3 years ago

Geometry-

Mathematics

1 answer:

Nana76 [90]3 years ago

7 0

Answer:

6x-21

Step-by-step explanation:

1) draw diagram (in image)

BD=2x-21+4x

combine Like terms

6x-21

You might be interested in

You drive 70 miles per hour but then slow your speed by 15 miles per hour. You then return to your speed of 70 miles per hour. W

Anuta_ua [19.1K]

Driving 70 miles per hour.
Slow your speed means decrease in speed= 70+(-15)=70-15=55 miles/ hr
And then return to speed of 70 miles/hr means add 15 miles to the speed.
We get
70+(-15)+15 =70 miles / hr

Option D is correct.

4 0

3 years ago

Read 2 more answers

When tossing 2 coins, the probability of getting exactly 1 tail is 1/3. <br> A- true <br> B- false

Ghella [55]

The answer is b. False

3 0

4 years ago

Read 2 more answers

Which equation can be used to determine the distance between the origin and (–2, –4)?

OleMash [197]

Answer:its option a

Step-by-step explanation: the distance formula is y sub 1 minus y sub 2

And x sub 1 minus y sub 2

8 0

3 years ago

Read 2 more answers

last week we drove to detriot. at an average speed of 50 miles per hour, the trip took 4 1/2 hours. how far was it?

grigory [225]

Answer:

250

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Write an equation in slope -intercept form for a line that passes through (-2,7) and (14,21)

Georgia [21]

(-2,7) and (14,21)

Find the slope by using the formula $m = \frac{y2 - y1}{x2 - x1}$

Plug in the numbers. $m = \frac{21 - 7}{14 - - 2} 
 \\ m= \frac{14}{16} = \frac{7}{8} 
$

Write it in point slope form first

y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7

y = 7/8x + 8.75

Our final equation would be: <span>y = 7/8x + 8.75</span>

7 0

4 years ago