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Mariana [72]
3 years ago
7

What is the value of x? Enter your answer in the box.

Mathematics
1 answer:
scoray [572]3 years ago
5 0

Answer:

x=11

Step-by-step explanation:

Since the lines in the middle are parallel, we know that both sides are proportional to each other.

6:48 can be simplified to 1:8

Since we know the left side ratio is 1:8, we need to match the right side with the same ratio

We can multiply the ratio by 5 to match 5:3x+7

5:40

5:3x+7

Now we can set up the equation: 40=3x+7

Subtract 7 from both sides

3x=33

x=11

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A ball is thrown in the air from a height of 3 m with an initial velocity of 12 m/s. To the nearest tenth of a second, how long
wel

Answer: 0.3m/s

Step-by-step explanation:

Height/ velocity

3m/12m per sec

Time= 0.25metres per seconds

To the nearest tenth, 0.3m per seconds

5 0
3 years ago
What is the solution set for 2f ≤ 2?
Firlakuza [10]

Answer:

f ≤ 1

Step-by-step explanation:

I hope this helps, I got a few people to help me and really only remembered the answer so sorry I can't teach you much but I have the answer

6 0
3 years ago
Can I get some help with proofs?<br> Picture is attached
aleksandr82 [10.1K]

Give a reason for each step of the proof. 

Given: <1 and <2 are complimentary 

<1 is congruent to <3, 

<2 is congruent to <4 

Prove: <3 and <4 are complimentary 

Statements: Reasons: 

1. <1 and <2 are complimentary 1.Given 

2. m<1 + m<2=90* 2.<u>DEFINITION OF COMPLEMENTARY ANGLES</u>

3. <1 is congruent to <3, <2 is congruent to <4 3.__GIVEN______ 

4. m<1=m<3, m<2=m<4 4.<u>DEFINITION OF CONGRUENT ANGLES_</u>

5. m<3 + m<2=90* 5. <u>SUBSTITUTION PROPERTY (m<1 is replaced by m<3.) </u>

6. m<3 +m<4=90* 6. <u>DEFINITION OF COMPLEMENTARY ANGLES </u>

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8 0
3 years ago
Classify the number -3 into as many categories as it belongs: Natural number, whole number, integer, or rational number.
Effectus [21]
-3 is an integer and a rational number.


Natural numbers and while numbers refer to positive numbers, so -3 cannot be either of those.
3 0
3 years ago
PLEASE LED ME THE ANSWER<br> ILL GIVE YOU 20 POINTS
krok68 [10]

Answer:

DEC+DEF=180

DEC=180-116

DEC=64°

in triangle DCE

angle D+angle C+angle E=180

7y+6+4y+64=180

11y+70=180

11y=180-70

11y=110

y=110/11

y=10°

angle C=4y

=4(10)

=40°

3 0
3 years ago
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