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aliya0001 [1]
3 years ago
7

PLZ I NEED HELP ILL GIVE YOU BRAINLIEST IF YOU HELP MEE

Mathematics
1 answer:
den301095 [7]3 years ago
6 0
In the box at the top, it would be 8.
The boxes that are side by side would be 85+40.
the box all the way at the bottom would be 125
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If a car has traveled 171 miles in 3 hours at a steady pace, how far has it traveled each hour?
san4es73 [151]

Answer:

B: 57 mph=57 mph

Step-by-step explanation:

A steady pace means constant speed  that it does not change over a period of time and direction of motion. A simple formula, for this case (constant speed)

v= \frac{x - xo}{t -to}

where x is distance and t time. The subtract is final value minus initial value

We have the distance and time, then

v= \frac{171 miles}{3 hours}  = 57 mph

7 0
3 years ago
-3x^{2}-21x-54 what are the zeros? (Solutions)
Irina-Kira [14]
The only way to solve if it is equal to something
assuming that the teacher wanted you to make it equal to zero do
0=-3x^2-21x-54

remember if we can do
xy=0 then assume x and y=0

so factor

0=-3x^2-21x-54
undistribute the -3
0=-3(x^2+7x+18)
remember 0 times anything=0 so
x^2+7x+18 must equal zero
use quadratice formula which is

if you have
ax^2+bx+c=0 then
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}

x^2+7x+18
a=1
b=7
c=18

x=\frac{-7+/- \sqrt{7^{2}-4(1)(18)} }{2(1)}
x=\frac{-7+/- \sqrt{49-72} }{2}
x=\frac{-7+/- \sqrt{-23} }{2}
i=√-1
x=\frac{-7+/- i\sqrt{23} }{2}



the zerose would be
x=\frac{-7+ i\sqrt{23} }{2} or \frac{-7- i\sqrt{23} }{2}




4 0
3 years ago
Can someone help me with the questions in the picture?
jolli1 [7]

Answer:

1. x= -4

2. x= 18

3. x= -15

4. x = 6

Step-by-step explanation:

Use relationship of angles to create equations and solve for x

6 0
3 years ago
Read 2 more answers
You want to buy a bouquet of yellow roses and baby’s breath for $16 the baby’s breath cost $3.50 per bunch, and the roses cost $
Stolb23 [73]

•.,¸¸,.•´¯     '     ¯´•.,¸¸,.•`

: 5 !!! !

3 0
3 years ago
Ed has 28 blocks. Sue has 34 blocks who has more blocks? How many more?
Anna007 [38]

Answer:

Sue // 6 More blocks

Step-by-step explanation:

Sue has more blocks because 34>28.

34-28 is 6 so sue has 6 more.

3 0
3 years ago
Read 2 more answers
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