
A meteorologist said that is was sunny for 70% of the
days the past 60 days.
On how many days was it NOT sunny?
A recipe uses 1 1/4 cups of milk to make 10 servings if the same amount of milk is used for each serving how many servings can be made using 1 gallon of milk?
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS THE QUESTION PLEASE HELP
Answer:
128 servings
Step-by-step explanation:
5/4 cups of milk for 10 servings is equal to 1/8 cup per 1 serving
there are 16 cups in a gallon
let 'n' = # servings in a gallon
so 1/8 : 1 is 16 : n
1/8n = 16
n = 16(8)
n = 128
Anand knows from experience that if he does not review a new vocabulary word that he has learned, that
he has a 70% chance of forgetting it each day. Let D be the number of days Anand goes without reviewing
a word until he forgets it.
Find the probability that it takes Anand 4 or more days to forget the word.
You may round your answer to the nearest hundredth.
P(D > 4) =
Answer:
0.031
Step-by-step explanation:
1-0.973 = 0.027 ≈ 0.03
At a bake sale, the soccer team had 50 packs of cookies to sell. At the end of the sale, they had 5 packs left.
What FRACTION of the cookies were sold?
Answer:
45/50= 9/10
Step-by-step explanation:
If 5 packs were left after the sale, then 50-5=45 is the number of packs sold
Then the fraction sold would be the number of packs sold divided by the total number of packs.
45 sold/50 total
4) Line L has equation y = 4x - 7, and line M is parallel to line L and passes through the point (2,15). Determine the equation of line M. A) y = 4x + 7 B) y = 2x + 7 ©). y = 4x + 15 D) y = 2x + 15
Answer:
the answer is A.y=4x+7
Step-by-step explanation:
Line M is parallel to the line L, so the equation for line M isy=4x+b
Plug in the coordinates of the point (2,15) , you get:
15=4*2+b
Solve that to get b=7
Therefore the equation of line M is y=4x+7
PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!
Answer:
48 units squared
Step-by-step explanation:
A collector has 2792 coins
altogether. Half of the coins
are on display. The collector
buys more coins at an auction
so that the coins on display
are now 40% of the collection.
How many coins are bought at
the auction?
Answer:
3490 coins
Step-by-step explanation:
Given data
Total coins= 2792 coins
Half of the coins are on display
that is 50% are on display
=2792/2
=1396
let the coins bought be x
40% of x= 1396
40/100*x= 1396
0.4x= 1396
x= 1396/0.4
x=3490
Hence 3490 coins were bought
2(4+7) as distributive property?
Answer:
2(4+7) = 2×4 + 2×7 = 8 + 14 = 22
Step-by-step explanation:
Trophies for Gunther’s soccer team will cost $6.25 each, plus 15 cents for every word on the engraving. Which equation could be used to find the cost, c, of each trophy based on the number of words, w , on the engraving?
Select one:
c=6.25+0.15w
c=6.25−0.15w
c=6.25+15w
c=15+6.25w
Answer: c=6.25+0.15w
Step-by-step explanation: