if f(x)= 5x -7, what is f(3)?
Answer:
8
Step-by-step explanation:
f(x) = 5(3) - 7
f(x) = 15 - 7
f(x) = 8
Can you help me with these two? Sorry!
Answer:
3. second
4. first
Step-by-step explanation:
find the exact value of x.
Answer:
9*√3
Step-by-step explanation:
The exact value of Sin60 = √3/2
Sin(60) = opposite side/ hypotenuse
hypotenuse = 18
√3/2 = x / hypotenuse
√3 / 2 = x / 18 multiply by 18
18 √3 /2 = x divide by 2
9 √3 = x
what is the answer to this
[tex]72 \div 9[/tex]
4x+15=75 in a number line
Answer:
x= 15
Step-by-step explanation:
4x+15=75
4x = 60
x = 15
will mark brainliest and rate 5/5
Answer:
Option D, $2.71
Step-by-step explanation:
Step 1: Figure out the height
[tex](5.4)^{2} + b^{2} = (17.2)^{2}[/tex]
[tex]29.16 + b^{2} = 295.84[/tex]
[tex]b^{2} = 266.68[/tex]
[tex]\sqrt{b^{2}} = \sqrt{266.68}[/tex]
[tex]b = 16.33[/tex]
Step 2: Figure out the area
[tex]A = \frac{5}{4} * tan(54) * a^{2} + 5 * \frac{a}{2} * \sqrt{h^{2} + (\frac{a * tan(54)} {2})^{2}}[/tex]
[tex]A = \frac{5}{4} * tan(54) * (8)^{2} + 5 * \frac{(8)}{2} * \sqrt{(16.33)^{2} + (\frac{(8) * tan(54)} {2})^{2}}[/tex]
[tex]A = 454.77[/tex]
Step 3: Figure out the price
[tex]454.77 * 0.006[/tex]
[tex]2.72862[/tex]
Answer: Option D, $2.71
Suppose you deposited $200 in a savings account 4 years ago. The simple interest rate is 2.1%. The interest that you earned in those 4 years is $16.80. Which of the following is/are true? Select all that apply.
A. r = 2.1%
B. t = 4
C. p = 16.80
D. l = 200
Find the product. Simplify the answer. 3/5 x 2/4 *
Answer:
3/10
Step-by-step explanation:
3/5 x 2/4
2/4 = 1/2
3/5 x 1/2
3 x 1 = 3
5 x 2 = 10
3/5 x 2/4 = 3/10
SOME ONE HELP PLZZ Find the answers to the following multiplication problems without using a calculator. Reduce
the product to their lowest terms and change improper fractions to mixed numbers.
3/4 x 7/8
1
0. Multi-Step Nathanial has a dog walking
business. He charges $3 for every 15 minutes
of walking. How much will Nathanial charge to
walk a dog for one hour?
Answer:
Nathanial will charge $12
Step-by-step explanation:
If he charges $3 per 15 minutes, one hour is 60 minutes. And 60 divided by 15 is 4 so you do 3x4 because he charges $3 per 15 minutes.
help me fast and i'll mark you brainliest please
Step-by-step explanation:
[tex]{14}^{2} = {10}^{2} + {x}^{2} \\ {x}^{2} = {14}^{2} - {10}^{2} \\ {x}^{2} = 196 - 100 = 96 \\ x = \sqrt{96} = 9.79 = 9.8[/tex]
Help ASAP
I’ll mark brainless
Answer:
C
Step-by-step explanation:
it lacks the inequality signs
If $20.18 Pesos is equal to $1 US dollar, tell me how much money Mr. P would have left if he had $100 US Dollars but spent $918 Pesos in groceries this past Christmas in Mexico with his family.
Answer:
Conversion rates US Dollar / Mexican Peso
10 USD 209.37500 MXN
20 USD 418.75000 MXN
50 USD 1046.87500 MXN
100 USD 2093.75000 MXN
Can you guys help I'm having trouble.
Answer:
given radius =6
Area of triangle =1/2*base*height
=1/2*6*6=18
area of quadrant =1/4πr^2
=1/4*22/7*6*6=22/7*9=198/7=28.2
area of shaded region =area of quadrant -area of triangle
=28.2-18=10.2
3w+16>6+4w
I’ll mark brainless
Answer:
w<10
Step-by-step explanation:
I am really tired and I dont feel like showing all my work, unless you want me to then just ask
Answer:
3w+16=0>6+4w=0
3w=-16>4w=-6
w=-16/3>w=-6/4
w=-16/3>w=-3/2
James works on his math work for 7/8 of an hour. He works on his science for 5/8 of an hour. How much longer does James work on math than on science? Enter your answer as a fraction in simplest form by filling in the boxes.
Answer:
1/4
Step-by-step explanation:which is 2/8 simplified
Write an equation in point-slope form of the line that passes through the point (
3,-1)
and has a slope of -2
Answer:
Look below.
