Answer:
a) the average of change for the number of bacteria from 0 to 6.8 hours is
[tex]the \: average \: of \: change \: = \frac{2292 - 1000}{6.8 - 0} = 190 \: bacteria \: per \: hour[/tex]
b)
[tex]the \: average \: rate\: of \: change \: from \: 10.2 \: to \: 13.6 \: hours \: = \frac{5080 - 3856}{13.6 - 10.2} = 360[/tex]
Which of the following expressions is equivalent to -6?
A: -9 + 15
B: 9 - (-15)
C:-9 - 15
D: 9 + (-15)
determine if the pair of triangles are similar im begging plz help
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
because the lines go in the order of the side than the angle and than the other side- and the lines also determine if the two sides are equal- i dont know if that makes sense
Amy bakes x cakes.
Barry bakes four times as many cakes as Amy.
Ceri bakes 12 more cakes than Amy.
They bake a total of T cakes.
Find a formula, in terms of x, for the total number of cakes.
Give your formula in its simplest form
Answer:
6x+12=T
Step-by-step explanation:
Amy bakes x cakes.
Barry bakes 4x.
Ceri bakes x+12
So the total is 6x+12=T
5x +4 = -6 ???? confused a lil
Answer:
5x+4=-6
5x=-6-4
5x=-10
x=-10/5
x=-2
Step-by-step explanation:
Answer:
[tex] \sf \: x = - 2[/tex]
Step-by-step explanation:
Now we have to,
→ Find the required value of x.
The equation is,
→ 5x + 4 = -6
Then the value of x will be,
→ 5x + 4 = -6
→ 5x + 4 - 4 = -6 - 4
→ 5x + 0 = -10
→ 5x = -10
→ 5x ÷ 5 = -10 ÷ 5
→ [ x = -2 ]
Hence, the value of x is -2.
Help please!
Thanks.
Answer:
6a is the answer I believe.
If i'm wrong correct me in comments.
What is the volume of a cone with a diameter of 12 inches and a height of 4
inches? *
Answer:
48 cubic inches
Step-by-step explanation:
Answer:
192π
and or [tex]603in^{3}[/tex]
Step-by-step explanation:
Solve for x.
..................................
Answer: For 7x-11 is There are no like terms.
I don’t know if you want me to solve because I did “Answer: There are no like terms.” or how you want it because the picture you show it confusing
For 4x-2 is Factor 4x−2
4x−2
=2(2x−1)
Answer:2(2x−1)
Step-by-step explanation: Hope this help :D
If a Tv screen is 20in wide and 15in high, what is the length?
Please help! Math is my worst subject
Answer:
it's answer is 73°
Step-by-step explanation:
< DCB = 50°
< ACB = x
< CAB = 57°
< ABC = < DCB = 50° {Being alternate angles }
Now
x + 50° + 57° = 180° { being sum of angles of triangle }
x + 107° = 180°
x = 180° - 107°
Therefore x = 73°
Hope it will help :)❤
What is the solution of 1/2 x + 3x = 14?
A Cylinder with
a volume of 27π
in 3 and a height
of 3 in. What is
the radius?
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the concept of Surface Areas and Volume.
==> Volume of Cylinder = πr^2h
==> 27π = πr^2(3)
==> 27 = r^2 (3)
==> r^2 = 9
==> r = 3 inch
hence the radius is 3 inches.
In a class-test, the ratio of students passing in English only and Maths only is
2:3. Out of 314 students 15 were absent, 75 failed in both the subjects and
24 passed in both the subjects.
(i)How many students passed in English?
(ii) How many students passed in Mathematics?
Answer:
(¡)...2 + 24
= 26
¡¡)..3+24
27
Mariah borrowed $1200 to buy a new computer system. She paid the simple interest loan off in 24 monthly payments of $56 each. What was the interest rate of this loan? a.2%
b.6%
c.4.4%
d.7%
Answer:
B. 6%
Step-by-step explanation:
Answer:
6%
Step-by-step explanation:
Her 24 monthly payments total 24 x $56 = $1344
That means that $1344 - $1200 = $144 is just interest. What percent is this of her loan amount? Divide to find out:
144 / 2400 = 0.06 = 6%
Sally plays a game for 1 and 5-sixths hours. Judy plays a game 1-half hour longer than Sally. Question How many hours does Judy play her game? Move numbers to the boxes to show the answer. If there is no whole number, put a 0 in the first box.
Answer:
2 1/3 hours or 2 hrs, 20 min
Step-by-step explanation:
1 5/6 + 1/2
make mixed number into improper fraction and change 1/2 to 3/6
11/6 + 3/6 = 25/6
14/6 equals 2 2/6 which simplifies to be 2 1/3 or 2 hrs, 20 min
A . 4
B . 16
C . 8
D . 2
Answer:
c
Step-by-step explanation:
An isosceles triangle has base length 18 cm and height 4cm what is the approximate length of the two other sides
Answer:
The approximate length of the two other sides is 10cm
Step-by-step explanation:
Given
[tex]Base\ Length = 18[/tex]
[tex]Height = 4[/tex]
Required
The length of the two other sides
Divide the triangle to 2 (See attachment)
Considering one of the triangles, we have:
[tex]l^2 = 4^2 + 9^2[/tex]
[tex]l^2 = 16 + 81[/tex]
[tex]l^2 = 97[/tex]
Take square roots
[tex]l = \sqrt{97[/tex]
[tex]l = 9.8488[/tex]
[tex]l = 10[/tex] --- approximated
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help
Answer:
38°
Step-by-step explanation:
The measure of angle NPM is 38°.
