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rodikova [14]
3 years ago
7

What does (3+2) 2-7=

Mathematics
1 answer:
Andrej [43]3 years ago
7 0

Answer:

18

Step-by-step explanation:

(3+2)²-7

add the number inside the parentheses

5²-7

the ² above the 5 is called square and that means multiply be him self so:

5*5=25

25-7=18

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Consider h(x)=x^2+8+15. identify its vertex and y-intercept.
OleMash [197]

Answer:

Vertex: (-4, -1)

Y-intercept: (0, 15)

Step-by-step explanation:

Given the quaratic function, h(x) = x² + 8x + 15:

In order to determine the vertex of the given function, we can use the formula, [x = \frac{-b}{2a}, h(\frac{-b}{2a})].

<h3>Use the equation:  [x = \frac{-b}{2a}, h(\frac{-b}{2a})]</h3>

In the quadratic function, h(x) = x² + 8x + 15, where:

a = 1, b = 8, and c = 15:

Substitute the given values for <em>a</em> and <em>b</em> into the equation to solve for the x-coordinate of the vertex.

x = \frac{-b}{2a}

x = \frac{-8}{2(1)}

x = -4

Subsitute the value of the x-coordinate into the given function to solve for the <u>y-coordinate of the vertex</u>:

h(x) = x² + 8x + 15

h(-4) = (-4)² + 8(-4) + 15

h(-4) = 16 - 32 + 15

h(-4) = -1

Therefore, the vertex of the given function is (-4, -1).

<h3>Solve for the Y-intercept:</h3>

The <u>y-intercept</u> is the point on the graph where it crosse the y-axis. In order to find the y-intercept of the function, set x = 0, and solve for the y-intercept:

h(x) = x² + 8x + 15

h(0) = (0)² + 8(0) + 15

h(0) = 0 + 0 + 15

h(0) = 15

Therefore, the y-intercept of the quadratic function is (0, 15).

5 0
2 years ago
Simplify the product by using FOIL <br><br> (6x-5)(2x-3)
Lapatulllka [165]

12x²-8x-15 should be your answer

3 0
3 years ago
What is the area of a circle with a radius of 35 inches?<br> in²<br> (Use 3.14 for Pi.)
Alex

Answer:

\boxed{ \tt{Area  \: \: of \: a \: circle = \pi \:  {r}^{2} }}

  • Plug the values and then solve :

\longrightarrow \tt \:  3.14   \times 35^{2}

\longrightarrow \tt \: 3846.5\: in ^{2}

  • Our final answer is 3846.5 in ^2

--------- HappY LearninG <3 --------

3 0
2 years ago
Read 2 more answers
Find the solution of the following simultaneous inequalities: x - 7 –1
Zinaida [17]

Answer:

x-8

Step-by-step explanation:

You add the -7 and -1 and then put the x in front of your answer.

7 0
3 years ago
Read 2 more answers
Tom is mailing packages. Each small package costs him $3.30 to send. Each large package costs him $4.30 . How much will it cost
Kazeer [188]
3.30 x 5 = 16.50
4.30 x 7 = 30.10
30.10 + 16.50 = $46.60
8 0
3 years ago
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