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2 years ago

How much would it cost to buy 10 pens and 10 pencils from the school store

Mathematics

1 answer:

Pepsi [2]2 years ago

8 0

Answer:

Step-by-step explanation:

500

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To solve y and x, I am adding a picture

Viktor [21]

Answer:

$x =\sqrt 5$

$y = \sqrt{5$

Step-by-step explanation:

Given

The attached triangle

Required

Solve for x

Considering angle 45 degrees, we have:

$\cos(45) = \frac{y}{\sqrt{10}}$ --- cosine formula i.e. adj/hyp

Solve for y

$y = \sqrt{10} * \cos(45)$

In radical form, we have:

$y = \sqrt{10} * \frac{1}{\sqrt 2}$

$y = \sqrt{10/2}$

$y = \sqrt{5$

To solve for x, we make use of Pythagoras theorem

$x^2 + y^2 = (\sqrt{10})^2$

$x^2 + y^2 =10$

Substitute for y

$x^2 + (\sqrt 5)^2 =10$

$x^2 + 5 =10$

Collect like terms

$x^2 =10-5$

$x^2= 5$

Solve for x

$x =\sqrt 5$

4 0

3 years ago

In a market research survey of 29012901 motorists, 255255 said that they made an obscene gesture in the previous month. complet

harina [27]

A. 1-255255/29012901=0.991202017 is the probability of not making an obscene gesture.
b. The probability of none of 5050 making an obscene gesture is (a) raised to the power of 5050: 4.1591E-20 approx. We have not used the 5% rule in this binomial distribution.

8 0

3 years ago

48 divided by4 +c^3, c=2

KatRina [158]

Answer:

Step-by-step explanation:

6 0

3 years ago

Find the value of x that makes m || n ?

kondor19780726 [428]

Answer:

Step-by-step explanation:

3 0

3 years ago

PLEASE HELP ASAP

Sliva [168]

Answer:

reflection across y

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers