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ankoles [38]
2 years ago
10

Hello people ~factorise↷ x^2 + 4x –21​

Mathematics
1 answer:
EleoNora [17]2 years ago
8 0

Let's see

\\ \rm\rightarrowtail x^2+4x-21

\\ \rm\rightarrowtail x^2+7x-3x-21

\\ \rm\rightarrowtail x(x+7)-3(x+7)

\\ \rm\rightarrowtail (x-3)(x+7)

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A migrating bird flies 700 miles in 1414 hours. How many miles does it fly in 33 ​hours
Lisa [10]
In  1414 hours it covered 700 miles

In  1 hour it would have covered  (700/1414) mile

In 33 hours it will then cover :          700/1414  * 33 = 16.34

So in 33 hours it will cover ≈ 16.34 miles.
5 0
2 years ago
Shalinda wants to leave an 18% tip for her
ki77a [65]

Hello There! Shalinda's total is $29.62.

Our first step is to find 18% of $25.10. To do this, multiply 25.10 by 0.18.

25.10 x 0.18 = 4.518 (Which can be rounded up to 4.52)

So, this gives us the tip, but the question is asking what her total is, including the tip. To find her total, add the price before tip and the tip together.

25.10 + 4.52 = 29.62

So, her total with the tip is $29.62! I hope this was helpful, have a great day!

8 0
2 years ago
Help how do yall find this easy i cannot-
IgorC [24]

Answer:

153/50 or 3.06

Step-by-step explanation:

Just convert them into improper fractions and put parenthesis around the numbers with a division symbol in the middle of the two numbers.

Ex. (3/2)*(4/3)

7 0
2 years ago
**URGENT PLEASE HELP ME TONIGHT >.<
Katena32 [7]
The rate of change for the graph would be the last option, 35. If you follow rise over run, you end up with a rise of 35 and a run of 1, or 35/1 which simplifies to 35.
5 0
3 years ago
Gary and Joey share a 16-ounce box of cereal. By the end of the week, Gary has eaten 3/8 of the box, and Joey has eaten 1/4 of t
V125BC [204]

Answer:

3/8 of the box is left so 6 ounces is left.

Step-by-step explanation:

Make the 1/4, 2/8 then add 2/8 by 3/8 to get 5/8 then subtract 8/8 by 5/8 to get 3/8 then multiply it by 2 to get 6/16.

So the answer is 6/16 or 6.

6 0
3 years ago
Read 2 more answers
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