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bogdanovich [222]
3 years ago
6

Question 3

Mathematics
1 answer:
qwelly [4]3 years ago
4 0
A . Originally the answer would be c but the 9 has already been moved to the other side so it turns into a positive .
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Al uses a box in the shape of a rectangular prism as shown in the diagram to for his coin collection.
lions [1.4K]

Answer:

4 x 8.5 x 12.5 =425 (multiple hight x width x length)

The volume of the box is 425in^{3}

7 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Lines AB and CD
NARA [144]

Lines AB and CD are parallel. Using the given coordinates

The equation of line CD is y=-\frac{1}{4}x+7

Given :

Lines AB and CD are parallel. The coordinates of point A are (-2,5), the coordinates of point B are (6,3),the coordinates of point D are (8,5)

When two lines are parallel then their slopes are equal

Lets find the slope of AB using the given points

A is (-2,5)  and B is (6,3)

Find slope using slope formula

slope m =\frac{y_2-y_1}{x_2-x_1} =\frac{3-5}{6+2} =-\frac{1}{4}

Slope of AB is -\frac{1}{4}

Slope of AB  and CD  are same

Slope of CD is -\frac{1}{4}

Now we find equation of line CD y=mx+b

Use point slope formula

y-y_1=m(x-x_1)\\

use the given point D(8,5) and slope m

Substitute the values

y-5=-\frac{1}{4} (x-8)\\\\y-5=-\frac{1}{4}x+2\\y=-\frac{1}{4}x+2+5\\y=-\frac{1}{4}x+7

The equation of line CD is y=-\frac{1}{4}x+7

Learn more : brainly.com/question/17301100

5 0
3 years ago
Please help me with this question
horsena [70]
The answer is (x+1)x(3x-2)
5 0
3 years ago
A 26 ft long ramp is used to reach 10 ft up a wall. The ramp covers a horizontal distance of 24 ft. To make the ramp less steep,
Anika [276]

Answer:

The length of new ramp is 49.03 ft.

Step-by-step explanation:

It is given that 26 ft long ramp is used to reach 10 ft up a wall. The ramp covers a horizontal distance of 24 ft.

If the horizontal distance is doubled, then the horizontal distance is 48 ft. The height remains same. Therefore the height of ram is 10 ft.

Use pythagoras in new right angle triangle.

hypotenuse^2=base^2+perpendicular^2

(AE)^2=(AD)^2+(ED)^2

(AE)^2=(48)^2+(10)^2

(AE)^2=2304+100

AE=\sqrt{2404}

AE=49.0306027\approx 49.03

Therefore the length of new ramp is 49.03 ft.

7 0
3 years ago
Edward doesn't know how to do math. Can you help me help him lol
Elan Coil [88]

Answer: d = 147/4 or 36.75

Edward didn't isolate for 'd' by rearranging the terms.

(4/7)d = 21 (Multiply both sides by 7 to get rid of the 7 on the left side)

4d = 21 · 7

4d = 147 (Divide both sides by 4 to isolate for d)

d = 147/4 or 36.75

6 0
3 years ago
Read 2 more answers
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