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3 years ago

What is the value of x? Enter your answer in the box.

Mathematics

2 answers:

zubka84 [21]3 years ago

4 0

the value of x is 12

sergiy2304 [10]3 years ago

4 0

You have to set the expressions equal to each other since they're vertical angles, so its 4x+7=5(x-4) then you get 4x+7=5x-20 you then subtract 4x to get 7=x-20 then after add 20 on both sides to get 27=x.

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Zachary purchased a computer for $1,200 on a payment plan. Four months after he purchased the computer, his balance was $780. Fi

DedPeter [7]

Answer:

y = 105x

Step-by-step explanation:

He loses $105 per month

8 0

2 years ago

Use the drop-down menus to complete the statements about the function p(x) = x(x – 1) + 1. The value of a is . The value of b is

Ludmilka [50]

Answer: The value of a is 1. The value of b is -1. The value of c is 1. The value of the discriminant is -3. The quadratic function will not intersects the x-axis.

Explanation:

The standard form of a quadratic equation is,

$p(x)=ax^2+bx+c$

The given function is,

$p(x)=x(x-1)+1$

It can be written as,

$p(x)=x^2-x+1$

By comparing this equation with the standard form of quadratic equation. we get,

$a=1$

$b=-1$

$c=1$

The formula for discriminant is,

$D=b^2-4ac$

$D=(-1)^2-4(1)(1)$

$D=1-4$

$D=-3$

The value of the discriminant is -3.

If D<0, it means the function have no real roots.

If D=0, it means function have one real roots.

If D>0, it means function have two real roots.

Since D<0 it means the function have no real roots. So the function will not intersect the x-axis at any point.

8 0

3 years ago

Read 2 more answers

What is the median of 1.6 , 2.3 , 1.4 , 2.5 , 1.7

lisov135 [29]

First, reorder the numbers from least to greatest

1.4, 1.6, 1.7, 2.5, 2.5

The median is the middle number

1.7 is your answer

hope this helps

6 0

3 years ago

31<9 and --3X = 4X = 15X = 12X = 11x = 18

JulsSmile [24]

Given:

$\frac{3x}{4}$

Find: values belong to the solution

Explanation:

$\begin{gathered} \frac{3x}{4}$

and

$\begin{gathered} -\frac{x}{6}\ge-3 \\ -x\ge-18 \\ x\leq18 \end{gathered}$

so those values are solution which is x<12

i.e; x=4 and x=11

5 0

1 year ago

Al and Bill each have two bullets. They fire alternately at a glass bottle. Al has hitting probability 1/3 and Bill 1/4. What is

enot [183]

P(Al hits bottle first time) = 1/3
P(Al misses the first shot but hits on his second shot) =
P( Al misses and bill misses and Al hits) = 2/3 * 3/4 * 1/3 = 1/6

So required probability = 1/3 + 1/6 = 1/2

8 0

3 years ago