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Arlecino [84]
3 years ago
13

Factorise x^2 + 7x -30

Mathematics
2 answers:
kumpel [21]3 years ago
7 0
The answer is 
(x+10)(x-3)
maks197457 [2]3 years ago
3 0
x^{2} + 7x - 30 \\ \\ (x - 3)(x + 10) \\ \\ Answer: \fbox {(x - 3)(x + 10)}
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What quadrant would the ordered pair -4,-6 fall in​
quester [9]

Answer:

y = x (2) + 10 x + 24

Step-by-step explanation:

quadrent 3

8 0
2 years ago
Find 4+ (-1 2/3). Write your answer in simplest form.
kramer

Answer:

The answer is -5 1/3

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
While training for a marathon, Jeff wants to increase the number of miles he runs each day. On the first day of training, Jeff r
user100 [1]

Answer:

The series is 5 , 6 , 7 , 8 , 9 , 10 , 11

Step-by-step explanation:

* Lets revise the arithmetic series

- In the arithmetic series there is a constant difference between

 each two consecutive numbers

- Ex:

# 2  ,  5  ,  8  ,  11  ,  ……………………….  (constant difference is 3)

# 5  ,  10  ,  15  ,  20  ,  …………………………  (constant difference is 5)

# 12  ,  10  ,  8  ,  6  ,  ……………………………  (constant difference is -2)

* General term (nth term) of an Arithmetic series:

- If the first term is a and the common diffidence is d, then

 U1 = a  ,  U2  = a + d  ,  U3  = a + 2d  ,  U4 = a + 3d  ,  U5 = a + 4d

- So the nth term is Un = a + (n – 1)d, where n is the position of the

 number in the series

* Lets solve the problem

- Jeff wants to increase the number of miles he runs each day

∴ He will add the initial value by constant number each day

- He plans on increasing the number of miles he runs a day by 1

∴ The constant value is 1 mile

-  On the first day of training, Jeff runs 5 miles

∴ The first value is 5 miles

∴ The series is arithmetic

∵ a = 5 , d = 1

- He do that for the remainder of the week

∵ The week has 7 days

∴ The series has 7 terms

∵ The rule of the series is Un = a + (n - 1)d

∵ a = 5 and d = 1

∴ Un = 5 + (n - 1)(1)

∴ Un = 5 + n - 1

∴ Un = 4 + n ⇒ n is the position of the number

- Substitute n from 1 to 7 to find the series

∴ The series is 5 , 6 , 7 , 8 , 9 , 10 , 11

6 0
3 years ago
Please help me on this
taurus [48]

Answer:

gshwhsye

Step-by-step explanation:

gshshhshshshjsjsjsj

8 0
2 years ago
4/r=5/7solve for r. Help pls
antiseptic1488 [7]
Hello!

You first cross multiply

4 * 7 = 28

5 * r = 5 * r

r * 5 = 28

Divide both sides by 5

r = 28/5 = 5.6

The answer is 28/5 or 5.6

Hope this helps!
4 0
2 years ago
Read 2 more answers
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