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3 years ago

Can somebody help me What is 4(x-1)=6

1 answer:

7 0

4(x-1)=6 you start by dividing the whole equation by 4, so
x-1=6/4 simplify, x-1=3/2 then you add 1 to the whole equation
x=1 and 3/2 or x=5/2

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Stella divides 12/8 on her calculator and gets 1.5. Assuming that Stella has not adjusted the calculator's settings, what do the

Romashka [77]

Stella divided 12/8.

If we divide 12 by 8, we get exactly 1.5.

Let us check given options one by one .

A) Stella made an error : Stella didn't made an error because it's just division of two numbers.

B) The answer is exactly 1.5. : On dividing 12 by 8, we get exactly 1.5, so this option is correct.

C) The calculator rounded the answer. : On dividing 12 by 8, we get exactly 1.5. So, no rounding is required.

D) The calculator truncated the answer. : On dividing 12 by 8, we get exactly 1.5. So, no truncation in the answer.

Therefore, correct option is B) The answer is exactly 1.5.

6 0

3 years ago

If f(x)=2+8, what is f(-1.8)? A. 4 B. 6 C. 10 D. 12

kobusy [5.1K]

F(x)=2x+8
F(-1.8)=2(-1.8)+8
f(-1.8)=-3.6+8
f(-1.8)=4.4

3 0

3 years ago

Read 2 more answers

Find the area of a kite with diagonals 15 m and 7 m.

lozanna [386]

Answer:

Step-by-step explanation:

The formula of an area of a kite:

$A=\dfrac{e\cdot f}{2}$

e, f - diagonals

We have e = 15m, f = 7m.

Substitute:

$A=\dfraC{(15)(7)}{2}=\dfrac{105}{2}=52.5\ m^2$

3 0

3 years ago

Express p as the subject of the formula q= p² - r ÷ t

Rudik [331]

Answer:

p = $\sqrt{q +\frac{r}{t} }$

Step-by-step explanation:

q= $p^{2}$ - r÷ t using BODMAS

q = $p^{2}$ - (r/t)

q + r/t = $p^{2}$

p= $\sqrt{q+\frac{r}{t} }$

7 0

2 years ago

Nathaniel measured the height of one shelf on his bookcase. He wants to know which books will fit on the shelf. The shelf is 22.

UkoKoshka [18]

PART A - So the ruler is 22.86 centimeters tall, and after measuring with an inch ruler, is also 9 inches tall.
ruler = 22.86cm
ruler = 9 in
You can equate 22.86cm and 9in because they both equal the length of the ruler (transitive property).
22.86cm = 9in
Then you can write a proportionality equation.
$\frac{22.86cm}{9in} = \frac{x}{1in} \\$

Part B -
Cross multiplying,
$(9in)x = (22.86cm)1 \\ 
x = \frac{22.86cm}{9in}= 2.54cm/in$

Part C - We can use something called dimensional analysis - multiplying 12 cm by (1in/2.54cm) - in order to change the units from inches to cm. This is possible because 1in = 2.54cm, the fraction 1in/2.54cm = 1. And also the units cm will cancel out.
$\frac{12cm}{1} * \frac{1in}{2.54cm} = 4.72in$

6 0

3 years ago