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3 years ago

What is the answer to x - 10 + -6 + 4

Mathematics

1 answer:

mariarad [96]3 years ago

8 0

Answer: x-12

Step-by-step explanation:

Simplify.

−

x−10−6+4

2 Collect like terms.

(

−

)

x+(−10−6+4)

3 Simplify.

−

x−12

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Which other parts must be equal for triangle ABC= triangle MTR by

lesya692 [45]

Answer:

see below

Step-by-step explanation:

ASA stands for Angle-side-Angle

thus, for ∆ABC $\cong$ ∆MTR

$\displaystyle \angle C \cong \angle R$

SAS stands for Side-angle-Side 

thus,for ∆ABC $\cong$ ∆MTR

$\displaystyle \overline{ MR }\cong \overline{MT}$

likewise,

AAS stands for Angle-Angle-Side

thus,for ∆ABC $\cong$ ∆MTR

$\displaystyle \angle M \cong \angle T$

7 0

3 years ago

2(2x-6) = 28 solve....

AVprozaik [17]

Answer:

Step-by-step explanation:

simplify

4x-12=28

4x=40

x=10

---------{NOTICE}----------

If you have any additional questions the best way to reach me is via discord

user: michaelsaltandpepper#0001

6 0

3 years ago

1. Bob tried to answer the following question by finding the missing angle and rounding the answer to the nearest degree.

iren2701 [21]

Answer:

Part 1)

Bob's mistake was to have used the cosine instead of the sine

The measure of the missing angle is $53.13\°$

Part 2) The surface area of the pyramid is $288\ cm^{2}$

Step-by-step explanation:

Part 1)

Let

x----> the missing angle

we know that

In the right triangle o the figure

The sine of angle x is equal to divide the opposite side angle x to the hypotenuse of the right triangle

$sin(x)=\frac{16}{20}$

$x=arcsin(\frac{16}{20})=53.13\°$

Bob's mistake was to have used the cosine instead of the sine

Part 2) we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces

$SA=b^{2}+4[\frac{1}{2}(b)(h)]$

where

b is the length side of the square

h is the height of the triangular lateral face

In this problem

$h=b/2$ -------> by an 45° angle

$b=2h$

$sin(45\°)=\frac{h}{6\sqrt{2}}$

$h=6\sqrt{2}(sin(45\°))=6\ cm$

Find the value of b

$b=2(6)=12\ cm$

Find the surface area

$SA=12^{2}+4[\frac{1}{2}(12)(6)]=288\ cm^{2}$

3 0

4 years ago

The histogram represents a survey from 390 families about the number of children in each family. How many families from the surv

Mama L [17]

Answer:

There are 4 dots in categories 0 and 1; 9 dots in categories 2 and 3; and 2 dots in categories 4 and 5. The histogram with bar lengths 4, 9, and 2 is the appropriate choice.

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4 years ago

write an inequality or equation for this question. Maria wants to bike 50 miles. she has already biked 28 miles. If she bikes th

abruzzese [7]

50-28=22
22/3= 7.3

Maria will bike for 8 days (rounded up from 7).

6 0

3 years ago