Step-by-step explanation:
Point slope fromula: y-y1=m(x-x1)
First we have to plug in our points and slope into the formula.
3 will be plugged into x1 while -1 will be plugged into y1.
Since m represents slope we will plug in -2 into m.
Answer: y+1=-2(x-3)
Ms. Abreau is flying to Florida for the 90° Angle Conference, where the temperature s just right. Her plane is 1200 feet in the air and the runway is 3400 feet horizontally away. What is the angle of depression formed from the plane to the runway ? Round to the nearest tenth if necessary and just the number please in your answer, we know it is degrees.
Answer:
19.4 degrees
Step-by-step explanation:
Using the SOH CAH TOA trigonometry identity
Given
Height of plane from the ground= 1200 = adjacent
Horizontal distance = 3400ft = Adjacent
Required
angle of depression theta
tan theta = opp/adj
tan theta = 1200/3400
tan theta = 12/34
tan theta = 0= arccos.3529
theta= (0.3529)
theta = 19.4 degree
Hence the angle of depression is 19.4 degrees
a) BCD is a straight line.
Triangle ABC is equilateral.
CE = DE
E
Not drawn
accurately
А
320
B
С
Work out the size of angle x.
(4)
Answer:
x = 46°
Step-by-step explanation:
Since Δ ABC is equilateral then interior angles = 60°
Since CE = DE then Δ CDE is isosceles and the base angles are congruent, so
∠ ECD = [tex]\frac{180-32}{2}[/tex] = [tex]\frac{148}{2}[/tex] = 74°
BCD is a straight line, then the 3 angles on it sum to 180°, that is
60° + 74° + x = 180°
134° + x = 180° ( subtract 134° from both sides )
x = 46°
[Image: Vertical number line ranging from negative 5 to 5.]
On this number line, zero represents sea level. Plot the following points based on the description provided.
• 2.5 below sea level
Answer:
Step-by-step explanation:
uh anymore info??
Answer:
negative 2.5
Step-by-step explanation:
It is belove sea level, so it will be between negative 2 and negative 3 on a vertical number line.
I'll give u brainliest if u answer it
Answer:
i think its A
Step-by-step explanation:
But if i am incorrect i apologize
A
B
What is the distance between Points C and
D?
-4 units
4 units
6 units
2 units
Math homework PLS HELP What is the distance between points C and D?
As an estimation we are told 5 miles is 8km convert 112km to miles
Answer:
69.5935735 miles or about 70 miles
Step-by-step explanation:
need help to Find the apothem.
The apothem of a polygon, in this case a, can be found using the formula
Apothem=circumradius*cos(pi/sides)
Note in this problem, its a hexagon which makes the circumradius = to the side length since a regular hexagon can be split into 6 equilateral triangles.
a=47*cos(pi/6)=40.7 (approximation)
Hope it helped!
What is the length of YX?
Answer:
hi
Step-by-step explanation:
hi
Answer:
4cm.Step-by-step explanation:
Because,
Given two triangles are similar.
Ratio of their sides...
24/8 = 4
Therefore,
Side YX is corresponding to side NM.
Therefore, 12/YX = 4
YX = 4cm.
please helpp solve!!
If Angle M is y then,
Step-by-step explanation:
(6y) + (3y -6) + y = 180°
10y - 6 = 180
10y = 186
y= 18.6
Angle O = 3(18.6) - 6 = 49.8
Answer 49.8
I hope this helps!!!
What is the area of figure plz help
the area of the figure is 113
Plzzz helpppp itssss urgentt!!!!!!!!
Answer:
4) 40 Square inches
Step-by-step explanation:
You do 2 x 4 then divide by 2. after that you multiply by 4. Then you add the square which is 2 x 2
Gianna's family reserved a campsite for 5 nights for a family vacation. They paid $115 total for the reservation. Let c be the cost of the reservation per night. Write and solve an equation to find c.
Answer:
23$
Step-by-step explanation:
they slept there 5 nights, and paid 115 all together so you divide 115 by 5 to get the total cost for just one night, which is 23 dollars
Find the area. The figure is not drawn to scale. Hint: Find the sum of the areas of 2 triangles and 2 parallelograms.
Select one:
a. 188 in.2
b. 278 in.2
c. 322 in.2
d. none of these
Answer:
d. None of the above
Step-by-step explanation:
✔️Area of triangle 1 = ½*b*h
b = 11 in.
h = 3 in.
Area of triangle 1 = ½*11*3 = 16.5 in.²
✔️Area of triangle 2 = ½*b*h
b = 8
h = 9
Area of triangle 2 = ½*8*9 = 36 in²
✔️Area of parallelogram 1 = b*h
b = 11 in.
h = 9 in.
Area of parallelogram 1 = 11*9 = 99 in.²
✔️Area of parallelogram 1 = b*h
b = 9 in.
h = 11 in.
Area of parallelogram 2 = 9*11 = 99 in.²
✅Total area = 16.5 + 36 + 99 + 99 = 250.5 in.²