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Blababa [14]
3 years ago
11

Please help me I am currently struggling with this please help as soon as possible

Mathematics
1 answer:
Step2247 [10]3 years ago
4 0
You strugglein on “8,9”?
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7 mark question. The answers on brainly only got me 3 so please help.
Nady [450]

Answer:

See step by step answer

Step-by-step explanation:

the factors are (x+22)(x-10)=0

so x = -22 and 10, but a dimension cannot be negative, so the answer for x is 10 and then if you plug it back in the dimensions are 4 cm, 11 cm and 21 cm.

When you multiply 4 * 11 * 21 = 924, so you know it's correct.

8 0
3 years ago
Factor completely 4u^2 + 28u + 49
nata0808 [166]
4u^2+28u+49=4u^2+14u+14u+49=2u(u+7)+7(u+7)=\\ \\=(u+7)(2u+7)
3 0
3 years ago
Help with this please!!!!!
Vlad [161]
Gh is a half of DF because it is a midline
2(3x-4)=9x-59
6x-8=9x-59
3x=51
X=17
6 0
3 years ago
Help this will save my grade. I’m right on the edge of failing!
8090 [49]

Answer:

Step-by-step explanation:

1.  The slope is -5/2

2. There is no slope for the second one it's just y=3

3. The slope is 3

4. These are perpendicular lines

5. These lines are parallel.

6. These lines are neither perpendicular nor parallel.

7. These lines are perpendicular

8.  y = 4/3x - 2

9.  y = -1/2x + 5

10. x = -1  

Hope this helps!

5 0
3 years ago
Given that P = (2, 9) and Q = (4, 14), find the component form and magnitude of vector PQ.
vredina [299]
The magnitude of the vector is
\sqrt{2 {}^{2} + 5 {}^{2} } = \sqrt{29}
the component form is
<2,5>
8 0
3 years ago
Read 2 more answers
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