Answer:
[tex]b = 19[/tex]
Step-by-step explanation:
1) Add 7 to both sides.
[tex]b = 12 + 7[/tex]
2) Simplify 12 + 7 to 19.
[tex]b = 19[/tex]
Therefor the answer is, b = 19.
Answer:
Sample Response
Step-by-step explanation:
Use the inverse operation to isolate the variable. Undo the subtraction of 7 by adding 7 to each side of the equation. – 7 + 7 = 0, and 12 + 7 is 19. The solution is b = 19. Check the solution by substituting 19 for b in the original equation, and then simplify. 19 – 7 is 12 and 12 = 12 is a true statement, so 19 is the solution.
help its ratios please ty no guessing
Answer:
4:3
Step-by-step explanation:
4 pennies
3 quarters
Answer:
4:3
Step-by-step explanation:
Our traits are determined by our genes and these traits are inherited. Where do our genes come from?
A)
our father
B)
our mother
from both parents equally
D)
part from our mother but mostly from our father
Science
The probability of rolling a 2 on a number cube is 1/6 . If you were to roll the
cube 30 times, you would expect to get a 2 around 5 times (1/6 · 30 = 5).
You simulate 30 rolls. How many 2s would make you question your model?
A. 14
B. 5
C. 2.
D. 8
Answer: a
Step-by-step explanation:
If a cube is rolled by 30 times then 5 times 2s will make the question the model.
What is probability?Probability is the occurrence of any event or how likely an event can happen.
Mathematically probability = the number of desired outputs by the number of the possible outcomes.
In the number cube, there are six faces above each of them written one to six later.
The probability of getting 2 at once time will be 1/6 since the number of desired output is only one and possible outcomes are six.
Mathematically(Theoretically) if we roll the cube 30 times then the number of 2s will be 1/6 × 30 = 5 times.
If experimentally if we roll dice and the number of 2s came 5 times then our question will become a model.
So by 5 times, 2s will make the question model.
For more information about the probability
https://brainly.com/question/743546
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Help me please will mark
Answer:
d
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Which represents the interval for any local max(s)?
a: (- ∞, - 1) U ( 1, 5)
b: (0, ∞)
c: (1, 5)
d: (0, 4)
Answer:
c
Step-by-step explanation:
HELP ME PLASE IM BEGGING YOU
Answer:
5x+4
Step-by-step explanation:
(7x+1)-(2x-3)
Remove parentheses
=7x+1-(2x-3)
=7x+1-2x+3
Simplify
7x+1-2x+3=5x+4
a belt and a wallet cost $42.7 belts and 4 wallets cost $213.If the cost of a belt is $x and the cost of a wallet is $y, form two linear equations in x and y and solve them to find the cost of each item
hope it helps yah T-T
1 and 1\8 plus 1 and 1\4
Answer:
you answer will be 2 3/8
Step-by-step explanation:
please give brainliest
Answer:
19/8
Step-by-step explanation:
What is the length of segment of A’B?
Answer:
8
Step-by-step explanation:
8
if both triangles are the same, the lengths will be the same
find the slope of the line passing through the points (5, 6) and (5,-8)
Answer:
Undefined
Step-by-step explanation:
Slope is equal to the change in y over the change in x.
m = (y₂ - y₁) / (x₂ - x₁)
Let your points (5, 6) be (x₁, y₁) and (5,-8) be (x₂, y₂). Therefore you have
m = (-8 - 6) / (5 - 5) = -14 / 0
Dividing by zero will lead you to have an undefined slope
Solve for x. Round to the nearest tenth.
Answer:
Hope that answers your question
!!!!!!Help Me Plz!!!!!!
Answer:
angle ABE = 55 degrees
Step-by-step explanation:
(3x-8) + (x+14) = 90
4x+6 = 90
4x = 84
x = 21
angle ABE = 3(21)-8 = 55
Simplify (2a²b⁵)(-3ab-⁴)
A. -6a³b
B. 6a³b
C. 6a³
- ———
b
D. 6a³
———
b
help.
