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2 years ago

Which ordered pair is a solution of the equality y= 2x + 5

Mathematics

1 answer:

san4es73 [151]2 years ago

4 0

Answer:

huh are u asking to solve it

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Can SOMEONE PLEASE HELP ME I NEED HELP!!!! :( PLEASEE

joja [24]

Answer:

5).

According to the question,

CD+DE=CE

2+13=2x-3

15=2x-3

15+3=2x

18=2x

18/2=x

8=x

6).

According to the question,

AB+BC=AC

5x-16+3x-6=2x+20

8x-22=2x+20

8x-2x=20+22

6x=44

x=44/6

x=7.33

Step-by-step explanation:

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4 0

2 years ago

Read 2 more answers

A geologist had two rocks on a scale that weighed 2 1/2 lbs together. Rock A was 1/7 of the total weight. How much did Rock A we

GenaCL600 [577]

The total weight is 2 1/2 lbs

Rock A is 1/7 of the total weight....so it is 1/7 of 2 1/2 lbs..." of " means multiply

1/7 * 2 1/2 =
1/7 * 5/2 =
5/14 lbs <==

7 0

3 years ago

At the base of a pyramid, a surveyor determines that the angle of elevation to the top is °. At a point meters from the base, th

riadik2000 [5.3K]

Answer:

$\frac{(\sin 18^\circ)}{75} = \frac{(\sin 35^\circ)}{x}$

Step-by-step explanation:

Incomplete question:

$\angle CBD = 53^\circ$

$\angle CAB = 35^\circ$

$AB = 75$

See attachment for complete question

Required

Determine the equation to find x

First, is to complete the angles of the triangle (ABC and ACB)

$\angle ABC + \angle CBD = 180$ --- angle on a straight line

$\angle ABC + 53= 180$

Collect like terms

$\angle ABC =- 53+ 180$

$\angle ABC =127^\circ$

$\angle ABC + \angle ACB + \angle CAB = 180$ --- angles in a triangle

$\angle ACB + 127 + 35 = 180$

Collect like terms

$\angle ACB =- 127 - 35 + 180$

$\angle ACB =18$

Apply sine rule

$\frac{\sin A}{a} = \frac{\sin B}{b}$

In this case:

$\frac{\sin ACB}{AB} = \frac{\sin CAB}{x}$

This gives:

$\frac{(\sin 18^\circ)}{75} = \frac{(\sin 35^\circ)}{x}$

4 0

3 years ago

Read 2 more answers

I need to get all of them solved by tomorrow, and I have no idea where to start with any of them

Tems11 [23]

Answer:

1- x=4,3

2- x= 2, 5/6

3- x= i dont know

4- b-

d- $2x\frac{3}{2}$

6 0

2 years ago

Use the binomial theorem to expand the binomial (x + -2y)8.

m_a_m_a [10]

Answer:

256x8y8256+2x8y8+56x3y7+28x7y2+126x5y4+x8+1048x7y+1932x6y2+2240x5y3+2310x4y4+2296x3y5+1932x2y6+1048xy7+y8+8x6y+56xy3+28x2y+8xy

Step-by-step explanation:

3 0

3 years ago