How do you round each number to the place value of the underlined digit?
Answer:
9. 80, 547.65
10. 135,702.0
pleaseeeeeeeeeeee brainliest
Answer:
what?
Step-by-step explanation:
Evaluate f(x) = 1/4x
for x = -5.
A. 20
B. -1/20
C. -1 1/4
D. -4/5
Answer:
C. -1 1/4
Step-by-step explanation:
First, we substitute -5 for x.
[tex]f(-5)=\frac{1}{4} *-5[/tex]
Then, we evaluate.
[tex]f(-5)=\frac{1}{4} *-5=\frac{-5}{4} =-1\frac{1}{4}[/tex]
If you can walk 5.3 miles in 3.2 hours, how many minutes does it take to walk 1.74 miles?
Answer:
Let x be the number of hours for 1.74 miles
5.3 miles 3.2 hours
1.74 miles x
When you cross multiply the above numbers you get the equation:
5.3x = 5.568
x = 5.568/5.3
x = 1.05
Therefore it takes 1.05 hours to walk 1.74 miles.
What is the distance between -4 and 7 on a number line?
Answer:
11
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
Take -4 and turn it to 0.
-4 + 4 = 0
We added 4 to the number
0 + 7 = 7
We added 7 to the number.
4 + 7 = 11
Solve the equation for x
Answer:
There is no answer for x
Step-by-step explanation:
Jody sprints 400 meters per minute. How fast does she run in meters per second? Round to the nearest hundredth. *
1 point
Your answer
Answer:
399
Step-by-step explanation:
Lcm of 36 75 80 is what if you know plz send the answer
Answer:
3600
Step-by-step explanation:
lcm stands for "lowest common multiple"
the lcm is 3600 when done with the prime factorization process
Answer:
3600
Step-by-step explanation:
Express each number as a product of its prime factors, that is
36 = 2² × 3²
75 = 3 × 5²
80 = [tex]2^{4}[/tex] + 5
Now multiply each factor the greatest number of times it occurs in each of the 3 numbers.
2 → 4 times (that is [tex]2^{4}[/tex] )
3 → twice (3² )
5 → twice (5² )
Thus
LCM = [tex]2^{4}[/tex] × 3² × 5² = 16 × 9 × 25 = 3600
Point N is on line segment MO. Given NO = 14 and MO = 18, determine the length MN.
PLEASE PLEASE PLEASE HELP. This is a geometry worksheet.
Answer:
where's the question?
the exact value of 5.2 billion ÷100 is
(use scientific notation, round to three decimal places as needed)
The answer is:
5.2 x 10^7 or 52,000,000
Find the absolute value. |-5.3|
Answer:
5.3
Step-by-step explanation:
because it is going to the left 5.3 so if you absolute value it, it will still be 5.3
This graph represents −x−2y=−4 .
Which ordered pair is in the solution set of −x−2y≤−4 ?
A. (−4, 1)
B. (−1, 4)
C. (−4, −1)
D. (4, −1)
Answer:
B
Step-by-step explanation:
We have the equation [tex]-x-2y=-4[/tex] and we want to find which ordered pair is in the solution [tex]-x-2y\leq -4[/tex]
First, let's convert the inequality to slope-intercept form. So, we have:
[tex]-x-2y\leq-4[/tex]
Add x to both sides:
[tex]-2y\leq x-4[/tex]
Divide both sides by -2. Since we're dividing by a negative, we will flip the sign:
[tex]y\geq- \frac{1}{2}x+2[/tex]
Therefore, our original inequality will be the same as above.
Notice that our y is greater than our equation.
Therefore, the shaded area will lie above our line.
So, any point that falls within the region above our line (in the graph) and on the line is a solution to our inequality.
(-4, 1) is below our line, so it's not a solution.
(-1, 4) is above our line. So, (-1, 4) is our answer.
(-4, -1) is again below our line. So, it's not a solution.
Finally, (4, -1) is also below our line, so it's not a solution.
Therefore, our final solution is B: (-1, 4).
