If a=7, then the value of a² - 3a is ______.
a) -7
b) 35
c) -28
d) 28
Answer:
-7
Step-by-step explanation:
Given
a = 7
Since a = 7, then that would mean it the base of the exponent would be replaced to 7 to the second power.
So 7 x 7 = 49 ( multiplied twice itself)
--------------------------------------------
7×2-3×7=14-21 = -7
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River Fun Boats rents paddle boats. The euqation C = 0.10t + 4 gives the charge in dollars, C, for renting a paddle boat for t minutes. A customer paid $9.00 for their rental. How lond did the customer use a paddle boat?
Answer:
Step-by-step explanation:
9 = 0.10t + 4
5 = 0.10t
t = 50 minutes
A man cycles a distance of 40km.
Answer:
he had a good exercise but why did he go for 40 km
Anyone help me please?
Each rhombus has four right angles-False
Each square has four right angles-True
a potter uses 3/5 of a pount of clay to make a bowl. how many bowls could the potter make with 10 pounds of clay?
a.) 6
b.)8
c.)16
d.)17
Answer:
he could make 16 bowls
Step-by-step explanation:
Write an
equation of the line that passes through each pair of points.
(-3,9), (-3,-5)
Answer:
x = -3
Step-by-step explanation:
x is -3 in all values so we just write an equation.
Step-by-step explanation:
slope=(-5-9)/-3+3
= undefined
How do you calculate 5x5
Answer:
25
Step-by-step explanation:
5 x 5 is just a shorter way of saying 5 + 5 + 5 + 5 +5
some people use a rule to see how many hours a child should sleep at night. Subtract the child's age in years from 30, then divide by 2.
Samantha is 14 years old she wakes up every morning at 7 am. Use the rule to work out what time she should go to sleep?
help me please. Thank you if you do.
Find the distance between the points.
(-1, 1), (3, -2)
Write 9.9.9.9
9.9.9 using exponential notation
Help help help help
Answer:
484
Step-by-step explanation:
First solve [tex]11^{2}[/tex] which equals 121
Then solve [tex]2^{2}[/tex] which equals 4
Then multiply these together to get 121*4 = 484
Answer:
121×4=484
Step-by-step explanation:
please mark me as brainlest
help please acellus sucks kind of
Answer:
126 cm^3
462 cm^3
Step-by-step explanation:
The volume of the triangular prism (green) is the area of the base multiplied by the height.
The base is the front surface which is a triangle with base 6 cm and height 7 cm.
The height of the prism is 6 cm.
V = AH
V = (1/2)bhH
V = (1/2)(6 cm)(7 cm)(6 cm)
V = 126 cm^3
The volume of the green triangular prism is 126 cm^3
The total volume of the composite solid is the sum of the two volumes.
Total Volume = 336 cm^3 + 126 cm^3
Total Volume = 462 cm^3
Find the distance between the two numbers on the number line, -4 7/12 and -3 1/6.
Answer:
1 1/2
Step-by-step explanation:
Number 15 Part B
Help me Explain and Solve
Answer:
Fran's would have 18 and Mia's would have 12
Step-by-step explanation:
Use the chart you set up in 15a to substitute the values. You look at the corresponding purple shell value to the value of 6 pink shells.
35 divided by 8693 long division or decimal form thank u
Answer:
0.00402622...
Step-by-step explanation:
please help! I will mark brainliest.
Answer:
2^4 × 3^2
Step-by-step explanation:
Check out the factor tree below.
Of the 64 students on a field trip to a museum, five-eighths brought their lunch. How many students brought their own lunch?
A. 39
B. 46
C. 40
D. 38
Answer:
C. 40
Step-by-step explanation:
1. To find how many students brought their own lunch, we have to multiply 5/8 by 64.
[tex]\frac{5}{8} * 64[/tex] [tex]\frac{5}{1}* 8[/tex] [tex]40[/tex]Therefore, the answer is C. 40.
Ariadne jogs at an average speed of 8 km/h. How far does she travel in 1½ hours?
Answer:
12km
Step-by-step explanation:
1 hour = 8 half hour = 4
8+4=12
PLEASE HELP!!!!!
will mark brainliest!!!!!
