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3 years ago

Help plz

Mathematics

2 answers:

uysha [10]3 years ago

7 0

Answer:

you have to make a pyramid.

Step-by-step explanation:

igor_vitrenko [27]3 years ago

3 0

Answer:

See below

Step-by-step explanation:

Here's one way to do it.

Slide matches 1 and 2 into the positions indicated by the blue arrows, as in the first figure below.

The matches will end up as shown in the second figure.

The matches form two large triangles and two small ones.

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4. Determine all unknown sides and angles to 1 decimal place.

Ksju [112]

Answer:

The unknown sides are 60.81cm and 51.57cm while the unknown angle is 58degrees

Step-by-step explanation:

4a) Given the following

Opposite side = 38cm (side facing the given angle)

Required

Adjacent and hypotenuse side

According to SOH CAH TOA

$tan \theta = \frac{opp}{hyp}\\tan 32=\frac{38}{hyp}\\hyp=\frac{38}{tan 32}\\hyp=\frac{38}{0.6249}\\hyp= 60.81cm$

Next is to get the adjacent

$Cos 32=\frac{adj}{60.81}\\adj=60.81cos32\\adj=60.81(0.8480)\\adj= 51.57cm$

Next is to get the missing

Since sum of angle in the triangle is 180degrees

32 + 90 + x = 180

122 + x = 180

x = 180 - 122

x = 58degrees

7 0

3 years ago

Find 3x-y-3z x=-2 y=1 and z=-2

mrs_skeptik [129]

Just fill in the problem... 3*-2-1-3*-2

8 0

2 years ago

Read 2 more answers

What is the slope for this??

aleksandr82 [10.1K]

Answer:

slope: $\frac{13}{4}$

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I need help to solve the problem

natta225 [31]

Since all triangles equal 180 degrees. You will subtract (128 + 23) from 180.

180 - 146 is 34 degrees.

x=34

8 0

3 years ago

Read 2 more answers

The length of a rectangular swimming pool is twice as long as its width. If the perimeter of the pool is

Nitella [24]

The perimeter of a rectangle is the sum of its sides, which are two widths and two lengths:

$p=w+w+l+l$

Since the length is twice the width, we have $l=2w$ , and the formula for the perimeter becomes

$p=w+w+2w+2w=6w$

So, we have

$6w=120 \iff w=\dfrac{120}{6}=20$

4 0

3 years ago