Answer:
Substitute y=5x+13
[ 5x+13=x+1 ]
For y=5x+13
Substitute x=−3
y=5(−3)+13
5(−3)+13=−2
y=−2, x=−3
Step-by-step explanation:
The price of a visit to the dentist is $50. If the dentist fills any cavities, an additional charge of $100 per cavity
gets added to the bill.
If the dentist finds n cavities, what will the cost of the visit be?
Answer:
I believe the answer will be 50+100n dollars
Step-by-step explanation:
n is the number of cavities so however many cavities there is, it gets multiplied by 100, in this case, it is 100*n which is 100n. So your final cost would be 50+100n dollars.
A jewelry box is a rectangular prism with a length of 9 inches and a height of 4 1/4 inches. The volume of the jewelry box is 283 1/2 cubic inches what is the width of the box?
Find the surface area.
Answer:
27
Step-by-step explanation:
(6×3)+(3×3)=27
18. 9.
A frame for a collage of pictures is in the shape of a trapezoid. The two bases are 15 inches and 20 inches. The height of the trapezoid is 12 inches. What is the area enclosed by the frame?
Answer:
A=210in^2
Step-by-step explanation:
A=b1+b2/2h
A=(15+20)/2(12)
A=35/2(12)
A=17.5(12)
A=210 in^2
What is an equation of the line that passes through the point
(
6
,
−
4
)
(6,−4) and is perpendicular to the line
2
x
−
y
=
5
2x−y=5
Answer:
x + 2y = -2
Step-by-step explanation:
Well let's examine the relation between x and y in a perpendicular line.
We can use the fact that for a line Ax + By = C, any line with equation Bx + (-A)y = D is perpendicular (swapping A and B gives a mirror image with respect to the line x=y and changing one of the signs gives a mirror image with respect to axis x or y. Those two together give a perpendicular line).
So we're looking for a line with equation x + 2y = D
We know what it passes through the point (6, -4), so let's input it into the equation x + 2y = D
6 + 2*(-4) = D
6 - 8 = D
D = -2
So the equation is x + 2y = -2
note that 2x + 4y = -4
or any other multiple also works.
Which expressions are equivalent to the one below? Check all that apply.
log 2 - log 6
A. log 3
B. log(2) + log
log(3)
C. log(3)
D. log 2
Answer:
c
Step-by-step explanation:
log2-log 6=log(2/6)=log (1/3)
log(2) + log(1/6)
log(1/3)
In 9.8326, in which place is the 6?
Answer:
the ten thousands place
Step-by-step explanation:
uh no explanation too straight forward.
Answer:
the ten-thousandths place
Step-by-step explanation:
A new car is purchased for 22400 dollars. The value of the car depreciates at 6.75% per year. What will the value of the car be, to the nearest cent, after 9 years?
Answer:
Answer: $11,942.29
Step-by-step explanation:
Let the value after 9 years be y
y = 22400 (0.9325)^9
y = 11,942.29Step-by-step explanation:
Find the surface area of a cube that has a side length of 5cm.
Can you help me?
Answer:
150cm²
Step-by-step explanation:
the equation is 6a² where a is the length of the edge
Answer:
150cm²
Step-by-step explanation:
If the side length of the cube is 5 then you take 5² to get the surface area of one of the face which is 25. Since a cube has 6 sides just 25×6 which is 150.
Is this circumference or Area ?
Plz help me plz I beg u no links olz
Answer:
This would be area because you are trying to find the total area that the sprinkler water touched and not the perimeter(circumference) of it
Hope this helps :)
HELP 15 POINTS PLEASE
Answer:
x^2 + 8x + 7 and x(x + 8) + 7
Step-by-step explanation
PLS FAST, WILL GIVE BRANLIEST IF ANSWER
Answer:
V=πr^2h=π·8^2·6≈1206.37158
Step-by-step explanation:
A:Write (⅔)² in expanded form,
B. And then evaluate.
Answer:
4/9
Step-by-step explanation:
(2/3)^2
(2/3) x (2/3)
2 x 2 is 4
3 x 3 is 9
4/9
Someone please please help with scale factors!!!! I will mark brainliest if right!
Answer:
See attachedStep-by-step explanation:
General knowledge to apply with similar questions
If the scale factor is k, then:
Perimeter is sum of 1 dimension, the scale factor is kArea is the product of 2 dimensions, the scale factor is k²Volume is the product of 3 dimensions, the scale factor is k³A triangle has angle measurements of 108°, 30°, and 42°. What kind of triangle is it?
