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patriot [66]
3 years ago
15

Simplify the expression below: (-5x² + 2) - (4x² – 5x - 9)

Mathematics
1 answer:
lozanna [386]3 years ago
3 0

Answer:

-9x² + 5x + 11

Step-by-step explanation:

-5x² + (-4x²) + 5x + 2 + 9

-9x² + 5x + 11

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Three numbers are in the ratio 1:3:5 and their sum is 270. find the largest number.
Sphinxa [80]

Answer:

<u>150</u>

Step-by-step explanation:

Let :

⇒ The numbers can be denoted as <u>x</u>, <u>3x</u>, and <u>5x</u>

<u />

=============================================================

Solving :

⇒ It mentions their sum is 270

⇒ x + 3x + 5x = 270

⇒ 9x = 270

⇒ x = 30

=============================================================

Largest number :

⇒ 5x

⇒ 5(30)

⇒ <u>150</u>

8 0
2 years ago
Read 2 more answers
Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10. What is the number?
Bezzdna [24]

Answer:

The product of 10 and a number is = 10x Twice that number means 2x 36 less than twice that number= 2x-36. It is given that....The product of 10 and a number is the same as 36 less twice that same number

Step-by-step explanation:

5 0
3 years ago
Multiply 16.852 × 0.86
Leni [432]

Answer:

14.49272 or 14.5 (when rounded)

Step-by-step explanation:

5 0
3 years ago
What is 33<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D" id="TexFormula1" title="\frac{1}{3}" alt="\frac{1}{3}" align=
aleksklad [387]

Answer:

33.3 Repeating

Step-by-step explanation:

1. You already know that 33 is the whole number so you have 33.

2. 1/3 is converted to .3333333 so you put 33 before the decimal point

3. You get 33.3333333

Hope this helps :)

8 0
3 years ago
According to the graph, a student who studies 10 hours per week should earn a score of about how much?
vladimir1956 [14]
A student who studies 10 hours per week should earn a score of 95
4 0
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