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Rainbow [258]
3 years ago
13

Which statement about k(x)=-x2-2x+15 is true?

Mathematics
2 answers:
Serjik [45]3 years ago
8 0

Answer:

A

Step-by-step explanation:

kumpel [21]3 years ago
5 0

Answer:

The zeros are -3 and 5, because k(x)= -(x + 3)(x - 5).

Step-by-step explanation:

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It takes Lara 1/3 hour to walk to the library 3/4 mile away. What is her walking pace?
Dmitry [639]
2 1/4 miles per hour.
3 0
4 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
Natalija [7]

Hello there!

11⁶/11²=11/⁴ because when we divide numbers with the same base, we subtract the powers.

11⁴*11⁵=11⁹ because we add the powers when multiplying numbers with the same base.

I hope this helps you!

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SilentNature

4 0
3 years ago
Read 2 more answers
Voce 2x-u - 1x2-3x+3 = 2​
kumpel [21]

Answer:

u=−x2−x+1

Step-by-step explanation:

Let's solve for u.

2x−u−1x^2−3x+3=2

Step 1: Add x^2 to both sides.

−x2−u−x+3+x2=2+x2

−u−x+3=x2+2

Step 2: Add x to both sides.

−u−x+3+x=x2+2+x

−u+3=x2+x+2

Step 3: Add -3 to both sides.

−u+3+−3=x2+x+2+−3

−u=x2+x−1

Step 4: Divide both sides by -1.

−u/−1=x2+x−1

−1/u=−x2−x+1

Answer:

u=−x2−x+1

5 0
3 years ago
Solve the inequality for x. <br> - 2 x - 10 ≥ 4
Inga [223]

Answer:

x ≤ -7

Step-by-step explanation

<em>the steps to solve this are:</em>

1. Add 10 to both sides to get the x value and constant isolated on both sides.

-2x ≥ 14

2. Divide both sides by -2 to get the x value

x ≥ -7

3. Flip the inequality sign since you divided by a negative x-value.

x ≤ -7

Hope i could help! :)

6 0
3 years ago
Will someone help me with all of these, I have the answers but I’m trying check them.This is a practice assignment btw.
Ipatiy [6.2K]

We will look at the process of solving literal equations for a particular variable ( x ).

A literal equation is usually categorized by a myraid of constants that are crucial to the process which is being modeled. We solve such equation in terms of a controlling variable ( that we can choose to alter our process ).

For the following literal equations ( x ) will be the subject of variability.

3\cdot(bx\text{ - 2ab ) = }b\cdot(x-7a)\text{ + 3ab}

Whenever we have algebraic expressions we always refer to the rule of ( PEMDAS ).

Step 1: Solve the Parenthesis

We will solve for all the parenthesis in the equation given and write down the result:

3bx\text{ - 6ab = bx - 7ab + 3ab }

Step 2: Highlight and combine the like terms

All like terms are classified on the basis of their constants ( a and b ) and variable ( x ) attached. We will highlight all the like terms and take simplify them on either side of the " = " sign:

\begin{gathered} 3bx\text{ }\text{\textcolor{#FF7968}{- 6ab}}\text{ = bx }\text{\textcolor{#FF7968}{-7ab}}\text{ }\text{\textcolor{#FF7968}{+ 3ab}} \\ 3bx\text{ - bx = 2ab} \end{gathered}

We combined three like terms ( -6ab , -7ab , and 3ab ).

Step 3: Factorize and simplify the equation

Now we will look for any constant that is present in all the terms throughout the equation. We see that constant ( b ) is common in all the terms. Hence, we will factor ( b ) out and cancel it out from each side of the " = " sign as follows:

\begin{gathered} b\cdot(3x\text{ - x ) = b}\cdot(2a) \\ \textcolor{#FF7968}{2x}\text{\textcolor{#FF7968}{ = 2a}} \end{gathered}

Step 4: Solve for the variable ( x )

We are left with a simple expression that relates the constant ( a ) and variable ( x ). We can go ahead and solve for the above:

\begin{gathered} x\text{ = }\frac{2a}{2} \\ \textcolor{#FF7968}{x}\text{\textcolor{#FF7968}{ = a}} \end{gathered}

5 0
1 year ago
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