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
RUDIKE [14]
3 years ago
12

F(x) = -3x2 – 20 Find f(-7) Evaluate the function Pls help

Mathematics
1 answer:
Mila [183]3 years ago
3 0
F(x)=-26
You substitute and evaluate
You might be interested in
What is the answer to ...8.42 x 9
3241004551 [841]

Answer:

75.78

Step-by-step explanation:

8.42*9=75.78

6 0
3 years ago
Read 2 more answers
Eric Drew an obtuse triangle. Which of the following could be true for Eric's triangle.
Vika [28.1K]

Answer:

<u>Option:B</u> is the correct answer.

B: possible angle measures of the triangle are 92, 48, and 40 .

Step-by-step explanation:

We know that an obtuse triangle is a triangle whose one angle is a obtuse angle ( i.e. the measure of the angle is greater than 90 degree and less than 180 degrees).

A)

A: all three angles have equal measures

Let the angle of a triangle be 'x'.

As we know that the sum of all the angles of a triangle is 180°.

This implies that:

x+x+x=180°

3x=180°

⇒ x=60°

Hence, the triangle will not be obtuse as none of the angle is obtuse.

Hence, option: A is incorrect.

B)

possible angle measures of the triangle are 92, 48, and 40.

This option is correct.

Since there is one angle which is obtuse ( measure 92 degree)

and also such a angle measure is possible in a triangle as sum of all the angles is 180°.

( since 92+48+40=180°)

C)

two of the angles are equal, and the third angle has a measure of 70.

Let the equal angles be represented by 'x'.

As the sum of all the angles is 180°.

⇒   x+x+70=180°

⇒ 2x=110°

⇒  x=55°

Hence, here also none of the angle is obtuse.

hence, option: C is incorrect.

D)

One angle has a measure of 90, while, the other two angles measure less than 90°.

Such a triangle will not be a obtuse triangle as none of the angle measure is greater than 90°.

Hence, option: D is incorrect.

4 0
3 years ago
Gabriella is x years old. Her sister, Felicia, is six years older than she is. Their mother is twice as old as Felicia. Their au
Yuri [45]
G = x
Felicia is Gabriella's age + 6
F = x + 6
Their mother is twice Felicia's age
M = 2(x + 6)  or  2x + 12
Tanya is the age of their mother plus Gabriella's age
A = 2x + 12 + x = 3x + 12
3x + 12
7 0
4 years ago
What is 12 times 164
skad [1K]

Answer:

1968

Step-by-step explanation:

give me brainliest plsssss tysm

8 0
3 years ago
Read 2 more answers
100 POINTS AND BRANLIST
12345 [234]

Answer:

can't see the image clearly

7 0
2 years ago
Other questions:
  • 80 pounds to 90 pounds, by what percentage did mr. mathewson increase the amount of weight he lifted?
    13·1 answer
  • Solve for t in d = rt , if d = 57 and r = 30 t = ?
    7·1 answer
  • Consider two congruent triangular prisms. Each rectangular face of prism A has a width of x + 2 and each rectangular face of pri
    6·2 answers
  • Prove the set of subsets of a finite set has cardinality 2^x
    14·1 answer
  • Go to my profile and go to the question where it says “what is the simplified expression.....” and please answer I need help!!
    11·2 answers
  • Select the correct answer.
    8·1 answer
  • 98 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
    15·2 answers
  • A company makes plastic beach balls with a radius of 2 inches. How many square inches of plastic does the company
    12·2 answers
  • Please help :) read the question and answer it please
    9·1 answer
  • You go to see family in another city. So far you have gone 120 miles. The total trip is 360 miles. What fraction of the total tr
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!