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alexdok [17]
3 years ago
10

A certain number added to its square is 30. Find the number

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0
X+x²=30
x²+x-30=0
(x+6)(x-5)=0
x=-6 or x=5
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A cookie recipe calls for 1/3 of a cup of sugar and 1 1/2 cups of flour. What is the unit rate of flour to sugar for the cookie
Serggg [28]

Answer:

Rate = 4.5

Step-by-step explanation:

It is given that,

A cookie recipe calls for 1/3 of a cup of sugar and 1 1/2 cups of flour.

We need to find the unit rate of flour to sugar for the cookie recipe. It can be calculated as follows :

U=\dfrac{\text{No of cups of flour}}{\text{No of cups of sugar}}\\\\=\dfrac{1\dfrac{1}{2}}{\dfrac{1}{3}}\\\\=\dfrac{\dfrac{3}{2}}{\dfrac{1}{3}}\\\\=\dfrac{3}{2}\times 3\\\\=4.5

So, the unit rate of flour to sugar for the cookie recipe is 4.5

6 0
3 years ago
I’ve been stuck on this for 3 days today is the last day please help me guys
OleMash [197]

y = x^2 - 2x - 3

Factored Form: y = (x - 3)(x + 1)

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Axis of Symmetry: x = 1

Vertex: (1, -4)

Domain: All Real Numbers (or negative infinity to infinity)

Range: y > -4

Hope this helps!

7 0
2 years ago
4. What do your measurements in #3 tell you about the lengths of PR and QS ? Explain your thinking and then
alekssr [168]

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4 0
2 years ago
Rewrite in mathematical language. Every negative integer J is less than or equal to its inverse.
Luda [366]

Answer:

-J \leq J

Step-by-step explanation:

Given

Negative integer J

Required

Represent as an inequality of its inverse

The question didn't state if it's additive inverse or multiplicative inverse;

<em>Since the question has to do with negation, I'll assume it's an additive inverse</em>

<em></em>

The inverse of -J is +J

To represent as an inequality (less than or equal), we have:

-J \leq +J

Solving further, it gives

-J \leq J

3 0
3 years ago
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AleksAgata [21]
The standard deviation of the set of values (2, 3, 6, 9, 10) is <span>square root of 12.5 (</span>\sqrt{12.5}) therefore OPTION C

6 0
3 years ago
Read 2 more answers
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