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3 years ago

Tran had $40 saved for a new bike. The next week, he had $68. At what rate of change did Tran’s savings grow?

Mathematics

1 answer:

Novay_Z [31]3 years ago

5 0

You have to subtract $40 from $68 make sure the larger number is in the front. If you did that all you would get $28.

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Solve quadratic inequality x^2+4x≥0

klemol [59]

Answer:

Step-by-step explanation:

y = x² + 4x is an up-opening parabola with x-intercepts 0 and -4.

y ≥ 0 when x≤-4 or x≥0

range: (-∞,-4)∪[0,+∞)

7 0

2 years ago

Select the correct answer.

Svetlanka [38]

Answer:

<h3> $\boxed{ \boxed{ \bold{ {x}^{2} + 4x - 21}}}$ </h3>

Step-by-step explanation:

$\sf{(x - 3)(x + 7)}$

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.

⇒ $\sf{x(x + 7) - 3(x + 7)}$

⇒ $\sf{ {x}^{2} + 7x - 3x - 21}$

Collect like terms

⇒ $\sf{ {x}^{2} + 4x - 21}$

Hope I helped!

Best regards!!

3 0

3 years ago

Read 2 more answers

The linear equation y = 1/4x tells us that this line is going to be more vertical or horizontal?

Afina-wow [57]

Horizontal, it’s below a 1/2 slope.

5 0

2 years ago

Will mark brainliest for whoever answers

RSB [31]

The answer is a I believe

I hope this helped :)

7 0

2 years ago

Sara is collecting signatures to pu on her towns ballot. So far, she has 432 signatures. This is 36% of the number of signatures

In-s [12.5K]

Sara needs to collect 1200 signatures.

Step-by-step explanation:

Let,

x be the total number of signatures she needs to collect

Given percentage = 36%

Signature collected = 432

According of statement;

36% of x = 432

$\frac{36}{100}*x=432\\$

$\frac{36x}{100}=432\\Multiplying\ both\ sides\ by 100\\100*\frac{36x}{100}=432*100\\36x=43200\\Dividing\ both\ sides\ by\ 36\\\frac{36x}{36}=\frac{43200}{36}\\x=1200$

Sara needs to collect 1200 signatures.

Keywords: Percentage, Division

Learn more about percentages at:

#LearnwithBrainly

6 0

2 years ago