4 fifths take away 1 half

Answers

Answer 1

Answer: The picture shows you have to find the least common multiple of both the denominator. Change the numerators accordingly and subtract normally.

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The value of p in 18+6p=90 is???

Answers

Step-by-step explanation:

HOPE IT HELPS!!!!!!!!!

Answer:

$p=12$

Step-by-step explanation:

$18+6p=90\:$

$18+6p-18=90-18$

$6p=72$

$\cfrac{6p}{6}=\cfrac{72}{6}$

$p=12$

HOPE IT HELPS!!

Question 5Two similar triangles are shown in the diagram below, where
AABC - ADEF.
Based on the dimensions in the diagram, what is the
perimeter of AABC?
A-9 in.
B-10 in.
C-9.5 in.
D-10.5 in.

Answers

Answer:

Perimeter of ΔABC is 9.5 in.

Step-by-step explanation:

Given:

ΔABC $\sim$ ΔDEF

DE = 6 in.

EF = 5.25 in.

DF = 3 in.

AB = 4 in.

We need to find the Perimeter of ΔABC.

Solution:

First we will find the sides of ΔABC.

Now By Triangle similarity property which states that:

"When two triangles are similar the the ratio of their corresponding sides are equal."

From Above property we can say that;

$(AB)/(DE) =(BC)/(EF)=(AC)/(DF)\n\n(4)/(6)=(BC)/(5.25)=(AC)/(3)$

Now we will find BC and AC

$(4)/(6)=(BC)/(5.25)\n\nBC = (4*5.25)/(6)= 3.5 \ in$

Also;

$(4)/(6)=(AC)/(3)\n\nAC = (4*3)/(6) = 2 \ in$

Now In ΔABC

AB = 4 in

BC = 3.5 in

AC =2 in.

Now Perimeter of ΔABC can be calculated as sum of all sides.

Perimeter of ΔABC = AB +BC +AC = 4 + 3.5 + 2 = 9.5 in

Hence Perimeter of ΔABC is 9.5 in.

Examples of Trigonometry

Answers

hope this picture helps you

Answer:Finding the length of a flagpole when you know 2 angles and the length of the shadow

Step-by-step explanation:

About what percentage of the data lies within 2 standard deviations of the mean in a normal distribution?

Answers

we should do the whole math calculation, but for ease, we know that the percentage contained within 2 std deviations of a normal distribution is:
= 2(13.6) + 2(34.1)
= 95.4%

Answer:

95%

Step-by-step explanation:

:))

how is the number of lines of symmetry for a regular polygon connected to the number of sides of the polygon

Answers

Excluding some quadrilaterals, some polygons like a hexagon or square have the same amount of lines of symmetry as they do sides.

May someone please tell me the answer

Answers

The third one is the correct answer

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