All categories

3 years ago

What does the expression look like when we substitute the given values for x, y, and z into the expression?

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

The expression will look like 9-(3+2) and will evaluate to 4

Step-by-step explanation:

We have to put the values of x, y and z in the given expression to find the result.

Given:

$x-(y+z)$

And

$x=9\\y=3\\z=2$

Putting the values

$9-(3+2)\\=9-5\\=4$

The expression will look like 9-(3+2) and will evaluate to 4

Keywords: Expressions, Evaluation

Learn more about evaluation at:

#learnwithBrainly

You might be interested in

What is the area of the kite?

Alona [7]

Answer:

im not fully sure because im a 4th grader but 52 i think.

7 0

2 years ago

What is the length of BC , rounded to the nearest tenth?

Arte-miy333 [17]

Step $1$

In the right triangle ADB

Find the length of the segment AB

Applying the Pythagorean Theorem

$AB^{2} =AD^{2}+BD^{2}$

we have

$AD=5\ units\\BD=12\ units$

substitute the values

$AB^{2}=5^{2}+12^{2}$

$AB^{2}=169$

$AB=13\ units$

Step $2$

In the right triangle ADB

Find the cosine of the angle BAD

we know that

$cos(BAD)=\frac{adjacent\ side }{hypotenuse}=\frac{AD}{AB}=\frac{5}{13}$

Step $3$

In the right triangle ABC

Find the length of the segment AC

we know that

$cos(BAC)=cos (BAD)=\frac{5}{13}$

$cos(BAC)=\frac{adjacent\ side }{hypotenuse}=\frac{AB}{AC}$

$\frac{5}{13}=\frac{AB}{AC}$

$\frac{5}{13}=\frac{13}{AC}$

solve for AC

$AC=(13*13)/5=33.8\ units$

Step $4$

Find the length of the segment DC

we know that

$DC=AC-AD$

we have

$AC=33.8\ units$

$AD=5\ units$

substitute the values

$DC=33.8\ units-5\ units$

$DC=28.8\ units$

Step $5$

Find the length of the segment BC

In the right triangle BDC

Applying the Pythagorean Theorem

$BC^{2} =BD^{2}+DC^{2}$

we have

$BD=12\ units\\DC=28.8\ units$

substitute the values

$BC^{2}=12^{2}+28.8^{2}$

$BC^{2}=973.44$

$BC=31.2\ units$

therefore

the answer is

$BC=31.2\ units$

8 0

3 years ago

Read 2 more answers

Kim walked diagonally across a rectangluar field that measured 100 ft by 240ft how far did she walk?

elena-s [515]

Draw a triangle and you can see that you can use the Pythagorean Theorem.
C = root (100^2 + 240^2)
C = 260ft

8 0

3 years ago

Please I really need help my grade depends on it

DochEvi [55]

Answer:

Step-by-step explanation:

Given the solution

2 < x ≤ 24

The ≤ symbol means less than or equal to

Thus x can equal 24

At the other end 2 < x which means x cannot equal 2

Thus x = 24 will make the inequality true

5 0

3 years ago

Read 2 more answers

Find the missing angles and sides

maria [59]

Step-by-step explanation:

m∠1 = 180-100 = 80

m∠2 = 180-150 = 30

m∠3 = 180-(80+30) = 180 - 110 = 70

using the law of sine :

AC/sin(m∠2) = 5/sin(m∠3) ⇒ AC = sin(m∠2)*(5/sin(m∠3)) = sin(30)×(5÷sin(70))

=2.66044443119

CB/sin(m∠1) = 5/sin(m∠3) ⇒ CB = sin(m∠1)*(5/sin(m∠3)) ⇒ CB = sin(80)×(5÷sin(70)) = 5.240052604588

8 0

2 years ago