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3 years ago

I need some help with the part circled in red, please. John is riding a bike along a straight path.

Mathematics

1 answer:

jonny [76]3 years ago

3 0

Answer:

100/3 meters per min

Step-by-step explanation:

Im kinda unsure about this one.

It took 3 minutes for John to travel 200m and Sam to travel 300m.

You have time and distance so you can use that to find velocity.

John: 200/3 m/min

Sam: 300/3 m/min

take the difference between the two to get your answer.

|200/3 - 300/3| = 100/3 m/min

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F(x)=-5x^2+2x-1. Find: f(-a)

lyudmila [28]

Answer:

$f(x) = 5 {x}^{2} + 2x - 1 \\ f( - a) = 5 {( - a)}^{2} + 2 \times - a - 1 \\ = 5 {a}^{2} - 2a - 1 \\ thank \: you$

4 0

3 years ago

Read 2 more answers

The perimeter of a rectangle is 68 inches. Its width is 16 inches. What is its length? A 16 inches B 18 inches C 20 inches D 22

Phantasy [73]

Answer: 18

Step-by-step explanation:

8 0

3 years ago

To help vegetables stay fresh longer, Liam’s family maintains storage near their home. The total volume of the root cellar is 95

Helga [31]

To help vegetables stay fresh longer, Volume of storage of 951 cubic feet is equal to 26.929 $m^3$

<u>Solution:</u>

Given that to help vegetables stay fresh longer, Liam’s family maintains storage.

Total volume of root cellar that is storage is 951 cubic feet.

Also given that 1 foot = 0.3048 meters

need to find the volume of storage in cubic meter that is $m^3$

$\begin{array}{l}{\text { As } 1 \text { foot }=0.3048 \mathrm{m}} \\\\ {\Rightarrow 1 \text { foot } \times 1 \text { foot }=0.3048 \mathrm{m} \times 0.3048 \mathrm{m}} \\\\ {\Rightarrow 1 \text { foot } \times 1 \text { foot } \times 1 \text { foot }=0.3048 \mathrm{m} \times 0.3048 \mathrm{m} \times 0.3048 \mathrm{m}} \\\\ {=1 \mathrm{foot}^{3}=0.0283 \mathrm{m}^{3}} \\\\ {\Rightarrow 1 \text { cubic feet }=0.0283 \mathrm{m}^{3}}\end{array}$

$\text { So } 951 \text { cubic feet }=951 \times 0.0283 \mathrm{m}^{3}=26.929 \mathrm{m}^{3}$

Hence volume of storage of 951 cubic feet is equal to 26.929 $m^3$

7 0

3 years ago

F(x) = x2 + 2x-5<br> g(x) = -3/2 - 4x + 1<br> What is f(x) – g(x)?

NeX [460]

Step-by-step explanation:

Start by finding (fog)(x)

To find this function, substitute x=

x−1

That is g(x) into f(x)

⇒(f∘g)(x)=(

x−1

)

−2(

x−1

)+5

(x−1)

−

x−1

Now substitute x=3

⇒(f∘g)(3)=

(3−1)

−

3−1

−

+5=4−4+5=5.

Hope it helps:)

6 0

3 years ago

I need to find the value of x with the given information

Vika [28.1K]

Answer:

BD is half of the answer BF is

Step-by-step explanation:

BD is only half of BF so find the answer for BF and then divide by @ and you have your answer.

6 0

3 years ago