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3 years ago

Brainliest for whoever if they get this CORRECT.

Mathematics

1 answer:

Sergio039 [100]3 years ago

8 0

All the information you need is in the quadratic trinomial ... Read from right to left:

Find factors of 49 which ADD (+) to give 14.

These will be 7 and 7 because: 7 × 7 = 49 and 7 + 7 = 14

The + sign shows that the signs in the brackets will be the SAME, the minus (-) shows that they will be negative:

( x − 7 ) ( x − 7 ) = ( x − 7 ) 2

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in a car race feild(round track that is 500m diameter an observer was starting point and the race started a red car finished 5 l

Eddi Din [679]

Answer:

Distance between the observer and the red car is $250 Sin \frac{\pi}{3}t$

Step-by-step explanation:

Diameter of field = 500 m

Radius of field = $\frac{Diameter}{2}=\frac{500}{2}=250 m$

Let R be the radius and the speed at which the car completes race be w

So, $w=\frac{2\pi}{T}$

Car finished 5 laps in minutes = 30

Car finished 1 lap in minutes = $\frac{30}{5}=6$

So, $w=\frac{2\pi}{6}=\frac{\pi}{3}$

Refer the attached figure

Angle between car and observer = wt

So, Distance between the observer and the red car is give as A sin wt

So, Distance between the observer and the red car= $250 Sin \frac{\pi}{3}t$

5 0

3 years ago

Julie has 15 nails. She uses 8 to build a birdhouse. She subtracts to find the number of nails left. Which addition sentence can

Helen [10]

Answer:

8+7=15

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Write an equivalent expression to 9y -1/2(4y+20)

Leya [2.2K]

An equivalent expression could just be one that is simplified. So we get 9y - 2y - 10 if we distribute the 1/2, which is 7y - 10.
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Hope this helps!
==jding713==

6 0

3 years ago

Read 2 more answers

PLS HELP<br> PLSSSSSSSSSSS

dolphi86 [110]

Answer:

y=-15

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7 0

3 years ago

Three runners in a relay race share the 8-mile distance equally. How many miles does each runner travel?

Serggg [28]

Answer: 2 2/3 miles

Step-by-step explanation:

From the question, we are informed that three runners in a relay race share the 8-mile distance equally.

The number of miles that each runner travel will be the total miles divided by number of runners. This will be:

= 8/3

= 2 2/3 miles

4 0

2 years ago