Step-by-step explanation:
f(0)=0+1=1
f(1)=1+1=2
f(7)=7+1=8
f(8)=8+1=9
f(9)=9+1=10
now you plot these points:
(0,1) (1,2) (7,8) (8,9) (9,10)
and then connect them to get the function
Simplify the linear expression.
- 2x +3(-5x + 1)
Enter your answer in the box.
Answer:
-17x+3
Step-by-step explanation:
Answer:
-17x+3
Step-by-step explanation:
=-2x+3(-5x+1)
=-2x-15x+3
=-17x+3
Use the table to answer questions 1 and 2.
X
у
1
103
2
105
3
107
4
109
1. The function represented in the table
is linear. How do you know?
2. What would be the 5th term in the
sequence associated with the table?
OUTSIDE
Answer:
1- The function is linear because 2 is added to each y value to get to the next y value.
2- It would be 111 because 109+2=111
Step-by-step explanation:
Hope this helps:)
Use the vertical line test to determine whether the relation is a function. If not, identify two points a vertical line
would pass through.
Answer:
function
Step-by-step explanation:
The verticle line test is basically seeing if it is a function
It is a function when the verticle line touches only one point on the graph at once
For example, if the graph was a circle, and u drew a verticle line through it, it would touch two points on the graph, so it is NOT a function
But for this parabola, if you draw a verticle line at any point, it only touches one point of the graph, so it is a function
A vertical line test is a graphical approach for assessing if a curve in the plane reflects the graph of a function.
The correct option is C, function.
What is a Vertical-line test?The vertical line test is a method used to determine whether a graph represents a function or not. If a vertical line can be drawn on the graph such that it intersects the graph in more than one point, then the graph is not a function.
The graph of the given function, intersect the vertical axis or the y-axis at most one time, therefore, the given graph passes the vertical line test. Thus, it can be concluded that the given graph is a function.
Hence, the correct option is C, function.
Learn more about vertical line test at:
https://brainly.com/question/30343513
#SPJ3
Describe a situation that could be modeled with the ratio 4:1. Your answer:
Sketch the graphs - 2y – 3=x
Answer:
this should be correct try mathaway but instead of away make it way. it won't let me say the actual name
Hi Means What 62+789
62 + 789
= 851
it means that if you have 62 sticks and add 789 sticks, your total number of sticks is 851 sticks.
I NEED A 100% ACCURATE ANSWER FOR THIS QUESTION ASAP NO LINKS !!!
Answer:
infinitely many solution
Step-by-step explanation:
Answer:
Any value of x makes the equation true.
All real number
Interval Notation:
(−∞,∞) So it's Infinitely many solutions.
Help me Please....................
9514 1404 393
Answer:
1.3363
Step-by-step explanation:
The basic idea here is to find an expression for the direction vector between a point on L1 and a point on L2. Then, solve for the points on L1 and L2 that make that vector perpendicular to both lines L1 and L2. (The dot product of direction vectors is zero.) The distance between the points found is the shortest distance between the lines.
__
Let P be a point on L1. Then the parametric equation for P is ...
P = (6t, 0, -t) . . . . . . origin + t × direction vector
Let Q be a point on L2. The direction vector for L2 is given by the difference between the given points. It is (4-1, 1-(-1), 6-1) = (3, 2, 5). Then the parametric equation for Q is ...
Q = (3s+1, 2s-1, 5s+1) . . . . (1, -1, 1) + s × direction vector
The direction vector for PQ is ...
Q -P = (3s+1-6t, 2s-1, 5s+1+t)
The dot product of this and the two lines' direction vectors will be zero:
(3s+1-6t, 2s-1, 5s+1+t)·(6, 0, -1) = 0 = 13s -37t +5 . . . perpendicular to L1
(3s+1-6t, 2s-1, 5s+1+t)·(3, 2, 5) = 0 = 38s -13t +6 . . . perpendicular to L2
The solution to these equations is ...
s = -157/1237
t = 112/1237
Then (Q-P) becomes (94, -1551, 564)/1237, and its length is ...
|PQ| = √(94² +1551² +564²)/1237 ≈ 1.3363
The distance between the two lines is about 1.3363 units.
Estimate 636 divided by 25
Answer:
25.44
Step-by-step explanation:
Which of the following expressions are equivalent to
x + y + z?
Choose all answers that apply:
A: z + y + x
B: x + z - y
C: None of the above
Answer:
A
Step-by-step explanation:
addition is commutative