All categories

2 years ago

April is an avid chess player. She sets up a coordinate system on her chess board so she can record

Mathematics

1 answer:

Grace [21]2 years ago

6 0

Answer:

$6.7\ units$

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

(4,2) and (7,8)

substitute the values in the formula

$d=\sqrt{(8-2)^{2}+(7-4)^{2}}$

$d=\sqrt{(6)^{2}+(3)^{2}}$

$d=\sqrt{45}\ units$

$d=6.7\ units$

You might be interested in

Please help I’ll give brainliest

Feliz [49]

Answer:

7 sales

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A bee flies at 10 feet per second directly to a flower bed from its hive. The bee stays at the flower bed for 13 minutes, and th

rosijanka [135]

Answer:

barbilat hahaha

baho bilat

7 0

2 years ago

What is the geometric mean of 4 and 10

GalinKa [24]

Answer: 6.3

Step-by-step explanation:

The formula for geometric mean is given as :

G.m = $\sqrt{pq}$

Therefore , the geometric mean between 4 and 10 will be :

G.m = $\sqrt{4(10)}$

= $\sqrt{40}$

= 2 $\sqrt{10}$

= 6.3

8 0

3 years ago

What two rational expressions sum to <img src="https://tex.z-dn.net/?f=%5Cfrac%7B4x%2B2%7D%7Bx%5E%7B2%7D-9%2B8%20%7D" id="TexFor

bulgar [2K]

Answer:

$\frac{4x+2}{x^2 - 9x + 8} = \frac{4x}{(x-8)(x-1)} + \frac{2}{(x-8)(x-1)}$

Step-by-step explanation:

Given

$\frac{4x+2}{x^{2}-9+8 } = \frac{A}{()(x-1)} + \frac{B}{()(x-8)}$

Required

Fill in the gaps

Going by the given parameters, we have that

$\frac{4x+2}{x^{2}-9+8 } = \frac{A}{()(x-1)} + \frac{B}{()(x-8)}$

$x^2 - 9x + 8$ , when factorized is $(x-1)(x-8)$

Hence; the expression becomes

$\frac{4x+2}{(x-1)(x-8)} = \frac{A}{(x-8)(x-1)} + \frac{B}{(x-1)(x-8)}$

Combine Fractions

$\frac{4x+2}{(x-1)(x-8)} = \frac{A + B}{(x-8)(x-1)}$

Simplify the denominators

$4x + 2 = A + B$

By direct comparison

$A = 4x$

$B = 2$

Hence, the complete expression is

$\frac{4x+2}{x^2 - 9x + 8} = \frac{4x}{(x-8)(x-1)} + \frac{2}{(x-8)(x-1)}$

3 0

3 years ago

Read 2 more answers

Active

Ber [7]

Answer:

The expressions for the payment made to Mary are,

(Monday) 90 = 15m + b

(Tuesday) 62 = 8m + b

where m and b are the fee per student and the base fee, respectively. Solving for m and b, the values are 4 and 30.

The equation that represents Mary's earning is

y = 4x + 30

For 20 students,

y = 4(20) + 30 = 110

For Lisa's earnings,

y = 8x + 15

Substituting 20,

y =8(20) + 15 = 175

Thus, Lisa would earn more than Mary by $65.

(Btw this is not my work, I got it from someone else on brainly and wanted to help lol)

7 0

2 years ago