All categories

3 years ago

IM STRESSED OUT AND MY TEACHER ALREADY CALLED MY MOM

Mathematics

2 answers:

Hoochie [10]3 years ago

6 0

So i’m pretty sure you’re supposed to add them. first you have to find a common denominator. the easiest way to do this is to multiply the denominators! so
3•7=21
we have our denominator
now we have to convert both fractions into new fractions with the denominator
so for the first fraction, we got 21 by multiplying by 7, so we have to multiply the whole equation by 7:
2•7/3•7
that makes 14/21 (our first fraction!)
now the second fraction we multiplied by 3, so:
5•3/7•3
that makes 15/21
now we have to add them!
14/21 + 15/21 = 29/21
there’s one complete number in that fraction, because 21/21 reduces to 1/1 which is just one. but we still have 8 left over, so the simplified answer is:
1 8/21

hope this helped!!

kondaur [170]3 years ago

5 0

Answer:

B. 1 8/21

Step-by-step explanation:

trust

You might be interested in

Find the volume of a cylinder with a radius of 3" and a height of 12"

Natalija [7]

Here's the formula you need to use:

The volume of any cylinder is = (pi) x (radius)² x (height) .

Take that formula.
Write your "3 inches" in place of "radius".
Write your "12 inches" in place of "height".
Write "3.14" in place of "pi".
Do the arithmetic, and bada-bing, you'll have the volume.

8 0

3 years ago

Read 2 more answers

Two chords cross through a circle and intercept one another at a point on the circumference of the circle, forming an inscribed

maxonik [38]

The inscribed angle is half the measure of the intercepted arc:
142°/2 = 71°

6 0

3 years ago

Find sec theta if theta is in quadrant 4 and sin theta= -1/5

lara31 [8.8K]

Answer:

$\frac{5}{2\sqrt{6} }$

Step-by-step explanation:

Since Θ is in fourth quadrant then cosΘ > 0, as is secΘ

Given

sinΘ = - $\frac{1}{5}$ , then

cosΘ = $\sqrt{1-(-1/5)^2}$

= $\sqrt{1-\frac{1}{25} }$ = $\sqrt{\frac{24}{25} }$ = $\frac{2\sqrt{6} }{5}$

Hence

secΘ = $\frac{1}{\frac{2\sqrt{6} }{5} }$ = $\frac{5}{2\sqrt{6} }$

5 0

3 years ago

Read 2 more answers

A company produces and sells homemade candles and accessories. Their customers commonly order a large candle and a matching cand

Butoxors [25]

Answer:

P(T<683) = 0.1587 = 15.87% ≈ 16%.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Sum of normal variables:

When two normal variables are added, the mean is the sum of the means, while the standard deviation is the square root of the sum of the variances.

The weights of these candles have a mean of 500g and a standard deviation of 15g. The weights of the candle stands have a mean of 200g and a standard deviation of 8g.

The package consists of one candle of each type. So

$\mu = 500 + 200 = 700$