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3 years ago

Please help me pleaseee

Mathematics

1 answer:

Bess [88]3 years ago

3 0

Answer:

Im gonna say its probably 5/7

Step-by-step explanation:

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What are all of the x-intercepts of the continuous function in the table? (0, 8) (–4, 0) (–4, 0), (4, 0) (–4, 0), (0, 8), (4, an

crimeas [40]

Answer:

The x-intercepts of the continuous function in the table are:

(-4,0) and (4,0).

Step-by-step explanation:

We are given a table of values of the continuous functions as:

(0, 8) (–4, 0) (–4, 0), (4, 0)

The x-intercept of a function is a point on the x-axis i.e. where y=0. (i.e. The x-intercept is where a line crosses the x-axis ).

Here y=f(x).

Hence from the given set of values we have:

f(x)=0 when x= -4 and x=4.

Since we are given the points as (-4,0) and (4,0).

Hence, the x-intercepts of the function f(x) is: (-4,0) and (4,0).

5 0

3 years ago

Which quadratic inequality does the graph below represent?

Alja [10]

Answer:

$y\leq 2x^2-8x+3$

Step-by-step explanation:

we know that

The quadratic function of the figure has a vertex at (2,-5) and the y-intercept is the point (0,3)

The equation of a vertical parabola in vertex form is equal to

$y=a(x-h)^2+k$

where

(h,k) is the vertex

a is a coefficient

we have

$(h,k)=(2,-5)$

substitute

$y=a(x-2)^2-5$

with the y-intercept find out the value of a

For x=0,y=3

$3=a(0-2)^2-5$

$3=4a-5$

$4a=8$

$a=2$

The equation is

$y=2(x-2)^2-5$

$y=2(x^2-4x+4)-5$

$y=2x^2-8x+8-5$

$y=2x^2-8x+3$

Looking at the graph, the solution is the shaded area below the quadratic equation

the value of y must be less than or equal to the quadratic function

$y\leq 2x^2-8x+3$

3 0

4 years ago

X^2+10x+22=13 1. Rewrite the equation by completing the square your equation should look like (x+c)^2 = d or (x-c)^2=d 2. What w

sukhopar [10]

Answer:

(x+5)² = 16

Solution: -1 and -9

Step-by-step explanation:

Given the quadratic equation X^2+10x+22=13

Subtract 22 from both sides

X^2+10x+22-22=13-22

x^2+10x = -9

Complete the square

Add the square of half of coefficient of x to both sides

coefficient of x = 10

half of coefficient of x = 10/2 = 5

square of half of coefficient of x= 5² = 25

Add 25 to both sides

x²+10x + 25 = -9+25

(x+5)² = 16

Hence the required equation is (x+5)² = 16

(x+5)² = 16

square root both sides

√(x+5)² = √16

x+5 = √16

x +5 = ±4

x = +4 - 5 and -4-5

x = -1 and -9

Hence the solution to the equation is -1 and -9

7 0

3 years ago

Find value of x with the steps please

vagabundo [1.1K]

Answer:

x=7°

Step-by-step explanation:

The figure is a triangle.

1. Triangles's angles add up to 180°.

2. We know that 1 angle measures 104°, so the remaining 2 angles add up to 76°. It is an isosceles triangle, so both of the remaining 2 angles have equal measures.

3. 76÷2=38°.

4. 9x-25°=38°

5. 63°-25°=38°

6. 9x=63°

7. x=7°

<em>Step by step explanation above. Hope it is correct! </em>

8 0

3 years ago

What is the absolute value of -12.5

Vladimir [108]

The absolute value of -12.5 is?

|-12.5| = 12.5

The absolute value of a negative number is the number that is exactly opposite on the number line, being a positive number. A positive number's absolute value is always the same thing, positive. Examples:-

|10| = 10
|-10| = 10
|-8.5| = 8.5
|8.5| = 8.5

|-12.5| = 12.5

8 0

3 years ago

Read 2 more answers