Let's check this. Substitute -1 for x and 4 for y. This yields:
[tex]-(-1)-2(4)\stackrel{?}{\leq}4[/tex]
Multiply:
[tex]1-8\stackrel{?}{\leq}{4}[/tex]
Subtract:
[tex]-7\stackrel{\checkmark}{\leq}4[/tex]
So, (-1, 4) is indeed our solution.
And we're done!
The total cost of a shopping trip was $123.35? Layla bought 4 skirts and a pair of shoes for $35.67. Which equation can be used to find the price of each skirt?
A. 123.35 = 35.67x +4
B. 35.67 = 123.34x + 4
C. 35.67 = 4x + 123.34
D. 123.35 = 4x + 35.67
Answer: D
Step-by-step explanation: The 4 skirts cost are unknown which makes up the 4x and the extra pair of shoes adds on to the cost by 35.67.
Find the average (mean) of each group of numbers.
41. 3, 12, 6
42. -8,-1, -3
43. -8, 15, 5, 8
45. –10, -7, 7, 10
46. 12, 24, 9, 15, 18, 20, 16, 14
Answer:
41, 7
42, -4
43, 5
45, 0
46, 16
Step-by-step explanation:
41, 3+12+6 ÷3
42, -8, -1, -3 ÷3
43, -7+15+5+8÷4
45 -10-7 is -17, 7+10=17, 17-17 =0
46, 128/8=16
ab-a-b+1
I know it splits into a(b-1)-1(b-1) but can someone explain in words how it becomes (a-1)(b-1) thanks
Answer:
ab - a - b + 1 = (a - 1)(b - 1)
Step-by-step explanation:
Let us explain factorization by grouping
In the expression of 4 terms ax + by + bx + ay
Take every two terms have a common factor in a bracket
(ax + ay) + (bx + by)Take the common factor out of the brackets
a(x + y) + b(x + y)Take the bracket as a common factor
(x + y)(a + b)Let us do these steps with our question
∵ ab - a - b + 1 is an expression of 4 terms
→ Take ab and a in a bracket, -b and 1 in another bracket
∴ ab - a - b + 1 = (ab - a) + (-b + 1)
→ Take a as a common factor from the 1st bracket and -1 from
the 2nd bracket
∴ (ab - a) + (-b + 1) = a(b -1) + -1(b - 1)
→ Take the bracket (b - 1) as a common factor
∴ a(b -1) + -1(b - 1) = (b - 1)(a + -1)
∵ (+)(-) = (-)
∴ (b - 1)(a + -1) = (b - 1)(a -1)
→ Change the order of the bracket
∴ (b - 1)(a -1) = (a - 1)(b - 1)
∴ ab - a - b + 1 = (a - 1)(b - 1)
Simplify the expression
(-n³+8)+(-n³+5)
Answer: -2n^3+13
Step-by-step explanation:
Use PEMDAS
P- ()
E _^
M *
D /
A +
S -
The cheese we ate had quite a nip. Iready
I think that it is a strong, almost unpleasant flavor because it cannot be a verb because nip in this context is what the cheese has and that cannot be a verb.
I don't think that it is a cold, unpleasant feeling because it's cheese, and the feeling is usually used to describe things you touch with your hands.
Answer:
It is a string, almost unpleasant, flavor
Step-by-step explanation:
9 of 10
Work out
3 4.
2 +1
4 5
Give your answer as a mixed number
where appropriate.
2/3p-7=1/4p+12 help me please
Answer:
p=228/5
Step-by-step explanation:
2/3p-7=1/4p+12
12(2/3p-7)=12(1/4p+12)
8p-84=3p+144
5p-84=144
5p=228
p=228/5
Check:
2/3(228/5)-7=1/4(228/5)+12
30.4-7=11.4+12
23.4=23.4
What is the product?
-9x(5-2x)
Answer:
− 45 x + 18 x^2
Step-by-step explanation:
An office printer prints 25 photos in 12.5 minutes. A home printer prints 15 photos in 6 minutes. Which printer is faster?How many more photos can you print in 12 minutes using the faster printer?
