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
attashe74 [19]
3 years ago
12

Which statement must always be true?

Mathematics
1 answer:
Gennadij [26K]3 years ago
6 0
the statement c will always be true in the end
You might be interested in
suppose a parabola has an axis of symmetry at x = -8, a maximum height of 2, and passes through the point (-7, -1). Write the eq
lesya [120]

Answer:

<h3>            f(x) = - 3(x + 8)² + 2</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k   - the vertex form of the quadratic function with vertex    (h, k)

the<u> axis of symmetry</u> at<u> x = -8</u> means h = -8

the <u>maximum height of 2</u> means  k = 2

So:

f(x) = a(x - (-8))² + 2

f(x) = a(x + 8)² + 2   - the vertex form of the quadratic function with vertex   (-8, 2)

The parabola passing through the point (-7, -1) means that if x = -7 then        f(x) = -1

so:

    -1 = a(-7 + 8)² + 2

 -1 -2 = a(1)² + 2 -2

      -3 = a

Threfore:

The vertex form of the parabola which has an axis of symmetry at x = -8, a maximum height of 2, and passes through the point (-7, -1) is:

                                 <u>f(x) = -3(x + 8)² + 2</u>

8 0
3 years ago
What is the product ?<br> (4y-3)(2y^2+3y-5)
yuradex [85]

Answer:

8y^3 + 6y^2 - 29y + 15

Step-by-step explanation:

8y^3 + 12y^2 - 20y - 6y^2 - 9y + 15

then

8y^3 + 6y^2 - 29y + 15 is the product

Best regards

4 0
3 years ago
Read 2 more answers
The Martin family's truck gets an average of 25 miles per gallon. Predict how many miles they can drive using 7 gallons of gas.
victus00 [196]
I believe they can drive 3.57 miles.
8 0
2 years ago
Read 2 more answers
What are the solutions to the following system? StartLayout Enlarged left-brace 1st row negative 2 x squared + y = negative 5 2n
Yakvenalex [24]

Answer:

(\sqrt{2},-1),(-\sqrt{2},-1)

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

Step-by-step explanation:

we have

-2x^{2} +y=-5 ----> equation A

y=-3x^{2} +5 -----> equation B

solve by substitution

substitute equation B in equation A

-2x^{2} +(-3x^{2} +5)=-5

solve for x

-5x^{2} +5=-5

-5x^{2}=-10

x^{2}=2

x=\pm\sqrt{2}

<em>Find the value of y</em>

y=-3x^{2} +5

For x=\sqrt{2} ----> y=-3(\sqrt{2})^{2} +5=-1

For x=-\sqrt{2} ----> y=-3(-\sqrt{2})^{2} +5=-1

therefore

The solutions are

(\sqrt{2},-1),(-\sqrt{2},-1)

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

8 0
3 years ago
Read 2 more answers
If, P(x,y) is a point on the unit circle determined by real number δ, then tanδ = what
Lisa [10]
\bf sin(\theta)=\cfrac{opposite}{hypotenuse}&#10;=\cfrac{y}{r}&#10;=\cfrac{1}{csc(\theta)}&#10;\\ \quad \\\\&#10;% cosine&#10;cos(\theta)=\cfrac{adjacent}{hypotenuse}&#10;=\cfrac{x}{r}&#10;=\cfrac{1}{sec(\theta)}&#10;\\ \quad \\\\&#10;% tangent&#10;tan(\theta)=\cfrac{opposite}{adjacent}&#10;=\cfrac{y}{x}&#10;=\cfrac{sin(\theta)}{cos(\theta)}

\bf cot(\theta)=\cfrac{adjacent}{opposite}&#10;=\cfrac{x}{y}&#10;=\cfrac{cos(\theta)}{sin(\theta)}&#10;\\ \quad \\\\&#10;% cosecant&#10;csc(\theta)=\cfrac{hypotenuse}{opposite}&#10;=\cfrac{r}{y}&#10;=\cfrac{1}{sin(\theta)}&#10;\\ \quad \\\\&#10;% secant&#10;sec(\theta)=\cfrac{hypotenuse}{adjacent}&#10;=\cfrac{r}{x}&#10;=\cfrac{1}{cos(\theta)}\\\\&#10;-------------------------------\\\\&#10;P(x,y)\implies \delta\qquad tan(\delta)=\cfrac{y}{x}
5 0
3 years ago
Other questions:
  • HELPWW!
    14·1 answer
  • 3.5 +x=7 I need help please page 60
    15·2 answers
  • Order from least to greatest.
    10·1 answer
  • Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 76.676.6
    10·1 answer
  • Select all the expression that have value of 25 a.500divided by 6 b. 600 divided by 3 c.100divided by 4 d.150 divided by 5 e.200
    12·1 answer
  • Simplify the expression. <br> 100^(1/2)-125^(1/3)<br> PLEASE HELP OFFERING 24 POINTS
    13·1 answer
  • James saved money regularly this year. He saved a
    6·1 answer
  • Sara has two puppies, Sonny &amp; Cher. Every month she purchases enough food to feed her puppies for the month. Sonny eats 8.25
    11·1 answer
  • PLEASE ANSWER FAST ITS DUE RN
    7·1 answer
  • Find (fog)(x).<br> f(x) = 2x + 6<br> g(x) = −3x - 10<br> Please help me
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!