2 years ago

The product of , and the sum of a number and - 4 is less than or equal to 64.

Mathematics

1 answer:

lozanna [386]2 years ago

3 0

Answer:

Step-by-step explanation:

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The base of the triangle decreases by 30% and the height increases by 20%.

sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

Use formula for the area of the triangle

$A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}$

<u>Initial triangle:</u>

The base is 18 cm

The height is 5 cm

The area is

$A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2$

<u>New triangle:</u>

The base is $(1-0.3)\cdot 18=0.7\cdot 18=12.6\ cm$

The height is $(1+0.2)\cdot 5=1.2\cdot 5=6\ cm$

The area is

$A_{new}=\dfrac{1}{2}\cdot 12.6\cdot 6=37.8\ cm^2$

Area decreases by

$100\%-\dfrac{37.8}{45}\cdot 100\%=100\%-84\%=16\%$

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2 years ago

The radius of a sphere is 13 cm. What is the surface area of the sphere? Round to the nearest tenth

AlekseyPX

Answer:

2123.72 cm²

Step-by-step explanation:

Hope it helps

3 0

2 years ago

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

andrezito [222]

Answer:

1 Spanish 90%

2.French 37%

3. Chinese 18%

Step-by-step explanation:

9/10 .......... 90/100 ........... 90%

37%.................. 37%

9/50............. 18/100 .......... 18%

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2 years ago

How can I use multiplication to find the quotient and evaluate the expression

adell [148]

When you divide two fractions, you do Keep, Change, Flip or KCF. So you keep the 3/5, you change the division sign to a multiplication sign, then flip the 3/15 to 15/3. So the new equation is 3/5x15/3. Then you simply the two sides so it becomes 1/1x3/1.....

Meaning the answer is 3.

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3 years ago

Write a description of an array of stickers using the product 3x15

Greeley [361]

There would be three rows, going to the right. Each row, would be 15 high.

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2 years ago