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Marianna [84]
2 years ago
11

State the place value of:. (i) 8 in 287​

Mathematics
1 answer:
olchik [2.2K]2 years ago
3 0

Answer:

80

Step-by-step explanation:

because 8 is in tens place

so it´s value is 8*10=80

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Need help remembering how to solve f(x)=5x2
nata0808 [166]
F(x)=5*2
the f(x) stands for a normal X like any other algebraic equation. so all it is, is 5 times 2, which is 10.
so,
f(x)=5*2
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3 0
3 years ago
What is the square root of 18
kifflom [539]

Answer:

4.24

Step-by-step explanation:

looked it up on google

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3 0
3 years ago
Do this worksheets if someone do I will make him or her brainly if correct.
marusya05 [52]
Answer 17: -6/25-29%-3/10-1/3-34.5%-

Explanation: 6/25 is .24 as a decimal, 29 is .29, 3/10 is .30, 1/3 is .33, and 34.5 is .34

Answer 18: 78% is the same as 7.8/10 not 7/8. 7/8 as a percent is 87.5%
8 0
3 years ago
2(6 – x) – (9x + 2) = 4 + 8(x – 4)
Crank

Answer:

1.526

Step-by-step explanation:

12-2x-9x-2 = 4+8x-32

-11x+10 = 8x-28

-19x = -29

x = 1.526

4 0
3 years ago
Write the quadratic equation whose roots are -2 and 1, and whose leading coefficient is 4 .
Kaylis [27]

Answer: the equation is

4x^2 + 4x - 12

Step-by-step explanation:

A quadratic equation is an equation in which the highest power of the unknown is 2.

The general form of a quadratic equation is expressed as

ax^2 + bx + c

Where

a is the leading coefficient

c is a constant

Assuming we want to write the quadratic equation in x, from the information given, the roots which are given are -2 and 1 and the leading coefficient is 4.

Therefore, the linear factors of the quadratic equation will be (x+2) and (x-1)

the equation becomes

(x+2)(x-1)

= x^2 - x +2x - 3

= x^2 + x - 3

Given a leading coefficient of 4, we will multiply the quadratic expression by 4. It becomes

4(x^2 + x - 3)

= 4x^2 + 4x - 12

7 0
3 years ago
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