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2 years ago

13

Pls help no links pls

1 answer:

nikitadnepr [17]2 years ago

8 0

Answer: This may help thanks for looking for

Step-by-step explanation:

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Solve by completing the square. Round<br> x^2-4x=5

Novosadov [1.4K]

Answer: -1 and 5.

Step-by-step explanation:

x - 4x = 5 : Move the constant to the left.

x^2 - 4x - 5 = 0 : Rewrite the expression.

x^2 + x - 5x - 5 = 0 : Factor the expressions.

x(x+1) - 5(x+1) = 0 : Factor the expression.

(x+1)(x-5) = 0 : Seperate into possible cases.

x + 1 = 0, x - 5 = 0 : Solve the equations.

x = -1, x = 5 : The equation has 2 solutions.

8 0

2 years ago

Use synthetic division to evaluate f(x) = –2x^3+ 3x – 6 when x = -5.

fgiga [73]

Answer:

-131

Step-by-step explanation:

Use -5 in place of x

f(x) = –2x^3+ 3x – 6

f(x) = -2*-5^3+3*5-6

6 0

2 years ago

Noreen made 8 and 2/3 cups of snack mix for a party. Her uest ate 3/4 of the mix. How much snack mix did her guest eat?

vova2212 [387]

1)8÷2*3=12(cups)
2)12÷3*4=16(mix)

4 0

3 years ago

The price of a certain new car increases by the same amount each year. The first year it was $23,000 in in the 10th year it was

Katyanochek1 [597]

3450 is theeee answer!!!!!!!!!!!

7 0

3 years ago

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A metal bar weighs 7 Kg. 93% of the bar is Silver. How many Kgs of silver is there in the bar?

Sindrei [870]

<h3>Solution:</h3>

<u>From the given data</u>

<u>93% of the bar is silver :</u>

$\small\bold{ → 93\% \: \: of \: \: 7kg}$

$\small \bold{→\frac{93}{100} \times 7 }$

$\small \bold{→ \frac{651}{100} }$

$\small \bold{→ 6.51 \: kg }$

<u>Therefore, 6.51 Kg of Silver is there in the bar.</u>

8 0

2 years ago

Read 2 more answers