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3 years ago

7

Evaluate each algebraic expression for given value of the variable

1 answer:

crimeas [40]3 years ago

8 0

I don't even know how to answer this I'm just extremely bored don't hate me for this but I'm just gonna go ahead and talk about me and my problem with my crush so a couple months ago I got a crush for the second time in my entire life and I'm going to marry him but he doesn't know it yet(；一_一)anyways so my friends kept pushing me into him and we r in 7th grade and he is in 8th like come on we r not in 2nd grade so I can tell he was getting annoyed and one time he even sed watch it in the quietest sweetest voice ever(ಥ﹏ಥ)so I was like Ok guys stop and they still try to push me but I don't let then but anyways I could also tell he got annoyed when I look at him so I stopped and now he the one looking and me and he started to walk rly close to me to and wherever I go I always see him I'm so happy. (ಥ﹏ಥ)so ya and then I finally gathered up the courage to follow him on instagram and my friends are telling me to dm him but idk if I want to... mabey I should just let him come to me idk but ya that's what's happening baiiiiii.(´・ω・`)

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Which of the following is the graph of the function shown above?

gayaneshka [121]

Answer:

2x + 4, x ≤ -2

Step-by-step explanation:

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3 years ago

What is the volume of a cone that has a diameter of 18 centimeters and a height of 12 centimeters?

sveta [45]

Answer:

1018.28

Given -

Diameter of cone = 18 cm

To get the radius divide it by 2 -

Radius, r = 18/2 = 9

height, h = 12 cm

To find -

Volume of cone.

Solution -

Volume = 1/3 hπr²

→ V = 1/3 18 × 22/7 × 9 × 9

→ V = 7128/7

→ V = 1018.28

Therefore, the volume of the cone is 1018.28.

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3 years ago

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Which is a logical conclusion based on the given information?

aliina [53]

Answer:

Step-by-step explanation:

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3 years ago

What is the perimeter of a parallelogram, if its area is 24 cm^2 and and the distances between the point of intersection of the

Stells [14]

Answer is 20 cm i guess

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3 years ago

If RX=4 and XS=9, then XT=<br> And how do you get it?

konstantin123 [22]

Answer:

XT=6 units

Step-by-step explanation:

The picture of the question is the attached figure

step 1

In the right triangle RST

Applying the Pythagorean theorem

$RS^2=RT^2+TS^2$

we have

$RS=RX+XS=4+9=13\ units$ ---> by segment addition postulate

substitute

$RT^2+TS^2=169$ ----> equation A

step 2

In the right triangle RTX

Applying the Pythagorean theorem

$RT^2=RX^2+XT^2$

we have

$RX=4\ units$

substitute

$RT^2=4^2+XT^2$

$RT^2=16+XT^2$

$XT^2=RT^2-16$ ----> equation B

step 3

In the right triangle XTS

Applying the Pythagorean theorem

$TS^2=XS^2+XT^2$

we have

$XS=9\ units$

substitute

$TS^2=9^2+XT^2$

$TS^2=81+XT^2$

$XT^2=TS^2-81$ ----> equation C

step 4

equate equation B and equation C

$TS^2-81=RT^2-16$

$TS^2-RT^2=81-16$

$TS^2-RT^2=65$ ----> equation D

step 5

Solve the system

$RT^2+TS^2=169$ ----> equation A

$TS^2-RT^2=65$ ----> equation D

Solve by elimination

Adds equation A and equation D

$RT^2+TS^2=169\\TS^2-RT^2=65\\---------\\TS^2+TS^2=169+65\\2TS^2=234\\TS^2=117$

Find the value of RT^2

$RT^2+117=169\\RT^2=52$

step 6

Find the value of XT

equation C

$XT^2=117-81\\XT^2=36\\XT=6\ units$

7 0

3 years ago