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erastovalidia [21]
3 years ago
11

Solve x2 + 4x + 8 = 0.

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0
X^2 + 4x + 8 = 0
( x + 2 ) ( x + 2 ) = 0

i am a mathematics teacher. if anything to ask please pm me
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Graph quadrilateral ABCD and find the most precise name (square, rectangle,
Pavlova-9 [17]

Answer:

Kite

Step-by-step explanation:

To graph quadrilateral with points:

A(-1,-2)

B(5,1)

C(-3,1)

D(-1,4)

Thus, we graph the the given points and join the corners. The quadrilateral formed has the following features:

Measure of segment AB= Measure of segment BD = 6.708 units

Measure of segment AC= Measure of segment CD = 3.605 units

Thus, adjacent pair of sides of the quadrilateral are congruent.

Major diagonal BC cuts the minor diagonal AD at point E such that:

Measure of segment AE= Measure of segment ED = 3 units

m∠AEB = m∠DEB = 90°

Thus, major diagonal is a perpendicular bisector of the minor diagonal.

The above stated features fulfills the criterion of a kite.

Hence, the given quadrilateral ABCD is a kite.

8 0
3 years ago
Gamal spent $12.50 at the book store. The difference between the amount he spent at the video game store and the amount he spent
Andrej [43]
The equivalent equation is d=17+12.5
it simplifies to d=29.5
4 0
4 years ago
Read 2 more answers
Find the area of <br> A triangle with a base of 8 units and a height of 13 units
daser333 [38]

Answer:

52 units squared

Step-by-step explanation:

13 \:  units\: \times 8 \: units \div 2

7 0
3 years ago
How do you write 4.092 in expanded notation?
DanielleElmas [232]
4+ 0.0 + 0.09+ 0.002. This should be the expanded notation form.
6 0
3 years ago
State whether the triangles are similar. If so, write a similarity statement and the postulate or theorem you used.
never [62]

Answer:

Triangles ABC and MNO are similar by SSS

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional

In this problem

If this problem the corresponding sides are

AB and MN

BC and NO

AC and MO

Verify if the corresponding sides are proportional

\frac{AB}{MN}=\frac{BC}{NO}=\frac{AC}{MO}

substitute the given values

\frac{5}{7.5}=\frac{5}{7.5}=\frac{8}{12}

0.67=0.67=0.67 ----- is true

so

When two triangles have corresponding sides with identical ratios , the triangles are similar by SSS Similarity

therefore

Triangles ABC and MNO are similar by SSS

8 0
3 years ago
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