Equilateral
Isosceles not Equilateral
Scalene
it is a scalene triangle
Step-by-step explanation:
equilateral triangle has 3 equal sides, isosceles triangle has two equal sides and scalene has 3 three different angle measurement
300$ at 6% for 2 yrs what is the simple interest
Answer:
Simple interest after 2 year = $36
Step-by-step explanation:
Given:
Amount invested = $300
Number of year amount invested = 2 year
Rate of interest per year = 6% = 6/100 = 0.06
Find:
Simple interest after 2 year
Computation:
Simple interest formula;
Simple interest = [Amount invested][Rate of interest][Number of year]
Simple interest after 2 year = [300][0.06][2]
Simple interest after 2 year = [18][2]
Simple interest after 2 year = $36
Bernie and Sarah go bowling together. The table shows their scores for the past eight weeks.
Bowier
Scores
Bernie 90, 110, 115, 120, 118, 130, 124, 125
Sarah 100, 120, 110, 105, 95, 125, 170, 155
Choose all the true statements about the scores.
A. Sarah has the same median score as Bernie.
B. Bernie has the same range of scores as Sarah.
C. Sarah has a greater median score than Bernie.
D. Bernie has a greater median score than Sarah.
E Sarah has a greater range of scores than Bernie.
Answer:
C
Step-by-step explanation:
porque sarabtiene más puntos que Bernie
The equation of a circle is (x−2)2+(y−12)2=64 . What is the circle's center? Enter your answer by filling in the boxes.
Answer:
The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle.
i also provided with a chart i dont know if it will help
Which of the following equations relates the radius of a circle to its diameter? A) 2r = d. B) 2d =r 1 2 A = ir?
Answer:
A
Step-by-step explanation:
The difference between two numbers is 10 and their sum is 20. Find the biggest number.
Answer:
15
Step-by-step explanation:
x - y = 10, then x = 10 + y
x + y = 20
substitute for x:
10 + y + y = 20
2y = 10
y = 5
x = 10 + 5 = 15
Answer this question to get marked as barinliest!!!!!
Answer:
D- 30 square units
Step-by-step explanation:
5 times 12 =60
60/2= 30
I NEED HELP ON THIS PLZZ!! WILL MARK BRAINLIEST
Answer:
C i think
Step-by-step explanation:
you do 13x90 then divide by 5x
Answer: x=12
Step-by-step explanation:
We will use the Pythagorean Theorem since we know two sides and it is a right triangle
Pythagorean Theorem is a^2+b^2=c^2
a=5,b=x, c=13
(5)^2+(x)^2=(13)^2
25+(x)^2=169
Subtract 25 from both sides to start solving for x
(x)^2=144
Take the square root of both sides and get x=12
x=12
I need some help with this
Answer:
a. 121
b.2
Step-by-step explanation:
a.
33/3×11>11
11×11>11
121>11
b.
5×2/8<5
10/8<5
1.25<5
someone do this real quick for me
Answer:
295.68
Step-by-step explanation:
I really need help on this i dont know how to do it.
Answer:
Step-by-step explanation:
25x = 300
Rearrange to solve
x = 300 divided by 25 = 12
Hope this helps
Which inequality is represented by a number increased by 5 is less than 7.
Answer:
x + 5 < 7
Step-by-step explanation:
Which is a diagonal through the interior of the cube?
AH
BE
CH
FG
please answer fast, this is urgent no explanation need just list answer 1,2,3etc. thanks :)
Answer:
Hi There!
Step-by-step explanation:
Your Answers Are:
1: 19.3 CM2: 273 CM3: about 45-65 degrees4: 15 CM5: 25 CMIts hard to work w/o a ruler or a protractor, so these might be incorrect.
If this helps, though, please give me a thanks!! ^^
- abakugosimp
hi please helpppppppp
Answer:
The answer is C
Step-by-step explanation:
Hope it helps:)))
Can i have brainy plzzz
14.
Given that sin θ= 1 / √2, we want to find the value of tan θ.
First, find the value of θ.
Answer:
value of tan θ = 1
Step-by-step explanation:
To find θ do the asin of 1/√2
θ = asin (1/√2)
θ = asin (0.707106781)
θ = 45
and then to find tan θ, do tan 45
tan 45 = 1