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2 years ago

HELP 4 QUESTIONS PLEASE! (if you do all 4 ill pick u as brainliest and 100 pts) pictures below

Mathematics

1 answer:

myrzilka [38]2 years ago

6 0

${\large{\red{\mapsto{\maltese{\underline{\green{\boxed{\blue{\underbrace{\overbrace{\pink{\pmb{\bf{Answer:}}}}}}}}}}}}}}$

x + 42° + 46° = 180° (sum of all angles of triangle)

x + 88° = 180°

x = 180° - 88°

x = 92°

⠀

x + 33° + 25° = 180° (sum of all angles of triangle)

x + 58° = 180°

x = 180° - 58°

x = 122°

⠀

angle of beam = 90°

angle of wall = 75°

angle between beam and wall = 90° - 75° = 15°

⠀

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3 years ago

Calculate (1/4)4 A. 1/4 B. 1 C. 1/256 d. 1/16

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the measurement of PQ?

Sholpan [36]

The measure of PQ is 12.72

<h2>Explanation:</h2>

We have the right triangle ΔPQR and we want to know the measure of PQ. PQ is opposite to ∠R, so from trigonometry we know that:

$sin(\alpha)=\frac{Opposite \ side}{Hypotenuse} \\ \\ \\ Here: \\ \\ \alpha=m\angle R=58^{\circ} \\ \\ Opposite \ side=\overline{PQ} \\ \\ Hypotenuse=\overline{RQ}=15 \\ \\ \\ So: \\ \\ sin(58^{\circ})=\frac{\overline{PQ}}{15} \\ \\ \\ Isolating \ \overline{PQ}: \\ \\ \overline{PQ}=15sin(58^{\circ}) \\ \\ \overline{PQ}=15(0.848)\\ \\ \boxed{\overline{PQ}=12.72}$

<h2>Learn more:</h2>

Right triangles: brainly.com/question/10252821

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4 years ago

A species of phytoplankton measures about 2 × 10−6 in. A grain of sand measures about 1 × 10−4 in. About how many times longer i

taurus [48]

Answer : The grain of sand is 50 times greater than the phytoplankton.

Step-by-step explanation :

As we are given that:

Size of phytoplankton = 2 × 10⁻⁶ in

Size of sand grain = 1 × 10⁻⁴ in

Now we have to determine how many times longer the grain of sand is than the phytoplankton.

We are dividing the sand grain size by the phytoplankton size.

This can be done by equating it as follows:

$\frac{\text{Size of sand grain}}{\text{Size of phytoplankton}}=\frac{1\times 10^{-4}in}{2\times 10^{-6}in}$

$\frac{\text{Size of sand grain}}{\text{Size of phytoplankton}}=50$

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3 years ago

On a map, 1 inch equals 450 miles. Two cities are 635 miles apart. Approximately how far apart are the cities on the map?

UNO [17]

Answer:B

Step-by-step explanation:

A is wrong because it's less than the 450.

D is wrong because 2 inches would equal 900. So, you're down to B or C. Multiply 450×1.4= 630. 450×1.5= 675. 630 is closer to 635, therefore it is the answer.

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3 years ago