All categories

3 years ago

Points a and b both lie on the line y=3x+7. Work out the missing y coordinate for a and the missing x coordinate for B?

Mathematics

1 answer:

Ghella [55]3 years ago

8 0

Answer:

y coordinate = 13

x coordinate = -1

Step-by-step explanation:

Trail and error lol

You might be interested in

Need help with number 12 n 13 Asap

Arlecino [84]

Step-by-step explanation:

it's explained in the solution

7 0

3 years ago

What is x pls and than you

Sunny_sXe [5.5K]

Answer:

Step-by-step explanation:

5x - 10 = 0

+10 +10

5x = 10

/5 /5

x = 2

3 0

3 years ago

Read 2 more answers

A rectangle is 6yards longer than it is wide. Find the dimensions of the rectangle if it’s area is 187 square yards

emmasim [6.3K]

Answer:

Width = 11 yards

Length = 17 yards

Step-by-step explanation:

First of all, the length of the rectangle is 6 yards longer than the width, this means, length = width + 6 yards. This dimensions can be represented on figure 1, where <em>w</em> is width, and <em>l</em>, for length.

We know the area of a rectangle is A = width x length

For our case 187 = w . (w + 6)

Using the Distributive Property for the multiplication we obtain

$187 = w^{2} +6w$

$w^{2} +6w-187 =0,$

Using the quadratic formula $w=\frac{-b\±\sqrt{b^{2}-4ac } }{2a}$ where a = 1, b = 6, c = - 187 and replacing into the formula, we will have:

$w=\frac{-6\±\sqrt{6^2-4(1)(-187)} }{2(1)}$

$w=\frac{-6\±\sqrt{36+748} }{2}=\frac{-6\±\sqrt{784} }{2}=\frac{-6\±28}{2}$

We have two options: $w=\frac{-6+28}{2}=\frac{22}{2}=11 yards$

$w=\frac{-6-28}{2}=\frac{-34}{2}=-17 yards$ But a distance (width) can not be negative so, this answer for w must be discarded.

The answer must be width = 11 yards.

To find the length $l =\frac{187}{11}=17 yards$

6 0

3 years ago

A women bought some large frames for $14 each and some small frames $5 each at a closeout sale. if she bought 24 frames for $183

TEA [102]

Let the no of large frames bought be X

Then the no of smaller frames bought will be (17 - X )

Cost incurred = 14X + 5( 17 - X) = 130

14X + 85 - 5X = 130

9X = 45

X = 5
Answer 5 large frames and 12 small frames

Check

5X14 = 70
12X5 = 60
ADD = 130$

7 0

3 years ago

5. If △RST ∼△EFG, SH is an altitude of △RST, FJ is an altitude of△EFG, ST = 6, SH = 5, and FJ = 7, find FG

natulia [17]

Answer:

8.4

Step-by-step explanation:

In similar triangles, corresponding measures are proportional.

FG/FJ = ST/SH

FG = FJ×ST/SH = 7×6/5 . . . . solve for FG, put in given values

FG = 8.4

4 0

3 years ago