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3 years ago

What is the value of this expression? (-2)^5

Mathematics

2 answers:

s344n2d4d5 [400]3 years ago

8 0

(-2)⁵................ => (-2)(-2)(-2)(-2)(-2)...........=> -32.

recall, minus times minus is plus, and minus times plus is minus.

shtirl [24]3 years ago

3 0

Expression step by step:

${ - 2}^{5} =$
$( - 2 )\times ( - 2 )\times ( - 2) \times (- 2 )\times ( - 2) =$
-32

Hope it helped,

BioTeacher101

(If you have any questions feel free to ask them in the comments)

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What’s the solution to this equation 2+x=7/8x-15

Nostrana [21]

Answer:x=−136

Step-by-step explanation: Step 1: Simplify both sides of the equation.

2+x=

x−15

2+x=

x+−15

x+2=

x−15

Step 2: Subtract 7/8x from both sides.

x+2−

x−15−

x+2=−15

Step 3: Subtract 2 from both sides.

x+2−2=−15−2

x=−17

Step 4: Multiply both sides by 8.

8*(

x)=(8)*(−17)

6 0

2 years ago

Read 2 more answers

Which linear inequality is represented by the graph?

Tamiku [17]

Answer:

Option (4)

Step-by-step explanation:

From the graph attached,

A dotted line passes through two points (3, 1) and (-3, -3)

Let the equation of the given line is,

y = mx + b

where 'm' = slope of the line

b = y-intercept

Slope of a line passing through $(x_1, y_1)$ and $(x_2,y_2)$ is,

m = $\frac{y_2-y_1}{x_2-x_1}$

For the given points,

m = $\frac{1+3}{3+3}$

m = $\frac{2}{3}$

y-intercept 'b' = -1

Therefore, equation of the given line will be,

$y=\frac{2}{3}x-1$

Since graphed line is a dotted line so it's representing an inequality(having < or > sign)

And the shaded part is below the dotted line,

Inequality will be,

y < $\frac{2}{3}x-1$

Therefore, Option (4) will be the answer.

7 0

3 years ago

Caroline wants to buy a pair of shoes that has an original price of $40.00. She has a coupon for a 30% discount off of the origi

fredd [130]

Answer:
$26.32

step-by-step explanation:
it originally was $40.00
she has a coupon for 30%
30% of 40.00 is 12
40 • 0.30 = 12
40 - 12
$28
it is now $28 after the coupon
her state charges an 6% sales tax on the discounted price
6% of 28 is 1.68
28 • 0.06 = 1.68
28 - 1.68 = 26.32

6 0

2 years ago

Theres 30 kilograms of 10% apple juice. How many kilograms of apples does it need to increase the current apple juice to 25%?

raketka [301]

The mass of the apple juice needed to increase the initial concentration to 25% is 45 kg

The given parameters;

Mass of the apple juice, m = 30 kg
current percentage, = 10%
final percent after increment = 25%

Let the mass added to increase the percentage to 30% = x

10% ----------------- 30 kg

25% ------------------ ?

$= \frac{25 \times 30}{10} \\\\= 75 \ kg$

The additional mass is calculated as;

$x+ 30 = 75\\\\x = 75 - 30\\\\x = 45 \ kg$

Thus, the mass of the apple juice needed to increase the initial concentration to 25% is 45 kg.

Learn more about percentage and ratio here: brainly.com/question/11752721

6 0

2 years ago

2.48030477 rounded to the nearest hundred-thousandth is

ValentinkaMS [17]

2.48030, its rounded tenths 2.5 hundreths 2.48 thousands 2.480 ten-thousands 2.4803 then hundred-thousandth 2.48030

3 0

3 years ago