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melamori03 [73]
2 years ago
14

What is f(-3) for the function f(a)=-2a2-5a+4?​

Mathematics
1 answer:
Gwar [14]2 years ago
4 0

Answer:

ans is 1

Step-by-step explanation:

replace a with -3

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Complete the slope-intercept form of the linear equation that represents the relationship in the table.
nevsk [136]

According to the given table, the slope-intercept equation of the line is given by:

y = -2x + 1

The equation of a line, in <em>slope-intercept</em> form, is given by:

y = mx + b

In which:

  • The slope is m.
  • The intercept is b.

In this problem, we are given two points, (3,-5) and (-2,5).

  • The slope is given by <u>change in y divided by change in x</u>, hence:

m = \frac{5 - (-5)}{-2 - 3} = -2

Hence:

y = -2x + b

Point (3,-5) means that when x = 3, y = -5, which is used to find b.

y = -2x + b

-5 = -2(3) + b

b = 1

Hence, the equation of the line is:

y = -2x + 1

A similar problem is given at brainly.com/question/24685547

6 0
2 years ago
Find the volume of the cone. Round your answer to the nearest tenth.
oee [108]

Answer:

15205.3  

Step-by-step explanation: H=30  R²=484  3.14=π  →= rounded up to tenth  V = Volume

<em><u>formula (no numbers): H x R² x π ÷</u></em><u> </u>\frac{1}{3}<u> (or 3) </u><em><u>= V</u></em>

<u><em>how i got the answer :  30 x 484 x 3.14 ÷ 3 = 15205.31  → 15205.3</em></u>

4 0
2 years ago
Given: 8x-61=17, prove: 39/4
Degger [83]

Answer:

The solution is x = \frac{39}{4}

Step-by-step explanation:

We are given the following equation:

8x - 61 = 17

We want to find the solution, that is, the value of x. So

8x - 61 = 17

8x = 78

x = \frac{78}{8}

Simplifying by 2

x = \frac{39}{4}

The solution is x = \frac{39}{4}

8 0
2 years ago
One rectangle has a base of 12 inches and an altitude of 6inches, The other has a base of 10 inches and an altitude of 5 inches.
liubo4ka [24]

Sides of first rectangle are 12 inches and 6 inches

and sides of second rectangle are 10 inches and 5 inches

So to find the ration of sides we can do

Ratio of bases = 12/10 = 6/5

Ratio of altitudes = 6/5

Area of first rectangle = base * altitude = 12 *6 = 72 square inches

6 0
3 years ago
Tim has 80 coins in his piggy bank. Of these coins, 28 are nickels and the rest are quarters. What percent of the coins in the b
KIM [24]
65 percent I check it
8 0
2 years ago
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