All categories

3 years ago

Can someone help me on 12,13,14 :)

Mathematics

1 answer:

Stels [109]3 years ago

4 0

Answer:

m∠XYZ = 166

AB = 2√5

Modpoint (1 , 5)

Step-by-step explanation:

Look at the photo below for the details.

You might be interested in

Select the two values of x that are roots of this equation. 2x+11x+15= 0

Amiraneli [1.4K]

Answer:

The roots of the equation are x=-3 and x=-2.5

Step-by-step explanation:

The correct quadratic equation is

2x^2+11x+15=0

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$2x^{2} +11x+15=0$

$a=2\\b=11\\c=15$

substitute in the formula

$x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}$

$x=\frac{-11(+/-)\sqrt{121-120}} {4}$

$x=\frac{-11(+/-)\sqrt{1}} {4}$

$x=\frac{-11(+/-)1} {4}$

$x_1=\frac{-11(+)1}{4}=-2.5$

$x_2=\frac{-11(-)1}{4}=-3$

therefore

The roots of the equation are x=-3 and x=-2.5

5 0

2 years ago

• The total rise of a set of stairs is 81.125". If there are 11 risers, what is the height of

patriot [66]

Answer:

7.375".

Step-by-step explanation:

That would be 81.125 / 11

= 7.375 ".

3 0

2 years ago

Which statement best describes the function h(t) = 210 – 15t?

jonny [76]

Answer:

The answer is b.

h is the function name; t is the input and h(t) is the output.

The function name is the one outside the parentheses, the input is inside and the output is the whole function.

Step-by-step explanation:

8 0

3 years ago

For a line with the equation y=2/3x−4, the slope is:

statuscvo [17]

Answer:

The answer is B. 2/3 because y=mx+b mx us always the slope and b is the y intercept

5 0

3 years ago

A coordinate plane graph is shown. Point C is at negative 4 comma 3. Point D is at 1 comma 0. A segment connects the two points.

lina2011 [118]

The distance between them is 5.83 units. Enjoy!

5 0

3 years ago

Read 2 more answers