Answer:
-2x+4
Step-by-step explanation:
-2(x-3)-2
-2x+6-2
-2x+4
A cyclist travels at an average speed of 13 mph for 3 hours.
How far did she travel in miles?
Answer:
39 miles
Step-by-step explanation:
We know that a cyclist travelled at an average rate of 13 miles per hour for 3 hours and are asked to how far she travelled in miles.
To solve, we need to take into mind that for three hours, the cyclist drove 13 miles per hour.
Meaning that for every hour, 13 miles were driven.
Therefore we need to multiply 13 by 3 to get our answer :
13 miles * 3hrs
39 miles
A shark is swimming 42 feet below sea level. If the angle of depression from a boat on the water to the shark is 23°, what is the horizontal distance between the boat and the shark? Show your work to receive full credit. Round to the nearest hundredth if necessary.
Answer:
BC ≈ 98.95 feet
Step-by-step explanation:
From the figure attached,
A shark is swimming 42 feet below sea level at point A and a boat on the water is at point C.
If the angle of depression from the coat to shark is 23°,
tan(23°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(23°) = [tex]\frac{AB}{BC}[/tex]
BC = [tex]\frac{AB}{\text{tan}(23)}[/tex]
BC = [tex]\frac{42}{\text{tan}23}[/tex]
BC = 98.947
BC ≈ 98.95 feet
Simultaneous equations
2x+4y=1
3x+5y=7
Answer:
x = 11.5, y = -5.5.
As an ordered pair this is (11.5, -5.5).
Step-by-step explanation:
2x+4y=1 Multiply this by 3:
3x+5y=7 Multiply this by -2.
6x + 12y = 3
-6x - 10y = -14 Adding these 2 equations:
0 + 2y = -11.
y = -11/2
y = -5.5.
Now plug this into the first equation:
2x + 4(-5.5) = 1
2x = 1 + 22
x = 23/2
x = 11.5.
somebody please help me in this question, I’ll give you brainlyest and giving you 20 points :)
Answer:
Step-by-step explanation:
Noice....
6(2y+6)=4(9+3y)
divide both sides by 2
6(2y+6) / 2 = 4(9+3y) / 2
then after simplification
3(2y+6) = 2(9+3y)
6y + 18 = 18 + 6y
w t hell
it cant be solved
it can be but i think its misprinted
Connie received an amount of money, m, for her birthday. She went to the mall and spent $25 of her birthday money. Which expression represents how much money she has now?
A
m÷25
B
m−25
C
25+m
D
25−m
Answer:
B. m - 25
Step-by-step explanation:
I) Since Connie spent the money, $25 would be deducted, or subtracted.
II) Since m represents her birthday money, the final expression would be m - 25. So the answer is B.
what is the answer for 2x+6y+7x
Answer:
9x + 6y
Step-by-step explanation:
for the graph, which are possible functions of f and g?
Answer:
f= 3ˣ
g= (1/3)ˣ
Step-by-step explanation:
Work out the area of a square with base = 1cm
Answer:
the area of the square is 1cm^2
Step-by-step explanation:
The computation of the area of the square is given below:
As we know that
Area of the square = side^2
Also in the square four sides are equal
So
= 1cm^2
= 1cm^2
hence, the area of the square is 1cm^2
This I need help ur help
Answer:The answer is -4
Step-by-step explanation:-4+-5=-9
Answer:
-4
Step-by-step explanation:
your basically adding
How long will it take for a certain population of fish to triple if the relative growth rate is 45% per year?
Answer:
n = 3 Year (Approx)
Step-by-step explanation:
Given:
Growth rate (r) = 45% = 0.45
Find:
Number of year for 3 times of population (n)
Computation:
Assume;
Current population = P
So,
New population = 3P
A = p(1+r)ⁿ
3P = P(1+0.45)ⁿ
3 = (1.45)ⁿ
n = 2.96 year
n = 3 Year (Approx)
Jeremy received a Bill with a balance due of 25.60
Answer:
6.40$
Step-by-step explanation:
HOPE THIS HELPS
PLZZ MARK BRAINLEIST
write the expression in radical form. 2 4/5
Answer:
its C i believe i put it in a calculator and it gave me that answer
a + b + c) = (a + b) + C
propertie
Answer:
Commutative Property its is....Can y’all help with this question plz
i need help ill give brainleyst
Please answer ASAP!!
6.7.30
What is the perimeter of parallelogram WXYZ? It’s not 25 I’ve tried that.
What is -9r+10r simplified?
-4(9r+10)+5(10r+7)
Multiply the first bracket by -4
Multiply the second bracket by 5
(-4)(9r)(-4)(10)
=-36r-40
(5)(10r)+(5)(7)
=-50r+35
-36r-40+50r+35
-36r+50r-40+35 ( rearranging)
14r-5
Answer: 14r-5
Answer:
This is really simple, the answer is 1r, or just r
Step-by-step explanation:
this can also be seen as 10r-9r
Two similar triangles are shown. What is the measure of ∠P?
