Answer:
-40x+20
Step-by-step explanation:
10 times -4x=-40x
10x2=20
Answer:
-40x+20
10*-4x+10*2
PLEASE HELP WILL GIVE BRAINLEST
Which of the following statements is not true?
-1 < -1.5
1.7 > 1
≤
0.01 < 0.1
Answer:
-1 < -1.5
Step-by-step explanation:
when using negative numbers, larger numbers will be smaller. so even tho 1.5 seems to be .5 bigger, it is negative, so it is .5 smaller
3. Would it be more efficient to use an inequality vo
or to list all of the quantities less than 6? Explain.
Answer:
Inequality
Step-by-step explanation:
There are an infinite number of quantities less than 6 (5, 4, 3, 2, 1, 0, -1, -2, -3...) so it is much easier to write an inequality
The sea floor is 104 feet below sea level. Katy is 28 feet below sea level. She is moving downward at a rate of 4 feet per minute. Colin used the following calculation to determine how long it will take Katy to reach the sea floor. Is he correct? Explain.
Answer:
19 minutes
Step-by-step explanation:
Taking the sea level as the reference point, the values of depths to be considered can be determined as follows;
Total depth from sea level to the sea floor = 104 feet
Katy's depth from the sea level (depth covered) = 28 feet
Katy's distance to the sea floor = 104 - 28
= 76 feet
Katy's distance to the sea floor = 76 feet
But Katy moves at a rate/ speed of 4 feet per minute;
So that,
speed = [tex]\frac{distance}{time}[/tex]
time = [tex]\frac{distance }{speed}[/tex]
= [tex]\frac{76}{4}[/tex]
= 19
time = 19 minutes
Therefore it would take Katy 19 minutes to reach the sea floor.
Answer:
Step-by-step explanation:
No, Colin is not correct. He needs to subtract first to get the total distance and then divide by the rate. He should have put parentheses around 104–28 and then divided by 4 to get the answer of 19 minutes.
Find the measure of the arc or angle indicates
Answer:
b
Step-by-step explanation:b
Sarah is watching a video online that is 246.987 seconds long. She writes this time in expanded form. Which expression represents the value of one of the digits in the length of the video?
Answer:
Sarah is watching a video online that is 4.7 minutes long.
Step-by-step explanation:
As we know 60 sec = 1 minute
⇒60×4 sec = 1×4 minutes
⇒240 sec = 4 minutes
⇒246.987 ≈ 247
= 240 + 7 seconds
= 4 minutes 7 seconds
= 4.7 minutes
∴ we get
Sarah is watching a video online that is 4.7 minutes long.
18 + a > 21 inequalities
Answer:
39
Step-by-step explanation:
The graph of a sinusoidal function has a minimum point at (0, 2) and then has a maximum point at (3pi,6).
Write the formula of the function, where is entered in radians.
Answer:
f(x) = -2cos(1/3 x) + 4
Step-by-step explanation:
help PLEASE !! ALGEBRA 1
Answer:b
tep-by-step explanation:
PLS HELP Select all the expressions that are equivalent to 3b
Answer:
The equivalent expressions are A. and E.
Answer:
a, b, e
Step-by-step explanation:
a= 3b
b= 3b
c= b^3
d= b+3
e= 3b
The ratio of the measures of the angles of a triangle is 5:6:7 find the measures of the angles of the triangle.
Answer:50°
Step-by-step explanation:
Let x represent the scale factor, the ratios are multiplied by:
5x°+6x°+7x°=180°
18x°=180°
x=10
Smallest Angle 5x°=5(10)°=50°
f(x)=300x(4/5)^x help me please
Answer:
The Answer is x = 0
Step-by-step explanation:
Your welcome :)
The record high temperature at the South Pole is 10°F. The record low temperature at the South Pole is
–
117°F.
How many degrees warmer is the record high temperature than the record low temperature?
Answer:
127 degrees f
Step-by-step explanation:
-117 + ? = 10
Pleaseeeee helppp answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
Answer:
x = 6
Step-by-step explanation:
AC = 5x - 24
AO = 3
AC and BD bisect each other at point O. This means AC ≅ CO.
So, 2(AO) = AC.
2(3) = 5x - 24
Multiply.
6 = 5x - 24
Combine the constants.
30 = 5x
Divide by 5.
x = 6
which rate is faster 2 feet per second or 2 seconds per foot, or are both rates the same
Answer:
2 feet per second is faster.
Step-by-step explanation:
2 seconds per foot would also equal half a foot per second, which is less than 2 feet per second.
HELP I AM CONFUSION WHATS THE ANSWERRR
Chuck goes to a community college. There is an enrollment fee of $207.55, plus $223.07 per credit hour. Which equation
shows C, the total cost of attending the community college, for x credit hours?
OA.
C= $207.55x - $223.07
OB.
C= $207.55x + $223.07
O C.
C= $223.07x + $207.55
OD.
C = $223.07x- $207.55
Trigonometry Practice
Answer:
x= 33.9
Step-by-step explanation:
use cosine because x is the adjacent and 40 is the hypotenuse
set up your equation:
cos(32)= (x/40)
multiply both sides by 40:
40(cos(32))= (x/40)40
40(cos(32))= x
multiply 40 by the cos(32):
33.9 = x
I need help with these questions please help it's due tomorrow
which mixed number is equivalent to the improper fraction? 23/3
A. 6 5/3
B. 8 1/3
C. 7 1/3
D. 7 2/3
Answer:
72/3. d)
Step-by-step explanation:
You can mark me as brainiest if you want
cuál es el resultado de
98.45 × 57.85
Answer:
98.45 × 57.85 = 5696.3325
Step-by-step explanation:
Espero y te ayude esta respuesta :)
can someone help me with this?