➠ ∠MPJ + ∠LPM = 180°
➠ ∠MPJ + 90° = 180°
➠ ∠MPJ = 180° – 90°
➠ ∠MPJ = 90°
∠NPM = ∠MPJ – ∠JPN
➠ ∠NPM = 90° – 52°
➠ ∠NPM = 38°
∴ Required answer :∠NPM = 38°Which points reflected of each other across both exes PLEASE HELP ASAP
Answer:
I am pretty sure it is (-2,8) and (2,-8)
Step-by-step explanation:
I think my answer is correct because it goes from Quadrant 1 into 4. Other answers are just I quadrant away.
PLEASE HELP ME AND BE QUICK
Chantal has an outstanding balance of $256.84 on a credit card. The minimum monthly payment is 13% or $20.00, whichever is more.What is the minimum monthly payment?
Answer:
minimum is $20
Step-by-step explanation:
.13 x 256.84 = 33.39
$33.39 is less than $20.00
Which expression is equivalent to 14 x minus 21 over 7 ?
Answer:
-42
Step-by-step explanation:
Which expression is equivalent to 14 x minus 21 over 7 ?
Mathematically this expression is written as:
= (14 × -21)÷ 7
= (14 × -21)/7
= - 294/7
= -42
Therefore, the equivalent of the above expression is calculated as -42
The floor of a room is 6 m by 4 m, and its height is 3 m. Find the distance from
a corner point on the floor to the opposite corner point on the ceiling.
Answer:
6 x 4 x 3 = 72
Step-by-step explanation:
Identify the time being asked.
Given
12-hour
24-hour
1.) Half past midnight
2.) 2 hours to 9:00 p.m.
3.) 5 to 23:00 H
4.) Quarter after 00:00 H
5.) 3 hours and 2 minutes before 8:40 a.m.
Answer:
honestly,I also really didn't know the ans so I took it from internet. hope you won't mind
Answer:
1.) 12:30am
2.) 7:00pm
3.) 22:55 or 10:55pm
4.) 12:15am
5.) 5:38am
Step-by-step explanation:
Not me having to turn the clock on my phone to military time to make sure my answers were right XD
A rectangular logo is made up of 3 squares and 8 small squares the length of the rectangle is 36 cm
Find the area of the logo
Answer:
The total area is 594cm.²
Step-by-step explanation:
The top and bottom each have a length of 36 cm.
Blue side:
36/3= 12cm. (36/3 for the length of one side of a blue square)
12*12= 144cm.² (area of one blue square)
144*3= 432cm.² (area of all the blue squares)
Orange side:
36/8= 4.5cm. (the length of one side of an orange square)
4.5*4.5= 20.25cm.² (the area of one orange square)
20.25*8= 162cm.² (the area of all the orange squares)
Total area:
432+162= 594 cm.²
I hope this makes more sense, have a great day :D
The distance, y, in miles, traveled by a car for a certain amount of time, x, in hours, is shown in the graph below:
Answer:
It travels for 1 hour, then stops for 1 hour, and finally travels again for 3 hours.
Need ALL of the RIGHT answers for this math quiz pls. ASAP
Answer:
1.54cm 2. 112m 3. 576cm 4. 52ft
Step-by-step explanation:
Quadrilateral JKLM has side lengths of JK = 2y + 3, KL = 8x – 10, LM = 5y – 6, and JM = 3x + 20. Find the values of x and y that make quadrilateral JKLM a parallelogram. A. X = 6, y = 6 B. X = 6, y = 3 C. X = 13, y = 3 D. X = 2, y = 1
Answer:
(6, 3)
Step-by-step explanation:
Note that the opposite side of parallelogram are congruent, hence;
Jk = LM
2y + 3 = 5y - 6
2y - 5y =-6 - 3
-3y = -9
y = 9/3
y = 3
Similarly;
KL = JM
8x – 10 = 3x+20
8x - 3x = 20 + 10
5x = 30
x = 30/5
x = 6
Hence (x,y) is (6, 3)
Answer:
B.
Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
20 points.
Round off x to the nearest tenth.
Answer:
[tex]x=15.3[/tex]
Step-by-step explanation:
In right triangles only:
The sine of an angle is equal to its opposite side divided by the hypotenuse. (o/h)
The cosine of an angle is equal to its adjacent side divided by the hypotenuse. (a/h)
The tangent of an angle is equal to its opposite side divided by its adjacent side. (o/a)
Therefore, we have the following equation:
[tex]\sin 58^{\circ}=\frac{x}{18},\\x=18\sin 58^{\circ}\approx \boxed{15.3}[/tex]
Alternative:
[tex]\cos 32^{\circ}=\frac{x}{18},\\x=18\cos32^{\circ}\approx \boxed{15.3}[/tex]
PLEASE ANSWER!!!!!!!!!!
Answer:
The answer would be C, or 3
Step-by-step explanation:
2x with a power of 2 to the power of 3 is 6x, with a power of five, plus y to the fower of 3.
137°
X-25
Find the value of X