1 year ago

This scale drawing shows in enlargement in a figure what is the value of X enter your answer as a decimal

Mathematics

1 answer:

stealth61 [152]1 year ago

8 0

Answer:

5.6

Step-by-step explanation:

First we need to figure out how to get from 10 to 14. If we multiply 10 by 1.4, we get 14. Multiply 4 by 1.4 as well to get 5.6 for x.

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A cell phone company charges a monthly fee plus $0.25 for each text message you send. The monthly fee is $30.00 . You owe $59.50

oksano4ka [1.4K]

118 text messages.

59.50-30=29.5
29.5 divided by 0.25=118.

I hope this is right! :) Sorry if it isn’t!

3 0

2 years ago

Read 2 more answers

What is the polar form of 7 StartRoot 3 EndRoot minus 7 i?

ololo11 [35]

Answer:

14(cos(330 degrees) + i sin(330 degrees))

option D

Step-by-step explanation:

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3 0

2 years ago

What is the completely factored form of d4 -8d2 + 16

irinina [24]

According to Vieta's Formulas, if $x_1,x_2$ are solutions of a given quadratic equation:

$ax^2+bx+c=0$

Then:

$a(x-x_1)(x-x_2)$ is the completely factored form of $ax^2+bx+c$ .

If choose $x=d^2$ , then:

$\displaystyle x^2-8x+16=0\\\\x_{1,2}= \frac{8\pm \sqrt{64-64} }{2}=4$

So, according to Vieta's formula, we can get:

$x^2-8x+16=(x-4)(x-4)= (x-4)^2$

But $x=d^2$ :

$d^4-8d^2+16=(d^2-4)^2=[(d+2)(d-2)]^2=(d+2)^2(d-2)^2$

8 0

2 years ago

Which of the following is the sum of both solutions of the equation <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2Bx-42%3D0"

AysviL [449]

Answer: $x=6$ or $x=-7$

Step-by-step explanation:

Step 1: Factor left side of equation: $(x-6)(x+7)=0$

Step 2: Set factors equal to 0: $x-6=0$ or $x+7=0$

Get your answer: $x=6$ or $x=-7$

5 0

2 years ago

Which of the sets of ordered pairs represents a function? (4 points) A = {(−4, 5), (1, −1), (2, −2), (2, 3)} B = {(2, 2), (3, −2

elena55 [62]

A function will not have any repeating x values....it can have repeating y values, just not the x ones

(-4,5),(-1,1),(2,-2),(2,3)
this is not a function because it has 2 sets of points that has x as 2...so it has repeating x values

(2,2),(3,-2),(9,3),(9,-3)
this is not a function because it has 2 sets of points that has an x value of 9...so it also has repeating x values

so both of these are not functions.....neither of them

6 0

3 years ago