Answer: The answer is that the office printer prints faster and it can print 30 photos in 15 minutes.
Step-by-step explanation:
I know this ain't wrong for a fact.
I NEED HELP I AM STUPID SO I DONT GET THIS HERE IS THE QUISTION 4-x-6(x+5)=15 HE ALSO SAID THIS - Students will determine whether an equation has 0, Infinite, or 1 solution, and if 1, find it. I ADDED A SCREEN SHOT OF QUISTION PLS HELP ME OR I AM FAILING THIS CLASS
Answer:
im pretty sure it has two real solutions
Step-by-step explanation:
1. simplify the equation given
(4x - 6)(x + 5) = 15
4x^2 + 20x - 6x - 30 = 15
4x^2 + 14x - 45 = 0
2. find the discriminant (b^2 - 4ac); (a = 4, b = 14, c = -45)
14^2 - (4 x 4 x -45)
196 - (-720)
916
the discriminant is positive, so this equation has 2 real solutions
to find the solutions, factor the bolded equation (if you need help factoring, let me know!)
The equation of the line in the graph is y=
X +
Answer:
y= -1x +1
Step-by-step explanation:
Determine if the ratio or rates are equivalent: 120 calories in 2 servings; 360 calories in 6 servings OMG PLS HELP ASAP I NEED HELP YOU GET 25 PIONTS
Answer:
No, they are not equivalent
Step-by-step explanation:
Because
120/2 Can not be divided equally into 360/6
Answer:
Yes
Step-by-step explanation:
They are equivalent because if you write the ratio's out, you get 120:2 and 360:6. If you then simplify both, you get 60:1. To simplify these, you need to find a common factor. In 120:2, you can tell that both numbers can be divided by two because they are both even. After dividing, you get 60:1. In 360:6, you can tell that both numbers can be divided by 6 since they both are multiples of 6. After dividing, you get 60:1. Because these to ratio's are equal, they are equivalent.
Bria and Mandy each bought some candy Bria bought 5 packs of skittles for $9.75 Mandy bought 7 packs of skittles for $11.97
Please help me with this
Answer: 5x-y+6
Step-by-step explanation:
Mrs. Rodriguez is making cookies. The ratio of walnuts to raisins she uses in her recipe is 3 to 5. If Mrs. Rodriguez decides to bake giant cookies, which of the following shoes the possible number of ingredients in each cookie? a. 12 raisins and 20 walnuts b. 36 raisins and 60 walnuts C. 25 raisins and 15 walnuts d. 20 raisins and 15 walnuts
Answer:
C.
Step-by-step explanation:
3/5 is equal to 15/25 walnuts/raisins
A certain blueprint shows two fences. Fence A is 1 1/5 yards long but is 1 1/2 inches long on the 2 blueprint. What is the unit rate for inches per yard on this blueprint? If fence B is 4 yards long, how long is fence B on the blueprint?
Answer:
Unit rate = 1.25 inches per yard
Length of fence B on the blueprint = 5 inches
Step-by-step explanation:
We are told that Fence A is 1 1/5 yards long but is 1 1/2 inches long on the blueprint.
This means it's 1.2 yards long but 1.5 inches on the blueprint.
Thus, the unit rate for this blueprint will be; 1.5/1.2 = 1.25 inches per yard
fence B is 4 yards long.
Thus, the corresponding blueprint measurement = 4yards × 1.25 inches/yard = 5 inches.
find the equation of the linear function represented by the table below in slope-intercept form. picture of table is below
Answer:
y = 3x+1
Step-by-step explanation:
Well, slope intercept form is y =mx+b, and to find the slope, you have to take two of the examples for y, and divide it by 2 examples of the x, like so:
7- (-5) / 2- (-2) which is 12/4 which is 3, so the slope is 3.
we now can make the first part of the equation:
y = 3x + b
Now we just need "b". To find b, just substitute the x and y values for two values shown on the chart, such as -2 and -5. (They have to be on the same row).
-5 = 3x-2 + b
you get:
-5 = -6+b
which is equal to:
b = 1
So, putting b back in the equation, you get:
y = 3x+1
