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4 years ago

Can someone please help me with this question

Mathematics

2 answers:

dexar [7]4 years ago

8 0

I think the answer is B

Aneli [31]4 years ago

3 0

Answer is B

Domain is x
Range is y

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1.) What’s the height of the base?<br><br> 2.) What’s the height of the prism or pyramid.

Yanka [14]

Answer:

Step-by-step explanation:

The height of the triangle is the height of the base

Height of the base = 16 m

Height of the prism = 20 m

4 0

3 years ago

Read 2 more answers

Consider the quadratic function f(x)=−x^2+x+30

yaroslaw [1]

Answer:

The smallest xx-intercept is $x = -5$

The largest xx-intercept is $x = 6$

The yy-intercept is $y = 30$ .

Step-by-step explanation:

Given a quadratic function in the following format:

$f(x) = ax^{2} + bx + c = 0, a \neq 0$

The x-values of the x-intercepts are $x_{1}, x_{2}$ , given by the following formulas.

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

We have that:

$f(x) = -x^{2} + x + 30$

This is not in the format above. I will multiply by (-1), so we have:

$f(x) = x^{2} - x - 30$

So, $a = 1, b = -1, c = -30$

$\bigtriangleup = b^{2} - 4ac = (-1)^{2} - 4*(1)*(-30) = 1 + 120 = 121$

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a} = \frac{-(-1) + \sqrt{121}}{2(1)} = \frac{12}{2} = 6$

$x_{2} = \frac{-b + \sqrt{\bigtriangleup}}{2*a} = \frac{-(-1) - \sqrt{121}}{2(1)} = \frac{-10}{2} = -5$

This means that

The smallest xx-intercept is $x = -5$

The largest xx-intercept is $x = 6$

The y-intercept is the value of f(x) when x = 0. So

$f(x)=−x^{2}+x+30$

$f(0) = 30$

The yy-intercept is $y = 30$ .

5 0

3 years ago

What is the product of 14560 times 10

Andrews [41]

The product of 14560 and 10 is 145600

3 0

4 years ago

Can someone please help (and show work plz)

Dominik [7]

Answer:

AX = 20

AY = 15

Step-by-step explanation:

The perimeter is ...

P = AC +CB +BA = (AX +XC) +CB +(BY +YA)

128 = AX +32 + 37 +24 +AY

35 = AX +AY

The ratios of corresponding sides are proportional:

AX/AY = XC/YB = 32/24 = 4/3

This tells us ...

AX = 4/3·AY

Substituting, we get ...

35 = (4/3)AY +AY = (7/3)AY

(3/7)·35 = 15 = AY

AX = 35 -AY = 20

The side measures are AX = 20, AY = 15.

6 0

3 years ago

Evaluate the function when x=5<br> F(5)=?

kenny6666 [7]

Step-by-step explanation:

When evaluating piecewise function, make sure the x value satisfies the function we use.

since 5>3, we use the second equations

That function is a constant function, this means at any x>3, exclusive, we will have a y value of -1.

$f(5) = - 1$

7 0

2 years ago