All categories

3 years ago

8x1 = 8

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

8 0

The correct answer is B

NeTakaya3 years ago

8 0

The answer to this problem is B

You might be interested in

4,400 X 400 = ( blank hundreds) X ( blank hundreds) = 176 hundreds, thousands, hundrenths, tenths, tens, ones, thousands, or tho

kiruha [24]

Hello There!

(44 hundreds) x (4 hundreds) = 176 tens thousands.

Hope This Helps You!
Good Luck :)

- Hannah ❤

5 0

3 years ago

Y=-7x+3<br> y=-x-3<br><br> Find the solution to the system of equations

Phoenix [80]

Just set the equations equal to each other
(1,-4)

8 0

3 years ago

19. For the following exercises, use the descriptions of each pair of lines given below to find the slopes of Line 1 and Line 2.

worty [1.4K]

Answer:

The given lines are un-related.

Step-by-step explanation:

In the question, two lines are given as line 1 passes through (-8,-55) and (10,89). Whereas, line 2 passes through (9,-44) and (4,-14).

It is required to find the slope of given lines and figure out whether they are perpendicular, parallel or neither.

To solve this question, first find the slope of both lines. Check if their product is equal to -1, then they are perpendicular. If the slopes are equal the lines are parallel.

Step 1 of 2

Find the slope of first line.

$\begin{aligned}&m_{1}=\frac{89-(-55)}{10-(-8)} \\&m_{1}=\frac{144}{18} \\&m_{1}=8\end{aligned}$

Step 2 of 2

Find the slope of first line.

$\begin{aligned}&m_{2}=\frac{-14-(-44)}{4-9} \\&m_{2}=\frac{30}{-5} \\&m_{2}=-6\end{aligned}$

Since, both slopes are neither equal nor reciprocal of each other.

Therefore, the lines are un-related.

4 0

1 year ago

Helpppppppppppppppppppppp

castortr0y [4]

Answer: second option y = 2(x + 7/2)^2 + 1/2

Explanation:

1) given:

y = (x + 3)^2 + (x + 4)^2

2) expand the binomials:

y = x^2 + 6x + 9 + x^2 + 8x + 16

3) add like terms:

y = 2x^2 + 14x + 25

4) take common factor 2 of the first two terms:

y = 2 (x^2 + 7x) + 25

5) complete squares for x^2 + 7x

x^2 + 7x = [x +(7/2)x ]^2 - 49/4

6) substitue x^2 + 7x = (x + 7/2)^2 - 49/4 in the equation for y:

y = 2 [ (x + 7/2)^2 - 49/4] + 25

7) take -49/4 out of the square brackets.

y = 2 (x + 7/2)^2 - 49/2 + 25

8) add like terms:

y = 2(x + 7/2)^2 + 1/2

And that is the vertex for of the given expression.

7 0

3 years ago

Mr. Wu rides his bike at 6 mph to the bus station. He then rides the bus to work, averaging 30 mph.

pshichka [43]

Answer:

26 mi

Step-by-step explanation:

Convert 20 min to hrs: 20/60 = 1/3 hr

Let t = time on the bike

then

t-(1/3) = time on the bus

Write a dist equation Dist = speed * time:

Bike dist + bus dist = 26 mi

6t + 30[t-(1/3)] = 26

6t + 30t - 10 = 26

36t = 26 + 10

36t = 36

t = 1 hr on the bike

6 mph for 1 h = 6 mi from house to the bus station

Check solution by finding the distance

6(1) + 30(2/3) =

6 + 20 = 26 mi

5 0

2 years ago