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3 years ago

Expressions Task Card # 3

Mathematics

1 answer:

Mama L [17]3 years ago

6 0

Total $ = 2.50x+6
First multiply x by 2.50
Then add 6 to get the total amount spent.

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6(-2.3x- 5) + (4x + 11)

Oxana [17]

x = -1.93877551

Idk but I tried

7 0

4 years ago

For the function shown below, find f(3): f(x)=2x^4-8x^2+5x-7

a_sh-v [17]

We have been given the function

$f(x)=2x^4-8x^2+5x-7$

We have to find the value of f(3). In order to find the same, substitute x=3 in the given function.

$f(3)=2(3)^4-8(3)^2+5(3)-7$

Now, we simplify this step by step.

First of all $3^4=81\text{ and }3^2=9$ . Thus, we have

$f(3)=2\times 81 -8\times 9+5(3)-7$

Now, we can easily simplify it by PEMDAS

$f(3)=162-72+15-7$

$f(3)=98$

Therefore, the value of f(3) is 98.

3 0

3 years ago

Read 2 more answers

Lola says these two expressions have the same value.

zhuklara [117]

Answer:

expression A hope this helps

Step-by-step explanation:

mark me as brainiest

6 0

3 years ago

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Which statements are true about the number 17/5? Check that all apply

Verdich [7]

Hello!

Here are your answers:

-It is greater than 3

-It is between 3 and 4

This is based off of the options that were given.

3 0

3 years ago

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Can someone solve this it's really urgent please thank you

scZoUnD [109]

Answer:

461.875 cubic cm

Step-by-step explanation:

Volume of wood in the block

= volume of cuboid - 3 times the volume of one hemisphere

$=lbh - 3\times \frac{2}{3} \pi r^3\\= 20\times 7\times 4 - 2\times 3.14\times (2.5)^3\\= 560 - 6.28\times 15.625\\= 560 - 98.125\\= 461.875 \: cm^3$

8 0

3 years ago