3 years ago

7 less than twice a number

Mathematics

2 answers:

Mkey [24]3 years ago

6 0

Answer:

2x-7

Step-by-step explanation:

Nikolay [14]3 years ago

3 0

Answer:

2x-7

Step-by-step explanation:

You might be interested in

Does anyone have a word problem idea for this equation 1.25x = 0.75x + 50

PSYCHO15rus [73]

Answer: Keke, do you love me? Are your riding?

Idk either.

Tips: make it something about money, and the k should stand for kittens

5 0

3 years ago

An object at the top of a building with height 110 feet is thrown upward with an initial speed of 23 ft/s. Find its position z(t

alina1380 [7]

Answer:

Step-by-step explanation:

Given

Height of building is $h=110\ ft$

Initial upward velocity $u=23\ ft/s$

height of object is given by

$z(t)=ut+\frac{1}{2}gt^2$

but building is already at a height of 110 ft so z(t) must be given by

$Z(t)=ut+\frac{1}{2}(-g)t^2+110$

$Z(t)=23\times t-\frac{1}{2}\times 9.8\times t^2$

$Z(t)=-16t^2+23t+110$

Time when it hits is given by when Z(t)=0[/tex]

$-16t^2+23t+110=0$

$t=\frac{-23\pm \sqrt{(23)^2-4\times (-16)\times 110}}{2\times (-16)}$

$t=\frac{-23\pm 87}{-32}$

$t=3.43\ s$

6 0

4 years ago

URGENT. PLEASE HELP WITH PROBLEM WITH EXPLANATION!!!

IRINA_888 [86]

Answer:

D is the answer of the question

3 0

3 years ago

What did Archimedes discover about the centroid of a triangle? (Site 1)

Anna007 [38]

Answer:

Archimedes showed that the point where the medians are concurrent (the centroid) is the center of gravity of a triangular shape of uniform thickness and density

Step-by-step explanation:

8 0

3 years ago

PLS HELP ASAP

MrMuchimi

Answer 38.6

Step-by-step explanation:

21 x .84 = 17.64

17.64 + 21 = 38.64

6 0

3 years ago