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
Elza [17]
3 years ago
6

Solve for w (4w-5)(7-w)=0

Mathematics
1 answer:
nataly862011 [7]3 years ago
7 0

Ask: When will (4w-5)(7-w) equal zero?

When 4w-5=0 or 7-w=0

Solve each of the 2 equations above

w = 5/4 , 7

You might be interested in
Find the exact value of cos(sin^-1(-5/13))
son4ous [18]

bearing in mind that the hypotenuse is never negative, since it's just a distance unit, so if an angle has a sine ratio of -(5/13) the negative must be the numerator, namely -5/13.

\bf cos\left[ sin^{-1}\left( -\cfrac{5}{13} \right) \right] \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{then we can say that}~\hfill }{sin^{-1}\left( -\cfrac{5}{13} \right)\implies \theta }\qquad \qquad \stackrel{\textit{therefore then}~\hfill }{sin(\theta )=\cfrac{\stackrel{opposite}{-5}}{\stackrel{hypotenuse}{13}}}\impliedby \textit{let's find the \underline{adjacent}}

\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{13^2-(-5)^2}=a\implies \pm\sqrt{144}=a\implies \pm 12=a \\\\[-0.35em] ~\dotfill\\\\ cos\left[ sin^{-1}\left( -\cfrac{5}{13} \right) \right]\implies cos(\theta )=\cfrac{\stackrel{adjacent}{\pm 12}}{13}

le's bear in mind that the sine is negative on both the III and IV Quadrants, so both angles are feasible for this sine and therefore, for the III Quadrant we'd have a negative cosine, and for the IV Quadrant we'd have a positive cosine.

8 0
3 years ago
In triangles ABC and LMN, ∠A ≅ ∠L, ∠B ≅ ∠M, and ∠C ≅ ∠N. Is this information sufficient to prove triangles ABC and LMN congruent
ipn [44]

Answer:

No

Step-by-step explanation:

No. We have 3 angles of triangle ABC congruent to 3 corresponding angles of triangle LMN. That is AAA. To use ASA, you need two angles and an included side. With three angles, you can prove the triangles similar, but not congruent.

5 0
2 years ago
Is a dodecahedron a 3 dimensional or a dodecagon a 3 dimensional ?
navik [9.2K]
Dodecahedron is a 3D shape, usually when it ends with hedron it is 3D.
8 0
3 years ago
Read 2 more answers
A number is added to the square of itself and the result is 90. Find all possible values for the number
kolezko [41]

Answer: 9

Step-by-step explanation: 9 x 9 equals 81 and 81 add 9 is 90

6 0
3 years ago
HELP ME PLEASSSSEE On a winter morning, the temperature before sunrise was -10℉. The temperature then rose by 1℉ each hour for 7
Vera_Pavlovna [14]

Answer:

3 degrees F

Step-by-step explanation:

if the temperature rose 1* for 7 hours, times 1 by 7. which is 7 and add to -10. which is -3. then, since the temperature rose by 2* for 3 hours, times 2 by 3 which is 6 and add to -3, which is 3.

i hope this helped?

3 0
3 years ago
Other questions:
  • What is 95 divided by 5?
    5·2 answers
  • If f(x) varies directly with x and f(x) = 40 when x = 8, find the value of f(x) when x = 2.
    15·1 answer
  • Simplify three to the negative ninth divided by three to the negative twelfth in decimal form.
    6·1 answer
  • A diver went 25. 65 feet below the surface of the ocean and then 16.5 Think it further down here then rose 12.45 feet right and
    6·1 answer
  • The graphs below are both quadratic functions. The equation of the red graph is
    12·1 answer
  • Which is the point-slope form of an equation for the line that passes through (0, –5) with slope 2?
    5·1 answer
  • Mandy made a circular flower garden with a
    15·1 answer
  • What is the approximate 47? Give your answer and explain why it is correct. HELP
    8·2 answers
  • HELP QUICK PLSSSSSS Distribute 8(4+x)
    10·2 answers
  • 5 points
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!