All categories

3 years ago

Witch expression is the factorization of x2+10x+21

Mathematics

1 answer:

Alenkasestr [34]3 years ago

6 0

Answer:

x^2 +x(7+3) +21

x^2 +7x + 3x +21

x(x+7) +3(x+7)

(x+7) (x+3)

You might be interested in

A set of 3 consecutive integers has a sum of 27. which integers are they

Scilla [17]

They are 8, 9 and 10.

5 0

3 years ago

After a storm, 135 trees out of 180 were left standing. What is the percentage loss of the number of trees?

beks73 [17]

Answer:

Percentage loss of the number of trees is $25\%$ .

Step-by-step explanation:

Given: After a storm, $135$ trees out of $180$ were left standing.

To find: What is the percentage loss of the number of trees?

Solution:

We have,

Total number of trees $=180$

Number of trees left standing $=135$

Therefore, loss of trees $=180-135=45$

We now that $\text {Loss\%}=\frac{\text{Number of trees left}}{\text{Total number of trees}}\times 100 \%$

$\implies \text {Loss\%}=\frac{45}{180}\times 100 \%$

$\implies \text {Loss\%}=\frac{450}{18} \%$

$\implies \text {Loss\%}=25 \%$

Hence, the percentage loss of the number of trees is $25\%$ .

6 0

3 years ago

What does ASA stand for? how is it used?

Westkost [7]

Answer:ASA stands for (angle-side-angle)

Step-by-step explanation: According to the ASA rule, two triangles are said to be congruent if any two angles and the side included between the angles of one triangle are equal to the corresponding two angles and side included between the angles of the second triangle.

4 0

1 year ago

Read 2 more answers

Please help and explain if you can

Keith_Richards [23]

Answer:

I think the answer is 100, but correct me if im wrong

7 0

3 years ago

Read 2 more answers

What is the equation of the line that passes through (0,-2) and (4,6)

balandron [24]