All categories

3 years ago

Help help help from !!!!!!!!!!!!!

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

(35/5) ÷ (-3/4)

= (35/5) x (-4/3)

= 7 x (-4/3)

= -(7 x 4) / 3

= -28 / 3

hence the numerator is 28

vova2212 [387]3 years ago

6 0

Answer:

$-\frac{28}{3} \\$

Step-by-step explanation:

$\frac{35}{5} \div - \frac{3}{4} \\ \\ \frac{7}{ -\frac{3}{4} } \\ \\ -\frac{28}{3}$

You might be interested in

Hey can some one help me out

Archy [21]

I believe the correct situation is C

3 0

3 years ago

Make x the subject of the formula y= b/ax

neonofarm [45]

Answer:

x=b/(ay)

Step-by-step explanation:

To make x the subject of the formula, we basically have to isolate the x.

To do this we first multiply both sides by x.

xy=b/a

Now, to isolate the x, we simply divide by y,

x=b/(ay)

So x=b/(ay) is our answer

8 0

3 years ago

What is the domain and range for:<br> y = arcsin(tanx)

Semmy [17]

The graph looks like this, on the enclosed pic:
One feature is that it's periodic and torn (has cut-off points), meaning the domain is the same as in case of tan(x): x€R and x =/= π/2+πn.
The range equals the range of arcsin(x): -π/2<=y<=π/2 OR y€[-π/2;π/2]
Hope could understand and if it helped! :)

7 0

3 years ago

2. Suppose the temperature that most foods can stay bacteria free in restaurants varies approximately according to a normal dist

vagabundo [1.1K]

Answer:

28.4

Step-by-step explanation:

Given that:

Mean, m = 31.3

Standard deviation, s = 2.8

Since, data is normally distributed :

P(x < 0.15) gives a Z value of - 1.036

Using the Zscore formula :

Z = (x - mean) / standard deviation

-1.036 = (x - 31.3) / 2.8

-1.036 * 2.8 = x - 31.3

-2.9008 = x - 31.3

-2.9008 + 31.3 = x

28.3992 = x

The temperature which correlates to the bottom 15% of the distribution is 28.4

7 0

2 years ago

A dozen box of bagels costs $4.98. Because of inflation the price increases by 4% a year.

Olenka [21]

A=p (1+r)^t
A future value
P present value 4.98
R rate 0.04
T time

After 3 years
A=4.98×(1+0.04)^(3)
A=5.60

7.50=4.98 (1.04)^t
Solve for t
T=log(7.50÷4.98)÷log(1.04)
T=10 years

Hope it helps:-)

3 0

3 years ago