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My name is Ann [436]
3 years ago
15

30 POINTS!! HELP!!! WILLBEMARKEDBRAINLIEST!!

Mathematics
2 answers:
Verizon [17]3 years ago
8 0

Answer:

sophie used the wrong height for the pyramid

Step-by-step explanation:

aleksley [76]3 years ago
8 0

Answer:

C. *Sophie used the wrong height for the pyramid.

Step-by-step explanation:

The height of the pyramid should be:

30 - 4 = 26 mm

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Find the missing fraction.<br> 3<br> 2<br> 3
katovenus [111]
The missing fraction is -1/12
5 0
3 years ago
Desde una altura de 3m un chico patea verticalmente hacia arriba una pelota con una velocidad de 18m/s cual es su posicion 1 seg
Korolek [52]

Answer: la altura es 13.1 m

Step-by-step explanation:

El movimiento descripto es de tipo rectilineo uniformemente variado, más precisamente tiro vertical.

Para calcular la posición al cabo de 1 seg utilizaremos la ecuacionecuación del movimiento descrita como:

y = v0.t - 1/2 g t^2

Donde y es la altura para cualquier momento

v0 es la velocidad inicial 18 m/s

g la aceleración de la gravedad 9.81 m/s2

y t el tiempo medido en segundos

Entonces para calcular la altura después de un segundo:

y = 18 m/s x 1 seg - 1/2 9.81 m/s2 (1 seg)^2 = 18 m - 4.9 m = 13.1 m

7 0
4 years ago
the plane was 4 miles from laguardia airport and was ascending at an angle of 7.7 degrees. Calculate the planes height above gro
inysia [295]
The picture in the attached figure

Let 
h-------> <span>the planes height above ground level at the time of the bird strike
</span>
we know that
sin 7.7°=opposite side angle 7.7°/hypotenuse
where
opposite side angle 7.7°=h
hypotenuse=4 miles
so
sin 7.7°=h/4-------> h=4*sin 7.7°-----> h=0.54 miles

1 mile-----------> 5280 ft
0.54 mile------> x
x=0.54*5280-----> x=2829.79 ft------> 2830 ft

the answer is
2830 ft

6 0
4 years ago
12. A photocopier enlarges by a ratio of 7: 4. A picture
attashe74 [19]

Answer: 2 enlargments

Step-by-step explanation:

Use proportion for each enlargment you do

Side a=6cm                      Side b=4cm

6:4=x:7                             4:4=b1:7

7*6=4a1                             b1=28/4

a1=42/4                              b1=7 after first enlrge

a1=10.5 after first enlarge        7:4=b2:7

10.5:4=a2:7                         b2=49/4

a2=73.5/4                           xb2=12.5 after 2nd enlarge

a2=18.375  after 2nd enlarge                          

                                             12.5:4=b3:7

18,375:4=a3:7                       b3=21.875 cm after 3rd enlargement

a3=32.15after 3rd enlargement

Values after 3rd enlargement are higher than dimension given for picture wall

30 cm by 20 cm

8 0
3 years ago
5.Identify the vertex of the function.
Slav-nsk [51]
Hello : 
x²-6x+3² = (x-3)².....( answer : <span>a)    (3, 0) )</span>
5 0
4 years ago
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