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2 years ago

I need #4 done (show work) will give brainliest!

Mathematics

2 answers:

Agata [3.3K]2 years ago

6 0

Answer:

GGGGGGGGGGGG

Step-by-step explanation:

WOW A LEADERBOARD ANSWERER

Fantom [35]2 years ago

3 0

Step-by-step explanation:

<u>Statement Reason </u>

BA and BC opposite rays Given

AC is a straight line Definition of opposite rays

∠ABD + ∠CBD = ∠ABC Angle addition postulate

∠ABD + ∠CBD = 180° Definition of linear pair

m∠ABD = 5x + 7 Given

m∠CBD = 9x + 19 Given

5x + 7 + 9x + 19 = 180 Substitution property of equality

14x = 180 - 26 Subtraction property of equality

x = 154/14 Division property of equality

x = 11 Proved

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Find the area of the composite figure in terms of the figure (use 3.14 for pi)

svp [43]

Answer:

105.12 ft²

Step-by-step explanation:

Let's first find the area of the rectangle.

$10\cdot8=80$ ft², so the rectangle has an area of 80ft².

To find the area of the semi-circle, we find the area of a whole circle and divide by two.

The formula to find the area of a circle is $\pi r^2$ . The radius is 4, as the diameter is 8.

$3.14\cdot4^2$

$3.14\cdot16$

$50.24\div2=25.12$

Add 80 and 25.12:

$80+25.12=105.12$

Hope this helped!

5 0

3 years ago

What is the volume of a rectangular prism when the measures are multiplied by 4?

koban [17]

Answer: A. 3072 cm³

Step-by-step explanation:

The formula for determining the volume of a rectangular prism is expressed as

Volume = length × width × height

Looking at the diagram,

Length = 6 cm

Width = 4 cm

Height = 2 cm

When the measures are multiplied by 4, then

Length = 6 × 4 = 24 cm

Width = 4 × 4 = 16 cm

Height = 2 × 4 = 8 cm

Therefore,

Volume = 24 × 16 × 8 = 3072 cm³

6 0

2 years ago

Read 2 more answers

What is the surface area of the solid?

sertanlavr [38]

Answer:

othe large one is 234 i ran out of time sorry i didnt get circleto t

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop compute

skad [1K]

Answer:

The null hypothesis is $H_o : p = 0.67$

The alternative hypothesis is $H_a : p \ne 0.67$

The sample proportion is $\^ p = 0.65$

Step-by-step explanation:

From the question we are told that

The sample size is n = 546

The number of people that use a laptop overnight is $k = 355$

The population proportion is $p = \frac{2}{3} = 0.67$

Generally

The null hypothesis is $H_o : p = 0.67$

The alternative hypothesis is $H_a : p \ne 0.67$

Gnerally the sample proportion is mathematically represented as

$\^ p = \frac{ k}{n}$

=> $\^ p = \frac{ 355}{546}$

=> $\^ p = 0.65$

4 0

3 years ago

Can you help me please

Bond [772]

Answer:

dghsjk

Step-by-step explanation:

gdhsjka

8 0

3 years ago