2 years ago

Find the value of the expression

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

3 0

3m^2+2p^2-15

3(3)^2+2(10)^2-15
3(9)+2(100)-15
21+200-15
206

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Claudia is reading a book that has 360 pages. she read some of the book last week. she plans to read 46 pages. when she does, sh

gladu [14]

She read 242 pages. I got that by finding what (4/5) x (360) was which is 288 and then subtracted 46 to see what was left over which is 242

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2 years ago

Use the quadratic formula to solve 2x^2=5x+6. Leave your answer in radical form. Show all of your work!

Westkost [7]

Answer:

In radical from 169/50 , 177/200

Step-by-step explanation:

Given:

$2x^2=5x+6\\\\2x^2-5x-6=0\\\\Where, a=2 , b=-5 , c=-6$

Find:

Value of $x$

Computation:

Using quadratic formula:

$\frac{-b\±\sqrt{b^2-4ac} }{2a}\\\\By\ putting\ all\ value\\\\ \frac{-(-5)\±\sqrt{(-5)^2-4(2)(-6)} }{2(2)}\\\\ \frac{5\±\sqrt{25+48} }{4}\\\\ \frac{5\±8.54 }{4}\\\\\frac{5+8.54 }{4},\frac{5-8.54 }{4} \\\\3.38 , 0.885$

Value of $x$ 3.38 , 0.885

In radical from 169/50 , 177/200

8 0

3 years ago

What is the surface area of this right rectangular prism?

horrorfan [7]

Surface=2(5 x 4)+2(4 x 7)+2(5 x 7)=2(20)+2(28)+2(35)=40+56+70=166

Answer: 166 cm²

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3 years ago

Read 2 more answers

-8+4-7+9-2+(-5)<br> What is the answer<br> -8+4-7+9-2+(-5)

lubasha [3.4K]

Answer:

-9

Step-by-step explanation:

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2 years ago

Round 0.00076511 to one significant figure

FrozenT [24]

Answer: 0.0008

Step-by-step explanation: Hope this helps :)

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2 years ago