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3 years ago

Write this polynomial in standard form- (5a+2)(a+4)

Mathematics

2 answers:

ikadub [295]3 years ago

7 0

Answer:

5a²+22a+8

Step-by-step explanation:

(5a+2)(a+4)

5a² + 20a + 2a + 8

5a² + 22a + 8

kirill115 [55]3 years ago

6 0

Answer:

if minus is part of the question:

-(5a^2+22a+8)=-5a^2-22a-8

if not then:5a^2+22a+8____ a tip: make the question clear next time...good luck!

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6v+13b=377<br> 4v+9b=259

aleksandr82 [10.1K]

Answer:

v = 13

b = 23

Step-by-step explanation:

To solve this system of equations, we can negate one equation and add it to other to cancel out one variable.

Looking at v and b, the coefficients are 6, 4 and 13, 9, respectively.

It would be easier to use the LCM of 6 and 4

$E_1 : 6v + 13b = 377\\E_2: 4v + 9b = 259\\\\4E_1 + (- 6)E_2:\\24v + 52b = 1508\\-24v - 54b=-1554\\\\0v -2b = -46\\-2b = -46\\b = 23\\\\4v + 9(23) = 259\\4v + 207 = 259\\4v = 52\\v = 13\\\\6(13) + 13(23)\\78 + 299\\377$

6 0

3 years ago

The temperature in Mansfield, Ohio was -3 degrees in the afternoon. After the sun went down, the temperature dropped 6 degrees.

Harman [31]

-9
Because if you have negative three and it drops 6 then it becomes negative 9

8 0

3 years ago

Using 13 US coins what are all the ways to make 1.10

Natali5045456 [20]

Here's one way--- 1 half dollar, 2 quarters, 10 pennies

3 0

3 years ago

Read 2 more answers

Harvey can run 3 1/6 km in 1/4 hour. Harvey runs at a constant rate

lyudmila [28]

Answer:

12 2/3 km/hour or 12.666 km/hour

Step-by-step explanation:

Because 3 1/6 is the rate for every quarter hour, simply multiply that rate by 4 in order to get the average speed over the course of an hour.

6 0

3 years ago

I need help asap pls help me

Alchen [17]

Answer:

36 ft

Step-by-step explanation:

The first step is to find the length of the hypotenuse of the newly formed right triangle. Using the Pythagorean theorem:

$x=\sqrt{10^2+24^2}=\sqrt{100+576}=\sqrt{676}=26$

Adding this to the 10 foot tall part of the tree that remains standing, you get an initial height of 26+10=36 feet. Hope this helps!

4 0

3 years ago