Answer:
A
Step-by-step explanation:
because when we multiply two powers the power will add
Sal is tiling his entryway. The floor plan is drawn on a unit grid. Each unit length represents 1 foot. Tile costs $1.55 per square foot. How much will Sal pay to tile his entryway? Round your answer to the nearest cent. (hundredths place)
Answer:
He'll pay $110.25
Step-by-step explanation:
To find the area, we divide the shape into two parts at approximately the middle line. The top shape is a trapezoid of base length 7 feet and height 6 feet, while the bottom shape is a parallelogram with one side equal to 4 feet.
Area of trapezoid = (7 + 4)/2 x 6
Area of trapezoid = 33 sq ft
Area of parallelogram = 4 x 4
Area of parallelogram = 16 sq ft
Total area = 49 sq ft
Cost = 2.25 x 49
Cost = $110.25
2. Evalute (3a +6b)³
Answer:
Here you go Hope it helps!!
Step-by-step explanation:
PLEASE HELP FIND THE SUM OF THE FUNCTION ON THE GRAPH!! Easy and Quick.
Your 6 and 1/2 year investment of $1,450 at 5.4% compounded brought you a grand total of?
find angle sqr and pqr
Answer:
The answer is number C
Step-by-step explanation:
[tex](2x + 6) + (10x - 5) = 61 \\ 12x + 1 = 61 \\ 12x = 60 \\ x = 5 \\ then \\ m < sqr = 2 \times 5 + 6 = 16 \\ m < pqr = 10 \times 5 - 5 = 45[/tex]
If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything
Look at the picture and thanks
Find the measure of each interior angle and each exterior angle of a regular 90-gon.
Answer:
Interior angle
176 degrees
Exterior
4 degrees
Step-by-step explanation:
Exterior angle
For any polygon, the measure of the total exterior angle is 360
To get the individual exterior angle, we divide the total by n, which is the number of sides, 90 in this case
We have this as;
360/90 = 4
Interior
To get the measure of each interior angle, we use the formula below;
[(n-2)180]/n
n in this case is 90
So we have
[(90-2)180]/90
= (88 * 180)/90
= 2 * 88 = 176
A bookstore pays $8 for a novel. They add a $3 markup to the price. What is the
percent of markup?
Answer:
37.5 percent markup
Step-by-step explanation:
hope this helps
Question A bookstore pays $8 for a novel. They add a $3 markup to the price. What is the percent of markup?
Answer: 37.5%
-Tay did this
In a certain colony of bacteria each divides into two every hour. How many will be produced from a single bacillus if the rate of division continues for 4 hours
Answer:
16
Step-by-step explanation:
The number of bacteria in 4 hours = number of bacteria that divides in one hour ^ total number of hours
2^4 = 16
Find the value of x in the following figure
Answer:
8
Step-by-step explanation:
If a + 8= 16 then a =
Answer:
8
Step-by-step explanation:
16-8 = 8
Answer:
a = 8
Step-by-step explanation:
8 + 8 = 16 so a = 8
brainly's answering thing is broken :/
What is the equation of the line that passes through the point (-5,5) and has a
slope of -1?
Answer:
y = - x
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - 1 , then
y = - x + c ← is the partial equation
To find c substitute (- 5, 5 ) into the partial equation
5 = 5 + c ⇒ c = 5 - 5 = 0
y = - x ← equation of line
Plz help due tomorrow
Answer:
You have to do Divison.
Step-by-step explanation:
Hope this can help you!
Please help.
Name the segments parallel to the given segment :/
What is the value of X?
Answer: 75
Step-by-step explanation:
as a ratio in simplest form, 33.5% is express as
Answer:
335/1000
Step-by-step explanation:
33.5% is .335 so 335/1000 is 33.5%
20 POINTS! WILL MARK BRAINLIEST!
If the equation for the diagram below is 25=13+2r, what should go in the blank circle?
Step-by-step explanation:
[tex]25 = 13 + 2r \\ 25 - 13 = 2r \\ 12 = 2r \\ \frac{12}{2} = r \\6 = r[/tex]