Answer:
8
Step-by-step explanation:
This problem uses the pythagorean theorem. 15 squared plus 8 squared equals 17 squared.
3 squared=9 2(9)=18 18(5) 90
Answer:
Urhrndjdbgndidbgndotvsktvg
I need help AGAIN lol- I'll mark brainliest :3
Simplify it- don't solve it. Show your work too please!
Answer:
you have to apply to both things in the bracket. its r^12*t^12
Step-by-step explanation:
Can anyone help me with this question please . I need to turn this in a few minutes.
Answer:
rip
Step-by-step explanation:
its been 5 min
Pleaseee helpp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!!
Answer:
720
Step-by-step explanation:
interior angles of a hexagon is 720
Find −2.45−(−3.9)
-
2
.
45
-
(
-
3
.
9
)
. Write your answer as a decimal to the nearest hundredth.
The nearest hundredth is 1.45.
How to find nearest hundredth?Any decimal number is rounded to the nearest hundredth by the term "to the nearest hundredth.
Find −2.45−(−3.9)
Remove the parenthes:
-2.45+3.9
calculate the sum or diffrerece
1.45
round the number 1.45
The answer is 1.45
Any decimal number is rounded to the nearest hundredth by the term "to the nearest hundredth." A hundredth is 1/100 or 0.01 in decimal form. For instance, 2.17 is the result of rounding 2.167 to the nearest tenth.Look at the next place value to the right to round a number to the next hundredth (the thousandths this time).To learn more about nearest hundredth refer to:
https://brainly.com/question/15676189
#SPJ2
The decimal point is the dot that separates the whole number from the fractional part of the number.
The decimal to the nearest hundredth exists 1.45.
What is meant by decimal number?Integer and non-integer numbers are often expressed using the decimal numeral system.
Decimals are a type of number in algebra that have a whole number and a fractional portion separated by a decimal point. The decimal point is the dot that separates the whole number from the fractional part of the number.
The term "decimal" refers to the base-10 number system, which is arguably the most widely used. The ten single-digit numbers that make up the decimal number system are 0 through 9, or just 1, 2, 3, 4, 5, 6, and 7. 10 is the number that follows 9. 20 comes follows the number 19, and so on.
Any decimal number is rounded to the nearest hundredth by the term "to the nearest hundredth.
Let the given equation be −2.45 − (−3.9)
= -2.45+3.9
simplifying the above equation, we get
= 1.45
Therefore, the decimal to the nearest hundredth exists 1.45.
The complete question is:
Find -2.45-(-3.9). Write your answer as a decimal to the nearest hundredth.
To learn more about decimal number refer to:
https://brainly.com/question/1827193
#SPJ2
Pleaseeee helpp answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
Answer:
x = 87º
Step-by-step explanation:
opposing angles in quadrilaterals are equal, so x = 87º
What is the domain of the given function? {(3, –2), (6, 1), (–1, 4), (5, 9), (–4, 0)}
a {y | y = –4, –2, –1, 0, 1, 3, 4, 5, 6, 9}
b {y | y = –2, 0, 1, 4, 9}
c {x | x = –4, –2, –1, 0, 1, 3, 4, 5, 6, 9}
d {x | x = –4, –1, 3, 5, 6}
21х + 7у = 42
- 5х + 5y = 10
X and y
Answer:
X=5 y=7
Step-by-step explanation:
i am pretty sure im right. if im wrong im sorry
Answer:
Step-by-step explanation:
21x + 7y = 42
-5x + 5y = 10
105x + 35y = 210
-35x - 35y = -70
70x = 140
x = 2
-10 + 5y = 10
5y = 20
y = 4
(2, 4)
Jose drove to the mountains last weekend. There was heavy traffic on the way there, the trip took eight hours. When jose drove home, there was no traffic and the trip only took five hours. If his average rate was 21 mph faster on the trip home, how far away does jose live from the mountains
Answer:
The distance is 280 miles
Step-by-step explanation:
Given
When going to the mountain:
Let the speed be x.
[tex]Speed = x[/tex]
[tex]Time = 8[/tex]
When going home:
[tex]Speed = 21 + x[/tex]
[tex]Time = 5[/tex]
Required
Determine the distance of the mountains
Distance is calculated as:
[tex]Distance = Speed * Time[/tex]
When going to the mountains, the distance is:
[tex]Distance = x * 8[/tex]
When going home, the distance is:
[tex]Distance = (21 + x) * 5[/tex]
It should be noted that, the distance is the same.
So, we have:
[tex]x * 8 = (21 + x) * 5[/tex]
Open bracket
[tex]x * 8 = 21* 5 + x * 5[/tex]
[tex]8x = 105 + 5x[/tex]
Collect Like Terms
[tex]8x - 5x= 105[/tex]
[tex]3x= 105[/tex]
Divide both sides by 3
[tex]x= \frac{105}{3}[/tex]
[tex]x= 35[/tex]
Substitute 35 for x in
[tex]Distance = x * 8[/tex]
[tex]Distance = 35 * 8[/tex]
[tex]Distance = 280[/tex]
The distance is 280 miles