1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gizmo_the_mogwai [7]
3 years ago
15

PLEASE HELP! WILL MARK BRAINLIEST IF RIGHT AND 100 POINTS! THREE QUESTIONS!

Mathematics
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

1.) she will spend $13.60 in two weeks

2.) $3,174.75 because 22.5 x 34 x 4.15 = 3,174.75

3.) 1003.75 miles. Explanation: if we know that there's 365 days in a year and Eric wants to walk 2.75

Step-by-step explanation:

You might be interested in
Lisa has three classes that each last 50 minutes what is the total number of minutes that the classes last
gulaghasi [49]
The Answer is B Because 50 x 3 = 150... Weird Pic thou
7 0
3 years ago
Read 2 more answers
The position of an open-water swimmer is shown in the graph. The shortest route to the shoreline is one that is perpendicular to
Stolb23 [73]

Answer:

Step-by-step explanation:

To define the perpendicular line we need to first know the slope of the reference line graphed.

m=(y2-y1)/(x2-x1) we have points (0,5) and (2,1)

m=(1-5)/(2-0)

m=-4/2

m=-2

For lines to be perpendicular their slopes must satisfy

m1m2=-1, we have a line with a slope of -2 so

-2m=-1

m=1/2, so our perpendicular line is so far

y=x/2+b, it must have point (3,2) so we can solve for b

2=3/2+b

b=1/2, so the swimmer will travel along the line

y=x/2+1/2

6 0
3 years ago
Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.
dmitriy555 [2]

see the attached figure to better understand the problem

we have that

cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

cos (A)=(AC/AB)\\AC=AB*cos(A)

substitute the values in the formula

AC=12*(1/5)\\ AC=2.4\ units

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}

substitute the values

BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units

Step 3  

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

BD^{2} =DC^{2}+BC^{2}

substitute the values  

BD^{2} =2^{2}+11.76^{2}

BD=11.93\ units

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0
3 years ago
Read 2 more answers
What is r in this equation? <br>πr^2=42π
kupik [55]
R in this equation refers to the radius

{\pi r}^{2}  = 42\pi \\  {r}^{2}  =  \frac{42\pi}{\pi}  \\ r =  \sqrt{42 } \\ r = 6.480740698
4 0
3 years ago
Plz get me the correct answer or u will be reported. 15 points for correct answer. Thx.
allochka39001 [22]

Answer:

D

Step-by-step explanation:

correct answer, thanks for 15 pts

7 0
3 years ago
Read 2 more answers
Other questions:
  • 5x+9=17x-4x+81 what is the answer?
    14·1 answer
  • Which option below best describes why the domain of g(x) = 5–x is all real numbers but the range of g is not all real numbers? T
    14·1 answer
  • 10 red peppers for $5.50
    11·2 answers
  • Sarah ran 2 miles and Jaime ran 15, 840 feet. How many miles did they run together? (The conversion factor is 5280 feet/mile.)
    13·1 answer
  • Solve <br> y= -2x + 9<br><br> y= 4x -3
    13·2 answers
  • Which of the following are remote interior angles of 6? <br> Check all that apply.
    13·2 answers
  • Hey so I just got this but do any of you know what is -5-(-3)?
    14·1 answer
  • What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x?
    10·2 answers
  • A line goes through the points (8,9) (-2,4)
    8·1 answer
  • Kim preformed a transformation on rectangle ABCD to create image A’B’C’D’, as shown in the figure below
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!