Answer:
5.24 hours
Step-by-step explanation:
I like to set these up as ratios.
279 miles/4.5 hours = 325 miles/ x hours
Then cross multiply
279x = 4.5 x 325
279x = 1462.5
divide both sides by 279
x = 5.24 hours
You can also solve 279 miles/4.5 hours to get the miles per hour driven, then divide 325 by that number:
279/4.5 = 62mph
325/62 = 5.24
I really need help!!!
If the lengths of two sides of a triangle are 3 and 4, which could be the length of the third side?
Answer: It’s 5 if it’s the two legs
Step-by-step explanation:
Use the Pythagorean Theorem
4. Ethan can run 3 miles in 30 minutes. At this rate, how long will it take Ethan to run one
mile?
Select all the correct statements.
Answer:
C,D,E,F
Step-by-step explanation:
A amplitude is 2
B period is 4pi
Answer:
f option is write
Step-by-step explanation:
because it is true
mark me brainlist
PLEASE HELP TIMED TEST What is the value of x in the matrix equation below?
3
-21
8
х
10
N
3
-1
-7
-4
-3
-1
.
Answer:
x = 1
Step-by-step explanation:
Given the matrix;
[tex]-2\left[\begin{array}{ccc}x&-1\\3&5\end{array}\right] + \left[\begin{array}{ccc}3&8\\-1&6\end{array}\right] = \left[\begin{array}{ccc}x&10\\-7&-4\end{array}\right][/tex]
Converting to equations
From the first row of each matrices
-2x + 3 = x
Collect the like terms
-2x - x = -3
-3x = -3
x = -3/-3
x = 1
Hence the value of x is 1
Which expression is equivalent to 6x-9,
3
Answer:
the expresion its equal at the d9feremce between you and the excercise so its 7
Base your answer on calculate the measure of and b
The answer would be 30°.
What three-dimensional figure is represented by the net shown below?
A cube
B square pyramid
C rectangular prism
D rectangular pyramid
Answer:
C
Step-by-step explanation:
The net, if you imagine it folded up, will look like a long box.
Because all the dimensions are not equal, the figure cannot be a cube. Both square and rectangular pyramids have 5 faces, unlike this net.
A net of a rectangular prism, however, will have different dimensions for [tex]l[/tex] and [tex]w[/tex], and have 6 faces. So, the answer is C, rectangular prism.
Good luck ^^
The three-dimensional figure represented by the net shown below is a rectangular prism.
Option C is the correct answer.
What is a prism?A prism is a three-dimensional object.
There are triangular prism and rectangular prism.
We have,
From the figure,
We see that it is an open rectangular prism.
All the open sides are rectangular in shape.
If we fold all the sides it will form a rectangular prism.
Thus,
The three-dimensional figure represented by the net shown below is a rectangular prism.
Learn more about prism here:
https://brainly.com/question/12649592
#SPJ2
PLEASE HELPPP! I'LL GIVE BRAINLEST
Answer:
5
----------------
Please help me simplify this!!! Thank you so much.
Answer:
[tex] {3}^{2} [/tex]
Step-by-step explanation:
♡ Good Lessons ♡
Answer:
it's indices tho so you'll use addition/subtraction rule
Someone please help me I’ve been trying all day!
NO LINKS , answers only
I MEAN IT!!!!
Answer:
Step-by-step explanation:
You want to set up a system. We are given some points fo we can set up inputs and outputs. F(0) = 5, given by point (0,5). and F(3)=135, given by point (3,135). The exponential function general equation is F(x)= a(b)^x. plug in out functions into the general equation to get a(b)^0=5 and a(b)^3=135. Then you simplify and solve for a. In the equation a*b^0=5, anything to the power of 0 is 1. so a*1=5. Therefore a=5. we plug in the a to the second equation to find b. 5*b^3=135. b^3=27. b=3 from simplifying. Therefore, the equation should be 5(3)^x. THATS IT!
Which ordered pair represents the y-intercept of the graph of the equation y = - 4 x - 7 ?
Answer:
(0, -7)
Step-by-step explanation:
Since -4x is the slope, then -7 is the y-intercept.
For finding y intercept we substitute x=0
y = -7
The ordered pair would be
(0,-7)
hope this helps and is right. p.s. i really need brainliest :)
How many 10ths equivalent to 3/5
Answer: 6 tenths
Step-by-step explanation:
3/5 = 6/10 (multiply by 2)
Please answer. Ill mark brainliest for real answer.
!NO LINKS, NO FILES!
please :)
Answer:
it is 34 that's the answer.
Step-by-step explanation:
Answer:
120 feet squared.
Step-by-step explanation:
If this is incorrect I apologize but I believe this is the correct answer.
Select the correct difference. 5d^2 + 4d - 3 less 2d^2 - 3d + 4
Answer:
[tex]3d^2+ 7d- 7[/tex]
Step-by-step explanation:
Given
[tex]P_1 = 5d^2 + 4d - 3[/tex]
[tex]P_2 = 2d^2 - 3d + 4[/tex]
Required
P1 less P2
This means that we subtract P2 from P1.
So, we have:
[tex]P_1 - P_2 = 5d^2 + 4d - 3 - (2d^2 - 3d + 4)[/tex]
Remove bracket
[tex]P_1 - P_2 = 5d^2 + 4d - 3 - 2d^2 + 3d - 4[/tex]
Collect like terms
[tex]P_1 - P_2 = 5d^2 - 2d^2+ 4d + 3d- 3 - 4[/tex]
[tex]P_1 - P_2 = 3d^2+ 7d- 7[/tex]
The difference is: [tex]3d^2+ 7d- 7[/tex]
Tuesday is... 45 and Wednesday is...35
Answer:
Huh? Then Thursday will be 25, Friday 15 & Saturday 5 ~~~
what is the simplified form of 48\192?
