What are the x-intercepts of y = 2x² + 15x + 7?

Answer:

0.84$ and 42.82$

Step-by-step explanation:

2% is equivalent to 2/100

So, 42$ x [tex]\frac{2}{100}[/tex] = 84/100 = 0.84$ (the 2% interest)

And the total the aunt has to pay equals to = 42$ + 0.84$ =42.84$

ATQ

[tex]\\ \sf\longrightarrow x+3x+x-7=73[/tex]

[tex]\\ \sf\longrightarrow 5x-7=73[/tex]

[tex]\\ \sf\longrightarrow 5x=80[/tex]

[tex]\\ \sf\longrightarrow x=16[/tex]

Answer:

3.54x10^1

Step-by-step explanation:

Answer:

149

Step-by-step explanation:

wow

Check the picture below.

Answer:

y= 2.1

Step-by-step explanation:

I use a Graphing Calculator called Desmos. I suggest you try it.

Answer:

the range for this function would be  (−∞,−3],{y|y≤−3}

Answer:

0.8

Step-by-step explanation:

first i did 4% of 20 and got 0.8

Answer .60

Step-by-step explanation:

Answer:

the estimated quotient is 60

Step-by-step explanation: please mark me brainlest

Answer:

What is 150 percent of 48? = 72

Step-by-step explanation:

= 150 percent *48

= ( 150/100)*48

= ( 150*48)/100

= 7200/100

= 72

Answer:

Mrs. Donaldson earned 907.20 dollars.

Step-by-step explanation:

907.20

Answer:

C

Step-by-step explanation:

C bc it goes through the 0... none of the others do.

Answer:

Domain: (-infinite sign, infinity sign)

Range: (-infinite sign, infinity sign)

OR you can write it as {x|x ∊ R}

the R is real numbers

Answer:

The answer is 9

Step-by-step explanation:

You each exponent to get 81/9. You simplify and it gives you 9.

Answer:

The answer is 9

Step-by-step explanation:

if u multiply by the exponents

3^4=81

3^2=9

then divide 81÷9=9

Step-by-step explanation:

I assume the changes to the dimensions were made by using the same factor for each dimension, right ?

so, what do we need to do or calculate ? what is the desired result ?

the surface areas ? the new dimensions ? the volume ?

or only the factor of how much the dimensions changed, when the surface area was changed to 1/4 ?

????

I assume the last one, because there is so little information about what to do.

the surface area is calculated based on the areas of the various rectangles in the surface of the object.

each rectangle area is the result of multiplying 2 dimensions.

as the whole surface area shrinks by the factor 1/4, it means that every rectangle on the surface also shrinks by the factor 1/4.

and this factor 1/4 is the result of multiplying 2 dimensions. each dimension was changed by multiplying it with the same factor as every other dimension.

so, factor×factor = 1/4

factor² = 1/4

factor = sqrt(1/4) = 1/2

so, yes, in order to shrink the surface area to 1/4 of the original size, all the dimensions need to be cut in half (multiplied by 1/2).

Answer:

a, d and e

Step-by-step explanation:

should be right hmu if wrong

Answer:

Kendra paid $32.60 for gas.

Step-by-step explanation:

If the price of one gallon of gas is $3.26, then we should multiply that price by 10 gallons:

[tex]10(3.26)=32.6[/tex]

In context, that is a total of $32.60.

Answer: $32.60

Step-by-step explanation:

Price per gallon: $3.26

amount of gas: 10 gallons

3.26 dollars times 10 gallons = $32.60 total

Answer:

a,d,e

Step-by-step explanation:

The equivalent equation is x² + 20x = -102

The equivalent equation can be obtained by factorizing or simplifying the given quadratic equation as shown below;

x² + 20x + 81 = -21

collect similar terms together

x² + 20x + 81 + 21 = 0

x² + 20x + 102 = 0

The equation can also be written as x² + 20x = -102

Thus, the equivalent equation is x² + 20x = -102

Learn more about simplification of quadratic equation here: https://brainly.com/question/1214333

Answer:

isoceles

Step-by-step explanation:

because isosceles triangle have 2 sides with equal measurement and a same angle can be formed 1 or 3 times not 2 times.

Answer:

4

Step-by-step explanation:

960/240 equals 4

Answer:

Can I get equation for this too?

Step-by-step explanation:

Answer:

The answer is C.

Step-by-step explanation:

Because rational numbers are part of the irrationals.

There are two major subsets of Real numbers which are rational numbers and irrational numbers

The correct option for the Venn diagram that correctly represents the relationship between rational numbers and irrational numbers is option A because;

A. Rational numbers and irrational numbers have no numbers in common

The reason the above selection is correct is as follows:

Rational numbers are denoted by the capital letter Q, and they can be represented by the ratio of two integers, a, and b, as follows;

[tex]Q = \mathbf{\dfrac{a}{b}}[/tex]

Where;

a, and b, are whole number integers

Rational numbers are one of the two major subsets of real numbers, R

Example of rational numbers are [tex]\dfrac{1}{2}[/tex], 0.85, and [tex]\dfrac{4}{1}[/tex] = 4

Therefore, integers are rational numbers

Irrational numbers: Irrational numbers are real numbers that are not rational numbers, and they are represented by the capital letter, I, they cannot be represented as the ratio of two integers a, and b

Example of irrational numbers are π, √2, and √3

Rational numbers and irrational numbers are different subsets of Real numbers and they have no element in common, therefore, the correct option is option A

Learn more about rational numbers here:

https://brainly.com/question/12606259

Answer:

answer c part

Step-by-step explanation:

please make me brainlist

Answer: None you have 9 tacos or 0.7 you could say

Step-by-step explanation:

Step-by-step explanation:

We have that the vertices of triangle ABC are:

A(4, 2)

B(7, 9)

C(7, 2)

First, we are reflecting over the y axis, which makes (x,y) map onto (-x, y). This gives us:

A'(-4, 2)

B'(-7, 9)

C'(-7, 2)

Then, we translate 5 units down, meaning we subtract 5 from each of the y coordinates. This gives us a final answer of:

D(-4, -3)

E(-7, 4)

F(-7, -3)