Answer:
68.2
Step-by-step explanation:
if the triangles are similar then all of the angles are the same. The only thing that changes is the side lengths.
Answer:
[tex]63.2[/tex]°
Step-by-step explanation:
since the triangles are similar they have identical angle measures are the same
however you could solve it this way too:
[tex]A+B+C=180[/tex]
all measures of a triangle add up to 180
[tex]23.8+90+C=180[/tex]
[tex]116.8+C=180[/tex]
[tex]C=63.2[/tex]
Fill in the blank.
19/2 =
Answer:
9.5
Step-by-step explanation:
Answer:
9 1/2
Step-by-step explanation:
or 9.5 depending on which way they want the answer
You have to divide 19 and 2 and you get your answer
In circle o, which term correctly identifies line XY?
Аtangent
B chord
с secant
D diameter
Answer:
secant
Step-by-step explanation:
what property is 37 • 2 • (-5 + 5 + 1/2)
Answer:
37
Step-by-step explanation:
74*(-5+5+1/2)
74*(1/2)
37
Should I use a calculator for this math homework? He didn't say if we could or not.
Answer:
If it helps, sure. You shouldn't get in trouble if he didn't clarify, just make sure to show your steps and how you got your answer.
Step-by-step explanation:
Lola already has 6 pennies, and she plans to save more. In her first week of saving pennies, she will save twice the
number of pennies that she already has. Each week after, she will save twice the number of pennies as the previous
week.
Which equation can be used to determine the number of pennies, p, Lola will save during week w of saving pennies?
Answer:
c
Step-by-step explanation:
A bakery uses 44 cups of flour to make 10 loaves of bread. How many cups of flour are there per loaf?
Answer: 4.4
Step-by-step explanation:
44 divided by 10
Answer:
4.4 cups of flour
Step-by-step explanation:
You would have to divide 44(cups of flour) by 10(loaves of bread) to get the amount of cups of flour for each loaf. 44/10=4.4
If one candy bar weighs 3 ounces, what is the weight of 11 candy bars?
A. 1 lb 8 oz
B. 1 lb 15 oz
C. 2 lb
D. 2 lb 1 oz
E. 2 lb 8
Answer:
C. 2 lb
Step-by-step explanation:
11 x 3 = 33
33 oz = 2.0625 lb or 2 lb
Answer:
C
Step-by-step explanation:
I'm taking that test rn
A triangle has two sides of lengths 7 and 12. What value could the length of
the third side be? Check all that apply.
A. 17
B. 5
C. 7
D. 11
E. 9
DF. 3
Answer:
The length of the third side is 23
Step-by-step explanation:
All check
7, 17, 11, and 9 are the answerr
whats the property
someone plz help
Answer:
The property is the water cycle
Christy spent 25 of her money on a shirt. She has $21.75 left. How much did she spend on the shirt?
A. $8.70
B. $7.25
C. $14.50
D. $29
Christ spent a total amount of $ 14.50 on the shirt.
Finding the amount spent on the shirt
Here we use the linear equation concept to solve the problem.
Since we do not know the amount that Christ has assume that with a variable and form a linear equation using the data given.
Now solve the resultant equation for the value of the variable and find the amount spent by Christ on the shirt as given below
Here we have
Christy spent 2/5 of her money on a shirt.
She has $21.75 left
Let 'x' be the amount that Christy has
From the data,
Christy spent 2/5 of her money on a shirt.
Amount spent by Christy = 2/5 of x = 2x/5
Remaining amount = x - 2x/5
From the data,
Chrisy is left with $ 21.75
=> x - 2x/5 = 21.75
=> 3x/5 = 21.75
=> 3x = 108.75
=> x = 36.25
Amount the that she spent 2x/5 = 2 (36.25)/5 = 14.50
Therefore,
Christ spent a total amount of $ 14.50 on the shirt.
Learn more about Linear equation problems at
https://brainly.com/question/14238417
#SPJ1
HELP ASAP PLEASE! I need to write an equation of the line in slope-intercept form.
Answer:
y=2x-2
Step-by-step explanation:
The slope-intercept form is known as y=mx+c
y= the y coordinate
m= the gradient/slope
x= the x coordinate
c= y intercept
The y intercept is when the line crosses the y axis. The graph shows the y intercept is (0,-2). This means our value of c is -2.
Now we must find the value of m. The value of m is the slope of the graph. I usually figure out the slope by doing the change in y / change in x (by counting along how many squares). The change in y is two squares up and the change in x is one square along.
Therefore, the gradient would be 2/1. This equals 2 (so m=2).
Now, we can easily substitute these values into the equation given earlier. Therefore, the equation would be y=2x-2.
Suppose f(x) = 5x - 2x... Find f(2)