[tex] \sqrt[?]{?} [/tex]
The surface area S of a cube with the side length a is given by the formula S=6a^2. Find the side length of a cube with the Surface are of 700 square inches. Round to the nearest integer
Answer:
Side length of cube = 10.80 inch (Approx.)
Step-by-step explanation:
Given:
Surface area of cube = 700 square inches
Find:
Side length of cube
Computation:
We know that all sides of cube are equal
Surface are of cube = 6(Side)²
By putting 700 as surface are of cube in the formula;
700 = 6(Side)²
(Side)² = 700 / 6
(Side)² = 116.667
Side = √116.667
Side = 10.801
Side length of cube = 10.80 inch (Approx.)
What is
7(2b + 3) - 2b
Pls I need help fast
Answer:
b= = - 7/4 or -1.75
Step-by-step explanation:
14b +21 -2b=0
12b +21=0
12b= -21
b= -21/12
b= - 7/4 or -1.75
Answer:
i dont know what you neccesarily want but here are two answers b=-7/4 or -1 3/4 other answer is 12b+21
Step-by-step explanation:
first, you have to set this question equal to 0.
7(2b+3)-2b=0
now you have to distribute the 7 to everything inside the parentheses.
14b+21-2b=0
combine like terms
12b+21=0
you can stop here and take this answer if this is the one you want
now subtract each side by 21
12b=-21
divide each side by 12
b=-21/12
simplify
b=-7/4
hope this helps! have a nice day :)
The scale used on a map is 1 inch = 44 miles. How many miles does 9 inches on the map represent
Answer:
9 inches on the map represents 396 miles.
Step-by-step explanation:
Here let's convert 44 miles to inches.
44 miles is 2787840 inches.
So according to the map, 1 inch = 2787840 inches.
We need to multiply both of these values by 9 to find out how many miles 9 inches represents.
1 inch = 2787840 inches
1 * 9 inches = 2787840 * 9 inches
9 inches = 25090560 inches.
Then convert back to miles.
25090560 inches = 396 miles.
That means, 9 inches on the map represents 396 miles.
Salim has a flock of 300 chickens, 15% of which are infected with a virus. He plans on taking an SRS of 7
chickens to test for the virus.
Which of the following would find the probability that exactly 4 of the 7 chickens sampled have the virus?
Answer:
(7/4)(0.15)^4(0.85)^3
Step-by-step explanation:
khan says it’s right
Twice x decreased by 4 is 36. What is x
Answer: x=16
Step-by-step explanation:
2x+4=36
Subtract 4 from both sides and get
2x=32
Divide both sides by 2 to isolate x and you get
x=16
Hellpppp me please this test is my whole life and if I don’t pass I’m ruined for life so please HELPPPP MEEEEE
Answer:
expanded form: 5 * 5 * 5
value: 125
Step-by-step explanation:
NEED ANSWERS ASAP
Raymond will roll a regular six-sided number cube. Calculate the probability of each event. Event Probability (as a fraction) P(even number) P(7) P(not 4 or 5)
Ex) There are six outcomes for rolling a die: 1, 2, 3, 4, 5, and 6. ... Formula for Theoretical Probability. P (event) = outcomes possible of number ... Write the probability as a fraction. Ex) P(3). Ex) P(3 or 4). Ex) P(even). Ex) P(4) ... Ex) Mr. Hayes tossed a coin 12 times to determine whether or not it would land on hands or tails.
Videos
Which expression is equivalent to this: "3 multiplied by z"?
Answer:
3z
Step-by-step explanation:
When you write a number followed by a variable with no operation in between them, it means multiplication.
3 multiplied by z is 3 * z, but you can write it without the multiplication sign simply as 3z.
Write rational numbers between 0 and 1
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please also say how did you solve it
this question has 20 points
I will mark you as Brillant if you answer it
Step-by-step explanation:
Multiply any number with their denominator
0/1×20=0/20
1/1×20= 20/20
Now,
3/20,5/20,6/20,15/20,18/20.....
help please!! | no links
The Martinez family ordered a large pizza pie for dinner. After everyone ate, one slice was left in the box forming a 75∘angle. Use the provided protractor below to explain how to construct a 75∘angle.
Answer:
,,,,,,,,,,,,,,,,,,,,,
HAiiiiiiii help T-T...
it will be helpful
Answer:
The popsicle stick is 11 and 6/10 inches and 4.9 centimeters.
The pencil is 7 and 3/10 inches and 2.14 centimeters.
The paperclip is 6 and 3/10 inches and 2.8 centimeters.
Step-by-step explanation:
Just look at where the red dotted lines are
hope this helps
Solve the inequality for w.
4+4ws-16
Simplify your answer as much as possible.
Answer:
The answer is 4ws - 12
Step-by-step explanation:
1) Collect like terms.
[tex]4ws + (4 - 16)[/tex]
2) Simplify.
[tex]4ws - 12[/tex]
therefor, the answer is 4ws - 12.
in a drawer, there are 3 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace or, turn pick put a 2nd sock. What is the probability that you will pick a brown then black?
A) 12/81
B) 6/81
C) 8/81
I believe the answer is B) 6/81