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4 years ago

PLEASE HELP!!!! I WILL AWARD BRAINLIEST!!! I BEG OF YOU!!!!

Mathematics

1 answer:

Luda [366]4 years ago

6 0

If you look at the figure, you will see that there is an angle opposite each angle whose value we have. Therefore, just do (3x+2x+x)·2= 6x·2=12x

Now, 360/12=30°

x=30°

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What is 1 7/8 times 5/6

hoa [83]

$Solution, 1\frac{7}{8}\cdot \frac{5}{6}=1\frac{9}{16}\quad \left(\mathrm{Decimal:\quad }\:1.5625\right)$

$Steps:$

$\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 1\frac{7}{8}=\frac{15}{8}, =\frac{15}{8}\cdot \frac{5}{6}$

$\mathrm{Cross-cancel\:common\:factor:}\:3, =\frac{5}{8}\cdot \frac{5}{2}$

$\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d}, =\frac{5\cdot \:5}{8\cdot \:2}$

$\mathrm{Multiply\:the\:numbers:}\:5\cdot \:5=25, =\frac{25}{8\cdot \:2}$

$\mathrm{Multiply\:the\:numbers:}\:8\cdot \:2=16, =\frac{25}{16}$

$\mathrm{Convert\:improper\:fractions\:to\:mixed\:numbers}:\quad \frac{25}{16}=1\frac{9}{16}, =1\frac{9}{16}$

Hope this helps!!!

3 0

3 years ago

A square pyramid has a base length of 4 inches. The height of each triangular face is 12 inches. What is the surface area of the

Wittaler [7]

Answer:

The surface area of the given pyramid is 112 $inches^{2}$ .

Step-by-step explanation:

Base length of the pyramid = 4 inches

Area of the base = $length^{2}$

= $4^{2}$

= 16

Area of its base = 16 $inches^{2}$

Area of one of its triangular surface = $\frac{1}{2}$ x base x height

= $\frac{1}{2}$ x 4 x 12

= 2 x 12

= 24 $inches^{2}$

Area of all its four triangular surfaces = 4 x 24

= 96 $inches^{2}$

surface area of the pyramid = sum of areas of all its surfaces

= 16 + 96

= 112 $inches^{2}$

The surface area of the given pyramid is 112 $inches^{2}$ .

8 0

3 years ago

Please help me with this.

blondinia [14]

Answer:

Step-by-step explanation:

a,c,d are same but b is different.

5 0

3 years ago

Which property is demonstrated?

Oksanka [162]

The Associative property of addition is being shown, because it doesn't matter the order of the terms.

4 0

3 years ago

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What is the common ratio for the sequence:<br> 28, 14, 7, 3.5...

SCORPION-xisa [38]

Answer:

r = $\frac{1}{2}$

Step-by-step explanation:

The common ratio r is calculated as

r = $\frac{14}{28}$ = $\frac{7}{14}$ = $\frac{3.5}{7}$ = $\frac{1}{2}$

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3 years ago

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