4 years ago

1. Factorize the following quadratic expressions

Mathematics

1 answer:

lilavasa [31]4 years ago

7 0

$i)~a^2+3a+2=(a+1)(a+2)\\\\
ii)~u^2-12u-13=(u+1)(u-13)$

You might be interested in

Find the value of x.

slavikrds [6]

Answer:

$x=11$

Step-by-step explanation:

we know that

The Midpoint Theorem states that the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side.

In this problem

$(x+5)=\frac{1}{2}(3x-1)$

solve for x

Multiply by 2 both sides

$2x+10=3x-1$

subtract 2x both sides

$10=3x-1-2x$

$10=x-1$

Adds 1 both sides

$x=11$

3 0

3 years ago

1721 to 1 significant figure 1975 to 2 significant figure 76.71 to 1 decimal point

Evgesh-ka [11]

If you need it rounded, it would be 2 then 20 then 76.1. If you just need the base numbers, it would be 1 then 19 then 76.7

7 0

2 years ago

Read 2 more answers

N a recent flu epidemic, the number of flu cases increased by 40% each week. There were 3,000 flu cases during the first week of

Anarel [89]

Answer:

2,880 people

Step-by-step explanation:

Week 1: 3,000 cases

Week 2: 0.4 * 3,000 = 1,200. 1,200 + 3,000 = 4,200

Week 3: 0.4 * 4,200 = 1,680. 1,680 + 4,200 = 5,880

5,880 - 3,000 = 2,880

8 0

3 years ago

Read 2 more answers

One of the radioactive isotopes used in chemical and medical research is iodine-125, which has a half-life of 61 days. how long

Oksana_A [137]

Answer:122 days

Step-by-step explanation:

5 0

2 years ago

-2x+2y=6 y=3 ft me after ill paypal u 252 622 0255

Katen [24]

Answer:

-2x +6 = 6

-2x = 6- 6

-2x =0

x = 0

7 0

3 years ago

Read 2 more answers