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Elza [17]
3 years ago
13

Explain how to multiply two numbers with different signs.

Mathematics
1 answer:
Vika [28.1K]3 years ago
5 0
<h2>Answer:</h2><h2>When you multiply 2 Integers with the same signs,the result is always positive.</h2><h2>Just multiply the absolute values and make the answer positive.</h2><h2>When you multiply 2 integers with different integers the result is always negative. </h2><h2>Just multiply the absolute values and make the answer negative. </h2>

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The price of a car was increased from $3,600 to $4,500. What was the percent of the increase?
Nataly [62]

Answer:

25%

Step-by-step explanation:

.25(3,600)=900

3,600+900=4,500

6 0
3 years ago
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For number 6, evaluate the definite integral.
maks197457 [2]
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\bf \displaystyle \int\limits_{0}^{28}\ \cfrac{1}{\sqrt[3]{u^2}}\cdot \cfrac{du}{2}\implies \cfrac{1}{2}\int\limits_{0}^{28}\ u^{-\frac{2}{3}}\cdot du\impliedby &#10;\begin{array}{llll}&#10;\textit{now let's change the bounds}\\&#10;\textit{by using } u(x)&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;u(0)=8+2(0)\implies u(0)=8&#10;\\\\\\&#10;u(28)=8+2(28)\implies u(28)=64

\bf \\\\&#10;-------------------------------\\\\&#10;\displaystyle  \cfrac{1}{2}\int\limits_{8}^{64}\ u^{-\frac{2}{3}}\cdot du\implies \cfrac{1}{2}\cdot \cfrac{u^{\frac{1}{3}}}{\frac{1}{3}}\implies \left. \cfrac{3\sqrt[3]{u}}{2} \right]_8^{64}&#10;\\\\\\&#10;\left[ \cfrac{3\sqrt[3]{(2^2)^3}}{2} \right]-\left[ \cfrac{3\sqrt[3]{2^3}}{2}  \right]\implies \cfrac{12}{2}-\cfrac{6}{2}\implies 6-3\implies 3
3 0
3 years ago
Solution of the equation<br> 3x/5+1=4x/15+7
Anika [276]

Answer:

x = 18

Step-by-step explanation:

Given

\frac{3x}{5} + 1 = \frac{4x}{15} + 7 ( subtract 1 from both sides )

\frac{3x}{5} = \frac{4x}{15} + 6

Multiply through by 15 to clear the fractions

9x = 4x + 90 ( subtract 4x from both sides )

5x = 90 ( divide both sides by 5 )

x = 18

4 0
3 years ago
11) Determine if the following numbers are<br> prime, composite or neither.<br> 13
harina [27]

Answer:

13 is Prime

Step-by-step explanation:

6 0
3 years ago
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Tim wants to buy several pairs of jeans. He compares the prices at a store in his neighborhood and at an online store. He finds
iogann1982 [59]

Answer:

2 orders

Step-by-step explanation:

Step one:

given data

The local store sells at $24 per pair of jeans

Cost = $24

The online store sells at $22 per pair plus a shipping fee of $6 per order

let the number of orders be x

Cost= 22+6x

For 1 order

the online store will cost

Cost= 22+6*1

Cost= 22+6

Cost= $28

For 2 orders

The local shop cost

Cost= 24*2= $48

The online store will cost

Cost= 22+6*2

the online store will cost

Cost= 22+12

Cost= $34

Hence Tim should place at least 2 orders if he wants to buy online

7 0
2 years ago
Read 2 more answers
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