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3 years ago

10

Which sign makes the statement true?8.9 8 68100

1 answer:

Lyrx [107]3 years ago

3 0

Well i would say it would be 8.9

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A.42.6 square units<br> B. 128 square units <br> C. 32 square units <br> D. 64 square units

kirill [66]

Answer:

Step-by-step explanation:

D. 64 square units

4 0

3 years ago

PLEASEEE HELP<br> Questions 4 and 5

Ilya [14]

Answer:

Given and explained below.

question 4

using sine rule:

$\sf sinx = \frac{opp}{hyp}$

$\sf sinx = \frac{11}{13}$

$\sf x = sin^{-1}(\frac{11}{13} )$

$\sf x = 57.8$

question 5

using cosine rule:

$\sf cosx =\frac{adj}{hyp}$

$\sf cos(31) =\frac{x}{17}$

$\sf cos(31)*17 =x$

$\sf x = 14.6$

4 0

2 years ago

Read 2 more answers

If 1st and 4tg terms of G.p are 500 and 32 respectively it's second term is ?

bixtya [17]

Answer:

$T_{2} = 200$

Step-by-step explanation:

Given

Geometry Progression

$T_1 = 500$

$T_4 = 32$

Required

Calculate the second term

First, we need to write out the formula to calculate the nth term of a GP

$T_n = ar^{n-1}$

For first term: Tn = 500 and n = 1

$500 = ar^{1-1}$

$500 = ar^{0}$

$500 = a$

$a = 500$

For fought term: Tn = 32 and n = 4

$32 = ar^{4-1}$

$32 = ar^3$

Substitute 500 for a

$32 = 500 * r^3$

Make r^3 the subject

$r^3 = \frac{32}{500}$

$r^3 = 0.064$

Take cube roots

$\sqrt[3]{r^3} = \sqrt[3]{0.064}$

$r = \sqrt[3]{0.064}$

$r = 0.4$

Using: $T_n = ar^{n-1}$

$n = 2$ $r = 0.4$ and $a = 500$

$T_{2} = 500 * 0.4^{2-1}$

$T_{2} = 500 * 0.4^1$

$T_{2} = 500 * 0.4$

$T_{2} = 200$

<em>Hence, the second term is 200</em>

5 0

3 years ago

Find the area and perimeter of the triangle. Select the two answers that apply and round to the nearest tenth.

Aloiza [94]

Answer:

p

Step-by-step explanation:

6 0

2 years ago

Someone help me with this question!

VMariaS [17]

Answer: $160^{\circ}$

Step-by-step explanation:

By the exterior angle theorem,

$4x-14+5x-182=5x-100\\\\9x-196=5x-100\\\\4x=96\\\\x=24\\\\\implies m\angle BCD=20^{\circ}\\\\\implies m\angle BCA=160^{\circ}$

6 0

1 year ago

Read 2 more answers